int main(int argc, char **argv)
{
MPI_Init(&argc, &argv);
int rank, size;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
int *groups = (int *)malloc(size * sizeof(int));
int *groups2 = (int *)malloc(size * sizeof(int));
int my_type = 1; //This is to be read from a configuration file
MPI_Allgather(&my_type, 1, MPI_INT, groups, 1, MPI_INT, MPI_COMM_WORLD);
int num_groups = 0;
for (int i = 0; i < size; i++) num_groups = num_groups > groups[i] ? num_groups : groups[i];
num_groups++;
//The global group
MPI_Group global_grp;
MPI_Comm_group(MPI_COMM_WORLD, &global_grp);
//Create sub-groups and sub-communicators
MPI_Group mpigroups[num_groups];
MPI_Comm mpicomms[num_groups];
int count = 0;
for (int i = 0; i < num_groups; ++i) {
count = 0;
for (int j = 0; j < size; ++j) {
if (groups[j] == i) {
groups2[count++] = j;
}
}
MPI_Group_incl(global_grp, count, groups2, &mpigroups[i]);
MPI_Comm_create(MPI_COMM_WORLD, mpigroups[i], &mpicomms[i]);
}
//coupling procs
for (int i = 0; i < 1; ++i) {
count = 0;
for (int j = 0; j < size; ++j) {
if (groups[j] == i) {
groups2[count++] = j;
}
}
}
// OP initialisation
op_mpi_init(argc,argv,2,MPI_COMM_WORLD, mpicomms[1]);
int niter;
double rms;
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
// set constants and initialise flow field and residual
op_printf("initialising flow field \n");
char file[] = "new_grid.h5";
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set_hdf5(file, "nodes");
op_set edges = op_decl_set_hdf5(file, "edges");
op_set bedges = op_decl_set_hdf5(file, "bedges");
op_set cells = op_decl_set_hdf5(file, "cells");
op_map pedge = op_decl_map_hdf5(edges, nodes, 2, file, "pedge");
op_map pecell = op_decl_map_hdf5(edges, cells,2, file, "pecell");
op_map pbedge = op_decl_map_hdf5(bedges,nodes,2, file, "pbedge");
op_map pbecell = op_decl_map_hdf5(bedges,cells,1, file, "pbecell");
op_map pcell = op_decl_map_hdf5(cells, nodes,4, file, "pcell");
op_map pbndbnd = op_decl_map_hdf5(bedges, bedges,1, file, "pbndbnd");
op_map m_test = op_decl_map_hdf5(cells, nodes,4, file, "m_test");
if (m_test == NULL) printf("m_test not found\n");
op_dat p_bound = op_decl_dat_hdf5(bedges,1,"int" ,file,"p_bound");
op_dat p_x = op_decl_dat_hdf5(nodes ,2,"double",file,"p_x");
op_dat p_q = op_decl_dat_hdf5(cells ,4,"double",file,"p_q");
op_dat p_qold = op_decl_dat_hdf5(cells ,4,"double",file,"p_qold");
op_dat p_adt = op_decl_dat_hdf5(cells ,1,"double",file,"p_adt");
op_dat p_res = op_decl_dat_hdf5(cells ,4,"double",file,"p_res");
op_dat p_test = op_decl_dat_hdf5(cells ,4,"double",file,"p_test");
if (p_test == NULL) printf("p_test not found\n");
op_get_const_hdf5("gam", 1, "double", (char *)&gam, "new_grid.h5");
op_get_const_hdf5("gm1", 1, "double", (char *)&gm1, "new_grid.h5");
op_get_const_hdf5("cfl", 1, "double", (char *)&cfl, "new_grid.h5");
op_get_const_hdf5("eps", 1, "double", (char *)&eps, "new_grid.h5");
op_get_const_hdf5("mach", 1, "double", (char *)&mach, "new_grid.h5");
op_get_const_hdf5("alpha", 1, "double", (char *)&alpha, "new_grid.h5");
op_get_const_hdf5("qinf", 4, "double", (char *)&qinf, "new_grid.h5");
op_decl_const(1,"double",&gam );
op_decl_const(1,"double",&gm1 );
op_decl_const(1,"double",&cfl );
op_decl_const(1,"double",&eps );
op_decl_const(1,"double",&mach );
op_decl_const(1,"double",&alpha);
op_decl_const(4,"double",qinf );
op_diagnostic_output();
//write back original data just to compare you read the file correctly
//do an h5diff between new_grid_out.h5 and new_grid.h5 to
//compare two hdf5 files
op_dump_to_hdf5("new_grid_out.h5");
op_write_const_hdf5("gam",1,"double",(char *)&gam, "new_grid_out.h5");
op_write_const_hdf5("gm1",1,"double",(char *)&gm1, "new_grid_out.h5");
op_write_const_hdf5("cfl",1,"double",(char *)&cfl, "new_grid_out.h5");
op_write_const_hdf5("eps",1,"double",(char *)&eps, "new_grid_out.h5");
op_write_const_hdf5("mach",1,"double",(char *)&mach, "new_grid_out.h5");
op_write_const_hdf5("alpha",1,"double",(char *)&alpha, "new_grid_out.h5");
op_write_const_hdf5("qinf",4,"double",(char *)qinf, "new_grid_out.h5");
//trigger partitioning and halo creation routines
op_partition("PTSCOTCH", "KWAY", edges, pecell, p_x);
//op_partition("PARMETIS", "KWAY", edges, pecell, p_x);
int g_ncell = op_get_size(cells);
//create some temporaries so we can exchange data defined on the boundary
double *ptr = NULL;
op_dat center = op_decl_dat_temp(bedges, 3, "double", ptr, "center");
op_dat pres = op_decl_dat_temp(bedges, 1, "double", ptr, "pres");
int *ptr2 = NULL;
op_dat p_bound2 = op_decl_dat_temp(bedges, 1, "int", ptr2, "p_bound2");
op_dat center2 = op_decl_dat_temp(bedges, 3, "double", ptr, "center2");
op_dat pres2 = op_decl_dat_temp(bedges, 1, "double", ptr, "pres2");
//create import and export handles
op_export_handle handle = op_export_init(count, groups2, pbndbnd);
op_import_handle handle2 = op_import_init(count, groups2, center);
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
// main time-marching loop
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
// save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_WRITE));
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"double",OP_WRITE));
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pecell,4,"double",OP_READ),
op_arg_dat(p_q, 1,pecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pecell,1,"double",OP_READ),
op_arg_dat(p_adt, 1,pecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pecell,4,"double",OP_INC ),
op_arg_dat(p_res, 1,pecell,4,"double",OP_INC ));
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"double",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ),
op_arg_dat(center, -1, OP_ID, 3, "double", OP_WRITE),
op_arg_dat(pres, -1, OP_ID, 1, "double", OP_WRITE));
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"double",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"double",OP_READ ),
op_arg_gbl(&rms,1,"double",OP_INC));
}
// print iteration history
rms = sqrt(rms/(double)g_ncell);
if (iter%100 == 0) {
op_printf(" %d %10.5e \n",iter,rms);
//Export data
op_dat arr[] = {p_bound, center, pres};
op_export_data(handle, 3, arr);
