// host stub function
void ops_par_loop_PdV_kernel_predict(char const *name, ops_block block, int dim,
                                     int *range, ops_arg arg0, ops_arg arg1,
                                     ops_arg arg2, ops_arg arg3, ops_arg arg4,
                                     ops_arg arg5, ops_arg arg6, ops_arg arg7,
                                     ops_arg arg8, ops_arg arg9, ops_arg arg10,
                                     ops_arg arg11, ops_arg arg12,
                                     ops_arg arg13) {

  // Timing
  double t1, t2, c1, c2;
  ops_arg args[14] = {arg0, arg1, arg2, arg3,  arg4,  arg5,  arg6,
                      arg7, arg8, arg9, arg10, arg11, arg12, arg13};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 14, range, 101))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(101, "PdV_kernel_predict");
    OPS_kernels[101].count++;
    ops_timers_core(&c1, &t1);
  }

  // compute localy allocated range for the sub-block

  int start[3];
  int end[3];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif // OPS_MPI

  int arg_idx[3];
  int arg_idx_base[3];
#ifdef OPS_MPI
  if (compute_ranges(args, 14, block, range, start, end, arg_idx) < 0)
    return;
#else // OPS_MPI
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif
  for (int n = 0; n < 3; n++) {
    arg_idx_base[n] = arg_idx[n];
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;
  int dat4 = args[4].dat->elem_size;
  int dat5 = args[5].dat->elem_size;
  int dat6 = args[6].dat->elem_size;
  int dat7 = args[7].dat->elem_size;
  int dat8 = args[8].dat->elem_size;
  int dat9 = args[9].dat->elem_size;
  int dat10 = args[10].dat->elem_size;
  int dat11 = args[11].dat->elem_size;
  int dat12 = args[12].dat->elem_size;
  int dat13 = args[13].dat->elem_size;

  // set up initial pointers
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * start[1] * args[0].stencil->stride[1];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * args[0].dat->size[1] * start[2] *
              args[0].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
#else
  double *p_a0 = (double *)((char *)args[0].data + base0);
#endif

  int base1 = args[1].dat->base_offset +
              (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
                  start[0] * args[1].stencil->stride[0];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * start[1] * args[1].stencil->stride[1];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * args[1].dat->size[1] * start[2] *
              args[1].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
#else
  double *p_a1 = (double *)((char *)args[1].data + base1);
#endif

  int base2 = args[2].dat->base_offset +
              (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
                  start[0] * args[2].stencil->stride[0];
  base2 = base2 +
          (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
              args[2].dat->size[0] * start[1] * args[2].stencil->stride[1];
  base2 = base2 +
          (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
              args[2].dat->size[0] * args[2].dat->size[1] * start[2] *
              args[2].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a2 = (double *)((char *)args[2].data_d + base2);
#else
  double *p_a2 = (double *)((char *)args[2].data + base2);
#endif

  int base3 = args[3].dat->base_offset +
              (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
                  start[0] * args[3].stencil->stride[0];
  base3 = base3 +
          (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
              args[3].dat->size[0] * start[1] * args[3].stencil->stride[1];
  base3 = base3 +
          (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
              args[3].dat->size[0] * args[3].dat->size[1] * start[2] *
              args[3].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a3 = (double *)((char *)args[3].data_d + base3);
#else
  double *p_a3 = (double *)((char *)args[3].data + base3);
#endif

  int base4 = args[4].dat->base_offset +
              (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
                  start[0] * args[4].stencil->stride[0];
  base4 = base4 +
          (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
              args[4].dat->size[0] * start[1] * args[4].stencil->stride[1];
  base4 = base4 +
          (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
              args[4].dat->size[0] * args[4].dat->size[1] * start[2] *
              args[4].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a4 = (double *)((char *)args[4].data_d + base4);
#else
  double *p_a4 = (double *)((char *)args[4].data + base4);
#endif

  int base5 = args[5].dat->base_offset +
              (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
                  start[0] * args[5].stencil->stride[0];
  base5 = base5 +
          (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
              args[5].dat->size[0] * start[1] * args[5].stencil->stride[1];
  base5 = base5 +
          (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
              args[5].dat->size[0] * args[5].dat->size[1] * start[2] *
              args[5].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a5 = (double *)((char *)args[5].data_d + base5);
#else
  double *p_a5 = (double *)((char *)args[5].data + base5);
#endif

  int base6 = args[6].dat->base_offset +
              (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
                  start[0] * args[6].stencil->stride[0];
  base6 = base6 +
          (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
              args[6].dat->size[0] * start[1] * args[6].stencil->stride[1];
  base6 = base6 +
          (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
              args[6].dat->size[0] * args[6].dat->size[1] * start[2] *
              args[6].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a6 = (double *)((char *)args[6].data_d + base6);
#else
  double *p_a6 = (double *)((char *)args[6].data + base6);
#endif

  int base7 = args[7].dat->base_offset +
              (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size) *
                  start[0] * args[7].stencil->stride[0];
  base7 = base7 +
          (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size) *
              args[7].dat->size[0] * start[1] * args[7].stencil->stride[1];
  base7 = base7 +
          (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size) *
              args[7].dat->size[0] * args[7].dat->size[1] * start[2] *
              args[7].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a7 = (double *)((char *)args[7].data_d + base7);
#else
  double *p_a7 = (double *)((char *)args[7].data + base7);
#endif

  int base8 = args[8].dat->base_offset +
              (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size) *
                  start[0] * args[8].stencil->stride[0];
  base8 = base8 +
          (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size) *
              args[8].dat->size[0] * start[1] * args[8].stencil->stride[1];
  base8 = base8 +
          (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size) *
              args[8].dat->size[0] * args[8].dat->size[1] * start[2] *
              args[8].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a8 = (double *)((char *)args[8].data_d + base8);
#else
  double *p_a8 = (double *)((char *)args[8].data + base8);
#endif

  int base9 = args[9].dat->base_offset +
              (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size) *
                  start[0] * args[9].stencil->stride[0];
  base9 = base9 +
          (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size) *
              args[9].dat->size[0] * start[1] * args[9].stencil->stride[1];
  base9 = base9 +
          (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size) *
              args[9].dat->size[0] * args[9].dat->size[1] * start[2] *
              args[9].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a9 = (double *)((char *)args[9].data_d + base9);
#else
  double *p_a9 = (double *)((char *)args[9].data + base9);
#endif

  int base10 = args[10].dat->base_offset +
               (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size) *
                   start[0] * args[10].stencil->stride[0];
  base10 = base10 +
           (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size) *
               args[10].dat->size[0] * start[1] * args[10].stencil->stride[1];
  base10 = base10 +
           (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size) *
               args[10].dat->size[0] * args[10].dat->size[1] * start[2] *
               args[10].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a10 = (double *)((char *)args[10].data_d + base10);
#else
  double *p_a10 = (double *)((char *)args[10].data + base10);
#endif

  int base11 = args[11].dat->base_offset +
               (OPS_soa ? args[11].dat->type_size : args[11].dat->elem_size) *
                   start[0] * args[11].stencil->stride[0];
  base11 = base11 +
           (OPS_soa ? args[11].dat->type_size : args[11].dat->elem_size) *
               args[11].dat->size[0] * start[1] * args[11].stencil->stride[1];
  base11 = base11 +
           (OPS_soa ? args[11].dat->type_size : args[11].dat->elem_size) *
               args[11].dat->size[0] * args[11].dat->size[1] * start[2] *
               args[11].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a11 = (double *)((char *)args[11].data_d + base11);
#else
  double *p_a11 = (double *)((char *)args[11].data + base11);
#endif

  int base12 = args[12].dat->base_offset +
               (OPS_soa ? args[12].dat->type_size : args[12].dat->elem_size) *
                   start[0] * args[12].stencil->stride[0];
  base12 = base12 +
           (OPS_soa ? args[12].dat->type_size : args[12].dat->elem_size) *
               args[12].dat->size[0] * start[1] * args[12].stencil->stride[1];
  base12 = base12 +
           (OPS_soa ? args[12].dat->type_size : args[12].dat->elem_size) *
               args[12].dat->size[0] * args[12].dat->size[1] * start[2] *
               args[12].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a12 = (double *)((char *)args[12].data_d + base12);
#else
  double *p_a12 = (double *)((char *)args[12].data + base12);
#endif

  int base13 = args[13].dat->base_offset +
               (OPS_soa ? args[13].dat->type_size : args[13].dat->elem_size) *
                   start[0] * args[13].stencil->stride[0];
  base13 = base13 +
           (OPS_soa ? args[13].dat->type_size : args[13].dat->elem_size) *
               args[13].dat->size[0] * start[1] * args[13].stencil->stride[1];
  base13 = base13 +
           (OPS_soa ? args[13].dat->type_size : args[13].dat->elem_size) *
               args[13].dat->size[0] * args[13].dat->size[1] * start[2] *
               args[13].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a13 = (double *)((char *)args[13].data_d + base13);
#else
  double *p_a13 = (double *)((char *)args[13].data + base13);
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);
  int z_size = MAX(0, end[2] - start[2]);

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0];
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0];
  ydim3 = args[3].dat->size[1];
  xdim4 = args[4].dat->size[0];
  ydim4 = args[4].dat->size[1];
  xdim5 = args[5].dat->size[0];
  ydim5 = args[5].dat->size[1];
  xdim6 = args[6].dat->size[0];
  ydim6 = args[6].dat->size[1];
  xdim7 = args[7].dat->size[0];
  ydim7 = args[7].dat->size[1];
  xdim8 = args[8].dat->size[0];
  ydim8 = args[8].dat->size[1];
  xdim9 = args[9].dat->size[0];
  ydim9 = args[9].dat->size[1];
  xdim10 = args[10].dat->size[0];
  ydim10 = args[10].dat->size[1];
  xdim11 = args[11].dat->size[0];
  ydim11 = args[11].dat->size[1];
  xdim12 = args[12].dat->size[0];
  ydim12 = args[12].dat->size[1];
  xdim13 = args[13].dat->size[0];
  ydim13 = args[13].dat->size[1];
  if (xdim0 != xdim0_PdV_kernel_predict_h ||
      ydim0 != ydim0_PdV_kernel_predict_h ||
      xdim1 != xdim1_PdV_kernel_predict_h ||
      ydim1 != ydim1_PdV_kernel_predict_h ||
      xdim2 != xdim2_PdV_kernel_predict_h ||
      ydim2 != ydim2_PdV_kernel_predict_h ||
      xdim3 != xdim3_PdV_kernel_predict_h ||
      ydim3 != ydim3_PdV_kernel_predict_h ||
      xdim4 != xdim4_PdV_kernel_predict_h ||
      ydim4 != ydim4_PdV_kernel_predict_h ||
      xdim5 != xdim5_PdV_kernel_predict_h ||
      ydim5 != ydim5_PdV_kernel_predict_h ||
      xdim6 != xdim6_PdV_kernel_predict_h ||
      ydim6 != ydim6_PdV_kernel_predict_h ||
      xdim7 != xdim7_PdV_kernel_predict_h ||
      ydim7 != ydim7_PdV_kernel_predict_h ||
      xdim8 != xdim8_PdV_kernel_predict_h ||
      ydim8 != ydim8_PdV_kernel_predict_h ||
      xdim9 != xdim9_PdV_kernel_predict_h ||
      ydim9 != ydim9_PdV_kernel_predict_h ||
      xdim10 != xdim10_PdV_kernel_predict_h ||
      ydim10 != ydim10_PdV_kernel_predict_h ||
      xdim11 != xdim11_PdV_kernel_predict_h ||
      ydim11 != ydim11_PdV_kernel_predict_h ||
      xdim12 != xdim12_PdV_kernel_predict_h ||
      ydim12 != ydim12_PdV_kernel_predict_h ||
      xdim13 != xdim13_PdV_kernel_predict_h ||
      ydim13 != ydim13_PdV_kernel_predict_h) {
    xdim0_PdV_kernel_predict = xdim0;
    xdim0_PdV_kernel_predict_h = xdim0;
    ydim0_PdV_kernel_predict = ydim0;
    ydim0_PdV_kernel_predict_h = ydim0;
    xdim1_PdV_kernel_predict = xdim1;
    xdim1_PdV_kernel_predict_h = xdim1;
    ydim1_PdV_kernel_predict = ydim1;
    ydim1_PdV_kernel_predict_h = ydim1;
    xdim2_PdV_kernel_predict = xdim2;
    xdim2_PdV_kernel_predict_h = xdim2;
    ydim2_PdV_kernel_predict = ydim2;
    ydim2_PdV_kernel_predict_h = ydim2;
    xdim3_PdV_kernel_predict = xdim3;
    xdim3_PdV_kernel_predict_h = xdim3;
    ydim3_PdV_kernel_predict = ydim3;
    ydim3_PdV_kernel_predict_h = ydim3;
    xdim4_PdV_kernel_predict = xdim4;
    xdim4_PdV_kernel_predict_h = xdim4;
    ydim4_PdV_kernel_predict = ydim4;
    ydim4_PdV_kernel_predict_h = ydim4;
    xdim5_PdV_kernel_predict = xdim5;
    xdim5_PdV_kernel_predict_h = xdim5;
    ydim5_PdV_kernel_predict = ydim5;
    ydim5_PdV_kernel_predict_h = ydim5;
    xdim6_PdV_kernel_predict = xdim6;
    xdim6_PdV_kernel_predict_h = xdim6;
    ydim6_PdV_kernel_predict = ydim6;
    ydim6_PdV_kernel_predict_h = ydim6;
    xdim7_PdV_kernel_predict = xdim7;
    xdim7_PdV_kernel_predict_h = xdim7;
    ydim7_PdV_kernel_predict = ydim7;
    ydim7_PdV_kernel_predict_h = ydim7;
    xdim8_PdV_kernel_predict = xdim8;
    xdim8_PdV_kernel_predict_h = xdim8;
    ydim8_PdV_kernel_predict = ydim8;
    ydim8_PdV_kernel_predict_h = ydim8;
    xdim9_PdV_kernel_predict = xdim9;
    xdim9_PdV_kernel_predict_h = xdim9;
    ydim9_PdV_kernel_predict = ydim9;
    ydim9_PdV_kernel_predict_h = ydim9;
    xdim10_PdV_kernel_predict = xdim10;
    xdim10_PdV_kernel_predict_h = xdim10;
    ydim10_PdV_kernel_predict = ydim10;
    ydim10_PdV_kernel_predict_h = ydim10;
    xdim11_PdV_kernel_predict = xdim11;
    xdim11_PdV_kernel_predict_h = xdim11;
    ydim11_PdV_kernel_predict = ydim11;
    ydim11_PdV_kernel_predict_h = ydim11;
    xdim12_PdV_kernel_predict = xdim12;
    xdim12_PdV_kernel_predict_h = xdim12;
    ydim12_PdV_kernel_predict = ydim12;
    ydim12_PdV_kernel_predict_h = ydim12;
    xdim13_PdV_kernel_predict = xdim13;
    xdim13_PdV_kernel_predict_h = xdim13;
    ydim13_PdV_kernel_predict = ydim13;
    ydim13_PdV_kernel_predict_h = ydim13;
  }

// Halo Exchanges

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 14);
#else
  ops_H_D_exchanges_host(args, 14);
#endif
  ops_halo_exchanges(args, 14, range);

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 14);
#else
  ops_H_D_exchanges_host(args, 14);
#endif
  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[101].mpi_time += t2 - t1;
  }

  PdV_kernel_predict_c_wrapper(p_a0, p_a1, p_a2, p_a3, p_a4, p_a5, p_a6, p_a7,
                               p_a8, p_a9, p_a10, p_a11, p_a12, p_a13, x_size,
                               y_size, z_size);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[101].time += t1 - t2;
  }
#ifdef OPS_GPU
  ops_set_dirtybit_device(args, 14);
#else
  ops_set_dirtybit_host(args, 14);
#endif
  ops_set_halo_dirtybit3(&args[4], range);
  ops_set_halo_dirtybit3(&args[8], range);
  ops_set_halo_dirtybit3(&args[11], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[101].mpi_time += t2 - t1;
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg1);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg2);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg4);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg5);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg6);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg7);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg8);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg9);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg10);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg11);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg12);
    OPS_kernels[101].transfer += ops_compute_transfer(dim, start, end, &arg13);
  }
}
// host stub function
void ops_par_loop_advec_mom_kernel1_x_nonvector(char const *name,
                                                ops_block block, int dim,
                                                int *range, ops_arg arg0,
                                                ops_arg arg1, ops_arg arg2,
                                                ops_arg arg3, ops_arg arg4) {

  // Timing
  double t1, t2, c1, c2;
  ops_arg args[5] = {arg0, arg1, arg2, arg3, arg4};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 5, range, 75))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(75, "advec_mom_kernel1_x_nonvector");
    OPS_kernels[75].count++;
    ops_timers_core(&c1, &t1);
  }

  // compute localy allocated range for the sub-block

  int start[2];
  int end[2];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif // OPS_MPI

  int arg_idx[2];
  int arg_idx_base[2];
#ifdef OPS_MPI
  if (compute_ranges(args, 5, block, range, start, end, arg_idx) < 0)
    return;
#else // OPS_MPI
  for (int n = 0; n < 2; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif
  for (int n = 0; n < 2; n++) {
    arg_idx_base[n] = arg_idx[n];
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;
  int dat4 = args[4].dat->elem_size;

  // set up initial pointers
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * start[1] * args[0].stencil->stride[1];
#ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
#else
  double *p_a0 = (double *)((char *)args[0].data + base0);
#endif

  int base1 = args[1].dat->base_offset +
              (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
                  start[0] * args[1].stencil->stride[0];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * start[1] * args[1].stencil->stride[1];
#ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
#else
  double *p_a1 = (double *)((char *)args[1].data + base1);
#endif

  int base2 = args[2].dat->base_offset +
              (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
                  start[0] * args[2].stencil->stride[0];
  base2 = base2 +
          (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
              args[2].dat->size[0] * start[1] * args[2].stencil->stride[1];
#ifdef OPS_GPU
  double *p_a2 = (double *)((char *)args[2].data_d + base2);
#else
  double *p_a2 = (double *)((char *)args[2].data + base2);
#endif

  int base3 = args[3].dat->base_offset +
              (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
                  start[0] * args[3].stencil->stride[0];
  base3 = base3 +
          (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
              args[3].dat->size[0] * start[1] * args[3].stencil->stride[1];
#ifdef OPS_GPU
  double *p_a3 = (double *)((char *)args[3].data_d + base3);
#else
  double *p_a3 = (double *)((char *)args[3].data + base3);
#endif

  int base4 = args[4].dat->base_offset +
              (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
                  start[0] * args[4].stencil->stride[0];
  base4 = base4 +
          (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
              args[4].dat->size[0] * start[1] * args[4].stencil->stride[1];
#ifdef OPS_GPU
  double *p_a4 = (double *)((char *)args[4].data_d + base4);
#else
  double *p_a4 = (double *)((char *)args[4].data + base4);
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  xdim1 = args[1].dat->size[0];
  xdim2 = args[2].dat->size[0];
  xdim3 = args[3].dat->size[0];
  xdim4 = args[4].dat->size[0];
  if (xdim0 != xdim0_advec_mom_kernel1_x_nonvector_h ||
      xdim1 != xdim1_advec_mom_kernel1_x_nonvector_h ||
      xdim2 != xdim2_advec_mom_kernel1_x_nonvector_h ||
      xdim3 != xdim3_advec_mom_kernel1_x_nonvector_h ||
      xdim4 != xdim4_advec_mom_kernel1_x_nonvector_h) {
    xdim0_advec_mom_kernel1_x_nonvector = xdim0;
    xdim0_advec_mom_kernel1_x_nonvector_h = xdim0;
    xdim1_advec_mom_kernel1_x_nonvector = xdim1;
    xdim1_advec_mom_kernel1_x_nonvector_h = xdim1;
    xdim2_advec_mom_kernel1_x_nonvector = xdim2;
    xdim2_advec_mom_kernel1_x_nonvector_h = xdim2;
    xdim3_advec_mom_kernel1_x_nonvector = xdim3;
    xdim3_advec_mom_kernel1_x_nonvector_h = xdim3;
    xdim4_advec_mom_kernel1_x_nonvector = xdim4;
    xdim4_advec_mom_kernel1_x_nonvector_h = xdim4;
  }

// Halo Exchanges

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 5);
#else
  ops_H_D_exchanges_host(args, 5);
#endif
  ops_halo_exchanges(args, 5, range);

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 5);
#else
  ops_H_D_exchanges_host(args, 5);
#endif
  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[75].mpi_time += t2 - t1;
  }

  advec_mom_kernel1_x_nonvector_c_wrapper(p_a0, p_a1, p_a2, p_a3, p_a4, x_size,
                                          y_size);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[75].time += t1 - t2;
  }
#ifdef OPS_GPU
  ops_set_dirtybit_device(args, 5);
#else
  ops_set_dirtybit_host(args, 5);
#endif
  ops_set_halo_dirtybit3(&args[2], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[75].mpi_time += t2 - t1;
    OPS_kernels[75].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[75].transfer += ops_compute_transfer(dim, start, end, &arg1);
    OPS_kernels[75].transfer += ops_compute_transfer(dim, start, end, &arg2);
    OPS_kernels[75].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[75].transfer += ops_compute_transfer(dim, start, end, &arg4);
  }
}
// host stub function
void ops_par_loop_update_halo_kernel5_plus_4_left(char const *name,
                                                  ops_block block, int dim,
                                                  int *range, ops_arg arg0,
                                                  ops_arg arg1, ops_arg arg2) {

  // Timing
  double t1, t2, c1, c2;

  char *p_a[3];
  int offs[3][3];
  ops_arg args[3] = {arg0, arg1, arg2};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 3, range, 88))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(88, "update_halo_kernel5_plus_4_left");
    OPS_kernels[88].count++;
    ops_timers_core(&c2, &t2);
  }

  // compute locally allocated range for the sub-block
  int start[3];
  int end[3];

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif
#ifdef OPS_DEBUG
  ops_register_args(args, "update_halo_kernel5_plus_4_left");
#endif

  int arg_idx[3];
  int arg_idx_base[3];
#ifdef OPS_MPI
  if (compute_ranges(args, 3, block, range, start, end, arg_idx) < 0)
    return;
#else  // OPS_MPI
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif // OPS_MPI
  for (int n = 0; n < 3; n++) {
    arg_idx_base[n] = arg_idx[n];
  }
  offs[0][0] = args[0].stencil->stride[0] * 1; // unit step in x dimension
  offs[0][1] =
      off3D(1, &start[0], &end[0], args[0].dat->size, args[0].stencil->stride) -
      offs[0][0];
  offs[0][2] =
      off3D(2, &start[0], &end[0], args[0].dat->size, args[0].stencil->stride) -
      offs[0][1] - offs[0][0];

  offs[1][0] = args[1].stencil->stride[0] * 1; // unit step in x dimension
  offs[1][1] =
      off3D(1, &start[0], &end[0], args[1].dat->size, args[1].stencil->stride) -
      offs[1][0];
  offs[1][2] =
      off3D(2, &start[0], &end[0], args[1].dat->size, args[1].stencil->stride) -
      offs[1][1] - offs[1][0];

  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int off0_2 = offs[0][2];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int off1_0 = offs[1][0];
  int off1_1 = offs[1][1];
  int off1_2 = offs[1][2];
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);

  // set up initial pointers and exchange halos if necessary
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * start[1] * args[0].stencil->stride[1];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * args[0].dat->size[1] * start[2] *
              args[0].stencil->stride[2];
  p_a[0] = (char *)args[0].data + base0;

  int base1 = args[1].dat->base_offset +
              (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
                  start[0] * args[1].stencil->stride[0];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * start[1] * args[1].stencil->stride[1];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * args[1].dat->size[1] * start[2] *
              args[1].stencil->stride[2];
  p_a[1] = (char *)args[1].data + base1;

  p_a[2] = args[2].data;

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];

  // Halo Exchanges
  ops_H_D_exchanges_host(args, 3);
  ops_halo_exchanges(args, 3, range);
  ops_H_D_exchanges_host(args, 3);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[88].mpi_time += t1 - t2;
  }

  int n_x;
  for (int n_z = start[2]; n_z < end[2]; n_z++) {
    for (int n_y = start[1]; n_y < end[1]; n_y++) {
#pragma novector
      for (n_x = start[0];
           n_x < start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
           n_x += SIMD_VEC) {
// call kernel function, passing in pointers to data -vectorised
#pragma simd
        for (int i = 0; i < SIMD_VEC; i++) {
          update_halo_kernel5_plus_4_left((double *)p_a[0] + i * 1 * 1,
                                          (double *)p_a[1] + i * 1 * 1,
                                          (int *)p_a[2]);
        }

        // shift pointers to data x direction
        p_a[0] = p_a[0] + (dat0 * off0_0) * SIMD_VEC;
        p_a[1] = p_a[1] + (dat1 * off1_0) * SIMD_VEC;
      }

      for (int n_x = start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
           n_x < end[0]; n_x++) {
        // call kernel function, passing in pointers to data - remainder
        update_halo_kernel5_plus_4_left((double *)p_a[0], (double *)p_a[1],
                                        (int *)p_a[2]);

        // shift pointers to data x direction
        p_a[0] = p_a[0] + (dat0 * off0_0);
        p_a[1] = p_a[1] + (dat1 * off1_0);
      }

      // shift pointers to data y direction
      p_a[0] = p_a[0] + (dat0 * off0_1);
      p_a[1] = p_a[1] + (dat1 * off1_1);
    }
    // shift pointers to data z direction
    p_a[0] = p_a[0] + (dat0 * off0_2);
    p_a[1] = p_a[1] + (dat1 * off1_2);
  }
  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[88].time += t2 - t1;
  }
  ops_set_dirtybit_host(args, 3);
  ops_set_halo_dirtybit3(&args[0], range);
  ops_set_halo_dirtybit3(&args[1], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c1, &t1);
    OPS_kernels[88].mpi_time += t1 - t2;
    OPS_kernels[88].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[88].transfer += ops_compute_transfer(dim, start, end, &arg1);
  }
}
// host stub function
void ops_par_loop_update_halo_kernel1_b2(char const *name, ops_block block,
                                         int dim, int *range, ops_arg arg0,
                                         ops_arg arg1, ops_arg arg2,
                                         ops_arg arg3, ops_arg arg4,
                                         ops_arg arg5, ops_arg arg6,
                                         ops_arg arg7) {

  // Timing
  double t1, t2, c1, c2;
  ops_arg args[8] = {arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 8, range, 12))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(12, "update_halo_kernel1_b2");
    OPS_kernels[12].count++;
    ops_timers_core(&c1, &t1);
  }

  // compute localy allocated range for the sub-block

  int start[3];
  int end[3];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif // OPS_MPI

  int arg_idx[3];
  int arg_idx_base[3];
#ifdef OPS_MPI
  if (compute_ranges(args, 8, block, range, start, end, arg_idx) < 0)
    return;
#else // OPS_MPI
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif
  for (int n = 0; n < 3; n++) {
    arg_idx_base[n] = arg_idx[n];
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;
  int dat4 = args[4].dat->elem_size;
  int dat5 = args[5].dat->elem_size;
  int dat6 = args[6].dat->elem_size;

  int *arg7h = (int *)arg7.data;
// Upload large globals
#ifdef OPS_GPU
  int consts_bytes = 0;
  consts_bytes += ROUND_UP(NUM_FIELDS * sizeof(int));
  reallocConstArrays(consts_bytes);
  consts_bytes = 0;
  args[7].data = OPS_consts_h + consts_bytes;
  args[7].data_d = OPS_consts_d + consts_bytes;
  for (int d = 0; d < NUM_FIELDS; d++)
    ((int *)args[7].data)[d] = arg7h[d];
  consts_bytes += ROUND_UP(NUM_FIELDS * sizeof(int));
  mvConstArraysToDevice(consts_bytes);
#endif // OPS_GPU