//Import data
op_dat arr2[] = {p_bound2, center2, pres2};
op_import_data(handle2, 3, arr2);
//check whether the two are the same
op_par_loop(comparethem, "comparethem", bedges,
op_arg_dat(p_bound,-1, OP_ID, 1, "int", OP_READ),
op_arg_dat(p_bound2,-1, OP_ID, 1, "int", OP_READ),
op_arg_dat(center,-1, OP_ID, 3, "double", OP_READ),
op_arg_dat(center2,-1, OP_ID, 3, "double", OP_READ),
op_arg_dat(pres,-1, OP_ID, 1, "double", OP_READ),
op_arg_dat(pres2,-1, OP_ID, 1, "double", OP_READ));
}
}
op_timers(&cpu_t2, &wall_t2);
double* q = (double *)malloc(sizeof(double)*op_get_size(cells)*4);
op_fetch_data_hdf5(p_q, q, 0, op_get_size(cells)-1);
free(q);
op_fetch_data_hdf5_file(p_q, "file_name.h5");
//printf("Root process = %d\n",op_is_root());
//output the result dat array to files
//op_write_hdf5("new_grid_out.h5");
//compress using
// ~/hdf5/bin/h5repack -f GZIP=9 new_grid.h5 new_grid_pack.h5
op_timing_output();
op_printf("Max total runtime = \n%f\n",wall_t2-wall_t1);
op_exit();
}
int main(int argc, char **argv){
int *becell, *ecell, *bound, *bedge, *edge, *cell;
float *x, *q, *qold, *adt, *res;
int nnode,ncell,nedge,nbedge,niter;
float rms;
// read in grid
printf("reading in grid \n");
FILE *fp;
if ( (fp = fopen("new_grid.dat","r")) == NULL) {
printf("can't open file new_grid.dat\n"); exit(-1);
}
if (fscanf(fp,"%d %d %d %d \n",&nnode, &ncell, &nedge, &nbedge) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
cell = (int *) malloc(4*ncell*sizeof(int));
edge = (int *) malloc(2*nedge*sizeof(int));
ecell = (int *) malloc(2*nedge*sizeof(int));
bedge = (int *) malloc(2*nbedge*sizeof(int));
becell = (int *) malloc( nbedge*sizeof(int));
bound = (int *) malloc( nbedge*sizeof(int));
x = (float *) malloc(2*nnode*sizeof(float));
q = (float *) malloc(4*ncell*sizeof(float));
qold = (float *) malloc(4*ncell*sizeof(float));
res = (float *) malloc(4*ncell*sizeof(float));
adt = (float *) malloc( ncell*sizeof(float));
for (int n=0; n<nnode; n++) {
if (fscanf(fp,"%f %f \n",&x[2*n], &x[2*n+1]) != 2) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<ncell; n++) {
if (fscanf(fp,"%d %d %d %d \n",&cell[4*n ], &cell[4*n+1],
&cell[4*n+2], &cell[4*n+3]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&edge[2*n], &edge[2*n+1],
&ecell[2*n],&ecell[2*n+1]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nbedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&bedge[2*n],&bedge[2*n+1],
&becell[n], &bound[n]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
fclose(fp);
// set constants and initialise flow field and residual
printf("initialising flow field \n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
float mach = 0.4f;
float alpha = 3.0f*atan(1.0f)/45.0f;
float p = 1.0f;
float r = 1.0f;
float u = sqrt(gam*p/r)*mach;
float e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
for (int n=0; n<ncell; n++) {
for (int m=0; m<4; m++) {
q[4*n+m] = qinf[m];
res[4*n+m] = 0.0f;
}
}
// OP initialisation
printf("OP init\n");
op_init(argc,argv,7);
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_set bedges = op_decl_set(nbedge, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pedge = op_decl_map(edges, nodes,2,edge, "pedge");
op_map pecell = op_decl_map(edges, cells,2,ecell, "pecell");
op_map pbedge = op_decl_map(bedges,nodes,2,bedge, "pbedge");
op_map pbecell = op_decl_map(bedges,cells,1,becell,"pbecell");
op_map pcell = op_decl_map(cells, nodes,4,cell, "pcell");
op_dat p_bound = op_decl_dat(bedges,1,"int" ,bound,"p_bound");
op_dat p_x = op_decl_dat(nodes ,2,"float",x ,"p_x");
op_dat p_q = op_decl_dat(cells ,4,"float",q ,"p_q");
op_dat p_qold = op_decl_dat(cells ,4,"float",qold ,"p_qold");
op_dat p_adt = op_decl_dat(cells ,1,"float",adt ,"p_adt");
op_dat p_res = op_decl_dat(cells ,4,"float",res ,"p_res");
op_decl_const(1,"float",&gam );
op_decl_const(1,"float",&gm1 );
op_decl_const(1,"float",&cfl );
op_decl_const(1,"float",&eps );
op_decl_const(1,"float",&mach );
op_decl_const(1,"float",&alpha);
op_decl_const(4,"float",qinf );
op_tuner *OP_tuner;
op_diagnostic_output();
// main time-marching loop
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
// save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"float",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"float",OP_WRITE),
NULL);
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,"float",OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,"float",OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,"float",OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,"float",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"float",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"float",OP_WRITE),
NULL);
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,"float",OP_READ),
op_arg_dat(p_x, 1,pedge, 2,"float",OP_READ),
op_arg_dat(p_q, 0,pecell,4,"float",OP_READ),
op_arg_dat(p_q, 1,pecell,4,"float",OP_READ),
op_arg_dat(p_adt, 0,pecell,1,"float",OP_READ),
op_arg_dat(p_adt, 1,pecell,1,"float",OP_READ),
op_arg_dat(p_res, 0,pecell,4,"float",OP_INC ),
op_arg_dat(p_res, 1,pecell,4,"float",OP_INC ),
NULL);
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,"float",OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,"float",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"float",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"float",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"float",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ),
NULL);
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"float",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"float",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"float",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"float",OP_READ ),
op_arg_gbl(&rms,1,"float",OP_INC),
NULL);
}
// print iteration history
rms = sqrt(rms/(float) ncell);
if (iter%100 == 0)
printf(" %d %10.5e \n",iter,rms);
}
op_timing_output();
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
//MPI for user I/O
int my_rank;
int comm_size;
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
int *pp;
double *A, *r, *u, *du;
int nnode, nedge;