  // set up initial pointers
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * start[1] * args[0].stencil->stride[1];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * args[0].dat->size[1] * start[2] *
              args[0].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
#else
  double *p_a0 = (double *)((char *)args[0].data + base0);
#endif

  int base1 = args[1].dat->base_offset +
              (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
                  start[0] * args[1].stencil->stride[0];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * start[1] * args[1].stencil->stride[1];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * args[1].dat->size[1] * start[2] *
              args[1].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
#else
  double *p_a1 = (double *)((char *)args[1].data + base1);
#endif

  int base2 = args[2].dat->base_offset +
              (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
                  start[0] * args[2].stencil->stride[0];
  base2 = base2 +
          (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
              args[2].dat->size[0] * start[1] * args[2].stencil->stride[1];
  base2 = base2 +
          (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
              args[2].dat->size[0] * args[2].dat->size[1] * start[2] *
              args[2].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a2 = (double *)((char *)args[2].data_d + base2);
#else
  double *p_a2 = (double *)((char *)args[2].data + base2);
#endif

  int base3 = args[3].dat->base_offset +
              (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
                  start[0] * args[3].stencil->stride[0];
  base3 = base3 +
          (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
              args[3].dat->size[0] * start[1] * args[3].stencil->stride[1];
  base3 = base3 +
          (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
              args[3].dat->size[0] * args[3].dat->size[1] * start[2] *
              args[3].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a3 = (double *)((char *)args[3].data_d + base3);
#else
  double *p_a3 = (double *)((char *)args[3].data + base3);
#endif

  int base4 = args[4].dat->base_offset +
              (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
                  start[0] * args[4].stencil->stride[0];
  base4 = base4 +
          (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
              args[4].dat->size[0] * start[1] * args[4].stencil->stride[1];
  base4 = base4 +
          (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
              args[4].dat->size[0] * args[4].dat->size[1] * start[2] *
              args[4].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a4 = (double *)((char *)args[4].data_d + base4);
#else
  double *p_a4 = (double *)((char *)args[4].data + base4);
#endif

  int base5 = args[5].dat->base_offset +
              (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
                  start[0] * args[5].stencil->stride[0];
  base5 = base5 +
          (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
              args[5].dat->size[0] * start[1] * args[5].stencil->stride[1];
  base5 = base5 +
          (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
              args[5].dat->size[0] * args[5].dat->size[1] * start[2] *
              args[5].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a5 = (double *)((char *)args[5].data_d + base5);
#else
  double *p_a5 = (double *)((char *)args[5].data + base5);
#endif

  int base6 = args[6].dat->base_offset +
              (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
                  start[0] * args[6].stencil->stride[0];
  base6 = base6 +
          (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
              args[6].dat->size[0] * start[1] * args[6].stencil->stride[1];
  base6 = base6 +
          (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
              args[6].dat->size[0] * args[6].dat->size[1] * start[2] *
              args[6].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a6 = (double *)((char *)args[6].data_d + base6);
#else
  double *p_a6 = (double *)((char *)args[6].data + base6);
#endif

#ifdef OPS_GPU
  int *p_a7 = (int *)args[7].data_d;
#else
  int *p_a7 = arg7h;
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);
  int z_size = MAX(0, end[2] - start[2]);

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0];
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0];
  ydim3 = args[3].dat->size[1];
  xdim4 = args[4].dat->size[0];
  ydim4 = args[4].dat->size[1];
  xdim5 = args[5].dat->size[0];
  ydim5 = args[5].dat->size[1];
  xdim6 = args[6].dat->size[0];
  ydim6 = args[6].dat->size[1];
  if (xdim0 != xdim0_update_halo_kernel1_b2_h ||
      ydim0 != ydim0_update_halo_kernel1_b2_h ||
      xdim1 != xdim1_update_halo_kernel1_b2_h ||
      ydim1 != ydim1_update_halo_kernel1_b2_h ||
      xdim2 != xdim2_update_halo_kernel1_b2_h ||
      ydim2 != ydim2_update_halo_kernel1_b2_h ||
      xdim3 != xdim3_update_halo_kernel1_b2_h ||
      ydim3 != ydim3_update_halo_kernel1_b2_h ||
      xdim4 != xdim4_update_halo_kernel1_b2_h ||
      ydim4 != ydim4_update_halo_kernel1_b2_h ||
      xdim5 != xdim5_update_halo_kernel1_b2_h ||
      ydim5 != ydim5_update_halo_kernel1_b2_h ||
      xdim6 != xdim6_update_halo_kernel1_b2_h ||
      ydim6 != ydim6_update_halo_kernel1_b2_h) {
    xdim0_update_halo_kernel1_b2 = xdim0;
    xdim0_update_halo_kernel1_b2_h = xdim0;
    ydim0_update_halo_kernel1_b2 = ydim0;
    ydim0_update_halo_kernel1_b2_h = ydim0;
    xdim1_update_halo_kernel1_b2 = xdim1;
    xdim1_update_halo_kernel1_b2_h = xdim1;
    ydim1_update_halo_kernel1_b2 = ydim1;
    ydim1_update_halo_kernel1_b2_h = ydim1;
    xdim2_update_halo_kernel1_b2 = xdim2;
    xdim2_update_halo_kernel1_b2_h = xdim2;
    ydim2_update_halo_kernel1_b2 = ydim2;
    ydim2_update_halo_kernel1_b2_h = ydim2;
    xdim3_update_halo_kernel1_b2 = xdim3;
    xdim3_update_halo_kernel1_b2_h = xdim3;
    ydim3_update_halo_kernel1_b2 = ydim3;
    ydim3_update_halo_kernel1_b2_h = ydim3;
    xdim4_update_halo_kernel1_b2 = xdim4;
    xdim4_update_halo_kernel1_b2_h = xdim4;
    ydim4_update_halo_kernel1_b2 = ydim4;
    ydim4_update_halo_kernel1_b2_h = ydim4;
    xdim5_update_halo_kernel1_b2 = xdim5;
    xdim5_update_halo_kernel1_b2_h = xdim5;
    ydim5_update_halo_kernel1_b2 = ydim5;
    ydim5_update_halo_kernel1_b2_h = ydim5;
    xdim6_update_halo_kernel1_b2 = xdim6;
    xdim6_update_halo_kernel1_b2_h = xdim6;
    ydim6_update_halo_kernel1_b2 = ydim6;
    ydim6_update_halo_kernel1_b2_h = ydim6;
  }

// Halo Exchanges

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 8);
#else
  ops_H_D_exchanges_host(args, 8);
#endif
  ops_halo_exchanges(args, 8, range);

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 8);
#else
  ops_H_D_exchanges_host(args, 8);
#endif
  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[12].mpi_time += t2 - t1;
  }

  update_halo_kernel1_b2_c_wrapper(p_a0, p_a1, p_a2, p_a3, p_a4, p_a5, p_a6,
                                   p_a7, x_size, y_size, z_size);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[12].time += t1 - t2;
  }
#ifdef OPS_GPU
  ops_set_dirtybit_device(args, 8);
#else
  ops_set_dirtybit_host(args, 8);
#endif
  ops_set_halo_dirtybit3(&args[0], range);
  ops_set_halo_dirtybit3(&args[1], range);
  ops_set_halo_dirtybit3(&args[2], range);
  ops_set_halo_dirtybit3(&args[3], range);
  ops_set_halo_dirtybit3(&args[4], range);
  ops_set_halo_dirtybit3(&args[5], range);
  ops_set_halo_dirtybit3(&args[6], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[12].mpi_time += t2 - t1;
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg1);
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg2);
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg4);
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg5);
    OPS_kernels[12].transfer += ops_compute_transfer(dim, start, end, &arg6);
  }
}
// host stub function
void ops_par_loop_update_halo_kernel3_plus_2_a(char const *name,
                                               ops_block block, int dim,
                                               int *range, ops_arg arg0,
                                               ops_arg arg1, ops_arg arg2) {

  // Timing
  double t1, t2, c1, c2;

  ops_arg args[3] = {arg0, arg1, arg2};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 3, range, 60))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(60, "update_halo_kernel3_plus_2_a");
    OPS_kernels[60].count++;
    ops_timers_core(&c1, &t1);
  }

  // compute locally allocated range for the sub-block
  int start[3];
  int end[3];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned)
    return;
  for (int n = 0; n < 3; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
  }
#else
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);
  int z_size = MAX(0, end[2] - start[2]);

  int xdim0 = args[0].dat->size[0];
  int ydim0 = args[0].dat->size[1];
  int xdim1 = args[1].dat->size[0];
  int ydim1 = args[1].dat->size[1];

  // build opencl kernel if not already built

  buildOpenCLKernels_update_halo_kernel3_plus_2_a(xdim0, ydim0, xdim1, ydim1);

  // set up OpenCL thread blocks
  size_t globalWorkSize[3] = {
      ((x_size - 1) / OPS_block_size_x + 1) * OPS_block_size_x,
      ((y_size - 1) / OPS_block_size_y + 1) * OPS_block_size_y,
      ((z_size - 1) / OPS_block_size_z + 1) * OPS_block_size_z};
  size_t localWorkSize[3] = {OPS_block_size_x, OPS_block_size_y,
                             OPS_block_size_z};

  int *arg2h = (int *)arg2.data;

  int consts_bytes = 0;

  consts_bytes += ROUND_UP(NUM_FIELDS * sizeof(int));

  reallocConstArrays(consts_bytes);

  consts_bytes = 0;
  arg2.data = OPS_consts_h + consts_bytes;
  arg2.data_d = OPS_consts_d + consts_bytes;
  for (int d = 0; d < NUM_FIELDS; d++)
    ((int *)arg2.data)[d] = arg2h[d];
  consts_bytes += ROUND_UP(NUM_FIELDS * sizeof(int));
  mvConstArraysToDevice(consts_bytes);

  // set up initial pointers
  int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[0].dat->d_m[d];
#endif
  int base0 = 1 * 1 * (start[0] * args[0].stencil->stride[0] -
                       args[0].dat->base[0] - d_m[0]);
  base0 = base0 +
          args[0].dat->size[0] * 1 * (start[1] * args[0].stencil->stride[1] -
                                      args[0].dat->base[1] - d_m[1]);
  base0 = base0 +
          args[0].dat->size[0] * 1 * args[0].dat->size[1] * 1 *
              (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] -
               d_m[2]);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[1].dat->d_m[d];
#endif
  int base1 = 1 * 1 * (start[0] * args[1].stencil->stride[0] -
                       args[1].dat->base[0] - d_m[0]);
  base1 = base1 +
          args[1].dat->size[0] * 1 * (start[1] * args[1].stencil->stride[1] -
                                      args[1].dat->base[1] - d_m[1]);
  base1 = base1 +
          args[1].dat->size[0] * 1 * args[1].dat->size[1] * 1 *
              (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] -
               d_m[2]);

  ops_H_D_exchanges_device(args, 3);
  ops_halo_exchanges(args, 3, range);
  ops_H_D_exchanges_device(args, 3);

  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[60].mpi_time += t2 - t1;
  }

  if (globalWorkSize[0] > 0 && globalWorkSize[1] > 0 && globalWorkSize[2] > 0) {

    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 0, sizeof(cl_mem),
                              (void *)&arg0.data_d));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 1, sizeof(cl_mem),
                              (void *)&arg1.data_d));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 2, sizeof(cl_mem),
                              (void *)&arg2.data_d));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 3, sizeof(cl_int),
                              (void *)&base0));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 4, sizeof(cl_int),
                              (void *)&base1));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 5, sizeof(cl_int),
                              (void *)&x_size));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 6, sizeof(cl_int),
                              (void *)&y_size));
    clSafeCall(clSetKernelArg(OPS_opencl_core.kernel[60], 7, sizeof(cl_int),
                              (void *)&z_size));

    // call/enque opencl kernel wrapper function
    clSafeCall(clEnqueueNDRangeKernel(
        OPS_opencl_core.command_queue, OPS_opencl_core.kernel[60], 3, NULL,
        globalWorkSize, localWorkSize, 0, NULL, NULL));
  }
  if (OPS_diags > 1) {
    clSafeCall(clFinish(OPS_opencl_core.command_queue));
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[60].time += t1 - t2;
  }

  ops_set_dirtybit_device(args, 3);
  ops_set_halo_dirtybit3(&args[0], range);
  ops_set_halo_dirtybit3(&args[1], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[60].mpi_time += t2 - t1;
    OPS_kernels[60].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[60].transfer += ops_compute_transfer(dim, start, end, &arg1);
  }
}
// host stub function
void ops_par_loop_update_halo_kernel1_l2(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3,
 ops_arg arg4, ops_arg arg5, ops_arg arg6, ops_arg arg7) {
  ops_arg args[8] = { arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7};


  ops_timing_realloc(45,"update_halo_kernel1_l2");
  OPS_kernels[45].count++;

  //compute locally allocated range for the sub-block
  int start[3];
  int end[3];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);
  int z_size = MAX(0,end[2]-start[2]);


  int xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  int ydim0 = args[0].dat->size[1];
  int xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  int ydim1 = args[1].dat->size[1];
  int xdim2 = args[2].dat->size[0]*args[2].dat->dim;
  int ydim2 = args[2].dat->size[1];
  int xdim3 = args[3].dat->size[0]*args[3].dat->dim;
  int ydim3 = args[3].dat->size[1];
  int xdim4 = args[4].dat->size[0]*args[4].dat->dim;
  int ydim4 = args[4].dat->size[1];
  int xdim5 = args[5].dat->size[0]*args[5].dat->dim;
  int ydim5 = args[5].dat->size[1];
  int xdim6 = args[6].dat->size[0]*args[6].dat->dim;
  int ydim6 = args[6].dat->size[1];

  //build opencl kernel if not already built

  buildOpenCLKernels_update_halo_kernel1_l2(
  xdim0,ydim0,xdim1,ydim1,xdim2,ydim2,xdim3,ydim3,xdim4,ydim4,xdim5,ydim5,xdim6,ydim6);

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  //set up OpenCL thread blocks
  size_t globalWorkSize[3] = {((x_size-1)/OPS_block_size_x+ 1)*OPS_block_size_x, ((y_size-1)/OPS_block_size_y + 1)*OPS_block_size_y, MAX(1,end[2]-start[2])};
  size_t localWorkSize[3] =  {OPS_block_size_x,OPS_block_size_y,1};


  int *arg7h = (int *)arg7.data;

  int consts_bytes = 0;

  consts_bytes += ROUND_UP(NUM_FIELDS*sizeof(int));

  reallocConstArrays(consts_bytes);

  consts_bytes = 0;
  arg7.data = OPS_consts_h + consts_bytes;
  arg7.data_d = OPS_consts_d + consts_bytes;
  for (int d=0; d<NUM_FIELDS; d++) ((int *)arg7.data)[d] = arg7h[d];
  consts_bytes += ROUND_UP(NUM_FIELDS*sizeof(int));
  mvConstArraysToDevice(consts_bytes);
  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;
  int dat4 = args[4].dat->elem_size;
  int dat5 = args[5].dat->elem_size;
  int dat6 = args[6].dat->elem_size;

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = 1 * 
  (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0 + args[0].dat->size[0] *
  (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0 + args[0].dat->size[0] *  args[0].dat->size[1] *
  (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = 1 * 
  (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1 + args[1].dat->size[0] *
  (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1 + args[1].dat->size[0] *  args[1].dat->size[1] *
  (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d];
  #endif //OPS_MPI
  int base2 = 1 * 
  (start[0] * args[2].stencil->stride[0] - args[2].dat->base[0] - d_m[0]);
  base2 = base2 + args[2].dat->size[0] *
  (start[1] * args[2].stencil->stride[1] - args[2].dat->base[1] - d_m[1]);
  base2 = base2 + args[2].dat->size[0] *  args[2].dat->size[1] *
  (start[2] * args[2].stencil->stride[2] - args[2].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d];
  #endif //OPS_MPI
  int base3 = 1 * 
  (start[0] * args[3].stencil->stride[0] - args[3].dat->base[0] - d_m[0]);
  base3 = base3 + args[3].dat->size[0] *
  (start[1] * args[3].stencil->stride[1] - args[3].dat->base[1] - d_m[1]);
  base3 = base3 + args[3].dat->size[0] *  args[3].dat->size[1] *
  (start[2] * args[3].stencil->stride[2] - args[3].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d];
  #endif //OPS_MPI
  int base4 = 1 * 
  (start[0] * args[4].stencil->stride[0] - args[4].dat->base[0] - d_m[0]);
  base4 = base4 + args[4].dat->size[0] *
  (start[1] * args[4].stencil->stride[1] - args[4].dat->base[1] - d_m[1]);
  base4 = base4 + args[4].dat->size[0] *  args[4].dat->size[1] *
  (start[2] * args[4].stencil->stride[2] - args[4].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d];
  #endif //OPS_MPI
  int base5 = 1 * 
  (start[0] * args[5].stencil->stride[0] - args[5].dat->base[0] - d_m[0]);
  base5 = base5 + args[5].dat->size[0] *
  (start[1] * args[5].stencil->stride[1] - args[5].dat->base[1] - d_m[1]);
  base5 = base5 + args[5].dat->size[0] *  args[5].dat->size[1] *
  (start[2] * args[5].stencil->stride[2] - args[5].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d] + OPS_sub_dat_list[args[6].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d];
  #endif //OPS_MPI
  int base6 = 1 * 
  (start[0] * args[6].stencil->stride[0] - args[6].dat->base[0] - d_m[0]);
  base6 = base6 + args[6].dat->size[0] *
  (start[1] * args[6].stencil->stride[1] - args[6].dat->base[1] - d_m[1]);
  base6 = base6 + args[6].dat->size[0] *  args[6].dat->size[1] *
  (start[2] * args[6].stencil->stride[2] - args[6].dat->base[2] - d_m[2]);


  ops_H_D_exchanges_device(args, 8);
  ops_halo_exchanges(args,8,range);
  ops_H_D_exchanges_device(args, 8);

  ops_timers_core(&c1,&t1);
  OPS_kernels[45].mpi_time += t1-t2;


  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 0, sizeof(cl_mem), (void*) &arg0.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 1, sizeof(cl_mem), (void*) &arg1.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 2, sizeof(cl_mem), (void*) &arg2.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 3, sizeof(cl_mem), (void*) &arg3.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 4, sizeof(cl_mem), (void*) &arg4.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 5, sizeof(cl_mem), (void*) &arg5.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 6, sizeof(cl_mem), (void*) &arg6.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 7, sizeof(cl_mem), (void*) &arg7.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 8, sizeof(cl_int), (void*) &base0 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 9, sizeof(cl_int), (void*) &base1 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 10, sizeof(cl_int), (void*) &base2 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 11, sizeof(cl_int), (void*) &base3 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 12, sizeof(cl_int), (void*) &base4 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 13, sizeof(cl_int), (void*) &base5 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 14, sizeof(cl_int), (void*) &base6 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 15, sizeof(cl_int), (void*) &x_size ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 16, sizeof(cl_int), (void*) &y_size ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[45], 17, sizeof(cl_int), (void*) &z_size ));

  //call/enque opencl kernel wrapper function
  clSafeCall( clEnqueueNDRangeKernel(OPS_opencl_core.command_queue, OPS_opencl_core.kernel[45], 3, NULL, globalWorkSize, localWorkSize, 0, NULL, NULL) );
  if (OPS_diags>1) {
    clSafeCall( clFinish(OPS_opencl_core.command_queue) );
  }

  ops_set_dirtybit_device(args, 8);
  ops_set_halo_dirtybit3(&args[0],range);
  ops_set_halo_dirtybit3(&args[1],range);
  ops_set_halo_dirtybit3(&args[2],range);
  ops_set_halo_dirtybit3(&args[3],range);
  ops_set_halo_dirtybit3(&args[4],range);
  ops_set_halo_dirtybit3(&args[5],range);
  ops_set_halo_dirtybit3(&args[6],range);

  //Update kernel record
  ops_timers_core(&c2,&t2);
  OPS_kernels[45].time += t2-t1;
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg2);
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg3);
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg4);
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg5);
  OPS_kernels[45].transfer += ops_compute_transfer(dim, range, &arg6);
}
// host stub function
void ops_par_loop_preproc_kernel(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3,
 ops_arg arg4, ops_arg arg5, ops_arg arg6, ops_arg arg7,
 ops_arg arg8, ops_arg arg9, ops_arg arg10, ops_arg arg11) {

  //Timing
  double t1,t2,c1,c2;

  char *p_a[12];
  int  offs[12][3];
  ops_arg args[12] = { arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11};



  #ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args,12,range,1)) return;
  #endif

  if (OPS_diags > 1) {
    ops_timing_realloc(1,"preproc_kernel");
    OPS_kernels[1].count++;
    ops_timers_core(&c2,&t2);
  }

  //compute locally allocated range for the sub-block
  int start[3];
  int end[3];

  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  #endif
  #ifdef OPS_DEBUG
  ops_register_args(args, "preproc_kernel");
  #endif

  int arg_idx[3];
  int arg_idx_base[3];
#ifdef OPS_MPI
  if (compute_ranges(args, 12, block, range, start, end, arg_idx) < 0)
    return;
#else  // OPS_MPI
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif // OPS_MPI
  for (int n = 0; n < 3; n++) {
    arg_idx_base[n] = arg_idx[n];
  }
  offs[0][0] = args[0].stencil->stride[0]*1;  //unit step in x dimension
  offs[0][1] = off3D(1, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][0];
  offs[0][2] = off3D(2, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][1] - offs[0][0];

  offs[1][0] = args[1].stencil->stride[0]*1;  //unit step in x dimension
  offs[1][1] = off3D(1, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][0];
  offs[1][2] = off3D(2, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][1] - offs[1][0];

  offs[2][0] = args[2].stencil->stride[0]*1;  //unit step in x dimension
  offs[2][1] = off3D(1, &start[0],
      &end[0],args[2].dat->size, args[2].stencil->stride) - offs[2][0];
  offs[2][2] = off3D(2, &start[0],
      &end[0],args[2].dat->size, args[2].stencil->stride) - offs[2][1] - offs[2][0];

  offs[3][0] = args[3].stencil->stride[0]*1;  //unit step in x dimension
  offs[3][1] = off3D(1, &start[0],
      &end[0],args[3].dat->size, args[3].stencil->stride) - offs[3][0];
  offs[3][2] = off3D(2, &start[0],
      &end[0],args[3].dat->size, args[3].stencil->stride) - offs[3][1] - offs[3][0];

  offs[4][0] = args[4].stencil->stride[0]*1;  //unit step in x dimension
  offs[4][1] = off3D(1, &start[0],
      &end[0],args[4].dat->size, args[4].stencil->stride) - offs[4][0];
  offs[4][2] = off3D(2, &start[0],
      &end[0],args[4].dat->size, args[4].stencil->stride) - offs[4][1] - offs[4][0];

  offs[5][0] = args[5].stencil->stride[0]*1;  //unit step in x dimension
  offs[5][1] = off3D(1, &start[0],
      &end[0],args[5].dat->size, args[5].stencil->stride) - offs[5][0];
  offs[5][2] = off3D(2, &start[0],
      &end[0],args[5].dat->size, args[5].stencil->stride) - offs[5][1] - offs[5][0];

  offs[6][0] = args[6].stencil->stride[0]*1;  //unit step in x dimension
  offs[6][1] = off3D(1, &start[0],
      &end[0],args[6].dat->size, args[6].stencil->stride) - offs[6][0];
  offs[6][2] = off3D(2, &start[0],
      &end[0],args[6].dat->size, args[6].stencil->stride) - offs[6][1] - offs[6][0];

  offs[7][0] = args[7].stencil->stride[0]*1;  //unit step in x dimension
  offs[7][1] = off3D(1, &start[0],
      &end[0],args[7].dat->size, args[7].stencil->stride) - offs[7][0];
  offs[7][2] = off3D(2, &start[0],
      &end[0],args[7].dat->size, args[7].stencil->stride) - offs[7][1] - offs[7][0];

  offs[8][0] = args[8].stencil->stride[0]*1;  //unit step in x dimension
  offs[8][1] = off3D(1, &start[0],
      &end[0],args[8].dat->size, args[8].stencil->stride) - offs[8][0];
  offs[8][2] = off3D(2, &start[0],
      &end[0],args[8].dat->size, args[8].stencil->stride) - offs[8][1] - offs[8][0];

  offs[9][0] = args[9].stencil->stride[0]*1;  //unit step in x dimension
  offs[9][1] = off3D(1, &start[0],
      &end[0],args[9].dat->size, args[9].stencil->stride) - offs[9][0];
  offs[9][2] = off3D(2, &start[0],
      &end[0],args[9].dat->size, args[9].stencil->stride) - offs[9][1] - offs[9][0];

  offs[10][0] = args[10].stencil->stride[0]*1;  //unit step in x dimension
  offs[10][1] = off3D(1, &start[0],
      &end[0],args[10].dat->size, args[10].stencil->stride) - offs[10][0];
  offs[10][2] = off3D(2, &start[0],
      &end[0],args[10].dat->size, args[10].stencil->stride) - offs[10][1] - offs[10][0];



  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int off0_2 = offs[0][2];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int off1_0 = offs[1][0];
  int off1_1 = offs[1][1];
  int off1_2 = offs[1][2];
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);
  int off2_0 = offs[2][0];
  int off2_1 = offs[2][1];
  int off2_2 = offs[2][2];
  int dat2 = (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size);
  int off3_0 = offs[3][0];
  int off3_1 = offs[3][1];
  int off3_2 = offs[3][2];
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);
  int off4_0 = offs[4][0];
  int off4_1 = offs[4][1];
  int off4_2 = offs[4][2];
  int dat4 = (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size);
  int off5_0 = offs[5][0];
  int off5_1 = offs[5][1];
  int off5_2 = offs[5][2];
  int dat5 = (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size);
  int off6_0 = offs[6][0];
  int off6_1 = offs[6][1];
  int off6_2 = offs[6][2];
  int dat6 = (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size);
  int off7_0 = offs[7][0];
  int off7_1 = offs[7][1];
  int off7_2 = offs[7][2];
  int dat7 = (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size);
  int off8_0 = offs[8][0];
  int off8_1 = offs[8][1];
  int off8_2 = offs[8][2];
  int dat8 = (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size);
  int off9_0 = offs[9][0];
  int off9_1 = offs[9][1];
  int off9_2 = offs[9][2];
  int dat9 = (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size);
  int off10_0 = offs[10][0];
  int off10_1 = offs[10][1];
  int off10_2 = offs[10][2];
  int dat10 = (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size);

  //set up initial pointers and exchange halos if necessary
  int base0 = args[0].dat->base_offset + (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) * start[0] * args[0].stencil->stride[0];
  base0 = base0+ (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
    args[0].dat->size[0] *
    start[1] * args[0].stencil->stride[1];
  base0 = base0+ (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
    args[0].dat->size[0] *
    args[0].dat->size[1] *
    start[2] * args[0].stencil->stride[2];
  p_a[0] = (char *)args[0].data + base0;

  int base1 = args[1].dat->base_offset + (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) * start[0] * args[1].stencil->stride[0];
  base1 = base1+ (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
    args[1].dat->size[0] *
    start[1] * args[1].stencil->stride[1];
  base1 = base1+ (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
    args[1].dat->size[0] *
    args[1].dat->size[1] *
    start[2] * args[1].stencil->stride[2];
  p_a[1] = (char *)args[1].data + base1;

  int base2 = args[2].dat->base_offset + (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) * start[0] * args[2].stencil->stride[0];
  base2 = base2+ (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
    args[2].dat->size[0] *
    start[1] * args[2].stencil->stride[1];
  base2 = base2+ (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
    args[2].dat->size[0] *
    args[2].dat->size[1] *
    start[2] * args[2].stencil->stride[2];
  p_a[2] = (char *)args[2].data + base2;

  int base3 = args[3].dat->base_offset + (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) * start[0] * args[3].stencil->stride[0];
  base3 = base3+ (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
    args[3].dat->size[0] *
    start[1] * args[3].stencil->stride[1];
  base3 = base3+ (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
    args[3].dat->size[0] *
    args[3].dat->size[1] *
    start[2] * args[3].stencil->stride[2];
  p_a[3] = (char *)args[3].data + base3;

  int base4 = args[4].dat->base_offset + (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) * start[0] * args[4].stencil->stride[0];
  base4 = base4+ (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
    args[4].dat->size[0] *
    start[1] * args[4].stencil->stride[1];
  base4 = base4+ (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
    args[4].dat->size[0] *
    args[4].dat->size[1] *
    start[2] * args[4].stencil->stride[2];
  p_a[4] = (char *)args[4].data + base4;

  int base5 = args[5].dat->base_offset + (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) * start[0] * args[5].stencil->stride[0];
  base5 = base5+ (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
    args[5].dat->size[0] *
    start[1] * args[5].stencil->stride[1];
  base5 = base5+ (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
    args[5].dat->size[0] *
    args[5].dat->size[1] *
    start[2] * args[5].stencil->stride[2];
  p_a[5] = (char *)args[5].data + base5;

  int base6 = args[6].dat->base_offset + (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) * start[0] * args[6].stencil->stride[0];
  base6 = base6+ (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
    args[6].dat->size[0] *
    start[1] * args[6].stencil->stride[1];
  base6 = base6+ (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size) *
    args[6].dat->size[0] *
    args[6].dat->size[1] *
    start[2] * args[6].stencil->stride[2];
  p_a[6] = (char *)args[6].data + base6;

  int base7 = args[7].dat->base_offset + (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size) * start[0] * args[7].stencil->stride[0];
  base7 = base7+ (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size) *
    args[7].dat->size[0] *
    start[1] * args[7].stencil->stride[1];
  base7 = base7+ (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size) *
    args[7].dat->size[0] *
    args[7].dat->size[1] *
    start[2] * args[7].stencil->stride[2];
  p_a[7] = (char *)args[7].data + base7;

  int base8 = args[8].dat->base_offset + (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size) * start[0] * args[8].stencil->stride[0];
  base8 = base8+ (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size) *
    args[8].dat->size[0] *
    start[1] * args[8].stencil->stride[1];
  base8 = base8+ (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size) *
    args[8].dat->size[0] *
    args[8].dat->size[1] *
    start[2] * args[8].stencil->stride[2];
  p_a[8] = (char *)args[8].data + base8;

  int base9 = args[9].dat->base_offset + (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size) * start[0] * args[9].stencil->stride[0];
  base9 = base9+ (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size) *
    args[9].dat->size[0] *
    start[1] * args[9].stencil->stride[1];
  base9 = base9+ (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size) *
    args[9].dat->size[0] *
    args[9].dat->size[1] *
    start[2] * args[9].stencil->stride[2];
  p_a[9] = (char *)args[9].data + base9;

  int base10 = args[10].dat->base_offset + (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size) * start[0] * args[10].stencil->stride[0];
  base10 = base10+ (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size) *
    args[10].dat->size[0] *
    start[1] * args[10].stencil->stride[1];
  base10 = base10+ (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size) *
    args[10].dat->size[0] *
    args[10].dat->size[1] *
    start[2] * args[10].stencil->stride[2];
  p_a[10] = (char *)args[10].data + base10;

  p_a[11] = (char *)arg_idx;



  //initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0];
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0];
  ydim3 = args[3].dat->size[1];
  xdim4 = args[4].dat->size[0];
  ydim4 = args[4].dat->size[1];
  xdim5 = args[5].dat->size[0];
  ydim5 = args[5].dat->size[1];
  xdim6 = args[6].dat->size[0];
  ydim6 = args[6].dat->size[1];
  xdim7 = args[7].dat->size[0];
  ydim7 = args[7].dat->size[1];
  xdim8 = args[8].dat->size[0];
  ydim8 = args[8].dat->size[1];
  xdim9 = args[9].dat->size[0];
  ydim9 = args[9].dat->size[1];
  xdim10 = args[10].dat->size[0];
  ydim10 = args[10].dat->size[1];

  //Halo Exchanges
  ops_H_D_exchanges_host(args, 12);
  ops_halo_exchanges(args,12,range);
  ops_H_D_exchanges_host(args, 12);

  if (OPS_diags > 1) {
    ops_timers_core(&c1,&t1);
    OPS_kernels[1].mpi_time += t1-t2;
  }

  int n_x;
  for ( int n_z=start[2]; n_z<end[2]; n_z++ ){
    for ( int n_y=start[1]; n_y<end[1]; n_y++ ){
      #pragma novector
      for( n_x=start[0]; n_x<start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x+=SIMD_VEC ) {
        //call kernel function, passing in pointers to data -vectorised
        for ( int i=0; i<SIMD_VEC; i++ ){
          preproc_kernel(  (double *)p_a[0]+ i*1*1, (double *)p_a[1]+ i*1*1, (double *)p_a[2]+ i*1*1,
           (double *)p_a[3]+ i*1*1, (double *)p_a[4]+ i*1*1, (double *)p_a[5]+ i*1*1, (double *)p_a[6]+ i*1*1,
           (double *)p_a[7]+ i*1*1, (double *)p_a[8]+ i*1*1, (double *)p_a[9]+ i*1*1, (double *)p_a[10]+ i*1*1,
           (int *)p_a[11] );

          arg_idx[0]++;
        }

        //shift pointers to data x direction
        p_a[0]= p_a[0] + (dat0 * off0_0)*SIMD_VEC;
        p_a[1]= p_a[1] + (dat1 * off1_0)*SIMD_VEC;
        p_a[2]= p_a[2] + (dat2 * off2_0)*SIMD_VEC;
        p_a[3]= p_a[3] + (dat3 * off3_0)*SIMD_VEC;
        p_a[4]= p_a[4] + (dat4 * off4_0)*SIMD_VEC;
        p_a[5]= p_a[5] + (dat5 * off5_0)*SIMD_VEC;
        p_a[6]= p_a[6] + (dat6 * off6_0)*SIMD_VEC;
        p_a[7]= p_a[7] + (dat7 * off7_0)*SIMD_VEC;
        p_a[8]= p_a[8] + (dat8 * off8_0)*SIMD_VEC;
        p_a[9]= p_a[9] + (dat9 * off9_0)*SIMD_VEC;
        p_a[10]= p_a[10] + (dat10 * off10_0)*SIMD_VEC;
      }

      for ( int n_x=start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x<end[0]; n_x++ ){
        //call kernel function, passing in pointers to data - remainder
        preproc_kernel(  (double *)p_a[0], (double *)p_a[1], (double *)p_a[2],
           (double *)p_a[3], (double *)p_a[4], (double *)p_a[5], (double *)p_a[6],
           (double *)p_a[7], (double *)p_a[8], (double *)p_a[9], (double *)p_a[10],
           (int *)p_a[11] );


        //shift pointers to data x direction
        p_a[0]= p_a[0] + (dat0 * off0_0);
        p_a[1]= p_a[1] + (dat1 * off1_0);
        p_a[2]= p_a[2] + (dat2 * off2_0);
        p_a[3]= p_a[3] + (dat3 * off3_0);
        p_a[4]= p_a[4] + (dat4 * off4_0);
        p_a[5]= p_a[5] + (dat5 * off5_0);
        p_a[6]= p_a[6] + (dat6 * off6_0);
        p_a[7]= p_a[7] + (dat7 * off7_0);
        p_a[8]= p_a[8] + (dat8 * off8_0);
        p_a[9]= p_a[9] + (dat9 * off9_0);
        p_a[10]= p_a[10] + (dat10 * off10_0);
        arg_idx[0]++;
      }

      //shift pointers to data y direction
      p_a[0]= p_a[0] + (dat0 * off0_1);
      p_a[1]= p_a[1] + (dat1 * off1_1);
      p_a[2]= p_a[2] + (dat2 * off2_1);
      p_a[3]= p_a[3] + (dat3 * off3_1);
      p_a[4]= p_a[4] + (dat4 * off4_1);
      p_a[5]= p_a[5] + (dat5 * off5_1);
      p_a[6]= p_a[6] + (dat6 * off6_1);
      p_a[7]= p_a[7] + (dat7 * off7_1);
      p_a[8]= p_a[8] + (dat8 * off8_1);
      p_a[9]= p_a[9] + (dat9 * off9_1);
      p_a[10]= p_a[10] + (dat10 * off10_1);
      arg_idx[0] = arg_idx_base[0];
      arg_idx[1]++;
    }
    //shift pointers to data z direction
    p_a[0]= p_a[0] + (dat0 * off0_2);
    p_a[1]= p_a[1] + (dat1 * off1_2);
    p_a[2]= p_a[2] + (dat2 * off2_2);
    p_a[3]= p_a[3] + (dat3 * off3_2);
    p_a[4]= p_a[4] + (dat4 * off4_2);
    p_a[5]= p_a[5] + (dat5 * off5_2);
    p_a[6]= p_a[6] + (dat6 * off6_2);
    p_a[7]= p_a[7] + (dat7 * off7_2);
    p_a[8]= p_a[8] + (dat8 * off8_2);
    p_a[9]= p_a[9] + (dat9 * off9_2);
    p_a[10]= p_a[10] + (dat10 * off10_2);
    arg_idx[0] = arg_idx_base[0];
    arg_idx[1] = arg_idx_base[1];
    arg_idx[2]++;
  }
  if (OPS_diags > 1) {
    ops_timers_core(&c2,&t2);
    OPS_kernels[1].time += t2-t1;
  }
  ops_set_dirtybit_host(args, 12);
  ops_set_halo_dirtybit3(&args[1],range);
  ops_set_halo_dirtybit3(&args[2],range);
  ops_set_halo_dirtybit3(&args[3],range);
  ops_set_halo_dirtybit3(&args[4],range);
  ops_set_halo_dirtybit3(&args[5],range);
  ops_set_halo_dirtybit3(&args[6],range);
  ops_set_halo_dirtybit3(&args[7],range);
  ops_set_halo_dirtybit3(&args[8],range);
  ops_set_halo_dirtybit3(&args[9],range);
  ops_set_halo_dirtybit3(&args[10],range);

  if (OPS_diags > 1) {
    //Update kernel record
    ops_timers_core(&c1,&t1);
    OPS_kernels[1].mpi_time += t1-t2;
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg1);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg2);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg4);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg5);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg6);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg7);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg8);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg9);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg10);
  }
}
// host stub function
void ops_par_loop_update_halo_kernel2_zvel_plus_4_right(
    char const *name, ops_block block, int dim, int *range, ops_arg arg0,
    ops_arg arg1, ops_arg arg2) {

  // Timing
  double t1, t2, c1, c2;
  ops_arg args[3] = {arg0, arg1, arg2};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 3, range, 53))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(53, "update_halo_kernel2_zvel_plus_4_right");
    OPS_kernels[53].count++;
    ops_timers_core(&c1, &t1);
  }

  // compute localy allocated range for the sub-block

  int start[3];
  int end[3];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif // OPS_MPI

  int arg_idx[3];
  int arg_idx_base[3];
#ifdef OPS_MPI
  if (compute_ranges(args, 3, block, range, start, end, arg_idx) < 0)
    return;
#else // OPS_MPI
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif
  for (int n = 0; n < 3; n++) {
    arg_idx_base[n] = arg_idx[n];
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;

  int *arg2h = (int *)arg2.data;
// Upload large globals
#ifdef OPS_GPU
  int consts_bytes = 0;
  consts_bytes += ROUND_UP(NUM_FIELDS * sizeof(int));
  reallocConstArrays(consts_bytes);
  consts_bytes = 0;
  args[2].data = OPS_consts_h + consts_bytes;
  args[2].data_d = OPS_consts_d + consts_bytes;
  for (int d = 0; d < NUM_FIELDS; d++)
    ((int *)args[2].data)[d] = arg2h[d];
  consts_bytes += ROUND_UP(NUM_FIELDS * sizeof(int));
  mvConstArraysToDevice(consts_bytes);
#endif // OPS_GPU

  // set up initial pointers
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * start[1] * args[0].stencil->stride[1];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * args[0].dat->size[1] * start[2] *
              args[0].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
#else
  double *p_a0 = (double *)((char *)args[0].data + base0);
#endif

  int base1 = args[1].dat->base_offset +
              (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
                  start[0] * args[1].stencil->stride[0];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * start[1] * args[1].stencil->stride[1];
  base1 = base1 +
          (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
              args[1].dat->size[0] * args[1].dat->size[1] * start[2] *
              args[1].stencil->stride[2];
#ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
#else
  double *p_a1 = (double *)((char *)args[1].data + base1);
#endif

#ifdef OPS_GPU
  int *p_a2 = (int *)args[2].data_d;
#else
  int *p_a2 = arg2h;
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);
  int z_size = MAX(0, end[2] - start[2]);

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];
  if (xdim0 != xdim0_update_halo_kernel2_zvel_plus_4_right_h ||
      ydim0 != ydim0_update_halo_kernel2_zvel_plus_4_right_h ||
      xdim1 != xdim1_update_halo_kernel2_zvel_plus_4_right_h ||
      ydim1 != ydim1_update_halo_kernel2_zvel_plus_4_right_h) {
    xdim0_update_halo_kernel2_zvel_plus_4_right = xdim0;
    xdim0_update_halo_kernel2_zvel_plus_4_right_h = xdim0;
    ydim0_update_halo_kernel2_zvel_plus_4_right = ydim0;
    ydim0_update_halo_kernel2_zvel_plus_4_right_h = ydim0;
    xdim1_update_halo_kernel2_zvel_plus_4_right = xdim1;
    xdim1_update_halo_kernel2_zvel_plus_4_right_h = xdim1;
    ydim1_update_halo_kernel2_zvel_plus_4_right = ydim1;
    ydim1_update_halo_kernel2_zvel_plus_4_right_h = ydim1;
  }

// Halo Exchanges

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 3);
#else
  ops_H_D_exchanges_host(args, 3);
#endif
  ops_halo_exchanges(args, 3, range);

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 3);
#else
  ops_H_D_exchanges_host(args, 3);
#endif
  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[53].mpi_time += t2 - t1;
  }

  update_halo_kernel2_zvel_plus_4_right_c_wrapper(p_a0, p_a1, p_a2, x_size,
                                                  y_size, z_size);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[53].time += t1 - t2;
  }
#ifdef OPS_GPU
  ops_set_dirtybit_device(args, 3);
#else
  ops_set_dirtybit_host(args, 3);
#endif
  ops_set_halo_dirtybit3(&args[0], range);
  ops_set_halo_dirtybit3(&args[1], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[53].mpi_time += t2 - t1;
    OPS_kernels[53].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[53].transfer += ops_compute_transfer(dim, start, end, &arg1);
  }
}
예제 #9
0
// host stub function
void ops_par_loop_left_bndcon(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1) {

  //Timing
  double t1,t2,c1,c2;

  char *p_a[2];
  int  offs[2][2];
  ops_arg args[2] = { arg0, arg1};



  #ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args,2,range,2)) return;
  #endif

  if (OPS_diags > 1) {
    ops_timing_realloc(2,"left_bndcon");
    OPS_kernels[2].count++;
    ops_timers_core(&c2,&t2);
  }

  //compute locally allocated range for the sub-block
  int start[2];
  int end[2];

  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<2; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else
  for ( int n=0; n<2; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif
  #ifdef OPS_DEBUG
  ops_register_args(args, "left_bndcon");
  #endif

  offs[0][0] = args[0].stencil->stride[0]*1;  //unit step in x dimension
  offs[0][1] = off2D(1, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][0];


  int arg_idx[2];
  #ifdef OPS_MPI
  arg_idx[0] = sb->decomp_disp[0]+start[0];
  arg_idx[1] = sb->decomp_disp[1]+start[1];
  #else
  arg_idx[0] = start[0];
  arg_idx[1] = start[1];
  #endif

  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);

  //set up initial pointers and exchange halos if necessary
  int base0 = args[0].dat->base_offset + (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) * start[0] * args[0].stencil->stride[0];
  base0 = base0+ (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
    args[0].dat->size[0] *
    start[1] * args[0].stencil->stride[1];
  p_a[0] = (char *)args[0].data + base0;

  p_a[1] = (char *)arg_idx;



  //initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];

  //Halo Exchanges
  ops_H_D_exchanges_host(args, 2);
  ops_halo_exchanges(args,2,range);
  ops_H_D_exchanges_host(args, 2);

  if (OPS_diags > 1) {
    ops_timers_core(&c1,&t1);
    OPS_kernels[2].mpi_time += t1-t2;
  }

  int n_x;
  for ( int n_y=start[1]; n_y<end[1]; n_y++ ){
    #pragma novector
    for( n_x=start[0]; n_x<start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x+=SIMD_VEC ) {
      //call kernel function, passing in pointers to data -vectorised
      for ( int i=0; i<SIMD_VEC; i++ ){
        left_bndcon(  (double *)p_a[0]+ i*1*1, (int *)p_a[1] );

        arg_idx[0]++;
      }

      //shift pointers to data x direction
      p_a[0]= p_a[0] + (dat0 * off0_0)*SIMD_VEC;
    }

    for ( int n_x=start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x<end[0]; n_x++ ){
      //call kernel function, passing in pointers to data - remainder
      left_bndcon(  (double *)p_a[0], (int *)p_a[1] );


      //shift pointers to data x direction
      p_a[0]= p_a[0] + (dat0 * off0_0);
      arg_idx[0]++;
    }

    //shift pointers to data y direction
    p_a[0]= p_a[0] + (dat0 * off0_1);
    #ifdef OPS_MPI
    arg_idx[0] = sb->decomp_disp[0]+start[0];
    #else
    arg_idx[0] = start[0];
    #endif
    arg_idx[1]++;
  }
  if (OPS_diags > 1) {
    ops_timers_core(&c2,&t2);
    OPS_kernels[2].time += t2-t1;
  }
  ops_set_dirtybit_host(args, 2);
  ops_set_halo_dirtybit3(&args[0],range);

  if (OPS_diags > 1) {
    //Update kernel record
    ops_timers_core(&c1,&t1);
    OPS_kernels[2].mpi_time += t1-t2;
    OPS_kernels[2].transfer += ops_compute_transfer(dim, start, end, &arg0);
  }
}
// host stub function
void ops_par_loop_tea_leaf_norm2_kernel(char const *name, ops_block block,
                                        int dim, int *range, ops_arg arg0,
                                        ops_arg arg1) {

  // Timing
  double t1, t2, c1, c2;

  int offs[2][2];
  ops_arg args[2] = {arg0, arg1};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 2, range, 39))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(39, "tea_leaf_norm2_kernel");
    OPS_kernels[39].count++;
    ops_timers_core(&c1, &t1);
  }

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif

  // compute locally allocated range for the sub-block

  int start[2];
  int end[2];
  int arg_idx[2];

#ifdef OPS_MPI
  if (!sb->owned)
    return;
  for (int n = 0; n < 2; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
    if (end[n] < start[n])
      end[n] = start[n];
  }
#else
  for (int n = 0; n < 2; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif
#ifdef OPS_DEBUG
  ops_register_args(args, "tea_leaf_norm2_kernel");
#endif

  offs[0][0] = args[0].stencil->stride[0] * 1; // unit step in x dimension
  offs[0][1] =
      off2D(1, &start[0], &end[0], args[0].dat->size, args[0].stencil->stride) -
      offs[0][0];

  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);

#ifdef OPS_MPI
  double *arg1h =
      (double *)(((ops_reduction)args[1].data)->data +
                 ((ops_reduction)args[1].data)->size * block->index);
#else
  double *arg1h = (double *)(((ops_reduction)args[1].data)->data);
#endif
  // Halo Exchanges
  ops_H_D_exchanges_host(args, 2);
  ops_halo_exchanges(args, 2, range);
  ops_H_D_exchanges_host(args, 2);

#ifdef _OPENMP
  int nthreads = omp_get_max_threads();
#else
  int nthreads = 1;
#endif
  // allocate and initialise arrays for global reduction
  // assumes a max of MAX_REDUCT_THREADS threads with a cacche line size of 64
  // bytes
  double arg_gbl1[MAX(1, 64) * MAX_REDUCT_THREADS];
  for (int thr = 0; thr < nthreads; thr++) {
    for (int d = 0; d < 1; d++) {
      arg_gbl1[d + 64 * thr] = ZERO_double;
    }
  }
  xdim0 = args[0].dat->size[0];

  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[39].mpi_time += t2 - t1;
  }

#pragma omp parallel for
  for (int thr = 0; thr < nthreads; thr++) {

    int y_size = end[1] - start[1];
    char *p_a[2];

    int start_i = start[1] + ((y_size - 1) / nthreads + 1) * thr;
    int finish_i =
        start[1] + MIN(((y_size - 1) / nthreads + 1) * (thr + 1), y_size);

    // get address per thread
    int start0 = start[0];
    int start1 = start_i;

    // set up initial pointers
    int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[0].dat->d_m[d];
#endif
    int base0 = dat0 * 1 * (start0 * args[0].stencil->stride[0] -
                            args[0].dat->base[0] - d_m[0]);
    base0 = base0 +
            dat0 * args[0].dat->size[0] * (start1 * args[0].stencil->stride[1] -
                                           args[0].dat->base[1] - d_m[1]);
    p_a[0] = (char *)args[0].data + base0;

    p_a[1] = (char *)arg1h;

    for (int n_y = start_i; n_y < finish_i; n_y++) {
      for (int n_x = start[0]; n_x < start[0] + (end[0] - start[0]) / SIMD_VEC;
           n_x++) {
        // call kernel function, passing in pointers to data -vectorised
        for (int i = 0; i < SIMD_VEC; i++) {
          tea_leaf_norm2_kernel((const double *)p_a[0] + i * 1 * 1,
                                &arg_gbl1[64 * thr]);
        }

        // shift pointers to data x direction
        p_a[0] = p_a[0] + (dat0 * off0_0) * SIMD_VEC;
      }

      for (int n_x = start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
           n_x < end[0]; n_x++) {
        // call kernel function, passing in pointers to data - remainder
        tea_leaf_norm2_kernel((const double *)p_a[0], &arg_gbl1[64 * thr]);

        // shift pointers to data x direction
        p_a[0] = p_a[0] + (dat0 * off0_0);
      }

      // shift pointers to data y direction
      p_a[0] = p_a[0] + (dat0 * off0_1);
    }
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[39].time += t1 - t2;
  }

  // combine reduction data
  for (int thr = 0; thr < nthreads; thr++) {
    for (int d = 0; d < 1; d++) {
      arg1h[d] += arg_gbl1[64 * thr + d];
    }
  }
  ops_set_dirtybit_host(args, 2);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[39].mpi_time += t2 - t1;
    OPS_kernels[39].transfer += ops_compute_transfer(dim, start, end, &arg0);
  }
}
// host stub function
void ops_par_loop_calc_dt_kernel_get(char const *name, ops_block Block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3, ops_arg arg4, ops_arg arg5) {

  ops_arg args[6] = { arg0, arg1, arg2, arg3, arg4, arg5};


  ops_timing_realloc(128,"calc_dt_kernel_get");
  OPS_kernels[128].count++;

  //compute localy allocated range for the sub-block
  int start[3];
  int end[3];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);
  int z_size = MAX(0,end[2]-start[2]);


  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  ydim1 = args[1].dat->size[1];
  xdim4 = args[4].dat->size[0]*args[4].dat->dim;
  ydim4 = args[4].dat->size[1];

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  if (xdim0 != xdim0_calc_dt_kernel_get_h || ydim0 != ydim0_calc_dt_kernel_get_h || xdim1 != xdim1_calc_dt_kernel_get_h || ydim1 != ydim1_calc_dt_kernel_get_h || xdim4 != xdim4_calc_dt_kernel_get_h || ydim4 != ydim4_calc_dt_kernel_get_h) {
    xdim0_calc_dt_kernel_get = xdim0;
    xdim0_calc_dt_kernel_get_h = xdim0;
    ydim0_calc_dt_kernel_get = ydim0;
    ydim0_calc_dt_kernel_get_h = ydim0;
    xdim1_calc_dt_kernel_get = xdim1;
    xdim1_calc_dt_kernel_get_h = xdim1;
    ydim1_calc_dt_kernel_get = ydim1;
    ydim1_calc_dt_kernel_get_h = ydim1;
    xdim4_calc_dt_kernel_get = xdim4;
    xdim4_calc_dt_kernel_get_h = xdim4;
    ydim4_calc_dt_kernel_get = ydim4;
    ydim4_calc_dt_kernel_get_h = ydim4;
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat4 = args[4].dat->elem_size;

  #ifdef OPS_MPI
  double *arg2h = (double *)(((ops_reduction)args[2].data)->data + ((ops_reduction)args[2].data)->size * block->index);
  #else //OPS_MPI
  double *arg2h = (double *)(((ops_reduction)args[2].data)->data);
  #endif //OPS_MPI
  #ifdef OPS_MPI
  double *arg3h = (double *)(((ops_reduction)args[3].data)->data + ((ops_reduction)args[3].data)->size * block->index);
  #else //OPS_MPI
  double *arg3h = (double *)(((ops_reduction)args[3].data)->data);
  #endif //OPS_MPI
  #ifdef OPS_MPI
  double *arg5h = (double *)(((ops_reduction)args[5].data)->data + ((ops_reduction)args[5].data)->size * block->index);
  #else //OPS_MPI
  double *arg5h = (double *)(((ops_reduction)args[5].data)->data);
  #endif //OPS_MPI

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = dat0 * 1 * 
    (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    args[0].dat->size[1] *
    (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
  #else
  double *p_a0 = (double *)((char *)args[0].data + base0);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = dat1 * 1 * 
    (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    args[1].dat->size[1] *
    (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
  #else
  double *p_a1 = (double *)((char *)args[1].data + base1);
  #endif

  double *p_a2 = arg2h;
  double *p_a3 = arg3h;
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d];
  #endif //OPS_MPI
  int base4 = dat4 * 1 * 
    (start[0] * args[4].stencil->stride[0] - args[4].dat->base[0] - d_m[0]);
  base4 = base4+ dat4 *
    args[4].dat->size[0] *
    (start[1] * args[4].stencil->stride[1] - args[4].dat->base[1] - d_m[1]);
  base4 = base4+ dat4 *
    args[4].dat->size[0] *
    args[4].dat->size[1] *
    (start[2] * args[4].stencil->stride[2] - args[4].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a4 = (double *)((char *)args[4].data_d + base4);
  #else
  double *p_a4 = (double *)((char *)args[4].data + base4);
  #endif

  double *p_a5 = arg5h;