/**------------------------BEGIN I/O and PARTITIONING ---------------------**/
int g_nnode, g_nedge, g_n, g_e;
g_nnode = (NN-1)*(NN-1);
g_nedge = (NN-1)*(NN-1) + 4*(NN-1)*(NN-2);
int *g_pp = 0;
double *g_A = 0, *g_r = 0, *g_u = 0, *g_du = 0;
op_printf("Global number of nodes, edges = %d, %d\n",g_nnode,g_nedge);
if(my_rank == MPI_ROOT) {
g_pp = (int *)malloc(sizeof(int)*2*g_nedge);
g_A = (double *)malloc(sizeof(double)*g_nedge);
g_r = (double *)malloc(sizeof(double)*g_nnode);
g_u = (double *)malloc(sizeof(double)*g_nnode);
g_du = (double *)malloc(sizeof(double)*g_nnode);
// create matrix and r.h.s., and set coordinates needed for renumbering / partitioning
g_e = 0;
for (int i=1; i<NN; i++) {
for (int j=1; j<NN; j++) {
g_n = i-1 + (j-1)*(NN-1);
g_r[g_n] = 0.0f;
g_u[g_n] = 0.0f;
g_du[g_n] = 0.0f;
g_pp[2*g_e] = g_n;
g_pp[2*g_e+1] = g_n;
g_A[g_e] = -1.0f;
g_e++;
for (int pass=0; pass<4; pass++) {
int i2 = i;
int j2 = j;
if (pass==0) i2 += -1;
if (pass==1) i2 += 1;
if (pass==2) j2 += -1;
if (pass==3) j2 += 1;
if ( (i2==0) || (i2==NN) || (j2==0) || (j2==NN) ) {
g_r[g_n] += 0.25f;
}
else {
g_pp[2*g_e] = g_n;
g_pp[2*g_e+1] = i2-1 + (j2-1)*(NN-1);
g_A[g_e] = 0.25f;
g_e++;
}
}
}
}
}
/* Compute local sizes */
nnode = compute_local_size (g_nnode, comm_size, my_rank);
nedge = compute_local_size (g_nedge, comm_size, my_rank);
op_printf("Number of nodes, edges on process %d = %d, %d\n"
,my_rank,nnode,nedge);
/*Allocate memory to hold local sets, mapping tables and data*/
pp = (int *)malloc(2*sizeof(int)*nedge);
A = (double *) malloc(nedge*sizeof(double));
r = (double *) malloc(nnode*sizeof(double));
u = (double *) malloc(nnode*sizeof(double));
du = (double *) malloc(nnode*sizeof(double));
/* scatter sets, mappings and data on sets*/
scatter_int_array(g_pp, pp, comm_size, g_nedge,nedge, 2);
scatter_double_array(g_A, A, comm_size, g_nedge,nedge, 1);
scatter_double_array(g_r, r, comm_size, g_nnode,nnode, 1);
scatter_double_array(g_u, u, comm_size, g_nnode,nnode, 1);
scatter_double_array(g_du, du, comm_size, g_nnode,nnode, 1);
/*Freeing memory allocated to gloabal arrays on rank 0
after scattering to all processes*/
if(my_rank == MPI_ROOT) {
free(g_pp);
free(g_A);
free(g_r);
free(g_u);
free(g_du);
}
/**------------------------END I/O and PARTITIONING ---------------------**/
// declare sets, pointers, and datasets
op_set nodes = op_decl_set(nnode,"nodes");
op_set edges = op_decl_set(nedge,"edges");
op_map ppedge = op_decl_map(edges,nodes,2,pp, "ppedge");
op_dat p_A = op_decl_dat(edges,1,"double", A, "p_A" );
op_dat p_r = op_decl_dat(nodes,1,"double", r, "p_r" );
op_dat p_u = op_decl_dat(nodes,1,"double", u, "p_u" );
op_dat p_du = op_decl_dat(nodes,1,"double", du,"p_du");
alpha = 1.0f;
op_decl_const(1,"double",&alpha);
op_diagnostic_output();
//trigger partitioning and halo creation routines
op_partition("PTSCOTCH", "KWAY", NULL, NULL, NULL);
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
// main iteration loop
double u_sum, u_max, beta = 1.0f;
for (int iter=0; iter<NITER; iter++) {
op_par_loop(res,"res", edges,
op_arg_dat(p_A, -1,OP_ID, 1,"double", OP_READ),
op_arg_dat(p_u, 1,ppedge, 1,"double", OP_READ),
op_arg_dat(p_du, 0,ppedge, 1,"double", OP_INC),
op_arg_gbl(&beta, 1,"double", OP_READ));
u_sum = 0.0f;
u_max = 0.0f;
op_par_loop(update,"update", nodes,
op_arg_dat(p_r, -1,OP_ID, 1,"double",OP_READ),
op_arg_dat(p_du, -1,OP_ID, 1,"double",OP_RW),
op_arg_dat(p_u, -1,OP_ID, 1,"double",OP_INC),
op_arg_gbl(&u_sum,1,"double",OP_INC),
op_arg_gbl(&u_max,1,"double",OP_MAX));
op_printf("\n u max/rms = %f %f \n\n",u_max, sqrt(u_sum/g_nnode));
}
op_timers(&cpu_t2, &wall_t2);
//get results data array
op_dat temp = op_mpi_get_data(p_u);
//output the result dat array to files
print_dat_tofile(temp, "out_grid.dat"); //ASCI
//print_dat_tobinfile(temp, "out_grid.bin"); //Binary
//print each mpi process's timing info for each kernel
op_timing_output();
//print total time for niter interations
op_printf("Max total runtime = %f\n",wall_t2-wall_t1);
op_exit();
}
int main(int argc, char **argv){
int nnode, nedge, n, e;
float dx;
op_set nodes, edges;
op_map ppedge;
op_dat p_A, p_r, p_u, p_du, p_beta, p_u_sum, p_u_max;
nnode = (NN-1)*(NN-1);
nedge = (NN-1)*(NN-1) + 4*(NN-1)*(NN-2);
dx = 1.0f / ((float) NN);
int *pp = (int *)malloc(sizeof(int)*2*nedge);
float *A = (float *)malloc(sizeof(float)*nedge);
float *r = (float *)malloc(sizeof(float)*nnode);
float *u = (float *)malloc(sizeof(float)*nnode);
float *du = (float *)malloc(sizeof(float)*nnode);
/* create matrix and r.h.s., and set coordinates needed for renumbering / partitioning */
e = 0;
for (int i=1; i<NN; i++) {
for (int j=1; j<NN; j++) {
n = i-1 + (j-1)*(NN-1);
r[n] = 0.0f;
u[n] = 0.0f;
du[n] = 0.0f;
pp[2*e] = n;
pp[2*e+1] = n;
A[e] = -1.0f;
e++;
for (int pass=0; pass<4; pass++) {
int i2 = i;
int j2 = j;
if (pass==0) i2 += -1;
if (pass==1) i2 += 1;
if (pass==2) j2 += -1;
if (pass==3) j2 += 1;
if ( (i2==0) || (i2==NN) || (j2==0) || (j2==NN) ) {
r[n] += 0.25f;
} else {
pp[2*e] = n;
pp[2*e+1] = i2-1 + (j2-1)*(NN-1);
A[e] = 0.25f;
e++;
}
}
}
}
float u_sum, u_max, beta = 1.0f;
/* OP initialisation */
op_init(argc,argv,5);
/* declare sets, pointers, and datasets */
op_decl_set(&nodes,nnode, "nodes");
op_decl_set(&edges,nedge, "edges");
op_decl_map(&ppedge,&edges,&nodes,2,pp, "ppedge");
op_decl_vec(&p_A, &edges,1,sizeof(float), A, "p_A" );
op_decl_vec(&p_r, &nodes,1,sizeof(float), r, "p_r" );
op_decl_vec(&p_u, &nodes,1,sizeof(float), u, "p_u" );
op_decl_vec(&p_du,&nodes,1,sizeof(float), du, "p_du");
op_decl_gbl(&p_beta, 1,sizeof(float), &beta, "p_beta");
op_decl_gbl(&p_u_sum, 1,sizeof(float), &u_sum, "p_u_sum");
op_decl_gbl(&p_u_max, 1,sizeof(float), &u_max, "p_u_max");
alpha = 1.0f;
op_decl_const(&alpha,1,sizeof(float));
op_diagnostic_output();
/* main iteration loop */
for (int iter=0; iter<NITER; iter++) {
op_par_loop_4((void(*)(void*,void*,void*,void*))res,"res", &edges,
op_construct_vec_arg(&p_A, OP_NONE, NULL, OP_READ),
op_construct_vec_arg(&p_u, 1,&ppedge, OP_READ),
op_construct_vec_arg(&p_du, 0,&ppedge, OP_INC),
op_construct_gbl_arg(&p_beta,OP_READ));
u_sum = 0.0f;
u_max = 0.0f;
op_par_loop_5((void(*)(void*,void*,void*,void*,void*))update,"update", &nodes,
op_construct_vec_arg(&p_r, OP_NONE, NULL, OP_READ),
op_construct_vec_arg(&p_du, OP_NONE, NULL, OP_RW),
op_construct_vec_arg(&p_u, OP_NONE, NULL, OP_INC),
op_construct_gbl_arg(&p_u_sum,OP_INC),
op_construct_gbl_arg(&p_u_max,OP_MAX));
printf("\n u max/rms = %f %f \n\n",u_max, sqrt(u_sum/nnode));
}
/* print out results */
printf("\n Results after %d iterations:\n\n",NITER);
op_fetch_data(p_u);
/*
op_fetch_data(p_du);
op_fetch_data(p_r);
*/
for (int pass=0; pass<1; pass++) {
/*
if(pass==0) printf("\narray u\n");
else if(pass==1) printf("\narray du\n");
else if(pass==2) printf("\narray r\n");
*/
for (int j=NN-1; j>0; j--) {
for (int i=1; i<NN; i++) {
if (pass==0)
printf(" %7.4f",u[i-1 + (j-1)*(NN-1)]);
else if (pass==1)
printf(" %7.4f",du[i-1 + (j-1)*(NN-1)]);
else if (pass==2)
printf(" %7.4f",r[i-1 + (j-1)*(NN-1)]);
}
printf("\n");
}
printf("\n");
}
op_timing_output();
op_exit();
}
//
// main program
//
int main(int argc, char **argv){
int my_rank;
int comm_size;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
double time;
double max_time;
int *becell, *ecell, *bound, *bedge, *edge, *cell;
double *x, *q, *qold, *adt, *res;
int niter;
double rms;
op_timers(&cpu_t1, &wall_t1);
// set constants
if(my_rank == MPI_ROOT )printf("initialising flow field\n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
double mach = 0.4f;
double alpha = 3.0f*atan(1.0f)/45.0f;
double p = 1.0f;
double r = 1.0f;
double u = sqrt(gam*p/r)*mach;
double e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
// OP initialisation
op_init(argc,argv,2);
/**------------------------BEGIN Parallel I/O -------------------**/
char file[] = "new_grid.h5";//"new_grid-26mil.h5";//"new_grid.h5";
// declare sets, pointers, datasets and global constants - reading in from file
op_set nodes = op_decl_set_hdf5(file, "nodes");
op_set edges = op_decl_set_hdf5(file, "edges");
op_set bedges = op_decl_set_hdf5(file, "bedges");
op_set cells = op_decl_set_hdf5(file, "cells");
op_map pedge = op_decl_map_hdf5(edges, nodes, 2, file, "pedge");
op_map pecell = op_decl_map_hdf5(edges, cells,2, file, "pecell");
op_map pbedge = op_decl_map_hdf5(bedges,nodes,2, file, "pbedge");
op_map pbecell = op_decl_map_hdf5(bedges,cells,1, file, "pbecell");
op_map pcell = op_decl_map_hdf5(cells, nodes,4, file, "pcell");
op_dat p_bound = op_decl_dat_hdf5(bedges,1,"int" ,file,"p_bound");
op_dat p_x = op_decl_dat_hdf5(nodes ,2,"double",file,"p_x");
op_dat p_q = op_decl_dat_hdf5(cells ,4,"double",file,"p_q");
op_dat p_qold = op_decl_dat_hdf5(cells ,4,"double",file,"p_qold");
op_dat p_adt = op_decl_dat_hdf5(cells ,1,"double",file,"p_adt");
op_dat p_res = op_decl_dat_hdf5(cells ,4,"double",file,"p_res");
/**------------------------END Parallel I/O -----------------------**/
op_timers(&cpu_t2, &wall_t2);
time = wall_t2-wall_t1;
MPI_Reduce(&time,&max_time,1,MPI_DOUBLE, MPI_MAX,MPI_ROOT, MPI_COMM_WORLD);
if(my_rank==MPI_ROOT)printf("Max total file read time = %f\n",max_time);
op_decl_const(1,"double",&gam );
op_decl_const(1,"double",&gm1 );
op_decl_const(1,"double",&cfl );
op_decl_const(1,"double",&eps );
op_decl_const(1,"double",&mach );
op_decl_const(1,"double",&alpha);
op_decl_const(4,"double",qinf );
op_diagnostic_output();
//write back original data just to compare you read the file correctly
//do an h5diff between new_grid_writeback.h5 and new_grid.h5 to
//compare two hdf5 files
op_write_hdf5("new_grid_out.h5");
//partition with ParMetis
//op_partition_geom(p_x);
//op_partition_random(cells);
//op_partition_kway(pecell);
//op_partition_geomkway(p_x, pcell);
//partition with PT-Scotch
op_partition_ptscotch(pecell);
//create halos
op_halo_create();
int g_ncell = 0;
int* sizes = (int *)malloc(sizeof(int)*comm_size);
MPI_Allgather(&cells->size, 1, MPI_INT, sizes, 1, MPI_INT, MPI_COMM_WORLD);
for(int i = 0; i<comm_size; i++)g_ncell = g_ncell + sizes[i];
free(sizes);
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
//save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_WRITE));
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"double",OP_WRITE));
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pecell,4,"double",OP_READ),
op_arg_dat(p_q, 1,pecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pecell,1,"double",OP_READ),
op_arg_dat(p_adt, 1,pecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pecell,4,"double",OP_INC ),
op_arg_dat(p_res, 1,pecell,4,"double",OP_INC ));
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"double",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ));
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"double",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"double",OP_READ ),
op_arg_gbl(&rms,1,"double",OP_INC));
}
//print iteration history
if(my_rank==MPI_ROOT)
{
rms = sqrt(rms/(double) g_ncell);
if (iter%100 == 0)
printf("%d %10.5e \n",iter,rms);
}
}
op_timers(&cpu_t2, &wall_t2);
//get results data array
op_dat temp = op_mpi_get_data(p_q);
//output the result dat array to files
//op_write_hdf5("new_grid_out.h5");
//compress using
// ~/hdf5/bin/h5repack -f GZIP=9 new_grid.h5 new_grid_pack.h5
//free memory allocated to halos
op_halo_destroy();
//return all op_dats, op_maps back to original element order
op_partition_reverse();
//print each mpi process's timing info for each kernel
op_mpi_timing_output();
//print total time for niter interations
time = wall_t2-wall_t1;
MPI_Reduce(&time,&max_time,1,MPI_DOUBLE, MPI_MAX,MPI_ROOT, MPI_COMM_WORLD);
if(my_rank==MPI_ROOT)printf("Max total runtime = %f\n",max_time);
op_exit();
MPI_Finalize(); //user mpi finalize
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
//MPI for user I/O
int my_rank;
int comm_size;
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
int *becell, *ecell, *bound, *bedge, *edge, *cell;
float *x, *q, *qold, *adt, *res;
int nnode,ncell,nedge,nbedge,niter;
float rms;
/**------------------------BEGIN I/O and PARTITIONING -------------------**/
op_timers(&cpu_t1, &wall_t1);
/* read in grid from disk on root processor */