  #ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 6);
  #else
  ops_H_D_exchanges_host(args, 6);
  #endif
  ops_halo_exchanges(args,6,range);

  ops_timers_core(&c1,&t1);
  OPS_kernels[128].mpi_time += t1-t2;

  calc_dt_kernel_get_c_wrapper(
    p_a0,
    p_a1,
    p_a2,
    p_a3,
    p_a4,
    p_a5,
    x_size, y_size, z_size);

  ops_timers_core(&c2,&t2);
  OPS_kernels[128].time += t2-t1;
  #ifdef OPS_GPU
  ops_set_dirtybit_device(args, 6);
  #else
  ops_set_dirtybit_host(args, 6);
  #endif

  //Update kernel record
  OPS_kernels[128].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[128].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[128].transfer += ops_compute_transfer(dim, range, &arg4);
}
// host stub function
void ops_par_loop_poisson_kernel_initialguess(char const *name, ops_block block,
                                              int dim, int *range,
                                              ops_arg arg0) {

  // Timing
  double t1, t2, c1, c2;
  ops_arg args[1] = {arg0};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 1, range, 2))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(2, "poisson_kernel_initialguess");
    OPS_kernels[2].count++;
    ops_timers_core(&c1, &t1);
  }

  // compute localy allocated range for the sub-block

  int start[2];
  int end[2];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif // OPS_MPI

  int arg_idx[2];
  int arg_idx_base[2];
#ifdef OPS_MPI
  if (compute_ranges(args, 1, block, range, start, end, arg_idx) < 0)
    return;
#else // OPS_MPI
  for (int n = 0; n < 2; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif
  for (int n = 0; n < 2; n++) {
    arg_idx_base[n] = arg_idx[n];
  }

  int dat0 = args[0].dat->elem_size;

  // set up initial pointers
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  base0 = base0 +
          (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
              args[0].dat->size[0] * start[1] * args[0].stencil->stride[1];
#ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
#else
  double *p_a0 = (double *)((char *)args[0].data + base0);
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  if (xdim0 != xdim0_poisson_kernel_initialguess_h) {
    xdim0_poisson_kernel_initialguess = xdim0;
    xdim0_poisson_kernel_initialguess_h = xdim0;
  }

// Halo Exchanges

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 1);
#else
  ops_H_D_exchanges_host(args, 1);
#endif
  ops_halo_exchanges(args, 1, range);

#ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 1);
#else
  ops_H_D_exchanges_host(args, 1);
#endif
  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[2].mpi_time += t2 - t1;
  }

  poisson_kernel_initialguess_c_wrapper(p_a0, x_size, y_size);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[2].time += t1 - t2;
  }
#ifdef OPS_GPU
  ops_set_dirtybit_device(args, 1);
#else
  ops_set_dirtybit_host(args, 1);
#endif
  ops_set_halo_dirtybit3(&args[0], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[2].mpi_time += t2 - t1;
    OPS_kernels[2].transfer += ops_compute_transfer(dim, start, end, &arg0);
  }
}
// host stub function
void ops_par_loop_calc_dt_kernel_get(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3) {
  ops_arg args[4] = { arg0, arg1, arg2, arg3};


  #ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args,4,range,29)) return;
  #endif

  ops_timing_realloc(29,"calc_dt_kernel_get");
  OPS_kernels[29].count++;

  //compute locally allocated range for the sub-block
  int start[2];
  int end[2];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<2; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<2; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);


  int xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  int xdim1 = args[1].dat->size[0]*args[1].dat->dim;

  //build opencl kernel if not already built

  buildOpenCLKernels_calc_dt_kernel_get(
  xdim0,xdim1);

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  //set up OpenCL thread blocks
  size_t globalWorkSize[3] = {((x_size-1)/OPS_block_size_x+ 1)*OPS_block_size_x, ((y_size-1)/OPS_block_size_y + 1)*OPS_block_size_y, 1};
  size_t localWorkSize[3] =  {OPS_block_size_x,OPS_block_size_y,1};


  #ifdef OPS_MPI
  double *arg2h = (double *)(((ops_reduction)args[2].data)->data + ((ops_reduction)args[2].data)->size * block->index);
  #else //OPS_MPI
  double *arg2h = (double *)(((ops_reduction)args[2].data)->data);
  #endif //OPS_MPI
  #ifdef OPS_MPI
  double *arg3h = (double *)(((ops_reduction)args[3].data)->data + ((ops_reduction)args[3].data)->size * block->index);
  #else //OPS_MPI
  double *arg3h = (double *)(((ops_reduction)args[3].data)->data);
  #endif //OPS_MPI

  int nblocks = ((x_size-1)/OPS_block_size_x+ 1)*((y_size-1)/OPS_block_size_y + 1);
  int maxblocks = nblocks;
  int reduct_bytes = 0;

  reduct_bytes += ROUND_UP(maxblocks*1*sizeof(double));
  reduct_bytes += ROUND_UP(maxblocks*1*sizeof(double));

  reallocReductArrays(reduct_bytes);
  reduct_bytes = 0;

  int r_bytes2 = reduct_bytes/sizeof(double);
  arg2.data = OPS_reduct_h + reduct_bytes;
  arg2.data_d = OPS_reduct_d;// + reduct_bytes;
  for (int b=0; b<maxblocks; b++)
  for (int d=0; d<1; d++) ((double *)arg2.data)[d+b*1] = ZERO_double;
  reduct_bytes += ROUND_UP(maxblocks*1*sizeof(double));

  int r_bytes3 = reduct_bytes/sizeof(double);
  arg3.data = OPS_reduct_h + reduct_bytes;
  arg3.data_d = OPS_reduct_d;// + reduct_bytes;
  for (int b=0; b<maxblocks; b++)
  for (int d=0; d<1; d++) ((double *)arg3.data)[d+b*1] = ZERO_double;
  reduct_bytes += ROUND_UP(maxblocks*1*sizeof(double));


  mvReductArraysToDevice(reduct_bytes);
  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = 1 * 
  (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0 + args[0].dat->size[0] *
  (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = 1 * 
  (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1 + args[1].dat->size[0] *
  (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);


  ops_H_D_exchanges_device(args, 4);
  ops_halo_exchanges(args,4,range);
  ops_H_D_exchanges_device(args, 4);

  ops_timers_core(&c1,&t1);
  OPS_kernels[29].mpi_time += t1-t2;

  int nthread = OPS_block_size_x*OPS_block_size_y;


  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 0, sizeof(cl_mem), (void*) &arg0.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 1, sizeof(cl_mem), (void*) &arg1.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 2, sizeof(cl_mem), (void*) &arg2.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 3, nthread*sizeof(double), NULL));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 4, sizeof(cl_int), (void*) &r_bytes2 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 5, sizeof(cl_mem), (void*) &arg3.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 6, nthread*sizeof(double), NULL));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 7, sizeof(cl_int), (void*) &r_bytes3 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 8, sizeof(cl_int), (void*) &base0 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 9, sizeof(cl_int), (void*) &base1 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 10, sizeof(cl_int), (void*) &x_size ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[29], 11, sizeof(cl_int), (void*) &y_size ));

  //call/enque opencl kernel wrapper function
  clSafeCall( clEnqueueNDRangeKernel(OPS_opencl_core.command_queue, OPS_opencl_core.kernel[29], 3, NULL, globalWorkSize, localWorkSize, 0, NULL, NULL) );
  if (OPS_diags>1) {
    clSafeCall( clFinish(OPS_opencl_core.command_queue) );
  }

  mvReductArraysToHost(reduct_bytes);
  for ( int b=0; b<maxblocks; b++ ){
    for ( int d=0; d<1; d++ ){
      arg2h[d] = arg2h[d] + ((double *)arg2.data)[d+b*1];
    }
  }
  arg2.data = (char *)arg2h;

  for ( int b=0; b<maxblocks; b++ ){
    for ( int d=0; d<1; d++ ){
      arg3h[d] = arg3h[d] + ((double *)arg3.data)[d+b*1];
    }
  }
  arg3.data = (char *)arg3h;

  ops_set_dirtybit_device(args, 4);

  //Update kernel record
  ops_timers_core(&c2,&t2);
  OPS_kernels[29].time += t2-t1;
  OPS_kernels[29].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[29].transfer += ops_compute_transfer(dim, range, &arg1);
}
// host stub function
void ops_par_loop_PdV_kernel_predict(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3,
 ops_arg arg4, ops_arg arg5, ops_arg arg6, ops_arg arg7, ops_arg arg8,
 ops_arg arg9, ops_arg arg10, ops_arg arg11, ops_arg arg12, ops_arg arg13) {
  ops_arg args[14] = { arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13};


  ops_timing_realloc(5,"PdV_kernel_predict");
  OPS_kernels[5].count++;

  //compute locally allocated range for the sub-block
  int start[3];
  int end[3];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);
  int z_size = MAX(0,end[2]-start[2]);


  int xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  int ydim0 = args[0].dat->size[1];
  int xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  int ydim1 = args[1].dat->size[1];
  int xdim2 = args[2].dat->size[0]*args[2].dat->dim;
  int ydim2 = args[2].dat->size[1];
  int xdim3 = args[3].dat->size[0]*args[3].dat->dim;
  int ydim3 = args[3].dat->size[1];
  int xdim4 = args[4].dat->size[0]*args[4].dat->dim;
  int ydim4 = args[4].dat->size[1];
  int xdim5 = args[5].dat->size[0]*args[5].dat->dim;
  int ydim5 = args[5].dat->size[1];
  int xdim6 = args[6].dat->size[0]*args[6].dat->dim;
  int ydim6 = args[6].dat->size[1];
  int xdim7 = args[7].dat->size[0]*args[7].dat->dim;
  int ydim7 = args[7].dat->size[1];
  int xdim8 = args[8].dat->size[0]*args[8].dat->dim;
  int ydim8 = args[8].dat->size[1];
  int xdim9 = args[9].dat->size[0]*args[9].dat->dim;
  int ydim9 = args[9].dat->size[1];
  int xdim10 = args[10].dat->size[0]*args[10].dat->dim;
  int ydim10 = args[10].dat->size[1];
  int xdim11 = args[11].dat->size[0]*args[11].dat->dim;
  int ydim11 = args[11].dat->size[1];
  int xdim12 = args[12].dat->size[0]*args[12].dat->dim;
  int ydim12 = args[12].dat->size[1];
  int xdim13 = args[13].dat->size[0]*args[13].dat->dim;
  int ydim13 = args[13].dat->size[1];

  //build opencl kernel if not already built

  buildOpenCLKernels_PdV_kernel_predict(
  xdim0,ydim0,xdim1,ydim1,xdim2,ydim2,xdim3,ydim3,xdim4,ydim4,xdim5,ydim5,xdim6,ydim6,xdim7,ydim7,xdim8,ydim8,xdim9,ydim9,xdim10,ydim10,xdim11,ydim11,xdim12,ydim12,xdim13,ydim13);

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  //set up OpenCL thread blocks
  size_t globalWorkSize[3] = {((x_size-1)/OPS_block_size_x+ 1)*OPS_block_size_x, ((y_size-1)/OPS_block_size_y + 1)*OPS_block_size_y, MAX(1,end[2]-start[2])};
  size_t localWorkSize[3] =  {OPS_block_size_x,OPS_block_size_y,1};





  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;
  int dat4 = args[4].dat->elem_size;
  int dat5 = args[5].dat->elem_size;
  int dat6 = args[6].dat->elem_size;
  int dat7 = args[7].dat->elem_size;
  int dat8 = args[8].dat->elem_size;
  int dat9 = args[9].dat->elem_size;
  int dat10 = args[10].dat->elem_size;
  int dat11 = args[11].dat->elem_size;
  int dat12 = args[12].dat->elem_size;
  int dat13 = args[13].dat->elem_size;

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = 1 * 
  (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0 + args[0].dat->size[0] *
  (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0 + args[0].dat->size[0] *  args[0].dat->size[1] *
  (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = 1 * 
  (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1 + args[1].dat->size[0] *
  (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1 + args[1].dat->size[0] *  args[1].dat->size[1] *
  (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d];
  #endif //OPS_MPI
  int base2 = 1 * 
  (start[0] * args[2].stencil->stride[0] - args[2].dat->base[0] - d_m[0]);
  base2 = base2 + args[2].dat->size[0] *
  (start[1] * args[2].stencil->stride[1] - args[2].dat->base[1] - d_m[1]);
  base2 = base2 + args[2].dat->size[0] *  args[2].dat->size[1] *
  (start[2] * args[2].stencil->stride[2] - args[2].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d];
  #endif //OPS_MPI
  int base3 = 1 * 
  (start[0] * args[3].stencil->stride[0] - args[3].dat->base[0] - d_m[0]);
  base3 = base3 + args[3].dat->size[0] *
  (start[1] * args[3].stencil->stride[1] - args[3].dat->base[1] - d_m[1]);
  base3 = base3 + args[3].dat->size[0] *  args[3].dat->size[1] *
  (start[2] * args[3].stencil->stride[2] - args[3].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d];
  #endif //OPS_MPI
  int base4 = 1 * 
  (start[0] * args[4].stencil->stride[0] - args[4].dat->base[0] - d_m[0]);
  base4 = base4 + args[4].dat->size[0] *
  (start[1] * args[4].stencil->stride[1] - args[4].dat->base[1] - d_m[1]);
  base4 = base4 + args[4].dat->size[0] *  args[4].dat->size[1] *
  (start[2] * args[4].stencil->stride[2] - args[4].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d];
  #endif //OPS_MPI
  int base5 = 1 * 
  (start[0] * args[5].stencil->stride[0] - args[5].dat->base[0] - d_m[0]);
  base5 = base5 + args[5].dat->size[0] *
  (start[1] * args[5].stencil->stride[1] - args[5].dat->base[1] - d_m[1]);
  base5 = base5 + args[5].dat->size[0] *  args[5].dat->size[1] *
  (start[2] * args[5].stencil->stride[2] - args[5].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d] + OPS_sub_dat_list[args[6].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d];
  #endif //OPS_MPI
  int base6 = 1 * 
  (start[0] * args[6].stencil->stride[0] - args[6].dat->base[0] - d_m[0]);
  base6 = base6 + args[6].dat->size[0] *
  (start[1] * args[6].stencil->stride[1] - args[6].dat->base[1] - d_m[1]);
  base6 = base6 + args[6].dat->size[0] *  args[6].dat->size[1] *
  (start[2] * args[6].stencil->stride[2] - args[6].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[7].dat->d_m[d] + OPS_sub_dat_list[args[7].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[7].dat->d_m[d];
  #endif //OPS_MPI
  int base7 = 1 * 
  (start[0] * args[7].stencil->stride[0] - args[7].dat->base[0] - d_m[0]);
  base7 = base7 + args[7].dat->size[0] *
  (start[1] * args[7].stencil->stride[1] - args[7].dat->base[1] - d_m[1]);
  base7 = base7 + args[7].dat->size[0] *  args[7].dat->size[1] *
  (start[2] * args[7].stencil->stride[2] - args[7].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[8].dat->d_m[d] + OPS_sub_dat_list[args[8].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[8].dat->d_m[d];
  #endif //OPS_MPI
  int base8 = 1 * 
  (start[0] * args[8].stencil->stride[0] - args[8].dat->base[0] - d_m[0]);
  base8 = base8 + args[8].dat->size[0] *
  (start[1] * args[8].stencil->stride[1] - args[8].dat->base[1] - d_m[1]);
  base8 = base8 + args[8].dat->size[0] *  args[8].dat->size[1] *
  (start[2] * args[8].stencil->stride[2] - args[8].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[9].dat->d_m[d] + OPS_sub_dat_list[args[9].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[9].dat->d_m[d];
  #endif //OPS_MPI
  int base9 = 1 * 
  (start[0] * args[9].stencil->stride[0] - args[9].dat->base[0] - d_m[0]);
  base9 = base9 + args[9].dat->size[0] *
  (start[1] * args[9].stencil->stride[1] - args[9].dat->base[1] - d_m[1]);
  base9 = base9 + args[9].dat->size[0] *  args[9].dat->size[1] *
  (start[2] * args[9].stencil->stride[2] - args[9].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[10].dat->d_m[d] + OPS_sub_dat_list[args[10].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[10].dat->d_m[d];
  #endif //OPS_MPI
  int base10 = 1 * 
  (start[0] * args[10].stencil->stride[0] - args[10].dat->base[0] - d_m[0]);
  base10 = base10 + args[10].dat->size[0] *
  (start[1] * args[10].stencil->stride[1] - args[10].dat->base[1] - d_m[1]);
  base10 = base10 + args[10].dat->size[0] *  args[10].dat->size[1] *
  (start[2] * args[10].stencil->stride[2] - args[10].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[11].dat->d_m[d] + OPS_sub_dat_list[args[11].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[11].dat->d_m[d];
  #endif //OPS_MPI
  int base11 = 1 * 
  (start[0] * args[11].stencil->stride[0] - args[11].dat->base[0] - d_m[0]);
  base11 = base11 + args[11].dat->size[0] *
  (start[1] * args[11].stencil->stride[1] - args[11].dat->base[1] - d_m[1]);
  base11 = base11 + args[11].dat->size[0] *  args[11].dat->size[1] *
  (start[2] * args[11].stencil->stride[2] - args[11].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[12].dat->d_m[d] + OPS_sub_dat_list[args[12].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[12].dat->d_m[d];
  #endif //OPS_MPI
  int base12 = 1 * 
  (start[0] * args[12].stencil->stride[0] - args[12].dat->base[0] - d_m[0]);
  base12 = base12 + args[12].dat->size[0] *
  (start[1] * args[12].stencil->stride[1] - args[12].dat->base[1] - d_m[1]);
  base12 = base12 + args[12].dat->size[0] *  args[12].dat->size[1] *
  (start[2] * args[12].stencil->stride[2] - args[12].dat->base[2] - d_m[2]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[13].dat->d_m[d] + OPS_sub_dat_list[args[13].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[13].dat->d_m[d];
  #endif //OPS_MPI
  int base13 = 1 * 
  (start[0] * args[13].stencil->stride[0] - args[13].dat->base[0] - d_m[0]);
  base13 = base13 + args[13].dat->size[0] *
  (start[1] * args[13].stencil->stride[1] - args[13].dat->base[1] - d_m[1]);
  base13 = base13 + args[13].dat->size[0] *  args[13].dat->size[1] *
  (start[2] * args[13].stencil->stride[2] - args[13].dat->base[2] - d_m[2]);


  ops_H_D_exchanges_device(args, 14);
  ops_halo_exchanges(args,14,range);
  ops_H_D_exchanges_device(args, 14);

  ops_timers_core(&c1,&t1);
  OPS_kernels[5].mpi_time += t1-t2;


  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 0, sizeof(cl_mem), (void*) &arg0.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 1, sizeof(cl_mem), (void*) &arg1.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 2, sizeof(cl_mem), (void*) &arg2.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 3, sizeof(cl_mem), (void*) &arg3.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 4, sizeof(cl_mem), (void*) &arg4.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 5, sizeof(cl_mem), (void*) &arg5.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 6, sizeof(cl_mem), (void*) &arg6.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 7, sizeof(cl_mem), (void*) &arg7.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 8, sizeof(cl_mem), (void*) &arg8.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 9, sizeof(cl_mem), (void*) &arg9.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 10, sizeof(cl_mem), (void*) &arg10.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 11, sizeof(cl_mem), (void*) &arg11.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 12, sizeof(cl_mem), (void*) &arg12.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 13, sizeof(cl_mem), (void*) &arg13.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 14, sizeof(cl_double), (void*) &dt ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 15, sizeof(cl_int), (void*) &base0 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 16, sizeof(cl_int), (void*) &base1 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 17, sizeof(cl_int), (void*) &base2 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 18, sizeof(cl_int), (void*) &base3 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 19, sizeof(cl_int), (void*) &base4 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 20, sizeof(cl_int), (void*) &base5 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 21, sizeof(cl_int), (void*) &base6 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 22, sizeof(cl_int), (void*) &base7 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 23, sizeof(cl_int), (void*) &base8 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 24, sizeof(cl_int), (void*) &base9 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 25, sizeof(cl_int), (void*) &base10 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 26, sizeof(cl_int), (void*) &base11 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 27, sizeof(cl_int), (void*) &base12 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 28, sizeof(cl_int), (void*) &base13 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 29, sizeof(cl_int), (void*) &x_size ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 30, sizeof(cl_int), (void*) &y_size ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[5], 31, sizeof(cl_int), (void*) &z_size ));

  //call/enque opencl kernel wrapper function
  clSafeCall( clEnqueueNDRangeKernel(OPS_opencl_core.command_queue, OPS_opencl_core.kernel[5], 3, NULL, globalWorkSize, localWorkSize, 0, NULL, NULL) );
  if (OPS_diags>1) {
    clSafeCall( clFinish(OPS_opencl_core.command_queue) );
  }

  ops_set_dirtybit_device(args, 14);
  ops_set_halo_dirtybit3(&args[4],range);
  ops_set_halo_dirtybit3(&args[8],range);
  ops_set_halo_dirtybit3(&args[11],range);

  //Update kernel record
  ops_timers_core(&c2,&t2);
  OPS_kernels[5].time += t2-t1;
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg2);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg3);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg4);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg5);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg6);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg7);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg8);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg9);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg10);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg11);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg12);
  OPS_kernels[5].transfer += ops_compute_transfer(dim, range, &arg13);
}
// host stub function
void ops_par_loop_calupwindeff_kernel(char const *name, ops_block block,
                                      int dim, int *range, ops_arg arg0,
                                      ops_arg arg1, ops_arg arg2, ops_arg arg3,
                                      ops_arg arg4, ops_arg arg5,
                                      ops_arg arg6) {

  // Timing
  double t1, t2, c1, c2;

  int offs[7][1];
  ops_arg args[7] = {arg0, arg1, arg2, arg3, arg4, arg5, arg6};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 7, range, 11))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(11, "calupwindeff_kernel");
    OPS_kernels[11].count++;
    ops_timers_core(&c1, &t1);
  }

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif

  // compute locally allocated range for the sub-block

  int start[1];
  int end[1];
  int arg_idx[1];

#ifdef OPS_MPI
  if (!sb->owned)
    return;
  for (int n = 0; n < 1; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
    if (end[n] < start[n])
      end[n] = start[n];
  }
#else
  for (int n = 0; n < 1; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif
#ifdef OPS_DEBUG
  ops_register_args(args, "calupwindeff_kernel");
#endif

  offs[0][0] = args[0].stencil->stride[0] * 1; // unit step in x dimension

  offs[1][0] = args[1].stencil->stride[0] * 1; // unit step in x dimension

  offs[2][0] = args[2].stencil->stride[0] * 1; // unit step in x dimension

  offs[3][0] = args[3].stencil->stride[0] * 1; // unit step in x dimension

  offs[4][0] = args[4].stencil->stride[0] * 1; // unit step in x dimension

  offs[5][0] = args[5].stencil->stride[0] * 1; // unit step in x dimension

  offs[6][0] = args[6].stencil->stride[0] * 1; // unit step in x dimension

  int off0_0 = offs[0][0];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int off1_0 = offs[1][0];
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);
  int off2_0 = offs[2][0];
  int dat2 = (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size);
  int off3_0 = offs[3][0];
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);
  int off4_0 = offs[4][0];
  int dat4 = (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size);
  int off5_0 = offs[5][0];
  int dat5 = (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size);
  int off6_0 = offs[6][0];
  int dat6 = (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size);

  // Halo Exchanges
  ops_H_D_exchanges_host(args, 7);
  ops_halo_exchanges(args, 7, range);
  ops_H_D_exchanges_host(args, 7);

#ifdef _OPENMP
  int nthreads = omp_get_max_threads();
#else
  int nthreads = 1;
#endif
  xdim0 = args[0].dat->size[0];
  xdim1 = args[1].dat->size[0];
  xdim2 = args[2].dat->size[0];
  xdim3 = args[3].dat->size[0];
  xdim4 = args[4].dat->size[0];
  xdim5 = args[5].dat->size[0];
  xdim6 = args[6].dat->size[0];

  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[11].mpi_time += t2 - t1;
  }

#pragma omp parallel for
  for (int thr = 0; thr < nthreads; thr++) {

    int x_size = end[0] - start[0];
    char *p_a[7];

    int start_i = start[0] + ((x_size - 1) / nthreads + 1) * thr;
    int finish_i =
        start[0] + MIN(((x_size - 1) / nthreads + 1) * (thr + 1), x_size);

    // get address per thread
    int start0 = start_i;

    // set up initial pointers
    int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[0].dat->d_m[d];
#endif
    int base0 = dat0 * 1 * (start0 * args[0].stencil->stride[0] -
                            args[0].dat->base[0] - d_m[0]);
    p_a[0] = (char *)args[0].data + base0;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[1].dat->d_m[d];
#endif
    int base1 = dat1 * 1 * (start0 * args[1].stencil->stride[0] -
                            args[1].dat->base[0] - d_m[0]);
    p_a[1] = (char *)args[1].data + base1;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[2].dat->d_m[d];
#endif
    int base2 = dat2 * 1 * (start0 * args[2].stencil->stride[0] -
                            args[2].dat->base[0] - d_m[0]);
    p_a[2] = (char *)args[2].data + base2;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[3].dat->d_m[d];
#endif
    int base3 = dat3 * 1 * (start0 * args[3].stencil->stride[0] -
                            args[3].dat->base[0] - d_m[0]);
    p_a[3] = (char *)args[3].data + base3;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[4].dat->d_m[d];
#endif
    int base4 = dat4 * 1 * (start0 * args[4].stencil->stride[0] -
                            args[4].dat->base[0] - d_m[0]);
    p_a[4] = (char *)args[4].data + base4;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[5].dat->d_m[d];
#endif
    int base5 = dat5 * 1 * (start0 * args[5].stencil->stride[0] -
                            args[5].dat->base[0] - d_m[0]);
    p_a[5] = (char *)args[5].data + base5;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[6].dat->d_m[d] + OPS_sub_dat_list[args[6].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[6].dat->d_m[d];
#endif
    int base6 = dat6 * 1 * (start0 * args[6].stencil->stride[0] -
                            args[6].dat->base[0] - d_m[0]);
    p_a[6] = (char *)args[6].data + base6;

    for (int n_x = start_i; n_x < start_i + (finish_i - start_i) / SIMD_VEC;
         n_x++) {
// call kernel function, passing in pointers to data -vectorised
#pragma simd
      for (int i = 0; i < SIMD_VEC; i++) {
        calupwindeff_kernel((const double *)p_a[0] + i * 1 * 3,
                            (const double *)p_a[1] + i * 1 * 3,
                            (const double *)p_a[2] + i * 1 * 3,
                            (const double *)p_a[3] + i * 1 * 3,
                            (const double *)p_a[4] + i * 1 * 3,
                            (const double *)p_a[5] + i * 1 * 9,
                            (double *)p_a[6] + i * 1 * 3);
      }