FILE *fp;
if ( (fp = fopen("new_grid.dat","r")) == NULL) {
op_printf("can't open file new_grid.dat\n"); exit(-1);
}
int g_nnode,g_ncell,g_nedge,g_nbedge;
check_scan(fscanf(fp,"%d %d %d %d \n",&g_nnode, &g_ncell, &g_nedge, &g_nbedge), 4);
int *g_becell = 0, *g_ecell = 0, *g_bound = 0, *g_bedge = 0, *g_edge = 0, *g_cell = 0;
float *g_x = 0,*g_q = 0, *g_qold = 0, *g_adt = 0, *g_res = 0;
// set constants
op_printf("initialising flow field\n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
float mach = 0.4f;
float alpha = 3.0f*atan(1.0f)/45.0f;
float p = 1.0f;
float r = 1.0f;
float u = sqrt(gam*p/r)*mach;
float e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
op_printf("reading in grid \n");
op_printf("Global number of nodes, cells, edges, bedges = %d, %d, %d, %d\n"
,g_nnode,g_ncell,g_nedge,g_nbedge);
if(my_rank == MPI_ROOT) {
g_cell = (int *) malloc(4*g_ncell*sizeof(int));
g_edge = (int *) malloc(2*g_nedge*sizeof(int));
g_ecell = (int *) malloc(2*g_nedge*sizeof(int));
g_bedge = (int *) malloc(2*g_nbedge*sizeof(int));
g_becell = (int *) malloc( g_nbedge*sizeof(int));
g_bound = (int *) malloc( g_nbedge*sizeof(int));
g_x = (float *) malloc(2*g_nnode*sizeof(float));
g_q = (float *) malloc(4*g_ncell*sizeof(float));
g_qold = (float *) malloc(4*g_ncell*sizeof(float));
g_res = (float *) malloc(4*g_ncell*sizeof(float));
g_adt = (float *) malloc( g_ncell*sizeof(float));
for (int n=0; n<g_nnode; n++){
check_scan(fscanf(fp,"%f %f \n",&g_x[2*n], &g_x[2*n+1]), 2);
}
for (int n=0; n<g_ncell; n++) {
check_scan(fscanf(fp,"%d %d %d %d \n",&g_cell[4*n ], &g_cell[4*n+1],
&g_cell[4*n+2], &g_cell[4*n+3]), 4);
}
for (int n=0; n<g_nedge; n++) {
check_scan(fscanf(fp,"%d %d %d %d \n",&g_edge[2*n],&g_edge[2*n+1],
&g_ecell[2*n],&g_ecell[2*n+1]), 4);
}
for (int n=0; n<g_nbedge; n++) {
check_scan(fscanf(fp,"%d %d %d %d \n",&g_bedge[2*n],&g_bedge[2*n+1],
&g_becell[n],&g_bound[n]), 4);
}
//initialise flow field and residual
for (int n=0; n<g_ncell; n++) {
for (int m=0; m<4; m++) {
g_q[4*n+m] = qinf[m];
g_res[4*n+m] = 0.0f;
}
}
}
fclose(fp);
nnode = compute_local_size (g_nnode, comm_size, my_rank);
ncell = compute_local_size (g_ncell, comm_size, my_rank);
nedge = compute_local_size (g_nedge, comm_size, my_rank);
nbedge = compute_local_size (g_nbedge, comm_size, my_rank);
op_printf("Number of nodes, cells, edges, bedges on process %d = %d, %d, %d, %d\n"
,my_rank,nnode,ncell,nedge,nbedge);
/*Allocate memory to hold local sets, mapping tables and data*/
cell = (int *) malloc(4*ncell*sizeof(int));
edge = (int *) malloc(2*nedge*sizeof(int));
ecell = (int *) malloc(2*nedge*sizeof(int));
bedge = (int *) malloc(2*nbedge*sizeof(int));
becell = (int *) malloc( nbedge*sizeof(int));
bound = (int *) malloc( nbedge*sizeof(int));
x = (float *) malloc(2*nnode*sizeof(float));
q = (float *) malloc(4*ncell*sizeof(float));
qold = (float *) malloc(4*ncell*sizeof(float));
res = (float *) malloc(4*ncell*sizeof(float));
adt = (float *) malloc( ncell*sizeof(float));
/* scatter sets, mappings and data on sets*/
scatter_int_array(g_cell, cell, comm_size, g_ncell,ncell, 4);
scatter_int_array(g_edge, edge, comm_size, g_nedge,nedge, 2);
scatter_int_array(g_ecell, ecell, comm_size, g_nedge,nedge, 2);
scatter_int_array(g_bedge, bedge, comm_size, g_nbedge,nbedge, 2);
scatter_int_array(g_becell, becell, comm_size, g_nbedge,nbedge, 1);
scatter_int_array(g_bound, bound, comm_size, g_nbedge,nbedge, 1);
scatter_float_array(g_x, x, comm_size, g_nnode,nnode, 2);
scatter_float_array(g_q, q, comm_size, g_ncell,ncell, 4);
scatter_float_array(g_qold, qold, comm_size, g_ncell,ncell, 4);
scatter_float_array(g_res, res, comm_size, g_ncell,ncell, 4);
scatter_float_array(g_adt, adt, comm_size, g_ncell,ncell, 1);
/*Freeing memory allocated to gloabal arrays on rank 0
after scattering to all processes*/
if(my_rank == MPI_ROOT) {
free(g_cell);
free(g_edge);
free(g_ecell);
free(g_bedge);
free(g_becell);
free(g_bound);
free(g_x );
free(g_q);
free(g_qold);
free(g_adt);
free(g_res);
}
op_timers(&cpu_t2, &wall_t2);
op_printf("Max total file read time = %f\n", wall_t2-wall_t1);
/**------------------------END I/O and PARTITIONING -----------------------**/
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_set bedges = op_decl_set(nbedge, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pedge = op_decl_map(edges, nodes,2,edge, "pedge");
op_map pecell = op_decl_map(edges, cells,2,ecell, "pecell");
op_map pbedge = op_decl_map(bedges,nodes,2,bedge, "pbedge");
op_map pbecell = op_decl_map(bedges,cells,1,becell,"pbecell");
op_map pcell = op_decl_map(cells, nodes,4,cell, "pcell");
op_dat p_bound = op_decl_dat(bedges,1,"int" ,bound,"p_bound");
op_dat p_x = op_decl_dat(nodes ,2,"float",x ,"p_x");
op_dat p_q = op_decl_dat(cells ,4,"float",q ,"p_q");
op_dat p_qold = op_decl_dat(cells ,4,"float",qold ,"p_qold");
op_dat p_adt = op_decl_dat(cells ,1,"float",adt ,"p_adt");
op_dat p_res = op_decl_dat(cells ,4,"float",res ,"p_res");
op_decl_const(1,"float",&gam );
op_decl_const(1,"float",&gm1 );
op_decl_const(1,"float",&cfl );
op_decl_const(1,"float",&eps );
op_decl_const(1,"float",&mach );
op_decl_const(1,"float",&alpha);
op_decl_const(4,"float",qinf );
op_diagnostic_output();
//trigger partitioning and halo creation routines
op_partition("PTSCOTCH", "KWAY", NULL, pecell, p_x);
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
//save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"float",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"float",OP_WRITE));
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,"float",OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,"float",OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,"float",OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,"float",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"float",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"float",OP_WRITE));
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,"float",OP_READ),
op_arg_dat(p_x, 1,pedge, 2,"float",OP_READ),
op_arg_dat(p_q, 0,pecell,4,"float",OP_READ),
op_arg_dat(p_q, 1,pecell,4,"float",OP_READ),
op_arg_dat(p_adt, 0,pecell,1,"float",OP_READ),
op_arg_dat(p_adt, 1,pecell,1,"float",OP_READ),
op_arg_dat(p_res, 0,pecell,4,"float",OP_INC ),
op_arg_dat(p_res, 1,pecell,4,"float",OP_INC ));
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,"float",OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,"float",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"float",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"float",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"float",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ));
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"float",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"float",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"float",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"float",OP_READ ),
op_arg_gbl(&rms,1,"float",OP_INC));
}
//print iteration history
rms = sqrt(rms/(float) g_ncell);
if (iter%100 == 0)
op_printf("%d %10.5e \n",iter,rms);
}
op_timers(&cpu_t2, &wall_t2);
//get results data array - perhaps can be later handled by a remporary dat
//op_dat temp = op_mpi_get_data(p_q);
//output the result dat array to files
//print_dat_tofile(temp, "out_grid.dat"); //ASCI
//print_dat_tobinfile(temp, "out_grid.bin"); //Binary
op_timing_output();
//print total time for niter interations
op_printf("Max total runtime = %f\n",wall_t2-wall_t1);
op_exit();
free(cell);
free(edge);
free(ecell);
free(bedge);
free(becell);
free(bound);
free(x);
free(q);
free(qold);
free(res);
free(adt);
}
int main(int argc,char *argv[])
{
int *becell;
int *ecell;
int *bound;
int *bedge;
int *edge;
int *cell;
float *x;
float *q;
float *qold;
float *adt;
float *res;
int nnode;
int ncell;
int nedge;
int nbedge;
int niter;
float rms;
if (argc != 2) {
printf("Usage: airfoil <grid>\n");
exit(1);
}
// read in grid
printf("reading in grid \n");
char *grid = argv[1];
FILE *fp;
if ((fp = fopen(grid,"r")) == 0L) {
printf("can\'t open file %s\n",grid);
exit((-1));
}
if (fscanf(fp,"%d %d %d %d \n",&nnode,&ncell,&nedge,&nbedge) != 4) {
printf("error reading from %s\n",grid);
exit((-1));
}
cell = ((int *)(malloc(((4 * ncell) * (sizeof(int ))))));
edge = ((int *)(malloc(((2 * nedge) * (sizeof(int ))))));
ecell = ((int *)(malloc(((2 * nedge) * (sizeof(int ))))));
bedge = ((int *)(malloc(((2 * nbedge) * (sizeof(int ))))));
becell = ((int *)(malloc((nbedge * (sizeof(int ))))));
bound = ((int *)(malloc((nbedge * (sizeof(int ))))));
x = ((float *)(malloc(((2 * nnode) * (sizeof(float ))))));
q = ((float *)(malloc(((4 * ncell) * (sizeof(float ))))));
qold = ((float *)(malloc(((4 * ncell) * (sizeof(float ))))));
res = ((float *)(malloc(((4 * ncell) * (sizeof(float ))))));
adt = ((float *)(malloc((ncell * (sizeof(float ))))));
for (int n = 0; n < nnode; n++) {
if (fscanf(fp,"%f %f \n",(x + (2 * n)),(x + ((2 * n) + 1))) != 2) {
printf("error reading from new_grid.dat\n");
exit((-1));
}
}
for (int n = 0; n < ncell; n++) {
if (fscanf(fp,"%d %d %d %d \n",(cell + (4 * n)),(cell + ((4 * n) + 1)),(cell + ((4 * n) + 2)),(cell + ((4 * n) + 3))) != 4) {
printf("error reading from new_grid.dat\n");
exit((-1));
}
}
for (int n = 0; n < nedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",(edge + (2 * n)),(edge + ((2 * n) + 1)),(ecell + (2 * n)),(ecell + ((2 * n) + 1))) != 4) {
printf("error reading from new_grid.dat\n");
exit((-1));
}
}
for (int n = 0; n < nbedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",(bedge + (2 * n)),(bedge + ((2 * n) + 1)),(becell + n),(bound + n)) != 4) {
printf("error reading from new_grid.dat\n");
exit((-1));
}
}
fclose(fp);
// set constants and initialise flow field and residual
printf("initialising flow field \n");
gam = 1.4f;
gm1 = (gam - 1.0f);
cfl = 0.9f;
eps = 0.05f;
float mach = 0.4f;
float alpha = ((3.0f * atan(1.0f)) / 45.0f);
float p = 1.0f;
float r = 1.0f;
float u = (sqrt(((gam * p) / r)) * mach);
float e = ((p / (r * gm1)) + ((0.5f * u) * u));
qinf[0] = r;
qinf[1] = (r * u);
qinf[2] = 0.0f;
qinf[3] = (r * e);
for (int n = 0; n < ncell; n++) {
for (int m = 0; m < 4; m++) {
q[(4 * n) + m] = qinf[m];
res[(4 * n) + m] = 0.0f;
}
}
// OP initialisation
op_init(argc,argv,2);
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode,"nodes");
op_set edges = op_decl_set(nedge,"edges");
op_set bedges = op_decl_set(nbedge,"bedges");
op_set cells = op_decl_set(ncell,"cells");
op_map pedge = op_decl_map(edges,nodes,2,edge,"pedge");
op_map pecell = op_decl_map(edges,cells,2,ecell,"pecell");
op_map pbedge = op_decl_map(bedges,nodes,2,bedge,"pbedge");
op_map pbecell = op_decl_map(bedges,cells,1,becell,"pbecell");
op_map pcell = op_decl_map(cells,nodes,4,cell,"pcell");
op_dat p_bound = op_decl_dat(bedges,1,"int",bound,"p_bound");
op_dat p_x = op_decl_dat(nodes,2,"float",x,"p_x");
op_dat p_q = op_decl_dat(cells,4,"float",q,"p_q");
op_dat p_qold = op_decl_dat(cells,4,"float",qold,"p_qold");
op_dat p_adt = op_decl_dat(cells,1,"float",adt,"p_adt");
op_dat p_res = op_decl_dat(cells,4,"float",res,"p_res");
op_decl_const(1,"float",&gam);
op_decl_const(1,"float",&gm1);
op_decl_const(1,"float",&cfl);
op_decl_const(1,"float",&eps);
op_decl_const(1,"float",&mach);
op_decl_const(1,"float",&alpha);
op_decl_const(4,"float",qinf);
op_diagnostic_output();
// main time-marching loop
niter = 1000;
for (int iter = 1; iter <= niter; iter++) {
// save old flow solution
save_soln_host("save_soln_modified",cells,op_arg_dat(p_q,(-1), OP_ID,4,"float",OP_READ),op_arg_dat(p_qold,(-1), OP_ID,4,"float",OP_WRITE));
// predictor/corrector update loop
for (int k = 0; k < 2; k++) {
// calculate area/timstep
adt_calc_host("adt_calc_modified",cells,op_arg_dat(p_x,0,pcell,2,"float",OP_READ),op_arg_dat(p_x,1,pcell,2,"float",OP_READ),op_arg_dat(p_x,2,pcell,2,"float",OP_READ),op_arg_dat(p_x,3,pcell,2,"float",OP_READ),op_arg_dat(p_q,(-1), OP_ID,4,"float",OP_READ),op_arg_dat(p_adt,(-1), OP_ID,1,"float",OP_WRITE));
// calculate flux residual