      // shift pointers to data x direction
      p_a[0] = p_a[0] + (dat0 * off0_0) * SIMD_VEC;
      p_a[1] = p_a[1] + (dat1 * off1_0) * SIMD_VEC;
      p_a[2] = p_a[2] + (dat2 * off2_0) * SIMD_VEC;
      p_a[3] = p_a[3] + (dat3 * off3_0) * SIMD_VEC;
      p_a[4] = p_a[4] + (dat4 * off4_0) * SIMD_VEC;
      p_a[5] = p_a[5] + (dat5 * off5_0) * SIMD_VEC;
      p_a[6] = p_a[6] + (dat6 * off6_0) * SIMD_VEC;
    }

    for (int n_x = start_i + ((finish_i - start_i) / SIMD_VEC) * SIMD_VEC;
         n_x < finish_i; n_x++) {
      // call kernel function, passing in pointers to data - remainder
      calupwindeff_kernel((const double *)p_a[0], (const double *)p_a[1],
                          (const double *)p_a[2], (const double *)p_a[3],
                          (const double *)p_a[4], (const double *)p_a[5],
                          (double *)p_a[6]);

      // shift pointers to data x direction
      p_a[0] = p_a[0] + (dat0 * off0_0);
      p_a[1] = p_a[1] + (dat1 * off1_0);
      p_a[2] = p_a[2] + (dat2 * off2_0);
      p_a[3] = p_a[3] + (dat3 * off3_0);
      p_a[4] = p_a[4] + (dat4 * off4_0);
      p_a[5] = p_a[5] + (dat5 * off5_0);
      p_a[6] = p_a[6] + (dat6 * off6_0);
    }
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[11].time += t1 - t2;
  }

  ops_set_dirtybit_host(args, 7);

  ops_set_halo_dirtybit3(&args[6], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[11].mpi_time += t2 - t1;
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg1);
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg2);
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg4);
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg5);
    OPS_kernels[11].transfer += ops_compute_transfer(dim, start, end, &arg6);
  }
}
// host stub function
void ops_par_loop_poisson_kernel_populate(char const *name, ops_block block,
                                          int dim, int *range, ops_arg arg0,
                                          ops_arg arg1, ops_arg arg2,
                                          ops_arg arg3, ops_arg arg4,
                                          ops_arg arg5) {

  // Timing
  double t1, t2, c1, c2;

  int offs[6][2];
  ops_arg args[6] = {arg0, arg1, arg2, arg3, arg4, arg5};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 6, range, 0))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(0, "poisson_kernel_populate");
    OPS_kernels[0].count++;
    ops_timers_core(&c1, &t1);
  }

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif

  // compute locally allocated range for the sub-block

  int start[2];
  int end[2];
  int arg_idx[2];

#ifdef OPS_MPI
  if (!sb->owned)
    return;
  for (int n = 0; n < 2; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
    if (end[n] < start[n])
      end[n] = start[n];
  }
#else
  for (int n = 0; n < 2; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif
#ifdef OPS_DEBUG
  ops_register_args(args, "poisson_kernel_populate");
#endif

  offs[3][0] = args[3].stencil->stride[0] * 1; // unit step in x dimension
  offs[3][1] =
      off2D(1, &start[0], &end[0], args[3].dat->size, args[3].stencil->stride) -
      offs[3][0];

  offs[4][0] = args[4].stencil->stride[0] * 1; // unit step in x dimension
  offs[4][1] =
      off2D(1, &start[0], &end[0], args[4].dat->size, args[4].stencil->stride) -
      offs[4][0];

  offs[5][0] = args[5].stencil->stride[0] * 1; // unit step in x dimension
  offs[5][1] =
      off2D(1, &start[0], &end[0], args[5].dat->size, args[5].stencil->stride) -
      offs[5][0];

  int off3_0 = offs[3][0];
  int off3_1 = offs[3][1];
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);
  int off4_0 = offs[4][0];
  int off4_1 = offs[4][1];
  int dat4 = (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size);
  int off5_0 = offs[5][0];
  int off5_1 = offs[5][1];
  int dat5 = (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size);

  // Halo Exchanges
  ops_H_D_exchanges_host(args, 6);
  ops_halo_exchanges(args, 6, range);
  ops_H_D_exchanges_host(args, 6);

#ifdef _OPENMP
  int nthreads = omp_get_max_threads();
#else
  int nthreads = 1;
#endif
  xdim3 = args[3].dat->size[0];
  xdim4 = args[4].dat->size[0];
  xdim5 = args[5].dat->size[0];

  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[0].mpi_time += t2 - t1;
  }

#pragma omp parallel for
  for (int thr = 0; thr < nthreads; thr++) {

    int y_size = end[1] - start[1];
    char *p_a[6];

    int start_i = start[1] + ((y_size - 1) / nthreads + 1) * thr;
    int finish_i =
        start[1] + MIN(((y_size - 1) / nthreads + 1) * (thr + 1), y_size);

    // get address per thread
    int start0 = start[0];
    int start1 = start_i;

    int arg_idx[2];
#ifdef OPS_MPI
    arg_idx[0] = sb->decomp_disp[0] + start0;
    arg_idx[1] = sb->decomp_disp[1] + start1;
#else
    arg_idx[0] = start0;
    arg_idx[1] = start1;
#endif
    // set up initial pointers
    int d_m[OPS_MAX_DIM];
    p_a[0] = (char *)args[0].data;

    p_a[1] = (char *)args[1].data;

    p_a[2] = (char *)arg_idx;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[3].dat->d_m[d];
#endif
    int base3 = dat3 * 1 * (start0 * args[3].stencil->stride[0] -
                            args[3].dat->base[0] - d_m[0]);
    base3 = base3 +
            dat3 * args[3].dat->size[0] * (start1 * args[3].stencil->stride[1] -
                                           args[3].dat->base[1] - d_m[1]);
    p_a[3] = (char *)args[3].data + base3;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[4].dat->d_m[d];
#endif
    int base4 = dat4 * 1 * (start0 * args[4].stencil->stride[0] -
                            args[4].dat->base[0] - d_m[0]);
    base4 = base4 +
            dat4 * args[4].dat->size[0] * (start1 * args[4].stencil->stride[1] -
                                           args[4].dat->base[1] - d_m[1]);
    p_a[4] = (char *)args[4].data + base4;

#ifdef OPS_MPI
    for (int d = 0; d < dim; d++)
      d_m[d] =
          args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
#else
    for (int d = 0; d < dim; d++)
      d_m[d] = args[5].dat->d_m[d];
#endif
    int base5 = dat5 * 1 * (start0 * args[5].stencil->stride[0] -
                            args[5].dat->base[0] - d_m[0]);
    base5 = base5 +
            dat5 * args[5].dat->size[0] * (start1 * args[5].stencil->stride[1] -
                                           args[5].dat->base[1] - d_m[1]);
    p_a[5] = (char *)args[5].data + base5;

    for (int n_y = start_i; n_y < finish_i; n_y++) {
      for (int n_x = start[0]; n_x < start[0] + (end[0] - start[0]) / SIMD_VEC;
           n_x++) {
        // call kernel function, passing in pointers to data -vectorised
        for (int i = 0; i < SIMD_VEC; i++) {
          poisson_kernel_populate((int *)p_a[0], (int *)p_a[1], arg_idx,
                                  (double *)p_a[3] + i * 1 * 1,
                                  (double *)p_a[4] + i * 1 * 1,
                                  (double *)p_a[5] + i * 1 * 1);

          arg_idx[0]++;
        }

        // shift pointers to data x direction
        p_a[3] = p_a[3] + (dat3 * off3_0) * SIMD_VEC;
        p_a[4] = p_a[4] + (dat4 * off4_0) * SIMD_VEC;
        p_a[5] = p_a[5] + (dat5 * off5_0) * SIMD_VEC;
      }

      for (int n_x = start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
           n_x < end[0]; n_x++) {
        // call kernel function, passing in pointers to data - remainder
        poisson_kernel_populate((int *)p_a[0], (int *)p_a[1], arg_idx,
                                (double *)p_a[3], (double *)p_a[4],
                                (double *)p_a[5]);

        // shift pointers to data x direction
        p_a[3] = p_a[3] + (dat3 * off3_0);
        p_a[4] = p_a[4] + (dat4 * off4_0);
        p_a[5] = p_a[5] + (dat5 * off5_0);
        arg_idx[0]++;
      }

      // shift pointers to data y direction
      p_a[3] = p_a[3] + (dat3 * off3_1);
      p_a[4] = p_a[4] + (dat4 * off4_1);
      p_a[5] = p_a[5] + (dat5 * off5_1);
#ifdef OPS_MPI
      arg_idx[0] = sb->decomp_disp[0] + start0;
#else
      arg_idx[0] = start0;
#endif
      arg_idx[1]++;
    }
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[0].time += t1 - t2;
  }

  ops_set_dirtybit_host(args, 6);

  ops_set_halo_dirtybit3(&args[3], range);
  ops_set_halo_dirtybit3(&args[4], range);
  ops_set_halo_dirtybit3(&args[5], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c2, &t2);
    OPS_kernels[0].mpi_time += t2 - t1;
    OPS_kernels[0].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[0].transfer += ops_compute_transfer(dim, start, end, &arg4);
    OPS_kernels[0].transfer += ops_compute_transfer(dim, start, end, &arg5);
  }
}
// host stub function
void ops_par_loop_reset_field_kernel1(char const *name, ops_block block,
                                      int dim, int *range, ops_arg arg0,
                                      ops_arg arg1, ops_arg arg2,
                                      ops_arg arg3) {

  ops_arg args[4] = {arg0, arg1, arg2, arg3};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 4, range, 139))
    return;
#endif

  ops_timing_realloc(139, "reset_field_kernel1");
  OPS_kernels[139].count++;

  // compute localy allocated range for the sub-block
  int start[3];
  int end[3];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned)
    return;
  for (int n = 0; n < 3; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
  }
#else
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);
  int z_size = MAX(0, end[2] - start[2]);

  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0];
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0];
  ydim3 = args[3].dat->size[1];

  // Timing
  double t1, t2, c1, c2;
  ops_timers_core(&c2, &t2);

  if (xdim0 != xdim0_reset_field_kernel1_h ||
      ydim0 != ydim0_reset_field_kernel1_h ||
      xdim1 != xdim1_reset_field_kernel1_h ||
      ydim1 != ydim1_reset_field_kernel1_h ||
      xdim2 != xdim2_reset_field_kernel1_h ||
      ydim2 != ydim2_reset_field_kernel1_h ||
      xdim3 != xdim3_reset_field_kernel1_h ||
      ydim3 != ydim3_reset_field_kernel1_h) {
    xdim0_reset_field_kernel1 = xdim0;
    xdim0_reset_field_kernel1_h = xdim0;
    ydim0_reset_field_kernel1 = ydim0;
    ydim0_reset_field_kernel1_h = ydim0;
    xdim1_reset_field_kernel1 = xdim1;
    xdim1_reset_field_kernel1_h = xdim1;
    ydim1_reset_field_kernel1 = ydim1;
    ydim1_reset_field_kernel1_h = ydim1;
    xdim2_reset_field_kernel1 = xdim2;
    xdim2_reset_field_kernel1_h = xdim2;
    ydim2_reset_field_kernel1 = ydim2;
    ydim2_reset_field_kernel1_h = ydim2;
    xdim3_reset_field_kernel1 = xdim3;
    xdim3_reset_field_kernel1_h = xdim3;
    ydim3_reset_field_kernel1 = ydim3;
    ydim3_reset_field_kernel1_h = ydim3;
  }

  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);
  int dat2 = (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size);
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);

  // set up initial pointers
  int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[0].dat->d_m[d];
#endif
  int base0 = dat0 * 1 * (start[0] * args[0].stencil->stride[0] -
                          args[0].dat->base[0] - d_m[0]);
  base0 = base0 +
          dat0 * args[0].dat->size[0] * (start[1] * args[0].stencil->stride[1] -
                                         args[0].dat->base[1] - d_m[1]);
  base0 = base0 +
          dat0 * args[0].dat->size[0] * args[0].dat->size[1] *
              (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] -
               d_m[2]);
  double *p_a0 = (double *)((char *)args[0].data + base0);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[1].dat->d_m[d];
#endif
  int base1 = dat1 * 1 * (start[0] * args[1].stencil->stride[0] -
                          args[1].dat->base[0] - d_m[0]);
  base1 = base1 +
          dat1 * args[1].dat->size[0] * (start[1] * args[1].stencil->stride[1] -
                                         args[1].dat->base[1] - d_m[1]);
  base1 = base1 +
          dat1 * args[1].dat->size[0] * args[1].dat->size[1] *
              (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] -
               d_m[2]);
  double *p_a1 = (double *)((char *)args[1].data + base1);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[2].dat->d_m[d];
#endif
  int base2 = dat2 * 1 * (start[0] * args[2].stencil->stride[0] -
                          args[2].dat->base[0] - d_m[0]);
  base2 = base2 +
          dat2 * args[2].dat->size[0] * (start[1] * args[2].stencil->stride[1] -
                                         args[2].dat->base[1] - d_m[1]);
  base2 = base2 +
          dat2 * args[2].dat->size[0] * args[2].dat->size[1] *
              (start[2] * args[2].stencil->stride[2] - args[2].dat->base[2] -
               d_m[2]);
  double *p_a2 = (double *)((char *)args[2].data + base2);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[3].dat->d_m[d];
#endif
  int base3 = dat3 * 1 * (start[0] * args[3].stencil->stride[0] -
                          args[3].dat->base[0] - d_m[0]);
  base3 = base3 +
          dat3 * args[3].dat->size[0] * (start[1] * args[3].stencil->stride[1] -
                                         args[3].dat->base[1] - d_m[1]);
  base3 = base3 +
          dat3 * args[3].dat->size[0] * args[3].dat->size[1] *
              (start[2] * args[3].stencil->stride[2] - args[3].dat->base[2] -
               d_m[2]);
  double *p_a3 = (double *)((char *)args[3].data + base3);

  ops_H_D_exchanges_host(args, 4);
  ops_halo_exchanges(args, 4, range);

  ops_timers_core(&c1, &t1);
  OPS_kernels[139].mpi_time += t1 - t2;

  reset_field_kernel1_c_wrapper(p_a0, p_a1, p_a2, p_a3, x_size, y_size, z_size);

  ops_timers_core(&c2, &t2);
  OPS_kernels[139].time += t2 - t1;
  ops_set_dirtybit_host(args, 4);
  ops_set_halo_dirtybit3(&args[0], range);
  ops_set_halo_dirtybit3(&args[2], range);

  // Update kernel record
  OPS_kernels[139].transfer += ops_compute_transfer(dim, start, end, &arg0);
  OPS_kernels[139].transfer += ops_compute_transfer(dim, start, end, &arg1);
  OPS_kernels[139].transfer += ops_compute_transfer(dim, start, end, &arg2);
  OPS_kernels[139].transfer += ops_compute_transfer(dim, start, end, &arg3);
}
// host stub function
void ops_par_loop_update_halo_kernel1_b1(char const *name, ops_block Block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3, ops_arg arg4, ops_arg arg5, ops_arg arg6, ops_arg arg7) {

  ops_arg args[8] = { arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7};


  ops_timing_realloc(42,"update_halo_kernel1_b1");
  OPS_kernels[42].count++;

  //compute localy allocated range for the sub-block
  int start[3];
  int end[3];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);
  int z_size = MAX(0,end[2]-start[2]);


  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0]*args[2].dat->dim;
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0]*args[3].dat->dim;
  ydim3 = args[3].dat->size[1];
  xdim4 = args[4].dat->size[0]*args[4].dat->dim;
  ydim4 = args[4].dat->size[1];
  xdim5 = args[5].dat->size[0]*args[5].dat->dim;
  ydim5 = args[5].dat->size[1];
  xdim6 = args[6].dat->size[0]*args[6].dat->dim;
  ydim6 = args[6].dat->size[1];

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  if (xdim0 != xdim0_update_halo_kernel1_b1_h || ydim0 != ydim0_update_halo_kernel1_b1_h || xdim1 != xdim1_update_halo_kernel1_b1_h || ydim1 != ydim1_update_halo_kernel1_b1_h || xdim2 != xdim2_update_halo_kernel1_b1_h || ydim2 != ydim2_update_halo_kernel1_b1_h || xdim3 != xdim3_update_halo_kernel1_b1_h || ydim3 != ydim3_update_halo_kernel1_b1_h || xdim4 != xdim4_update_halo_kernel1_b1_h || ydim4 != ydim4_update_halo_kernel1_b1_h || xdim5 != xdim5_update_halo_kernel1_b1_h || ydim5 != ydim5_update_halo_kernel1_b1_h || xdim6 != xdim6_update_halo_kernel1_b1_h || ydim6 != ydim6_update_halo_kernel1_b1_h) {
    xdim0_update_halo_kernel1_b1 = xdim0;
    xdim0_update_halo_kernel1_b1_h = xdim0;
    ydim0_update_halo_kernel1_b1 = ydim0;
    ydim0_update_halo_kernel1_b1_h = ydim0;
    xdim1_update_halo_kernel1_b1 = xdim1;
    xdim1_update_halo_kernel1_b1_h = xdim1;
    ydim1_update_halo_kernel1_b1 = ydim1;
    ydim1_update_halo_kernel1_b1_h = ydim1;
    xdim2_update_halo_kernel1_b1 = xdim2;
    xdim2_update_halo_kernel1_b1_h = xdim2;
    ydim2_update_halo_kernel1_b1 = ydim2;
    ydim2_update_halo_kernel1_b1_h = ydim2;
    xdim3_update_halo_kernel1_b1 = xdim3;
    xdim3_update_halo_kernel1_b1_h = xdim3;
    ydim3_update_halo_kernel1_b1 = ydim3;
    ydim3_update_halo_kernel1_b1_h = ydim3;
    xdim4_update_halo_kernel1_b1 = xdim4;
    xdim4_update_halo_kernel1_b1_h = xdim4;
    ydim4_update_halo_kernel1_b1 = ydim4;
    ydim4_update_halo_kernel1_b1_h = ydim4;
    xdim5_update_halo_kernel1_b1 = xdim5;
    xdim5_update_halo_kernel1_b1_h = xdim5;
    ydim5_update_halo_kernel1_b1 = ydim5;
    ydim5_update_halo_kernel1_b1_h = ydim5;
    xdim6_update_halo_kernel1_b1 = xdim6;
    xdim6_update_halo_kernel1_b1_h = xdim6;
    ydim6_update_halo_kernel1_b1 = ydim6;
    ydim6_update_halo_kernel1_b1_h = ydim6;
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;
  int dat4 = args[4].dat->elem_size;
  int dat5 = args[5].dat->elem_size;
  int dat6 = args[6].dat->elem_size;

  int *arg7h = (int *)arg7.data;
  //Upload large globals
  int consts_bytes = 0;
  consts_bytes += ROUND_UP(NUM_FIELDS*sizeof(int));
  reallocConstArrays(consts_bytes);
  consts_bytes = 0;
  args[7].data = OPS_consts_h + consts_bytes;
  args[7].data_d = OPS_consts_d + consts_bytes;
  for (int d=0; d<NUM_FIELDS; d++) ((int *)args[7].data)[d] = arg7h[d];
  consts_bytes += ROUND_UP(NUM_FIELDS*sizeof(int));
  mvConstArraysToDevice(consts_bytes);

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = dat0 * 1 * 
    (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    args[0].dat->size[1] *
    (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
  #else
  double *p_a0 = (double *)((char *)args[0].data + base0);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = dat1 * 1 * 
    (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    args[1].dat->size[1] *
    (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
  #else
  double *p_a1 = (double *)((char *)args[1].data + base1);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d];
  #endif //OPS_MPI
  int base2 = dat2 * 1 * 
    (start[0] * args[2].stencil->stride[0] - args[2].dat->base[0] - d_m[0]);
  base2 = base2+ dat2 *
    args[2].dat->size[0] *
    (start[1] * args[2].stencil->stride[1] - args[2].dat->base[1] - d_m[1]);
  base2 = base2+ dat2 *
    args[2].dat->size[0] *
    args[2].dat->size[1] *
    (start[2] * args[2].stencil->stride[2] - args[2].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a2 = (double *)((char *)args[2].data_d + base2);
  #else
  double *p_a2 = (double *)((char *)args[2].data + base2);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d];
  #endif //OPS_MPI
  int base3 = dat3 * 1 * 
    (start[0] * args[3].stencil->stride[0] - args[3].dat->base[0] - d_m[0]);
  base3 = base3+ dat3 *
    args[3].dat->size[0] *
    (start[1] * args[3].stencil->stride[1] - args[3].dat->base[1] - d_m[1]);
  base3 = base3+ dat3 *
    args[3].dat->size[0] *
    args[3].dat->size[1] *
    (start[2] * args[3].stencil->stride[2] - args[3].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a3 = (double *)((char *)args[3].data_d + base3);
  #else
  double *p_a3 = (double *)((char *)args[3].data + base3);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d];
  #endif //OPS_MPI
  int base4 = dat4 * 1 * 
    (start[0] * args[4].stencil->stride[0] - args[4].dat->base[0] - d_m[0]);
  base4 = base4+ dat4 *
    args[4].dat->size[0] *
    (start[1] * args[4].stencil->stride[1] - args[4].dat->base[1] - d_m[1]);
  base4 = base4+ dat4 *
    args[4].dat->size[0] *
    args[4].dat->size[1] *
    (start[2] * args[4].stencil->stride[2] - args[4].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a4 = (double *)((char *)args[4].data_d + base4);
  #else
  double *p_a4 = (double *)((char *)args[4].data + base4);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d];
  #endif //OPS_MPI
  int base5 = dat5 * 1 * 
    (start[0] * args[5].stencil->stride[0] - args[5].dat->base[0] - d_m[0]);
  base5 = base5+ dat5 *
    args[5].dat->size[0] *
    (start[1] * args[5].stencil->stride[1] - args[5].dat->base[1] - d_m[1]);
  base5 = base5+ dat5 *
    args[5].dat->size[0] *
    args[5].dat->size[1] *
    (start[2] * args[5].stencil->stride[2] - args[5].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a5 = (double *)((char *)args[5].data_d + base5);
  #else
  double *p_a5 = (double *)((char *)args[5].data + base5);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d] + OPS_sub_dat_list[args[6].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d];
  #endif //OPS_MPI
  int base6 = dat6 * 1 * 
    (start[0] * args[6].stencil->stride[0] - args[6].dat->base[0] - d_m[0]);
  base6 = base6+ dat6 *
    args[6].dat->size[0] *
    (start[1] * args[6].stencil->stride[1] - args[6].dat->base[1] - d_m[1]);
  base6 = base6+ dat6 *
    args[6].dat->size[0] *
    args[6].dat->size[1] *
    (start[2] * args[6].stencil->stride[2] - args[6].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a6 = (double *)((char *)args[6].data_d + base6);
  #else
  double *p_a6 = (double *)((char *)args[6].data + base6);
  #endif

  #ifdef OPS_GPU
  int *p_a7 = (int *)args[7].data_d;
  #else
  int *p_a7 = arg7h;
  #endif

  #ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 8);
  #else
  ops_H_D_exchanges_host(args, 8);
  #endif
  ops_halo_exchanges(args,8,range);

  ops_timers_core(&c1,&t1);
  OPS_kernels[42].mpi_time += t1-t2;

  update_halo_kernel1_b1_c_wrapper(
    p_a0,
    p_a1,
    p_a2,
    p_a3,
    p_a4,
    p_a5,
    p_a6,
    p_a7,
    x_size, y_size, z_size);

  ops_timers_core(&c2,&t2);
  OPS_kernels[42].time += t2-t1;
  #ifdef OPS_GPU
  ops_set_dirtybit_device(args, 8);
  #else
  ops_set_dirtybit_host(args, 8);
  #endif
  ops_set_halo_dirtybit3(&args[0],range);
  ops_set_halo_dirtybit3(&args[1],range);
  ops_set_halo_dirtybit3(&args[2],range);
  ops_set_halo_dirtybit3(&args[3],range);
  ops_set_halo_dirtybit3(&args[4],range);
  ops_set_halo_dirtybit3(&args[5],range);
  ops_set_halo_dirtybit3(&args[6],range);

  //Update kernel record
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg2);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg3);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg4);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg5);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, range, &arg6);
}
// host stub function
void ops_par_loop_advec_mom_kernel_x2(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3) {
  ops_arg args[4] = { arg0, arg1, arg2, arg3};


  #ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args,4,range,17)) return;
  #endif

  ops_timing_realloc(17,"advec_mom_kernel_x2");
  OPS_kernels[17].count++;

  //compute locally allocated range for the sub-block
  int start[2];
  int end[2];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<2; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<2; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);


  int xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  int xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  int xdim2 = args[2].dat->size[0]*args[2].dat->dim;
  int xdim3 = args[3].dat->size[0]*args[3].dat->dim;

  //build opencl kernel if not already built

  buildOpenCLKernels_advec_mom_kernel_x2(
  xdim0,xdim1,xdim2,xdim3);

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  //set up OpenCL thread blocks
  size_t globalWorkSize[3] = {((x_size-1)/OPS_block_size_x+ 1)*OPS_block_size_x, ((y_size-1)/OPS_block_size_y + 1)*OPS_block_size_y, 1};
  size_t localWorkSize[3] =  {OPS_block_size_x,OPS_block_size_y,1};





  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;
  int dat2 = args[2].dat->elem_size;
  int dat3 = args[3].dat->elem_size;

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = 1 * 
  (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0 + args[0].dat->size[0] *
  (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = 1 * 
  (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1 + args[1].dat->size[0] *
  (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d];
  #endif //OPS_MPI
  int base2 = 1 * 
  (start[0] * args[2].stencil->stride[0] - args[2].dat->base[0] - d_m[0]);
  base2 = base2 + args[2].dat->size[0] *
  (start[1] * args[2].stencil->stride[1] - args[2].dat->base[1] - d_m[1]);

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d];
  #endif //OPS_MPI
  int base3 = 1 * 
  (start[0] * args[3].stencil->stride[0] - args[3].dat->base[0] - d_m[0]);
  base3 = base3 + args[3].dat->size[0] *
  (start[1] * args[3].stencil->stride[1] - args[3].dat->base[1] - d_m[1]);


  ops_H_D_exchanges_device(args, 4);
  ops_halo_exchanges(args,4,range);
  ops_H_D_exchanges_device(args, 4);

  ops_timers_core(&c1,&t1);
  OPS_kernels[17].mpi_time += t1-t2;


  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 0, sizeof(cl_mem), (void*) &arg0.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 1, sizeof(cl_mem), (void*) &arg1.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 2, sizeof(cl_mem), (void*) &arg2.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 3, sizeof(cl_mem), (void*) &arg3.data_d ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 4, sizeof(cl_int), (void*) &base0 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 5, sizeof(cl_int), (void*) &base1 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 6, sizeof(cl_int), (void*) &base2 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 7, sizeof(cl_int), (void*) &base3 ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 8, sizeof(cl_int), (void*) &x_size ));
  clSafeCall( clSetKernelArg(OPS_opencl_core.kernel[17], 9, sizeof(cl_int), (void*) &y_size ));

  //call/enque opencl kernel wrapper function
  clSafeCall( clEnqueueNDRangeKernel(OPS_opencl_core.command_queue, OPS_opencl_core.kernel[17], 3, NULL, globalWorkSize, localWorkSize, 0, NULL, NULL) );
  if (OPS_diags>1) {
    clSafeCall( clFinish(OPS_opencl_core.command_queue) );
  }

  ops_set_dirtybit_device(args, 4);
  ops_set_halo_dirtybit3(&args[0],range);
  ops_set_halo_dirtybit3(&args[1],range);