res_calc_host("res_calc_modified",edges,op_arg_dat(p_x,0,pedge,2,"float",OP_READ),op_arg_dat(p_x,1,pedge,2,"float",OP_READ),op_arg_dat(p_q,0,pecell,4,"float",OP_READ),op_arg_dat(p_q,1,pecell,4,"float",OP_READ),op_arg_dat(p_adt,0,pecell,1,"float",OP_READ),op_arg_dat(p_adt,1,pecell,1,"float",OP_READ),op_arg_dat(p_res,0,pecell,4,"float",OP_INC),op_arg_dat(p_res,1,pecell,4,"float",OP_INC));
bres_calc_host("bres_calc_modified",bedges,op_arg_dat(p_x,0,pbedge,2,"float",OP_READ),op_arg_dat(p_x,1,pbedge,2,"float",OP_READ),op_arg_dat(p_q,0,pbecell,4,"float",OP_READ),op_arg_dat(p_adt,0,pbecell,1,"float",OP_READ),op_arg_dat(p_res,0,pbecell,4,"float",OP_INC),op_arg_dat(p_bound,(-1), OP_ID,1,"int",OP_READ));
// update flow field
rms = 0.0;
update_host("update_modified",cells,op_arg_dat(p_qold,(-1), OP_ID,4,"float",OP_READ),op_arg_dat(p_q,(-1), OP_ID,4,"float",OP_WRITE),op_arg_dat(p_res,(-1), OP_ID,4,"float",OP_RW),op_arg_dat(p_adt,(-1), OP_ID,1,"float",OP_READ),op_arg_gbl(&rms,1,"float",OP_INC));
}
// print iteration history
rms = (sqrt((rms / ((float )ncell))));
if ((iter % 100) == 0)
printf(" %d %10.5e \n",iter,rms);
}
/* for (int ll = 0; ll < (4 * ncell); ll++)
printf("%lf\n",q[ll]);*/
op_timing_output();
return 0;
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
//MPI for user I/O
int my_rank;
int comm_size;
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
int *bnode, *cell, *g_bnode, *g_cell;
double *xm, *g_xm;;
int nnode,ncell,nbnodes,niter, g_nnode, g_ncell, g_nbnodes;
double rms = 1;
// read in grid
op_printf("reading in grid \n");
FILE *fp;
if ( (fp = fopen("FE_grid.dat","r")) == NULL) {
op_printf("can't open file FE_grid.dat\n"); exit(-1);
}
if (fscanf(fp,"%d %d %d \n",&g_nnode, &g_ncell, &g_nbnodes) != 3) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
if (my_rank == MPI_ROOT) {
g_cell = (int *) malloc(4*g_ncell*sizeof(int));
g_bnode = (int *) malloc(g_nbnodes*sizeof(int));
g_xm = (double *) malloc(2*g_nnode*sizeof(double));
for (int n=0; n<g_nnode; n++) {
if (fscanf(fp,"%lf %lf \n",&g_xm[2*n], &g_xm[2*n+1]) != 2) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<g_ncell; n++) {
if (fscanf(fp,"%d %d %d %d \n",&g_cell[4*n ], &g_cell[4*n+1],
&g_cell[4*n+2], &g_cell[4*n+3]) != 4) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<g_nbnodes; n++) {
if (fscanf(fp,"%d \n",&g_bnode[n]) != 1) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
}
fclose(fp);
nnode = compute_local_size (g_nnode, comm_size, my_rank);
ncell = compute_local_size (g_ncell, comm_size, my_rank);
nbnodes = compute_local_size (g_nbnodes, comm_size, my_rank);
cell = (int *) malloc(4*ncell*sizeof(int));
bnode = (int *) malloc(nbnodes*sizeof(int));
xm = (double *) malloc(2*nnode*sizeof(double));
scatter_int_array(g_cell, cell, comm_size, g_ncell,ncell, 4);
scatter_int_array(g_bnode, bnode, comm_size, g_nbnodes,nbnodes, 1);
scatter_double_array(g_xm, xm, comm_size, g_nnode,nnode, 2);
if(my_rank == MPI_ROOT) {
free(g_cell);
free(g_xm);
free(g_bnode);
}
// set constants and initialise flow field and residual
op_printf("initialising flow field \n");
double gam = 1.4;
gm1 = gam - 1.0;
gm1i = 1.0/gm1;
wtg1[0] = 0.5;
wtg1[1] = 0.5;
xi1[0] = 0.211324865405187;
xi1[1] = 0.788675134594813;
Ng1[0] = 0.788675134594813;
Ng1[1] = 0.211324865405187;
Ng1[2] = 0.211324865405187;
Ng1[3] = 0.788675134594813;
Ng1_xi[0] = -1;
Ng1_xi[1] = -1;
Ng1_xi[2] = 1;
Ng1_xi[3] = 1;
wtg2[0] = 0.25;
wtg2[1] = 0.25;
wtg2[2] = 0.25;
wtg2[3] = 0.25;
Ng2[0] = 0.622008467928146; Ng2[1] = 0.166666666666667; Ng2[2] = 0.166666666666667; Ng2[3] = 0.044658198738520;
Ng2[4] = 0.166666666666667; Ng2[5] = 0.622008467928146; Ng2[6] = 0.044658198738520; Ng2[7] = 0.166666666666667;
Ng2[8] = 0.166666666666667; Ng2[9] = 0.044658198738520; Ng2[10] = 0.622008467928146; Ng2[11] = 0.166666666666667;
Ng2[12] = 0.044658198738520; Ng2[13] = 0.166666666666667; Ng2[14] = 0.166666666666667; Ng2[15] = 0.622008467928146;
Ng2_xi[0] = -0.788675134594813; Ng2_xi[1] = 0.788675134594813; Ng2_xi[2] = -0.211324865405187;Ng2_xi[3] = 0.211324865405187;
Ng2_xi[4] = -0.788675134594813; Ng2_xi[5] = 0.788675134594813; Ng2_xi[6] = -0.211324865405187; Ng2_xi[7] = 0.211324865405187;
Ng2_xi[8] = -0.211324865405187; Ng2_xi[9] = 0.211324865405187; Ng2_xi[10] = -0.788675134594813; Ng2_xi[11] = 0.788675134594813;
Ng2_xi[12] = -0.211324865405187; Ng2_xi[13] = 0.211324865405187; Ng2_xi[14] = -0.788675134594813; Ng2_xi[15] = 0.788675134594813;
Ng2_xi[16] = -0.788675134594813; Ng2_xi[17] = -0.211324865405187; Ng2_xi[18] = 0.788675134594813; Ng2_xi[19] = 0.211324865405187;
Ng2_xi[20] = -0.211324865405187; Ng2_xi[21] = -0.788675134594813; Ng2_xi[22] = 0.211324865405187; Ng2_xi[23] = 0.788675134594813;
Ng2_xi[24] = -0.788675134594813; Ng2_xi[25] = -0.211324865405187; Ng2_xi[26] = 0.788675134594813; Ng2_xi[27] = 0.211324865405187;
Ng2_xi[28] = -0.211324865405187; Ng2_xi[29] = -0.788675134594813; Ng2_xi[30] = 0.211324865405187; Ng2_xi[31] = 0.788675134594813;
minf = 0.1;
m2 = minf*minf;
freq = 1;
kappa = 1;
nmode = 0;
mfan = 1.0;
double *phim = (double *)malloc(nnode*sizeof(double));
memset(phim,0,nnode*sizeof(double));
for (int i = 0;i<nnode;i++) {
phim[i] = minf*xm[2*i];
}
double *K = (double *)malloc(4*4*ncell*sizeof(double));
memset(K,0,4*4*ncell*sizeof(double));
double *resm = (double *)malloc(nnode*sizeof(double));
memset(resm,0,nnode*sizeof(double));
double *V = (double *)malloc(nnode*sizeof(double));
memset(V,0,nnode*sizeof(double));
double *P = (double *)malloc(nnode*sizeof(double));
memset(P,0,nnode*sizeof(double));
double *U = (double *)malloc(nnode*sizeof(double));
memset(U,0,nnode*sizeof(double));
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode, "nodes");
op_set bnodes = op_decl_set(nbnodes, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pbnodes = op_decl_map(bnodes,nodes,1,bnode, "pbedge");
op_map pcell = op_decl_map(cells, nodes,4,cell, "pcell");
op_dat p_xm = op_decl_dat(nodes ,2,"double",xm ,"p_x");
op_dat p_phim = op_decl_dat(nodes, 1, "double", phim, "p_phim");
op_dat p_resm = op_decl_dat(nodes, 1, "double", resm, "p_resm");
op_dat p_K = op_decl_dat(cells, 16, "double:soa", K, "p_K");
op_dat p_V = op_decl_dat(nodes, 1, "double", V, "p_V");
op_dat p_P = op_decl_dat(nodes, 1, "double", P, "p_P");