  //Update kernel record
  ops_timers_core(&c2,&t2);
  OPS_kernels[17].time += t2-t1;
  OPS_kernels[17].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[17].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[17].transfer += ops_compute_transfer(dim, range, &arg2);
  OPS_kernels[17].transfer += ops_compute_transfer(dim, range, &arg3);
}
// host stub function
void ops_par_loop_update_halo_kernel2_xvel_plus_4_back(char const *name, ops_block Block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2) {

  ops_arg args[3] = { arg0, arg1, arg2};


  ops_timing_realloc(61,"update_halo_kernel2_xvel_plus_4_back");
  OPS_kernels[61].count++;

  //compute localy allocated range for the sub-block
  int start[3];
  int end[3];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);
  int z_size = MAX(0,end[2]-start[2]);


  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  ydim1 = args[1].dat->size[1];

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  if (xdim0 != xdim0_update_halo_kernel2_xvel_plus_4_back_h || ydim0 != ydim0_update_halo_kernel2_xvel_plus_4_back_h || xdim1 != xdim1_update_halo_kernel2_xvel_plus_4_back_h || ydim1 != ydim1_update_halo_kernel2_xvel_plus_4_back_h) {
    xdim0_update_halo_kernel2_xvel_plus_4_back = xdim0;
    xdim0_update_halo_kernel2_xvel_plus_4_back_h = xdim0;
    ydim0_update_halo_kernel2_xvel_plus_4_back = ydim0;
    ydim0_update_halo_kernel2_xvel_plus_4_back_h = ydim0;
    xdim1_update_halo_kernel2_xvel_plus_4_back = xdim1;
    xdim1_update_halo_kernel2_xvel_plus_4_back_h = xdim1;
    ydim1_update_halo_kernel2_xvel_plus_4_back = ydim1;
    ydim1_update_halo_kernel2_xvel_plus_4_back_h = ydim1;
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;

  int *arg2h = (int *)arg2.data;
  //Upload large globals
  int consts_bytes = 0;
  consts_bytes += ROUND_UP(NUM_FIELDS*sizeof(int));
  reallocConstArrays(consts_bytes);
  consts_bytes = 0;
  args[2].data = OPS_consts_h + consts_bytes;
  args[2].data_d = OPS_consts_d + consts_bytes;
  for (int d=0; d<NUM_FIELDS; d++) ((int *)args[2].data)[d] = arg2h[d];
  consts_bytes += ROUND_UP(NUM_FIELDS*sizeof(int));
  mvConstArraysToDevice(consts_bytes);

  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = dat0 * 1 * 
    (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    args[0].dat->size[1] *
    (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
  #else
  double *p_a0 = (double *)((char *)args[0].data + base0);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = dat1 * 1 * 
    (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    args[1].dat->size[1] *
    (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
  #else
  double *p_a1 = (double *)((char *)args[1].data + base1);
  #endif

  #ifdef OPS_GPU
  int *p_a2 = (int *)args[2].data_d;
  #else
  int *p_a2 = arg2h;
  #endif

  #ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 3);
  #else
  ops_H_D_exchanges_host(args, 3);
  #endif
  ops_halo_exchanges(args,3,range);

  ops_timers_core(&c1,&t1);
  OPS_kernels[61].mpi_time += t1-t2;

  update_halo_kernel2_xvel_plus_4_back_c_wrapper(
    p_a0,
    p_a1,
    p_a2,
    x_size, y_size, z_size);

  ops_timers_core(&c2,&t2);
  OPS_kernels[61].time += t2-t1;
  #ifdef OPS_GPU
  ops_set_dirtybit_device(args, 3);
  #else
  ops_set_dirtybit_host(args, 3);
  #endif
  ops_set_halo_dirtybit3(&args[0],range);
  ops_set_halo_dirtybit3(&args[1],range);

  //Update kernel record
  OPS_kernels[61].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[61].transfer += ops_compute_transfer(dim, range, &arg1);
}
// host stub function
void ops_par_loop_PdV_kernel_nopredict(
    char const *name, ops_block block, int dim, int *range, ops_arg arg0,
    ops_arg arg1, ops_arg arg2, ops_arg arg3, ops_arg arg4, ops_arg arg5,
    ops_arg arg6, ops_arg arg7, ops_arg arg8, ops_arg arg9, ops_arg arg10,
    ops_arg arg11, ops_arg arg12, ops_arg arg13, ops_arg arg14, ops_arg arg15,
    ops_arg arg16) {

  ops_arg args[17] = {arg0,  arg1,  arg2,  arg3,  arg4,  arg5,
                      arg6,  arg7,  arg8,  arg9,  arg10, arg11,
                      arg12, arg13, arg14, arg15, arg16};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 17, range, 103))
    return;
#endif

  ops_timing_realloc(103, "PdV_kernel_nopredict");
  OPS_kernels[103].count++;

  // compute localy allocated range for the sub-block
  int start[3];
  int end[3];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned)
    return;
  for (int n = 0; n < 3; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
  }
#else
  for (int n = 0; n < 3; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);
  int z_size = MAX(0, end[2] - start[2]);

  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0];
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0];
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0];
  ydim3 = args[3].dat->size[1];
  xdim4 = args[4].dat->size[0];
  ydim4 = args[4].dat->size[1];
  xdim5 = args[5].dat->size[0];
  ydim5 = args[5].dat->size[1];
  xdim6 = args[6].dat->size[0];
  ydim6 = args[6].dat->size[1];
  xdim7 = args[7].dat->size[0];
  ydim7 = args[7].dat->size[1];
  xdim8 = args[8].dat->size[0];
  ydim8 = args[8].dat->size[1];
  xdim9 = args[9].dat->size[0];
  ydim9 = args[9].dat->size[1];
  xdim10 = args[10].dat->size[0];
  ydim10 = args[10].dat->size[1];
  xdim11 = args[11].dat->size[0];
  ydim11 = args[11].dat->size[1];
  xdim12 = args[12].dat->size[0];
  ydim12 = args[12].dat->size[1];
  xdim13 = args[13].dat->size[0];
  ydim13 = args[13].dat->size[1];
  xdim14 = args[14].dat->size[0];
  ydim14 = args[14].dat->size[1];
  xdim15 = args[15].dat->size[0];
  ydim15 = args[15].dat->size[1];
  xdim16 = args[16].dat->size[0];
  ydim16 = args[16].dat->size[1];

  // Timing
  double t1, t2, c1, c2;
  ops_timers_core(&c2, &t2);

  if (xdim0 != xdim0_PdV_kernel_nopredict_h ||
      ydim0 != ydim0_PdV_kernel_nopredict_h ||
      xdim1 != xdim1_PdV_kernel_nopredict_h ||
      ydim1 != ydim1_PdV_kernel_nopredict_h ||
      xdim2 != xdim2_PdV_kernel_nopredict_h ||
      ydim2 != ydim2_PdV_kernel_nopredict_h ||
      xdim3 != xdim3_PdV_kernel_nopredict_h ||
      ydim3 != ydim3_PdV_kernel_nopredict_h ||
      xdim4 != xdim4_PdV_kernel_nopredict_h ||
      ydim4 != ydim4_PdV_kernel_nopredict_h ||
      xdim5 != xdim5_PdV_kernel_nopredict_h ||
      ydim5 != ydim5_PdV_kernel_nopredict_h ||
      xdim6 != xdim6_PdV_kernel_nopredict_h ||
      ydim6 != ydim6_PdV_kernel_nopredict_h ||
      xdim7 != xdim7_PdV_kernel_nopredict_h ||
      ydim7 != ydim7_PdV_kernel_nopredict_h ||
      xdim8 != xdim8_PdV_kernel_nopredict_h ||
      ydim8 != ydim8_PdV_kernel_nopredict_h ||
      xdim9 != xdim9_PdV_kernel_nopredict_h ||
      ydim9 != ydim9_PdV_kernel_nopredict_h ||
      xdim10 != xdim10_PdV_kernel_nopredict_h ||
      ydim10 != ydim10_PdV_kernel_nopredict_h ||
      xdim11 != xdim11_PdV_kernel_nopredict_h ||
      ydim11 != ydim11_PdV_kernel_nopredict_h ||
      xdim12 != xdim12_PdV_kernel_nopredict_h ||
      ydim12 != ydim12_PdV_kernel_nopredict_h ||
      xdim13 != xdim13_PdV_kernel_nopredict_h ||
      ydim13 != ydim13_PdV_kernel_nopredict_h ||
      xdim14 != xdim14_PdV_kernel_nopredict_h ||
      ydim14 != ydim14_PdV_kernel_nopredict_h ||
      xdim15 != xdim15_PdV_kernel_nopredict_h ||
      ydim15 != ydim15_PdV_kernel_nopredict_h ||
      xdim16 != xdim16_PdV_kernel_nopredict_h ||
      ydim16 != ydim16_PdV_kernel_nopredict_h) {
    xdim0_PdV_kernel_nopredict = xdim0;
    xdim0_PdV_kernel_nopredict_h = xdim0;
    ydim0_PdV_kernel_nopredict = ydim0;
    ydim0_PdV_kernel_nopredict_h = ydim0;
    xdim1_PdV_kernel_nopredict = xdim1;
    xdim1_PdV_kernel_nopredict_h = xdim1;
    ydim1_PdV_kernel_nopredict = ydim1;
    ydim1_PdV_kernel_nopredict_h = ydim1;
    xdim2_PdV_kernel_nopredict = xdim2;
    xdim2_PdV_kernel_nopredict_h = xdim2;
    ydim2_PdV_kernel_nopredict = ydim2;
    ydim2_PdV_kernel_nopredict_h = ydim2;
    xdim3_PdV_kernel_nopredict = xdim3;
    xdim3_PdV_kernel_nopredict_h = xdim3;
    ydim3_PdV_kernel_nopredict = ydim3;
    ydim3_PdV_kernel_nopredict_h = ydim3;
    xdim4_PdV_kernel_nopredict = xdim4;
    xdim4_PdV_kernel_nopredict_h = xdim4;
    ydim4_PdV_kernel_nopredict = ydim4;
    ydim4_PdV_kernel_nopredict_h = ydim4;
    xdim5_PdV_kernel_nopredict = xdim5;
    xdim5_PdV_kernel_nopredict_h = xdim5;
    ydim5_PdV_kernel_nopredict = ydim5;
    ydim5_PdV_kernel_nopredict_h = ydim5;
    xdim6_PdV_kernel_nopredict = xdim6;
    xdim6_PdV_kernel_nopredict_h = xdim6;
    ydim6_PdV_kernel_nopredict = ydim6;
    ydim6_PdV_kernel_nopredict_h = ydim6;
    xdim7_PdV_kernel_nopredict = xdim7;
    xdim7_PdV_kernel_nopredict_h = xdim7;
    ydim7_PdV_kernel_nopredict = ydim7;
    ydim7_PdV_kernel_nopredict_h = ydim7;
    xdim8_PdV_kernel_nopredict = xdim8;
    xdim8_PdV_kernel_nopredict_h = xdim8;
    ydim8_PdV_kernel_nopredict = ydim8;
    ydim8_PdV_kernel_nopredict_h = ydim8;
    xdim9_PdV_kernel_nopredict = xdim9;
    xdim9_PdV_kernel_nopredict_h = xdim9;
    ydim9_PdV_kernel_nopredict = ydim9;
    ydim9_PdV_kernel_nopredict_h = ydim9;
    xdim10_PdV_kernel_nopredict = xdim10;
    xdim10_PdV_kernel_nopredict_h = xdim10;
    ydim10_PdV_kernel_nopredict = ydim10;
    ydim10_PdV_kernel_nopredict_h = ydim10;
    xdim11_PdV_kernel_nopredict = xdim11;
    xdim11_PdV_kernel_nopredict_h = xdim11;
    ydim11_PdV_kernel_nopredict = ydim11;
    ydim11_PdV_kernel_nopredict_h = ydim11;
    xdim12_PdV_kernel_nopredict = xdim12;
    xdim12_PdV_kernel_nopredict_h = xdim12;
    ydim12_PdV_kernel_nopredict = ydim12;
    ydim12_PdV_kernel_nopredict_h = ydim12;
    xdim13_PdV_kernel_nopredict = xdim13;
    xdim13_PdV_kernel_nopredict_h = xdim13;
    ydim13_PdV_kernel_nopredict = ydim13;
    ydim13_PdV_kernel_nopredict_h = ydim13;
    xdim14_PdV_kernel_nopredict = xdim14;
    xdim14_PdV_kernel_nopredict_h = xdim14;
    ydim14_PdV_kernel_nopredict = ydim14;
    ydim14_PdV_kernel_nopredict_h = ydim14;
    xdim15_PdV_kernel_nopredict = xdim15;
    xdim15_PdV_kernel_nopredict_h = xdim15;
    ydim15_PdV_kernel_nopredict = ydim15;
    ydim15_PdV_kernel_nopredict_h = ydim15;
    xdim16_PdV_kernel_nopredict = xdim16;
    xdim16_PdV_kernel_nopredict_h = xdim16;
    ydim16_PdV_kernel_nopredict = ydim16;
    ydim16_PdV_kernel_nopredict_h = ydim16;
  }

  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);
  int dat2 = (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size);
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);
  int dat4 = (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size);
  int dat5 = (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size);
  int dat6 = (OPS_soa ? args[6].dat->type_size : args[6].dat->elem_size);
  int dat7 = (OPS_soa ? args[7].dat->type_size : args[7].dat->elem_size);
  int dat8 = (OPS_soa ? args[8].dat->type_size : args[8].dat->elem_size);
  int dat9 = (OPS_soa ? args[9].dat->type_size : args[9].dat->elem_size);
  int dat10 = (OPS_soa ? args[10].dat->type_size : args[10].dat->elem_size);
  int dat11 = (OPS_soa ? args[11].dat->type_size : args[11].dat->elem_size);
  int dat12 = (OPS_soa ? args[12].dat->type_size : args[12].dat->elem_size);
  int dat13 = (OPS_soa ? args[13].dat->type_size : args[13].dat->elem_size);
  int dat14 = (OPS_soa ? args[14].dat->type_size : args[14].dat->elem_size);
  int dat15 = (OPS_soa ? args[15].dat->type_size : args[15].dat->elem_size);
  int dat16 = (OPS_soa ? args[16].dat->type_size : args[16].dat->elem_size);

  // set up initial pointers
  int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[0].dat->d_m[d];
#endif
  int base0 = dat0 * 1 * (start[0] * args[0].stencil->stride[0] -
                          args[0].dat->base[0] - d_m[0]);
  base0 = base0 +
          dat0 * args[0].dat->size[0] * (start[1] * args[0].stencil->stride[1] -
                                         args[0].dat->base[1] - d_m[1]);
  base0 = base0 +
          dat0 * args[0].dat->size[0] * args[0].dat->size[1] *
              (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] -
               d_m[2]);
  double *p_a0 = (double *)((char *)args[0].data + base0);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[1].dat->d_m[d];
#endif
  int base1 = dat1 * 1 * (start[0] * args[1].stencil->stride[0] -
                          args[1].dat->base[0] - d_m[0]);
  base1 = base1 +
          dat1 * args[1].dat->size[0] * (start[1] * args[1].stencil->stride[1] -
                                         args[1].dat->base[1] - d_m[1]);
  base1 = base1 +
          dat1 * args[1].dat->size[0] * args[1].dat->size[1] *
              (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] -
               d_m[2]);
  double *p_a1 = (double *)((char *)args[1].data + base1);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[2].dat->d_m[d];
#endif
  int base2 = dat2 * 1 * (start[0] * args[2].stencil->stride[0] -
                          args[2].dat->base[0] - d_m[0]);
  base2 = base2 +
          dat2 * args[2].dat->size[0] * (start[1] * args[2].stencil->stride[1] -
                                         args[2].dat->base[1] - d_m[1]);
  base2 = base2 +
          dat2 * args[2].dat->size[0] * args[2].dat->size[1] *
              (start[2] * args[2].stencil->stride[2] - args[2].dat->base[2] -
               d_m[2]);
  double *p_a2 = (double *)((char *)args[2].data + base2);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[3].dat->d_m[d];
#endif
  int base3 = dat3 * 1 * (start[0] * args[3].stencil->stride[0] -
                          args[3].dat->base[0] - d_m[0]);
  base3 = base3 +
          dat3 * args[3].dat->size[0] * (start[1] * args[3].stencil->stride[1] -
                                         args[3].dat->base[1] - d_m[1]);
  base3 = base3 +
          dat3 * args[3].dat->size[0] * args[3].dat->size[1] *
              (start[2] * args[3].stencil->stride[2] - args[3].dat->base[2] -
               d_m[2]);
  double *p_a3 = (double *)((char *)args[3].data + base3);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[4].dat->d_m[d];
#endif
  int base4 = dat4 * 1 * (start[0] * args[4].stencil->stride[0] -
                          args[4].dat->base[0] - d_m[0]);
  base4 = base4 +
          dat4 * args[4].dat->size[0] * (start[1] * args[4].stencil->stride[1] -
                                         args[4].dat->base[1] - d_m[1]);
  base4 = base4 +
          dat4 * args[4].dat->size[0] * args[4].dat->size[1] *
              (start[2] * args[4].stencil->stride[2] - args[4].dat->base[2] -
               d_m[2]);
  double *p_a4 = (double *)((char *)args[4].data + base4);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[5].dat->d_m[d];
#endif
  int base5 = dat5 * 1 * (start[0] * args[5].stencil->stride[0] -
                          args[5].dat->base[0] - d_m[0]);
  base5 = base5 +
          dat5 * args[5].dat->size[0] * (start[1] * args[5].stencil->stride[1] -
                                         args[5].dat->base[1] - d_m[1]);
  base5 = base5 +
          dat5 * args[5].dat->size[0] * args[5].dat->size[1] *
              (start[2] * args[5].stencil->stride[2] - args[5].dat->base[2] -
               d_m[2]);
  double *p_a5 = (double *)((char *)args[5].data + base5);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[6].dat->d_m[d] + OPS_sub_dat_list[args[6].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[6].dat->d_m[d];
#endif
  int base6 = dat6 * 1 * (start[0] * args[6].stencil->stride[0] -
                          args[6].dat->base[0] - d_m[0]);
  base6 = base6 +
          dat6 * args[6].dat->size[0] * (start[1] * args[6].stencil->stride[1] -
                                         args[6].dat->base[1] - d_m[1]);
  base6 = base6 +
          dat6 * args[6].dat->size[0] * args[6].dat->size[1] *
              (start[2] * args[6].stencil->stride[2] - args[6].dat->base[2] -
               d_m[2]);
  double *p_a6 = (double *)((char *)args[6].data + base6);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[7].dat->d_m[d] + OPS_sub_dat_list[args[7].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[7].dat->d_m[d];
#endif
  int base7 = dat7 * 1 * (start[0] * args[7].stencil->stride[0] -
                          args[7].dat->base[0] - d_m[0]);
  base7 = base7 +
          dat7 * args[7].dat->size[0] * (start[1] * args[7].stencil->stride[1] -
                                         args[7].dat->base[1] - d_m[1]);
  base7 = base7 +
          dat7 * args[7].dat->size[0] * args[7].dat->size[1] *
              (start[2] * args[7].stencil->stride[2] - args[7].dat->base[2] -
               d_m[2]);
  double *p_a7 = (double *)((char *)args[7].data + base7);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[8].dat->d_m[d] + OPS_sub_dat_list[args[8].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[8].dat->d_m[d];
#endif
  int base8 = dat8 * 1 * (start[0] * args[8].stencil->stride[0] -
                          args[8].dat->base[0] - d_m[0]);
  base8 = base8 +
          dat8 * args[8].dat->size[0] * (start[1] * args[8].stencil->stride[1] -
                                         args[8].dat->base[1] - d_m[1]);
  base8 = base8 +
          dat8 * args[8].dat->size[0] * args[8].dat->size[1] *
              (start[2] * args[8].stencil->stride[2] - args[8].dat->base[2] -
               d_m[2]);
  double *p_a8 = (double *)((char *)args[8].data + base8);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[9].dat->d_m[d] + OPS_sub_dat_list[args[9].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[9].dat->d_m[d];
#endif
  int base9 = dat9 * 1 * (start[0] * args[9].stencil->stride[0] -
                          args[9].dat->base[0] - d_m[0]);
  base9 = base9 +
          dat9 * args[9].dat->size[0] * (start[1] * args[9].stencil->stride[1] -
                                         args[9].dat->base[1] - d_m[1]);
  base9 = base9 +
          dat9 * args[9].dat->size[0] * args[9].dat->size[1] *
              (start[2] * args[9].stencil->stride[2] - args[9].dat->base[2] -
               d_m[2]);
  double *p_a9 = (double *)((char *)args[9].data + base9);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[10].dat->d_m[d] + OPS_sub_dat_list[args[10].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[10].dat->d_m[d];
#endif
  int base10 = dat10 * 1 * (start[0] * args[10].stencil->stride[0] -
                            args[10].dat->base[0] - d_m[0]);
  base10 =
      base10 +
      dat10 * args[10].dat->size[0] * (start[1] * args[10].stencil->stride[1] -
                                       args[10].dat->base[1] - d_m[1]);
  base10 = base10 +
           dat10 * args[10].dat->size[0] * args[10].dat->size[1] *
               (start[2] * args[10].stencil->stride[2] - args[10].dat->base[2] -
                d_m[2]);
  double *p_a10 = (double *)((char *)args[10].data + base10);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[11].dat->d_m[d] + OPS_sub_dat_list[args[11].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[11].dat->d_m[d];
#endif
  int base11 = dat11 * 1 * (start[0] * args[11].stencil->stride[0] -
                            args[11].dat->base[0] - d_m[0]);
  base11 =
      base11 +
      dat11 * args[11].dat->size[0] * (start[1] * args[11].stencil->stride[1] -
                                       args[11].dat->base[1] - d_m[1]);
  base11 = base11 +
           dat11 * args[11].dat->size[0] * args[11].dat->size[1] *
               (start[2] * args[11].stencil->stride[2] - args[11].dat->base[2] -
                d_m[2]);
  double *p_a11 = (double *)((char *)args[11].data + base11);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[12].dat->d_m[d] + OPS_sub_dat_list[args[12].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[12].dat->d_m[d];
#endif
  int base12 = dat12 * 1 * (start[0] * args[12].stencil->stride[0] -
                            args[12].dat->base[0] - d_m[0]);
  base12 =
      base12 +
      dat12 * args[12].dat->size[0] * (start[1] * args[12].stencil->stride[1] -
                                       args[12].dat->base[1] - d_m[1]);
  base12 = base12 +
           dat12 * args[12].dat->size[0] * args[12].dat->size[1] *
               (start[2] * args[12].stencil->stride[2] - args[12].dat->base[2] -
                d_m[2]);
  double *p_a12 = (double *)((char *)args[12].data + base12);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[13].dat->d_m[d] + OPS_sub_dat_list[args[13].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[13].dat->d_m[d];
#endif
  int base13 = dat13 * 1 * (start[0] * args[13].stencil->stride[0] -
                            args[13].dat->base[0] - d_m[0]);
  base13 =
      base13 +
      dat13 * args[13].dat->size[0] * (start[1] * args[13].stencil->stride[1] -
                                       args[13].dat->base[1] - d_m[1]);
  base13 = base13 +
           dat13 * args[13].dat->size[0] * args[13].dat->size[1] *
               (start[2] * args[13].stencil->stride[2] - args[13].dat->base[2] -
                d_m[2]);
  double *p_a13 = (double *)((char *)args[13].data + base13);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[14].dat->d_m[d] + OPS_sub_dat_list[args[14].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[14].dat->d_m[d];
#endif
  int base14 = dat14 * 1 * (start[0] * args[14].stencil->stride[0] -
                            args[14].dat->base[0] - d_m[0]);
  base14 =
      base14 +
      dat14 * args[14].dat->size[0] * (start[1] * args[14].stencil->stride[1] -
                                       args[14].dat->base[1] - d_m[1]);
  base14 = base14 +
           dat14 * args[14].dat->size[0] * args[14].dat->size[1] *
               (start[2] * args[14].stencil->stride[2] - args[14].dat->base[2] -
                d_m[2]);
  double *p_a14 = (double *)((char *)args[14].data + base14);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[15].dat->d_m[d] + OPS_sub_dat_list[args[15].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[15].dat->d_m[d];
#endif
  int base15 = dat15 * 1 * (start[0] * args[15].stencil->stride[0] -
                            args[15].dat->base[0] - d_m[0]);
  base15 =
      base15 +
      dat15 * args[15].dat->size[0] * (start[1] * args[15].stencil->stride[1] -
                                       args[15].dat->base[1] - d_m[1]);
  base15 = base15 +
           dat15 * args[15].dat->size[0] * args[15].dat->size[1] *
               (start[2] * args[15].stencil->stride[2] - args[15].dat->base[2] -
                d_m[2]);
  double *p_a15 = (double *)((char *)args[15].data + base15);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[16].dat->d_m[d] + OPS_sub_dat_list[args[16].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[16].dat->d_m[d];
#endif
  int base16 = dat16 * 1 * (start[0] * args[16].stencil->stride[0] -
                            args[16].dat->base[0] - d_m[0]);
  base16 =
      base16 +
      dat16 * args[16].dat->size[0] * (start[1] * args[16].stencil->stride[1] -
                                       args[16].dat->base[1] - d_m[1]);
  base16 = base16 +
           dat16 * args[16].dat->size[0] * args[16].dat->size[1] *
               (start[2] * args[16].stencil->stride[2] - args[16].dat->base[2] -
                d_m[2]);
  double *p_a16 = (double *)((char *)args[16].data + base16);

  ops_H_D_exchanges_host(args, 17);
  ops_halo_exchanges(args, 17, range);

  ops_timers_core(&c1, &t1);
  OPS_kernels[103].mpi_time += t1 - t2;

  PdV_kernel_nopredict_c_wrapper(p_a0, p_a1, p_a2, p_a3, p_a4, p_a5, p_a6, p_a7,
                                 p_a8, p_a9, p_a10, p_a11, p_a12, p_a13, p_a14,
                                 p_a15, p_a16, x_size, y_size, z_size);

  ops_timers_core(&c2, &t2);
  OPS_kernels[103].time += t2 - t1;
  ops_set_dirtybit_host(args, 17);
  ops_set_halo_dirtybit3(&args[6], range);
  ops_set_halo_dirtybit3(&args[10], range);
  ops_set_halo_dirtybit3(&args[13], range);

  // Update kernel record
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg0);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg1);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg2);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg3);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg4);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg5);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg6);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg7);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg8);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg9);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg10);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg11);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg12);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg13);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg14);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg15);
  OPS_kernels[103].transfer += ops_compute_transfer(dim, start, end, &arg16);
}
// host stub function
void ops_par_loop_tea_leaf_jacobi_kernel(char const *name, ops_block block,
                                         int dim, int *range, ops_arg arg0,
                                         ops_arg arg1, ops_arg arg2,
                                         ops_arg arg3, ops_arg arg4,
                                         ops_arg arg5, ops_arg arg6,
                                         ops_arg arg7) {

  ops_arg args[8] = {arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 8, range, 42))
    return;
#endif

  ops_timing_realloc(42, "tea_leaf_jacobi_kernel");
  OPS_kernels[42].count++;

  // compute localy allocated range for the sub-block
  int start[2];
  int end[2];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned)
    return;
  for (int n = 0; n < 2; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
  }
#else
  for (int n = 0; n < 2; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);

  xdim0 = args[0].dat->size[0];
  xdim1 = args[1].dat->size[0];
  xdim2 = args[2].dat->size[0];
  xdim3 = args[3].dat->size[0];
  xdim4 = args[4].dat->size[0];

  // Timing
  double t1, t2, c1, c2;
  ops_timers_core(&c2, &t2);

  if (xdim0 != xdim0_tea_leaf_jacobi_kernel_h ||
      xdim1 != xdim1_tea_leaf_jacobi_kernel_h ||
      xdim2 != xdim2_tea_leaf_jacobi_kernel_h ||
      xdim3 != xdim3_tea_leaf_jacobi_kernel_h ||
      xdim4 != xdim4_tea_leaf_jacobi_kernel_h) {
    xdim0_tea_leaf_jacobi_kernel = xdim0;
    xdim0_tea_leaf_jacobi_kernel_h = xdim0;
    xdim1_tea_leaf_jacobi_kernel = xdim1;
    xdim1_tea_leaf_jacobi_kernel_h = xdim1;
    xdim2_tea_leaf_jacobi_kernel = xdim2;
    xdim2_tea_leaf_jacobi_kernel_h = xdim2;
    xdim3_tea_leaf_jacobi_kernel = xdim3;
    xdim3_tea_leaf_jacobi_kernel_h = xdim3;
    xdim4_tea_leaf_jacobi_kernel = xdim4;
    xdim4_tea_leaf_jacobi_kernel_h = xdim4;
  }

  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);
  int dat2 = (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size);
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);
  int dat4 = (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size);

#ifdef OPS_MPI
  double *arg7h =
      (double *)(((ops_reduction)args[7].data)->data +
                 ((ops_reduction)args[7].data)->size * block->index);
#else
  double *arg7h = (double *)(((ops_reduction)args[7].data)->data);
#endif

  // set up initial pointers
  int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[0].dat->d_m[d];
#endif
  int base0 = dat0 * 1 * (start[0] * args[0].stencil->stride[0] -
                          args[0].dat->base[0] - d_m[0]);
  base0 = base0 +
          dat0 * args[0].dat->size[0] * (start[1] * args[0].stencil->stride[1] -
                                         args[0].dat->base[1] - d_m[1]);
  double *p_a0 = (double *)((char *)args[0].data + base0);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[1].dat->d_m[d];
#endif
  int base1 = dat1 * 1 * (start[0] * args[1].stencil->stride[0] -
                          args[1].dat->base[0] - d_m[0]);
  base1 = base1 +
          dat1 * args[1].dat->size[0] * (start[1] * args[1].stencil->stride[1] -
                                         args[1].dat->base[1] - d_m[1]);
  double *p_a1 = (double *)((char *)args[1].data + base1);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[2].dat->d_m[d];
#endif
  int base2 = dat2 * 1 * (start[0] * args[2].stencil->stride[0] -
                          args[2].dat->base[0] - d_m[0]);
  base2 = base2 +
          dat2 * args[2].dat->size[0] * (start[1] * args[2].stencil->stride[1] -
                                         args[2].dat->base[1] - d_m[1]);
  double *p_a2 = (double *)((char *)args[2].data + base2);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[3].dat->d_m[d];
#endif
  int base3 = dat3 * 1 * (start[0] * args[3].stencil->stride[0] -
                          args[3].dat->base[0] - d_m[0]);
  base3 = base3 +
          dat3 * args[3].dat->size[0] * (start[1] * args[3].stencil->stride[1] -
                                         args[3].dat->base[1] - d_m[1]);
  double *p_a3 = (double *)((char *)args[3].data + base3);

#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[4].dat->d_m[d];
#endif
  int base4 = dat4 * 1 * (start[0] * args[4].stencil->stride[0] -
                          args[4].dat->base[0] - d_m[0]);
  base4 = base4 +
          dat4 * args[4].dat->size[0] * (start[1] * args[4].stencil->stride[1] -
                                         args[4].dat->base[1] - d_m[1]);
  double *p_a4 = (double *)((char *)args[4].data + base4);

  double *p_a5 = (double *)args[5].data;
  double *p_a6 = (double *)args[6].data;
  double *p_a7 = arg7h;

  ops_H_D_exchanges_host(args, 8);
  ops_halo_exchanges(args, 8, range);

  ops_timers_core(&c1, &t1);
  OPS_kernels[42].mpi_time += t1 - t2;

  tea_leaf_jacobi_kernel_c_wrapper(p_a0, p_a1, p_a2, p_a3, p_a4, p_a5, p_a6,
                                   p_a7, x_size, y_size);

  ops_timers_core(&c2, &t2);
  OPS_kernels[42].time += t2 - t1;
  ops_set_dirtybit_host(args, 8);
  ops_set_halo_dirtybit3(&args[0], range);

  // Update kernel record
  OPS_kernels[42].transfer += ops_compute_transfer(dim, start, end, &arg0);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, start, end, &arg1);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, start, end, &arg2);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, start, end, &arg3);
  OPS_kernels[42].transfer += ops_compute_transfer(dim, start, end, &arg4);
}
예제 #23
0
// host stub function
void ops_par_loop_save_kernel(char const *name, ops_block block, int dim,
                              int *range, ops_arg arg0, ops_arg arg1,
                              ops_arg arg2, ops_arg arg3, ops_arg arg4,
                              ops_arg arg5) {

  // Timing
  double t1, t2, c1, c2;

  char *p_a[6];
  int offs[6][1];
  ops_arg args[6] = {arg0, arg1, arg2, arg3, arg4, arg5};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 6, range, 1))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(1, "save_kernel");
    OPS_kernels[1].count++;
    ops_timers_core(&c2, &t2);
  }

  // compute locally allocated range for the sub-block
  int start[1];
  int end[1];

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif
#ifdef OPS_DEBUG
  ops_register_args(args, "save_kernel");
#endif

  int arg_idx[1];
  int arg_idx_base[1];
#ifdef OPS_MPI
  if (compute_ranges(args, 6, block, range, start, end, arg_idx) < 0)
    return;
#else  // OPS_MPI
  for (int n = 0; n < 1; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif // OPS_MPI
  for (int n = 0; n < 1; n++) {
    arg_idx_base[n] = arg_idx[n];
  }
  offs[0][0] = args[0].stencil->stride[0] * 1; // unit step in x dimension

  offs[1][0] = args[1].stencil->stride[0] * 1; // unit step in x dimension

  offs[2][0] = args[2].stencil->stride[0] * 1; // unit step in x dimension

  offs[3][0] = args[3].stencil->stride[0] * 1; // unit step in x dimension

  offs[4][0] = args[4].stencil->stride[0] * 1; // unit step in x dimension

  offs[5][0] = args[5].stencil->stride[0] * 1; // unit step in x dimension

  int off0_0 = offs[0][0];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);
  int off1_0 = offs[1][0];
  int dat1 = (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size);
  int off2_0 = offs[2][0];
  int dat2 = (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size);
  int off3_0 = offs[3][0];
  int dat3 = (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size);
  int off4_0 = offs[4][0];
  int dat4 = (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size);
  int off5_0 = offs[5][0];
  int dat5 = (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size);

  // set up initial pointers and exchange halos if necessary
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  p_a[0] = (char *)args[0].data + base0;

  int base1 = args[1].dat->base_offset +
              (OPS_soa ? args[1].dat->type_size : args[1].dat->elem_size) *
                  start[0] * args[1].stencil->stride[0];
  p_a[1] = (char *)args[1].data + base1;

  int base2 = args[2].dat->base_offset +
              (OPS_soa ? args[2].dat->type_size : args[2].dat->elem_size) *
                  start[0] * args[2].stencil->stride[0];
  p_a[2] = (char *)args[2].data + base2;

  int base3 = args[3].dat->base_offset +
              (OPS_soa ? args[3].dat->type_size : args[3].dat->elem_size) *
                  start[0] * args[3].stencil->stride[0];
  p_a[3] = (char *)args[3].data + base3;

  int base4 = args[4].dat->base_offset +
              (OPS_soa ? args[4].dat->type_size : args[4].dat->elem_size) *
                  start[0] * args[4].stencil->stride[0];
  p_a[4] = (char *)args[4].data + base4;

  int base5 = args[5].dat->base_offset +
              (OPS_soa ? args[5].dat->type_size : args[5].dat->elem_size) *
                  start[0] * args[5].stencil->stride[0];
  p_a[5] = (char *)args[5].data + base5;

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];
  xdim1 = args[1].dat->size[0];
  xdim2 = args[2].dat->size[0];
  xdim3 = args[3].dat->size[0];
  xdim4 = args[4].dat->size[0];
  xdim5 = args[5].dat->size[0];

  // Halo Exchanges
  ops_H_D_exchanges_host(args, 6);
  ops_halo_exchanges(args, 6, range);
  ops_H_D_exchanges_host(args, 6);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[1].mpi_time += t1 - t2;
  }

  int n_x;
#pragma novector
  for (n_x = start[0];
       n_x < start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
       n_x += SIMD_VEC) {
// call kernel function, passing in pointers to data -vectorised
#pragma simd
    for (int i = 0; i < SIMD_VEC; i++) {
      save_kernel((double *)p_a[0] + i * 1 * 1, (double *)p_a[1] + i * 1 * 1,
                  (double *)p_a[2] + i * 1 * 1, (double *)p_a[3] + i * 1 * 1,
                  (double *)p_a[4] + i * 1 * 1, (double *)p_a[5] + i * 1 * 1);
    }

    // shift pointers to data x direction
    p_a[0] = p_a[0] + (dat0 * off0_0) * SIMD_VEC;
    p_a[1] = p_a[1] + (dat1 * off1_0) * SIMD_VEC;
    p_a[2] = p_a[2] + (dat2 * off2_0) * SIMD_VEC;
    p_a[3] = p_a[3] + (dat3 * off3_0) * SIMD_VEC;
    p_a[4] = p_a[4] + (dat4 * off4_0) * SIMD_VEC;
    p_a[5] = p_a[5] + (dat5 * off5_0) * SIMD_VEC;
  }

  for (int n_x = start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
       n_x < end[0]; n_x++) {
    // call kernel function, passing in pointers to data - remainder
    save_kernel((double *)p_a[0], (double *)p_a[1], (double *)p_a[2],
                (double *)p_a[3], (double *)p_a[4], (double *)p_a[5]);

    // shift pointers to data x direction
    p_a[0] = p_a[0] + (dat0 * off0_0);
    p_a[1] = p_a[1] + (dat1 * off1_0);
    p_a[2] = p_a[2] + (dat2 * off2_0);
    p_a[3] = p_a[3] + (dat3 * off3_0);
    p_a[4] = p_a[4] + (dat4 * off4_0);
    p_a[5] = p_a[5] + (dat5 * off5_0);
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[1].time += t2 - t1;
  }
  ops_set_dirtybit_host(args, 6);
  ops_set_halo_dirtybit3(&args[0], range);
  ops_set_halo_dirtybit3(&args[1], range);
  ops_set_halo_dirtybit3(&args[2], range);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c1, &t1);
    OPS_kernels[1].mpi_time += t1 - t2;
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg0);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg1);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg2);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg3);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg4);
    OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg5);
  }
}
// host stub function
void ops_par_loop_initialise_chunk_kernel_yy(char const *name, ops_block block,
                                             int dim, int *range, ops_arg arg0,
                                             ops_arg arg1) {

  ops_arg args[2] = {arg0, arg1};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 2, range, 1))
    return;
#endif

  ops_timing_realloc(1, "initialise_chunk_kernel_yy");
  OPS_kernels[1].count++;

  // compute localy allocated range for the sub-block
  int start[2];
  int end[2];
#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned)
    return;
  for (int n = 0; n < 2; n++) {
    start[n] = sb->decomp_disp[n];
    end[n] = sb->decomp_disp[n] + sb->decomp_size[n];
    if (start[n] >= range[2 * n]) {
      start[n] = 0;
    } else {
      start[n] = range[2 * n] - start[n];
    }
    if (sb->id_m[n] == MPI_PROC_NULL && range[2 * n] < 0)
      start[n] = range[2 * n];
    if (end[n] >= range[2 * n + 1]) {
      end[n] = range[2 * n + 1] - sb->decomp_disp[n];
    } else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n] == MPI_PROC_NULL &&
        (range[2 * n + 1] > sb->decomp_disp[n] + sb->decomp_size[n]))
      end[n] += (range[2 * n + 1] - sb->decomp_disp[n] - sb->decomp_size[n]);
  }
#else
  for (int n = 0; n < 2; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
  }
#endif

  int x_size = MAX(0, end[0] - start[0]);
  int y_size = MAX(0, end[1] - start[1]);

  int arg_idx[2];
#ifdef OPS_MPI
  arg_idx[0] = sb->decomp_disp[0] + start[0];
  arg_idx[1] = sb->decomp_disp[1] + start[1];
#else
  arg_idx[0] = start[0];
  arg_idx[1] = start[1];
#endif

  xdim0 = args[0].dat->size[0];

  // Timing
  double t1, t2, c1, c2;
  ops_timers_core(&c2, &t2);

  if (xdim0 != xdim0_initialise_chunk_kernel_yy_h) {
    xdim0_initialise_chunk_kernel_yy = xdim0;
    xdim0_initialise_chunk_kernel_yy_h = xdim0;
  }

  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);

  // set up initial pointers
  int d_m[OPS_MAX_DIM];
#ifdef OPS_MPI
  for (int d = 0; d < dim; d++)
    d_m[d] =
        args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
#else
  for (int d = 0; d < dim; d++)
    d_m[d] = args[0].dat->d_m[d];
#endif
  int base0 = dat0 * 1 * (start[0] * args[0].stencil->stride[0] -
                          args[0].dat->base[0] - d_m[0]);
  base0 = base0 +
          dat0 * args[0].dat->size[0] * (start[1] * args[0].stencil->stride[1] -
                                         args[0].dat->base[1] - d_m[1]);
  int *p_a0 = (int *)((char *)args[0].data + base0);

  int *p_a1 = NULL;

  ops_H_D_exchanges_host(args, 2);
  ops_halo_exchanges(args, 2, range);

  ops_timers_core(&c1, &t1);
  OPS_kernels[1].mpi_time += t1 - t2;

  initialise_chunk_kernel_yy_c_wrapper(p_a0, p_a1, arg_idx[0], arg_idx[1],
                                       x_size, y_size);

  ops_timers_core(&c2, &t2);
  OPS_kernels[1].time += t2 - t1;
  ops_set_dirtybit_host(args, 2);
  ops_set_halo_dirtybit3(&args[0], range);

  // Update kernel record
  OPS_kernels[1].transfer += ops_compute_transfer(dim, start, end, &arg0);
}
// host stub function
void ops_par_loop_update_halo_kernel3_plus_2_a(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2) {

  char *p_a[3];
  int  offs[3][2];
  ops_arg args[3] = { arg0, arg1, arg2};



  #ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args,3,range,68)) return;
  #endif

  ops_timing_realloc(68,"update_halo_kernel3_plus_2_a");
  OPS_kernels[68].count++;

  //compute locally allocated range for the sub-block
  int start[2];
  int end[2];

  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<2; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<2; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI
  #ifdef OPS_DEBUG
  ops_register_args(args, "update_halo_kernel3_plus_2_a");
  #endif

  offs[0][0] = args[0].stencil->stride[0]*1;  //unit step in x dimension
  offs[0][1] = off2D(1, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][0];

  offs[1][0] = args[1].stencil->stride[0]*1;  //unit step in x dimension
  offs[1][1] = off2D(1, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][0];



  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int dat0 = args[0].dat->elem_size;
  int off1_0 = offs[1][0];
  int off1_1 = offs[1][1];
  int dat1 = args[1].dat->elem_size;

  //set up initial pointers and exchange halos if necessary
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = dat0 * 1 * 
    (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  p_a[0] = (char *)args[0].data + base0;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = dat1 * 1 * 
    (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  p_a[1] = (char *)args[1].data + base1;

  p_a[2] = args[2].data;



  ops_H_D_exchanges_host(args, 3);
  ops_halo_exchanges(args,3,range);
  ops_H_D_exchanges_host(args, 3);

  ops_timers_core(&c1,&t1);
  OPS_kernels[68].mpi_time += t1-t2;

  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;

  int n_x;
  for ( int n_y=start[1]; n_y<end[1]; n_y++ ){
    #pragma novector
    for( n_x=start[0]; n_x<start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x+=SIMD_VEC ) {
      //call kernel function, passing in pointers to data -vectorised
      #pragma simd
      for ( int i=0; i<SIMD_VEC; i++ ){
        update_halo_kernel3_plus_2_a(  (double *)p_a[0]+ i*1, (double *)p_a[1]+ i*1, (int *)p_a[2] );

      }

      //shift pointers to data x direction
      p_a[0]= p_a[0] + (dat0 * off0_0)*SIMD_VEC;
      p_a[1]= p_a[1] + (dat1 * off1_0)*SIMD_VEC;
    }

    for ( int n_x=start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x<end[0]; n_x++ ){
      //call kernel function, passing in pointers to data - remainder
      update_halo_kernel3_plus_2_a(  (double *)p_a[0], (double *)p_a[1], (int *)p_a[2] );


      //shift pointers to data x direction
      p_a[0]= p_a[0] + (dat0 * off0_0);
      p_a[1]= p_a[1] + (dat1 * off1_0);
    }

    //shift pointers to data y direction
    p_a[0]= p_a[0] + (dat0 * off0_1);
    p_a[1]= p_a[1] + (dat1 * off1_1);
  }
  ops_timers_core(&c2,&t2);
  OPS_kernels[68].time += t2-t1;
  ops_set_dirtybit_host(args, 3);
  ops_set_halo_dirtybit3(&args[0],range);
  ops_set_halo_dirtybit3(&args[1],range);

  //Update kernel record
  OPS_kernels[68].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[68].transfer += ops_compute_transfer(dim, range, &arg1);
}
// host stub function
void ops_par_loop_advec_mom_kernel_mass_flux_y(char const *name, ops_block Block, int dim, int* range,
 ops_arg arg0, ops_arg arg1) {

  ops_arg args[2] = { arg0, arg1};


  ops_timing_realloc(21,"advec_mom_kernel_mass_flux_y");
  OPS_kernels[21].count++;

  //compute localy allocated range for the sub-block
  int start[3];
  int end[3];
  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI

  int x_size = MAX(0,end[0]-start[0]);
  int y_size = MAX(0,end[1]-start[1]);
  int z_size = MAX(0,end[2]-start[2]);


  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  ydim1 = args[1].dat->size[1];

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  if (xdim0 != xdim0_advec_mom_kernel_mass_flux_y_h || ydim0 != ydim0_advec_mom_kernel_mass_flux_y_h || xdim1 != xdim1_advec_mom_kernel_mass_flux_y_h || ydim1 != ydim1_advec_mom_kernel_mass_flux_y_h) {
    xdim0_advec_mom_kernel_mass_flux_y = xdim0;
    xdim0_advec_mom_kernel_mass_flux_y_h = xdim0;
    ydim0_advec_mom_kernel_mass_flux_y = ydim0;
    ydim0_advec_mom_kernel_mass_flux_y_h = ydim0;
    xdim1_advec_mom_kernel_mass_flux_y = xdim1;
    xdim1_advec_mom_kernel_mass_flux_y_h = xdim1;
    ydim1_advec_mom_kernel_mass_flux_y = ydim1;
    ydim1_advec_mom_kernel_mass_flux_y_h = ydim1;
  }

  int dat0 = args[0].dat->elem_size;
  int dat1 = args[1].dat->elem_size;


  //set up initial pointers
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = dat0 * 1 * 
    (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    args[0].dat->size[1] *
    (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a0 = (double *)((char *)args[0].data_d + base0);
  #else
  double *p_a0 = (double *)((char *)args[0].data + base0);
  #endif

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = dat1 * 1 * 
    (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    args[1].dat->size[1] *
    (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);
  #ifdef OPS_GPU
  double *p_a1 = (double *)((char *)args[1].data_d + base1);
  #else
  double *p_a1 = (double *)((char *)args[1].data + base1);
  #endif


  #ifdef OPS_GPU
  ops_H_D_exchanges_device(args, 2);
  #else
  ops_H_D_exchanges_host(args, 2);
  #endif
  ops_halo_exchanges(args,2,range);

  ops_timers_core(&c1,&t1);
  OPS_kernels[21].mpi_time += t1-t2;

  advec_mom_kernel_mass_flux_y_c_wrapper(
    p_a0,
    p_a1,
    x_size, y_size, z_size);

  ops_timers_core(&c2,&t2);
  OPS_kernels[21].time += t2-t1;
  #ifdef OPS_GPU
  ops_set_dirtybit_device(args, 2);
  #else
  ops_set_dirtybit_host(args, 2);
  #endif
  ops_set_halo_dirtybit3(&args[0],range);

  //Update kernel record
  OPS_kernels[21].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[21].transfer += ops_compute_transfer(dim, range, &arg1);
}
// host stub function
void ops_par_loop_advec_cell_kernel3_ydir(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3,
 ops_arg arg4, ops_arg arg5, ops_arg arg6, ops_arg arg7) {

  char *p_a[8];
  int  offs[8][3];
  ops_arg args[8] = { arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7};



  ops_timing_realloc(35,"advec_cell_kernel3_ydir");
  OPS_kernels[35].count++;

  //compute locally allocated range for the sub-block
  int start[3];
  int end[3];

  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI
  #ifdef OPS_DEBUG
  ops_register_args(args, "advec_cell_kernel3_ydir");
  #endif

  offs[0][0] = args[0].stencil->stride[0]*1;  //unit step in x dimension
  offs[0][1] = off3D(1, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][0];
  offs[0][2] = off3D(2, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][1] - offs[0][0];

  offs[1][0] = args[1].stencil->stride[0]*1;  //unit step in x dimension
  offs[1][1] = off3D(1, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][0];
  offs[1][2] = off3D(2, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][1] - offs[1][0];

  offs[2][0] = args[2].stencil->stride[0]*1;  //unit step in x dimension
  offs[2][1] = off3D(1, &start[0],
      &end[0],args[2].dat->size, args[2].stencil->stride) - offs[2][0];
  offs[2][2] = off3D(2, &start[0],
      &end[0],args[2].dat->size, args[2].stencil->stride) - offs[2][1] - offs[2][0];

  offs[3][0] = args[3].stencil->stride[0]*1;  //unit step in x dimension
  offs[3][1] = off3D(1, &start[0],
      &end[0],args[3].dat->size, args[3].stencil->stride) - offs[3][0];
  offs[3][2] = off3D(2, &start[0],
      &end[0],args[3].dat->size, args[3].stencil->stride) - offs[3][1] - offs[3][0];

  offs[4][0] = args[4].stencil->stride[0]*1;  //unit step in x dimension
  offs[4][1] = off3D(1, &start[0],
      &end[0],args[4].dat->size, args[4].stencil->stride) - offs[4][0];
  offs[4][2] = off3D(2, &start[0],
      &end[0],args[4].dat->size, args[4].stencil->stride) - offs[4][1] - offs[4][0];

  offs[5][0] = args[5].stencil->stride[0]*1;  //unit step in x dimension
  offs[5][1] = off3D(1, &start[0],
      &end[0],args[5].dat->size, args[5].stencil->stride) - offs[5][0];
  offs[5][2] = off3D(2, &start[0],
      &end[0],args[5].dat->size, args[5].stencil->stride) - offs[5][1] - offs[5][0];

  offs[6][0] = args[6].stencil->stride[0]*1;  //unit step in x dimension
  offs[6][1] = off3D(1, &start[0],
      &end[0],args[6].dat->size, args[6].stencil->stride) - offs[6][0];
  offs[6][2] = off3D(2, &start[0],
      &end[0],args[6].dat->size, args[6].stencil->stride) - offs[6][1] - offs[6][0];

  offs[7][0] = args[7].stencil->stride[0]*1;  //unit step in x dimension
  offs[7][1] = off3D(1, &start[0],
      &end[0],args[7].dat->size, args[7].stencil->stride) - offs[7][0];
  offs[7][2] = off3D(2, &start[0],
      &end[0],args[7].dat->size, args[7].stencil->stride) - offs[7][1] - offs[7][0];



  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c2,&t2);

  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int off0_2 = offs[0][2];
  int dat0 = args[0].dat->elem_size;
  int off1_0 = offs[1][0];
  int off1_1 = offs[1][1];
  int off1_2 = offs[1][2];
  int dat1 = args[1].dat->elem_size;
  int off2_0 = offs[2][0];
  int off2_1 = offs[2][1];
  int off2_2 = offs[2][2];
  int dat2 = args[2].dat->elem_size;
  int off3_0 = offs[3][0];
  int off3_1 = offs[3][1];
  int off3_2 = offs[3][2];
  int dat3 = args[3].dat->elem_size;
  int off4_0 = offs[4][0];
  int off4_1 = offs[4][1];
  int off4_2 = offs[4][2];
  int dat4 = args[4].dat->elem_size;
  int off5_0 = offs[5][0];
  int off5_1 = offs[5][1];
  int off5_2 = offs[5][2];
  int dat5 = args[5].dat->elem_size;
  int off6_0 = offs[6][0];
  int off6_1 = offs[6][1];
  int off6_2 = offs[6][2];
  int dat6 = args[6].dat->elem_size;
  int off7_0 = offs[7][0];
  int off7_1 = offs[7][1];
  int off7_2 = offs[7][2];
  int dat7 = args[7].dat->elem_size;

  //set up initial pointers and exchange halos if necessary
  int d_m[OPS_MAX_DIM];
  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
  #endif //OPS_MPI
  int base0 = dat0 * 1 * 
    (start[0] * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    (start[1] * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
  base0 = base0+ dat0 *
    args[0].dat->size[0] *
    args[0].dat->size[1] *
    (start[2] * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
  p_a[0] = (char *)args[0].data + base0;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
  #endif //OPS_MPI
  int base1 = dat1 * 1 * 
    (start[0] * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    (start[1] * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
  base1 = base1+ dat1 *
    args[1].dat->size[0] *
    args[1].dat->size[1] *
    (start[2] * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);
  p_a[1] = (char *)args[1].data + base1;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d];
  #endif //OPS_MPI
  int base2 = dat2 * 1 * 
    (start[0] * args[2].stencil->stride[0] - args[2].dat->base[0] - d_m[0]);
  base2 = base2+ dat2 *
    args[2].dat->size[0] *
    (start[1] * args[2].stencil->stride[1] - args[2].dat->base[1] - d_m[1]);
  base2 = base2+ dat2 *
    args[2].dat->size[0] *
    args[2].dat->size[1] *
    (start[2] * args[2].stencil->stride[2] - args[2].dat->base[2] - d_m[2]);
  p_a[2] = (char *)args[2].data + base2;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d];
  #endif //OPS_MPI
  int base3 = dat3 * 1 * 
    (start[0] * args[3].stencil->stride[0] - args[3].dat->base[0] - d_m[0]);
  base3 = base3+ dat3 *
    args[3].dat->size[0] *
    (start[1] * args[3].stencil->stride[1] - args[3].dat->base[1] - d_m[1]);
  base3 = base3+ dat3 *
    args[3].dat->size[0] *
    args[3].dat->size[1] *
    (start[2] * args[3].stencil->stride[2] - args[3].dat->base[2] - d_m[2]);
  p_a[3] = (char *)args[3].data + base3;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d] + OPS_sub_dat_list[args[4].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[4].dat->d_m[d];
  #endif //OPS_MPI
  int base4 = dat4 * 1 * 
    (start[0] * args[4].stencil->stride[0] - args[4].dat->base[0] - d_m[0]);
  base4 = base4+ dat4 *
    args[4].dat->size[0] *
    (start[1] * args[4].stencil->stride[1] - args[4].dat->base[1] - d_m[1]);
  base4 = base4+ dat4 *
    args[4].dat->size[0] *
    args[4].dat->size[1] *
    (start[2] * args[4].stencil->stride[2] - args[4].dat->base[2] - d_m[2]);
  p_a[4] = (char *)args[4].data + base4;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d] + OPS_sub_dat_list[args[5].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[5].dat->d_m[d];
  #endif //OPS_MPI
  int base5 = dat5 * 1 * 
    (start[0] * args[5].stencil->stride[0] - args[5].dat->base[0] - d_m[0]);
  base5 = base5+ dat5 *
    args[5].dat->size[0] *
    (start[1] * args[5].stencil->stride[1] - args[5].dat->base[1] - d_m[1]);
  base5 = base5+ dat5 *
    args[5].dat->size[0] *
    args[5].dat->size[1] *
    (start[2] * args[5].stencil->stride[2] - args[5].dat->base[2] - d_m[2]);
  p_a[5] = (char *)args[5].data + base5;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d] + OPS_sub_dat_list[args[6].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[6].dat->d_m[d];
  #endif //OPS_MPI
  int base6 = dat6 * 1 * 
    (start[0] * args[6].stencil->stride[0] - args[6].dat->base[0] - d_m[0]);
  base6 = base6+ dat6 *
    args[6].dat->size[0] *
    (start[1] * args[6].stencil->stride[1] - args[6].dat->base[1] - d_m[1]);
  base6 = base6+ dat6 *
    args[6].dat->size[0] *
    args[6].dat->size[1] *
    (start[2] * args[6].stencil->stride[2] - args[6].dat->base[2] - d_m[2]);
  p_a[6] = (char *)args[6].data + base6;

  #ifdef OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[7].dat->d_m[d] + OPS_sub_dat_list[args[7].dat->index]->d_im[d];
  #else //OPS_MPI
  for (int d = 0; d < dim; d++) d_m[d] = args[7].dat->d_m[d];
  #endif //OPS_MPI
  int base7 = dat7 * 1 * 
    (start[0] * args[7].stencil->stride[0] - args[7].dat->base[0] - d_m[0]);
  base7 = base7+ dat7 *
    args[7].dat->size[0] *
    (start[1] * args[7].stencil->stride[1] - args[7].dat->base[1] - d_m[1]);
  base7 = base7+ dat7 *
    args[7].dat->size[0] *
    args[7].dat->size[1] *
    (start[2] * args[7].stencil->stride[2] - args[7].dat->base[2] - d_m[2]);
  p_a[7] = (char *)args[7].data + base7;


  ops_H_D_exchanges_host(args, 8);
  ops_halo_exchanges(args,8,range);
  ops_H_D_exchanges_host(args, 8);

  ops_timers_core(&c1,&t1);
  OPS_kernels[35].mpi_time += t1-t2;

  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0]*args[2].dat->dim;
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0]*args[3].dat->dim;
  ydim3 = args[3].dat->size[1];
  xdim4 = args[4].dat->size[0]*args[4].dat->dim;
  ydim4 = args[4].dat->size[1];
  xdim5 = args[5].dat->size[0]*args[5].dat->dim;
  ydim5 = args[5].dat->size[1];
  xdim6 = args[6].dat->size[0]*args[6].dat->dim;
  ydim6 = args[6].dat->size[1];
  xdim7 = args[7].dat->size[0]*args[7].dat->dim;
  ydim7 = args[7].dat->size[1];

  int n_x;
  for ( int n_z=start[2]; n_z<end[2]; n_z++ ){
    for ( int n_y=start[1]; n_y<end[1]; n_y++ ){
      #pragma novector
      for( n_x=start[0]; n_x<start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x+=SIMD_VEC ) {
        //call kernel function, passing in pointers to data -vectorised
        #pragma simd
        for ( int i=0; i<SIMD_VEC; i++ ){
          advec_cell_kernel3_ydir(  (double *)p_a[0]+ i*1, (double *)p_a[1]+ i*1, (int *)p_a[2]+ i*0,
           (double *)p_a[3]+ i*0, (double *)p_a[4]+ i*1, (double *)p_a[5]+ i*1, (double *)p_a[6]+ i*1,
           (double *)p_a[7]+ i*1 );

        }

        //shift pointers to data x direction
        p_a[0]= p_a[0] + (dat0 * off0_0)*SIMD_VEC;
        p_a[1]= p_a[1] + (dat1 * off1_0)*SIMD_VEC;
        p_a[2]= p_a[2] + (dat2 * off2_0)*SIMD_VEC;
        p_a[3]= p_a[3] + (dat3 * off3_0)*SIMD_VEC;
        p_a[4]= p_a[4] + (dat4 * off4_0)*SIMD_VEC;
        p_a[5]= p_a[5] + (dat5 * off5_0)*SIMD_VEC;
        p_a[6]= p_a[6] + (dat6 * off6_0)*SIMD_VEC;
        p_a[7]= p_a[7] + (dat7 * off7_0)*SIMD_VEC;
      }

      for ( int n_x=start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x<end[0]; n_x++ ){
        //call kernel function, passing in pointers to data - remainder
        advec_cell_kernel3_ydir(  (double *)p_a[0], (double *)p_a[1], (int *)p_a[2],
           (double *)p_a[3], (double *)p_a[4], (double *)p_a[5], (double *)p_a[6],
           (double *)p_a[7] );


        //shift pointers to data x direction
        p_a[0]= p_a[0] + (dat0 * off0_0);
        p_a[1]= p_a[1] + (dat1 * off1_0);
        p_a[2]= p_a[2] + (dat2 * off2_0);
        p_a[3]= p_a[3] + (dat3 * off3_0);
        p_a[4]= p_a[4] + (dat4 * off4_0);
        p_a[5]= p_a[5] + (dat5 * off5_0);
        p_a[6]= p_a[6] + (dat6 * off6_0);
        p_a[7]= p_a[7] + (dat7 * off7_0);
      }

      //shift pointers to data y direction
      p_a[0]= p_a[0] + (dat0 * off0_1);
      p_a[1]= p_a[1] + (dat1 * off1_1);
      p_a[2]= p_a[2] + (dat2 * off2_1);
      p_a[3]= p_a[3] + (dat3 * off3_1);
      p_a[4]= p_a[4] + (dat4 * off4_1);
      p_a[5]= p_a[5] + (dat5 * off5_1);
      p_a[6]= p_a[6] + (dat6 * off6_1);
      p_a[7]= p_a[7] + (dat7 * off7_1);
    }
    //shift pointers to data z direction
    p_a[0]= p_a[0] + (dat0 * off0_2);
    p_a[1]= p_a[1] + (dat1 * off1_2);
    p_a[2]= p_a[2] + (dat2 * off2_2);
    p_a[3]= p_a[3] + (dat3 * off3_2);
    p_a[4]= p_a[4] + (dat4 * off4_2);
    p_a[5]= p_a[5] + (dat5 * off5_2);
    p_a[6]= p_a[6] + (dat6 * off6_2);
    p_a[7]= p_a[7] + (dat7 * off7_2);
  }
  ops_timers_core(&c2,&t2);
  OPS_kernels[35].time += t2-t1;
  ops_set_dirtybit_host(args, 8);
  ops_set_halo_dirtybit3(&args[6],range);
  ops_set_halo_dirtybit3(&args[7],range);

  //Update kernel record
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg2);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg3);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg4);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg5);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg6);
  OPS_kernels[35].transfer += ops_compute_transfer(dim, range, &arg7);
}
예제 #28
0
// host stub function
void ops_par_loop_test_kernel(char const *name, ops_block block, int dim,
                              int *range, ops_arg arg0, ops_arg arg1) {

  // Timing
  double t1, t2, c1, c2;

  char *p_a[2];
  int offs[2][1];
  ops_arg args[2] = {arg0, arg1};

#ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args, 2, range, 14))
    return;
#endif

  if (OPS_diags > 1) {
    ops_timing_realloc(14, "test_kernel");
    OPS_kernels[14].count++;
    ops_timers_core(&c2, &t2);
  }

  // compute locally allocated range for the sub-block
  int start[1];
  int end[1];

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif
#ifdef OPS_DEBUG
  ops_register_args(args, "test_kernel");
#endif

  int arg_idx[1];
  int arg_idx_base[1];
#ifdef OPS_MPI
  if (compute_ranges(args, 2, block, range, start, end, arg_idx) < 0)
    return;
#else  // OPS_MPI
  for (int n = 0; n < 1; n++) {
    start[n] = range[2 * n];
    end[n] = range[2 * n + 1];
    arg_idx[n] = start[n];
  }
#endif // OPS_MPI
  for (int n = 0; n < 1; n++) {
    arg_idx_base[n] = arg_idx[n];
  }
  offs[0][0] = args[0].stencil->stride[0] * 1; // unit step in x dimension

  int off0_0 = offs[0][0];
  int dat0 = (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);

  // set up initial pointers and exchange halos if necessary
  int base0 = args[0].dat->base_offset +
              (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size) *
                  start[0] * args[0].stencil->stride[0];
  p_a[0] = (char *)args[0].data + base0;

#ifdef OPS_MPI
  p_a[1] = ((ops_reduction)args[1].data)->data +
           ((ops_reduction)args[1].data)->size * block->index;
#else
  p_a[1] = ((ops_reduction)args[1].data)->data;
#endif

  // initialize global variable with the dimension of dats
  xdim0 = args[0].dat->size[0];

  // Halo Exchanges
  ops_H_D_exchanges_host(args, 2);
  ops_halo_exchanges(args, 2, range);
  ops_H_D_exchanges_host(args, 2);

  if (OPS_diags > 1) {
    ops_timers_core(&c1, &t1);
    OPS_kernels[14].mpi_time += t1 - t2;
  }

  int n_x;
#pragma novector
  for (n_x = start[0];
       n_x < start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
       n_x += SIMD_VEC) {
    // call kernel function, passing in pointers to data -vectorised
    for (int i = 0; i < SIMD_VEC; i++) {
      test_kernel((double *)p_a[0] + i * 1 * 1, (double *)p_a[1]);
    }

    // shift pointers to data x direction
    p_a[0] = p_a[0] + (dat0 * off0_0) * SIMD_VEC;
  }

  for (int n_x = start[0] + ((end[0] - start[0]) / SIMD_VEC) * SIMD_VEC;
       n_x < end[0]; n_x++) {
    // call kernel function, passing in pointers to data - remainder
    test_kernel((double *)p_a[0], (double *)p_a[1]);

    // shift pointers to data x direction
    p_a[0] = p_a[0] + (dat0 * off0_0);
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c2, &t2);
    OPS_kernels[14].time += t2 - t1;
  }
  ops_set_dirtybit_host(args, 2);

  if (OPS_diags > 1) {
    // Update kernel record
    ops_timers_core(&c1, &t1);
    OPS_kernels[14].mpi_time += t1 - t2;
    OPS_kernels[14].transfer += ops_compute_transfer(dim, start, end, &arg0);
  }
}
예제 #29
0
// host stub function
void ops_par_loop_init_kernel(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1) {

  //Timing
  double t1,t2,c1,c2;

  int  offs[2][3];
  ops_arg args[2] = { arg0, arg1};



  #ifdef CHECKPOINTING
  if (!ops_checkpointing_before(args,2,range,0)) return;
  #endif

  if (OPS_diags > 1) {
    ops_timing_realloc(0,"init_kernel");
    OPS_kernels[0].count++;
    ops_timers_core(&c1,&t1);
  }

#ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
#endif

  //compute locally allocated range for the sub-block

  int start[3];
  int end[3];
  int arg_idx[3];

  #ifdef OPS_MPI
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
    if (end[n] < start[n])
      end[n] = start[n];
  }
  #else
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif
  #ifdef OPS_DEBUG
  ops_register_args(args, "init_kernel");
  #endif

  offs[0][0] = args[0].stencil->stride[0]*1;  //unit step in x dimension
  offs[0][1] = off3D(1, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][0];
  offs[0][2] = off3D(2, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][1] - offs[0][0];



  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int off0_2 = offs[0][2];
  int dat0 =  (OPS_soa ? args[0].dat->type_size : args[0].dat->elem_size);

  //Halo Exchanges
  ops_H_D_exchanges_host(args, 2);
  ops_halo_exchanges(args,2,range);
  ops_H_D_exchanges_host(args, 2);

  #ifdef _OPENMP
  int nthreads = omp_get_max_threads( );
  #else
  int nthreads = 1;
  #endif
  xdim0 = args[0].dat->size[0];
  ydim0 = args[0].dat->size[1];


  if (OPS_diags > 1) {
    ops_timers_core(&c2,&t2);
    OPS_kernels[0].mpi_time += t2-t1;
  }


  #pragma omp parallel for
  for ( int thr=0; thr<nthreads; thr++ ){

    int z_size = end[2]-start[2];
    char *p_a[2];

    int start_i = start[2] + ((z_size-1)/nthreads+1)*thr;
    int finish_i = start[2] + MIN(((z_size-1)/nthreads+1)*(thr+1),z_size);

    //get address per thread
    int start0 = start[0];
    int start1 = start[1];
    int start2 = start_i;

    int arg_idx[3];
    #ifdef OPS_MPI
    arg_idx[0] = sb->decomp_disp[0]+start0;
    arg_idx[1] = sb->decomp_disp[1]+start1;
    arg_idx[2] = sb->decomp_disp[2]+start2;
    #else
    arg_idx[0] = start0;
    arg_idx[1] = start1;
    arg_idx[2] = start2;
    #endif
    //set up initial pointers
    int d_m[OPS_MAX_DIM];
    #ifdef OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
    #else
    for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
    #endif
    int base0 = dat0 * 1 *
    (start0 * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
    base0 = base0+ dat0 *
      args[0].dat->size[0] *
      (start1 * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
    base0 = base0+ dat0 *
      args[0].dat->size[0] *
      args[0].dat->size[1] *
      (start2 * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
    p_a[0] = (char *)args[0].data + base0;

    p_a[1] = (char *)arg_idx;


    for ( int n_z=start_i; n_z<finish_i; n_z++ ){
      for ( int n_y=start[1]; n_y<end[1]; n_y++ ){
        for ( int n_x=start[0]; n_x<start[0]+(end[0]-start[0])/SIMD_VEC; n_x++ ){
          //call kernel function, passing in pointers to data -vectorised
          for ( int i=0; i<SIMD_VEC; i++ ){
            init_kernel(  (double * )p_a[0]+ i*1*1, arg_idx );

            arg_idx[0]++;
          }

          //shift pointers to data x direction
          p_a[0]= p_a[0] + (dat0 * off0_0)*SIMD_VEC;
        }

        for ( int n_x=start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x<end[0]; n_x++ ){
          //call kernel function, passing in pointers to data - remainder
          init_kernel(  (double * )p_a[0], arg_idx );


          //shift pointers to data x direction
          p_a[0]= p_a[0] + (dat0 * off0_0);
          arg_idx[0]++;
        }

        //shift pointers to data y direction
        p_a[0]= p_a[0] + (dat0 * off0_1);
        #ifdef OPS_MPI
        arg_idx[0] = sb->decomp_disp[0]+start0;
        #else
        arg_idx[0] = start0;
        #endif
        arg_idx[1]++;
      }
      //shift pointers to data z direction
      p_a[0]= p_a[0] + (dat0 * off0_2);
      #ifdef OPS_MPI
      arg_idx[0] = sb->decomp_disp[0]+start0;
      arg_idx[1] = sb->decomp_disp[1]+start1;
      #else
      arg_idx[0] = start0;
      arg_idx[1] = start1;
      #endif
      arg_idx[2]++;
    }
  }

  if (OPS_diags > 1) {
    ops_timers_core(&c1,&t1);
    OPS_kernels[0].time += t1-t2;
  }

  ops_set_dirtybit_host(args, 2);

  ops_set_halo_dirtybit3(&args[0],range);

  if (OPS_diags > 1) {
    //Update kernel record
    ops_timers_core(&c2,&t2);
    OPS_kernels[0].mpi_time += t2-t1;
    OPS_kernels[0].transfer += ops_compute_transfer(dim, start, end, &arg0);
  }
}
// host stub function
void ops_par_loop_flux_calc_kernelx(char const *name, ops_block block, int dim, int* range,
 ops_arg arg0, ops_arg arg1, ops_arg arg2, ops_arg arg3) {

  //Timing
  double t1,t2,c1,c2;
  ops_timers_core(&c1,&t1);


  int  offs[4][3];
  ops_arg args[4] = { arg0, arg1, arg2, arg3};



  ops_timing_realloc(8,"flux_calc_kernelx");
  OPS_kernels[8].count++;

  //compute locally allocated range for the sub-block

  int start[3];
  int end[3];

  #ifdef OPS_MPI
  sub_block_list sb = OPS_sub_block_list[block->index];
  if (!sb->owned) return;
  for ( int n=0; n<3; n++ ){
    start[n] = sb->decomp_disp[n];end[n] = sb->decomp_disp[n]+sb->decomp_size[n];
    if (start[n] >= range[2*n]) {
      start[n] = 0;
    }
    else {
      start[n] = range[2*n] - start[n];
    }
    if (sb->id_m[n]==MPI_PROC_NULL && range[2*n] < 0) start[n] = range[2*n];
    if (end[n] >= range[2*n+1]) {
      end[n] = range[2*n+1] - sb->decomp_disp[n];
    }
    else {
      end[n] = sb->decomp_size[n];
    }
    if (sb->id_p[n]==MPI_PROC_NULL && (range[2*n+1] > sb->decomp_disp[n]+sb->decomp_size[n]))
      end[n] += (range[2*n+1]-sb->decomp_disp[n]-sb->decomp_size[n]);
  }
  #else //OPS_MPI
  for ( int n=0; n<3; n++ ){
    start[n] = range[2*n];end[n] = range[2*n+1];
  }
  #endif //OPS_MPI
  #ifdef OPS_DEBUG
  ops_register_args(args, "flux_calc_kernelx");
  #endif

  offs[0][0] = args[0].stencil->stride[0]*1;  //unit step in x dimension
  offs[0][1] = off3D(1, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][0];
  offs[0][2] = off3D(2, &start[0],
      &end[0],args[0].dat->size, args[0].stencil->stride) - offs[0][1] - offs[0][0];

  offs[1][0] = args[1].stencil->stride[0]*1;  //unit step in x dimension
  offs[1][1] = off3D(1, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][0];
  offs[1][2] = off3D(2, &start[0],
      &end[0],args[1].dat->size, args[1].stencil->stride) - offs[1][1] - offs[1][0];

  offs[2][0] = args[2].stencil->stride[0]*1;  //unit step in x dimension
  offs[2][1] = off3D(1, &start[0],
      &end[0],args[2].dat->size, args[2].stencil->stride) - offs[2][0];
  offs[2][2] = off3D(2, &start[0],
      &end[0],args[2].dat->size, args[2].stencil->stride) - offs[2][1] - offs[2][0];

  offs[3][0] = args[3].stencil->stride[0]*1;  //unit step in x dimension
  offs[3][1] = off3D(1, &start[0],
      &end[0],args[3].dat->size, args[3].stencil->stride) - offs[3][0];
  offs[3][2] = off3D(2, &start[0],
      &end[0],args[3].dat->size, args[3].stencil->stride) - offs[3][1] - offs[3][0];



  int off0_0 = offs[0][0];
  int off0_1 = offs[0][1];
  int off0_2 = offs[0][2];
  int dat0 = args[0].dat->elem_size;
  int off1_0 = offs[1][0];
  int off1_1 = offs[1][1];
  int off1_2 = offs[1][2];
  int dat1 = args[1].dat->elem_size;
  int off2_0 = offs[2][0];
  int off2_1 = offs[2][1];
  int off2_2 = offs[2][2];
  int dat2 = args[2].dat->elem_size;
  int off3_0 = offs[3][0];
  int off3_1 = offs[3][1];
  int off3_2 = offs[3][2];
  int dat3 = args[3].dat->elem_size;


  #ifdef _OPENMP
  int nthreads = omp_get_max_threads( );
  #else
  int nthreads = 1;
  #endif
  xdim0 = args[0].dat->size[0]*args[0].dat->dim;
  ydim0 = args[0].dat->size[1];
  xdim1 = args[1].dat->size[0]*args[1].dat->dim;
  ydim1 = args[1].dat->size[1];
  xdim2 = args[2].dat->size[0]*args[2].dat->dim;
  ydim2 = args[2].dat->size[1];
  xdim3 = args[3].dat->size[0]*args[3].dat->dim;
  ydim3 = args[3].dat->size[1];

  ops_H_D_exchanges_host(args, 4);

  //Halo Exchanges
  ops_halo_exchanges(args,4,range);


  ops_timers_core(&c2,&t2);
  OPS_kernels[8].mpi_time += t2-t1;


  #pragma omp parallel for
  for ( int thr=0; thr<nthreads; thr++ ){

    int z_size = end[2]-start[2];
    char *p_a[4];

    int start_i = start[2] + ((z_size-1)/nthreads+1)*thr;
    int finish_i = start[2] + MIN(((z_size-1)/nthreads+1)*(thr+1),z_size);

    //get address per thread
    int start0 = start[0];
    int start1 = start[1];
    int start2 = start_i;

    //set up initial pointers 
    int d_m[OPS_MAX_DIM];
    #ifdef OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d] + OPS_sub_dat_list[args[0].dat->index]->d_im[d];
    #else //OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[0].dat->d_m[d];
    #endif //OPS_MPI
    int base0 = dat0 * 1 * 
    (start0 * args[0].stencil->stride[0] - args[0].dat->base[0] - d_m[0]);
    base0 = base0+ dat0 *
      args[0].dat->size[0] *
      (start1 * args[0].stencil->stride[1] - args[0].dat->base[1] - d_m[1]);
    base0 = base0+ dat0 *
      args[0].dat->size[0] *
      args[0].dat->size[1] *
      (start2 * args[0].stencil->stride[2] - args[0].dat->base[2] - d_m[2]);
    p_a[0] = (char *)args[0].data + base0;

    #ifdef OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d] + OPS_sub_dat_list[args[1].dat->index]->d_im[d];
    #else //OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[1].dat->d_m[d];
    #endif //OPS_MPI
    int base1 = dat1 * 1 * 
    (start0 * args[1].stencil->stride[0] - args[1].dat->base[0] - d_m[0]);
    base1 = base1+ dat1 *
      args[1].dat->size[0] *
      (start1 * args[1].stencil->stride[1] - args[1].dat->base[1] - d_m[1]);
    base1 = base1+ dat1 *
      args[1].dat->size[0] *
      args[1].dat->size[1] *
      (start2 * args[1].stencil->stride[2] - args[1].dat->base[2] - d_m[2]);
    p_a[1] = (char *)args[1].data + base1;

    #ifdef OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d] + OPS_sub_dat_list[args[2].dat->index]->d_im[d];
    #else //OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[2].dat->d_m[d];
    #endif //OPS_MPI
    int base2 = dat2 * 1 * 
    (start0 * args[2].stencil->stride[0] - args[2].dat->base[0] - d_m[0]);
    base2 = base2+ dat2 *
      args[2].dat->size[0] *
      (start1 * args[2].stencil->stride[1] - args[2].dat->base[1] - d_m[1]);
    base2 = base2+ dat2 *
      args[2].dat->size[0] *
      args[2].dat->size[1] *
      (start2 * args[2].stencil->stride[2] - args[2].dat->base[2] - d_m[2]);
    p_a[2] = (char *)args[2].data + base2;

    #ifdef OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d] + OPS_sub_dat_list[args[3].dat->index]->d_im[d];
    #else //OPS_MPI
    for (int d = 0; d < dim; d++) d_m[d] = args[3].dat->d_m[d];
    #endif //OPS_MPI
    int base3 = dat3 * 1 * 
    (start0 * args[3].stencil->stride[0] - args[3].dat->base[0] - d_m[0]);
    base3 = base3+ dat3 *
      args[3].dat->size[0] *
      (start1 * args[3].stencil->stride[1] - args[3].dat->base[1] - d_m[1]);
    base3 = base3+ dat3 *
      args[3].dat->size[0] *
      args[3].dat->size[1] *
      (start2 * args[3].stencil->stride[2] - args[3].dat->base[2] - d_m[2]);
    p_a[3] = (char *)args[3].data + base3;


    for ( int n_z=start_i; n_z<finish_i; n_z++ ){
      for ( int n_y=start[1]; n_y<end[1]; n_y++ ){
        for ( int n_x=start[0]; n_x<start[0]+(end[0]-start[0])/SIMD_VEC; n_x++ ){
          //call kernel function, passing in pointers to data -vectorised
          #pragma simd
          for ( int i=0; i<SIMD_VEC; i++ ){
            flux_calc_kernelx(  (double * )p_a[0]+ i*1, (const double * )p_a[1]+ i*1, (const double * )p_a[2]+ i*1,
           (const double * )p_a[3]+ i*1 );

          }

          //shift pointers to data x direction
          p_a[0]= p_a[0] + (dat0 * off0_0)*SIMD_VEC;
          p_a[1]= p_a[1] + (dat1 * off1_0)*SIMD_VEC;
          p_a[2]= p_a[2] + (dat2 * off2_0)*SIMD_VEC;
          p_a[3]= p_a[3] + (dat3 * off3_0)*SIMD_VEC;
        }

        for ( int n_x=start[0]+((end[0]-start[0])/SIMD_VEC)*SIMD_VEC; n_x<end[0]; n_x++ ){
          //call kernel function, passing in pointers to data - remainder
          flux_calc_kernelx(  (double * )p_a[0], (const double * )p_a[1], (const double * )p_a[2],
           (const double * )p_a[3] );


          //shift pointers to data x direction
          p_a[0]= p_a[0] + (dat0 * off0_0);
          p_a[1]= p_a[1] + (dat1 * off1_0);
          p_a[2]= p_a[2] + (dat2 * off2_0);
          p_a[3]= p_a[3] + (dat3 * off3_0);
        }

        //shift pointers to data y direction
        p_a[0]= p_a[0] + (dat0 * off0_1);
        p_a[1]= p_a[1] + (dat1 * off1_1);
        p_a[2]= p_a[2] + (dat2 * off2_1);
        p_a[3]= p_a[3] + (dat3 * off3_1);
      }
      //shift pointers to data z direction
      p_a[0]= p_a[0] + (dat0 * off0_2);
      p_a[1]= p_a[1] + (dat1 * off1_2);
      p_a[2]= p_a[2] + (dat2 * off2_2);
      p_a[3]= p_a[3] + (dat3 * off3_2);
    }
  }

  ops_timers_core(&c1,&t1);
  OPS_kernels[8].time += t1-t2;

  ops_set_dirtybit_host(args, 4);

  ops_set_halo_dirtybit3(&args[0],range);

  //Update kernel record
  ops_timers_core(&c2,&t2);
  OPS_kernels[8].mpi_time += t2-t1;
  OPS_kernels[8].transfer += ops_compute_transfer(dim, range, &arg0);
  OPS_kernels[8].transfer += ops_compute_transfer(dim, range, &arg1);
  OPS_kernels[8].transfer += ops_compute_transfer(dim, range, &arg2);
  OPS_kernels[8].transfer += ops_compute_transfer(dim, range, &arg3);
}