op_dat p_U = op_decl_dat(nodes, 1, "double", U, "p_U");
op_decl_const(1,"double",&gam );
op_decl_const(1,"double",&gm1 );
op_decl_const(1,"double",&gm1i );
op_decl_const(1,"double",&m2 );
op_decl_const(2,"double",wtg1 );
op_decl_const(2,"double",xi1 );
op_decl_const(4,"double",Ng1 );
op_decl_const(4,"double",Ng1_xi );
op_decl_const(4,"double",wtg2 );
op_decl_const(16,"double",Ng2 );
op_decl_const(32,"double",Ng2_xi );
op_decl_const(1,"double",&minf );
op_decl_const(1,"double",&freq );
op_decl_const(1,"double",&kappa );
op_decl_const(1,"double",&nmode );
op_decl_const(1,"double",&mfan );
op_diagnostic_output();
op_partition("PTSCOTCH", "KWAY", cells, pcell, NULL);
// main time-marching loop
niter = 20;
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
for(int iter=1; iter<=niter; iter++) {
op_par_loop(res_calc,"res_calc",cells,
op_arg_dat(p_xm, -4, pcell, 2,"double",OP_READ),
op_arg_dat(p_phim, -4, pcell, 1,"double",OP_READ),
op_arg_dat(p_K, -1, OP_ID, 16,"double:soa",OP_WRITE),
op_arg_dat(p_resm, -4, pcell, 1,"double",OP_INC)
);
op_par_loop(dirichlet,"dirichlet",bnodes,
op_arg_dat(p_resm, 0, pbnodes, 1,"double",OP_WRITE));
double c1 = 0;
double c2 = 0;
double c3 = 0;
double alpha = 0;
double beta = 0;
//c1 = R'*R;
op_par_loop(init_cg, "init_cg", nodes,
op_arg_dat(p_resm, -1, OP_ID, 1, "double", OP_READ),
op_arg_gbl(&c1, 1, "double", OP_INC),
op_arg_dat(p_U, -1, OP_ID, 1, "double", OP_WRITE),
op_arg_dat(p_V, -1, OP_ID, 1, "double", OP_WRITE),
op_arg_dat(p_P, -1, OP_ID, 1, "double", OP_WRITE));
//set up stopping conditions
double res0 = sqrt(c1);
double res = res0;
int inner_iter = 0;
int maxiter = 200;
while (res > 0.1*res0 && inner_iter < maxiter) {
//V = Stiffness*P
op_par_loop(spMV, "spMV", cells,
op_arg_dat(p_V, -4, pcell, 1, "double", OP_INC),
op_arg_dat(p_K, -1, OP_ID, 16, "double:soa", OP_READ),
op_arg_dat(p_P, -4, pcell, 1, "double", OP_READ));
op_par_loop(dirichlet,"dirichlet",bnodes,
op_arg_dat(p_V, 0, pbnodes, 1,"double",OP_WRITE));
c2 = 0;
//c2 = P'*V;
op_par_loop(dotPV, "dotPV", nodes,
op_arg_dat(p_P, -1, OP_ID, 1, "double", OP_READ),
op_arg_dat(p_V, -1, OP_ID, 1, "double", OP_READ),
op_arg_gbl(&c2, 1, "double", OP_INC));
alpha = c1/c2;
//U = U + alpha*P;
//resm = resm-alpha*V;
op_par_loop(updateUR, "updateUR", nodes,
op_arg_dat(p_U, -1, OP_ID, 1, "double", OP_INC),
op_arg_dat(p_resm, -1, OP_ID, 1, "double", OP_INC),
op_arg_dat(p_P, -1, OP_ID, 1, "double", OP_READ),
op_arg_dat(p_V, -1, OP_ID, 1, "double", OP_RW),
op_arg_gbl(&alpha, 1, "double", OP_READ));
c3 = 0;
//c3 = resm'*resm;
op_par_loop(dotR, "dotR", nodes,
op_arg_dat(p_resm, -1, OP_ID, 1, "double", OP_READ),
op_arg_gbl(&c3, 1, "double", OP_INC));
beta = c3/c1;
//P = beta*P+resm;
op_par_loop(updateP, "updateP", nodes,
op_arg_dat(p_resm, -1, OP_ID, 1, "double", OP_READ),
op_arg_dat(p_P, -1, OP_ID, 1, "double", OP_RW),
op_arg_gbl(&beta, 1, "double", OP_READ));
c1 = c3;
res = sqrt(c1);
inner_iter++;
}
rms = 0;
//phim = phim - Stiffness\Load;
op_par_loop(update, "update", nodes,
op_arg_dat(p_phim, -1, OP_ID, 1, "double", OP_RW),
op_arg_dat(p_resm, -1, OP_ID, 1, "double", OP_WRITE),
op_arg_dat(p_U, -1, OP_ID, 1, "double", OP_READ),
op_arg_gbl(&rms, 1, "double", OP_INC));
op_printf("rms = %10.5e iter: %d\n", sqrt(rms)/sqrt(g_nnode), inner_iter);
}
op_timers(&cpu_t2, &wall_t2);
op_timing_output();
op_printf("Max total runtime = %f\n",wall_t2-wall_t1);
op_exit();
/*free(cell);
free(bnode);
free(xm);
free(phim);
free(K);
free(resm);
free(V);
free(P);
free(U);*/
}
int main(int argc, char **argv){
int nnode, nedge, n, e;
double dx;
nnode = (NN-1)*(NN-1);
nedge = (NN-1)*(NN-1) + 4*(NN-1)*(NN-2);
dx = 1.0f / ((double) NN);
int *pp = (int *)malloc(sizeof(int)*2*nedge);
double *A = (double *)malloc(sizeof(double)*nedge);
double *r = (double *)malloc(sizeof(double)*nnode);
double *u = (double *)malloc(sizeof(double)*nnode);
double *du = (double *)malloc(sizeof(double)*nnode);
// create matrix and r.h.s., and set coordinates needed for renumbering / partitioning
e = 0;
for (int i=1; i<NN; i++) {
for (int j=1; j<NN; j++) {
n = i-1 + (j-1)*(NN-1);
r[n] = 0.0f;
u[n] = 0.0f;
du[n] = 0.0f;
pp[2*e] = n;
pp[2*e+1] = n;
A[e] = -1.0f;
e++;
for (int pass=0; pass<4; pass++) {
int i2 = i;
int j2 = j;
if (pass==0) i2 += -1;
if (pass==1) i2 += 1;
if (pass==2) j2 += -1;
if (pass==3) j2 += 1;
if ( (i2==0) || (i2==NN) || (j2==0) || (j2==NN) ) {
r[n] += 0.25f;
}
else {
pp[2*e] = n;
pp[2*e+1] = i2-1 + (j2-1)*(NN-1);
A[e] = 0.25f;
e++;
}
}
}
}
// OP initialisation
op_init(argc,argv,5);
// declare sets, pointers, and datasets
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_map ppedge = op_decl_map(edges,nodes,2,pp, "ppedge");
op_dat p_A = op_decl_dat(edges,1,"double",A, "p_A" );
op_dat p_r = op_decl_dat(nodes,1,"double",r, "p_r" );
op_dat p_u = op_decl_dat(nodes,1,"double",u, "p_u" );
op_dat p_du = op_decl_dat(nodes,1,"double",du, "p_du");
alpha = 1.0f;
op_decl_const(1,"double",&alpha);
op_diagnostic_output();
// main iteration loop
double u_sum, u_max, beta = 1.0f;
for (int iter=0; iter<NITER; iter++) {
op_par_loop(res,"res", edges,
op_arg_dat(p_A, -1,OP_ID, 1,"double",OP_READ),
op_arg_dat(p_u, 1,ppedge, 1,"double",OP_READ),
op_arg_dat(p_du, 0,ppedge, 1,"double",OP_INC ),
op_arg_gbl(&beta,1,"double",OP_READ));
u_sum = 0.0f;
u_max = 0.0f;
op_par_loop(update,"update", nodes,
op_arg_dat(p_r, -1,OP_ID, 1,"double",OP_READ),
op_arg_dat(p_du, -1,OP_ID, 1,"double",OP_RW ),
op_arg_dat(p_u, -1,OP_ID, 1,"double",OP_INC ),
op_arg_gbl(&u_sum,1,"double",OP_INC),
op_arg_gbl(&u_max,1,"double",OP_MAX));
printf("\n u max/rms = %f %f \n\n",u_max, sqrt(u_sum/nnode));
}
// print out results
printf("\n Results after %d iterations:\n\n",NITER);
op_fetch_data(p_u);
/*
op_fetch_data(p_du);
op_fetch_data(p_r);
*/
for (int pass=0; pass<1; pass++) {
/*
if(pass==0) printf("\narray u\n");
else if(pass==1) printf("\narray du\n");
else if(pass==2) printf("\narray r\n");
*/
for (int j=NN-1; j>0; j--) {
for (int i=1; i<NN; i++) {
if (pass==0)
printf(" %7.4f",u[i-1 + (j-1)*(NN-1)]);
else if (pass==1)
printf(" %7.4f",du[i-1 + (j-1)*(NN-1)]);
else if (pass==2)
printf(" %7.4f",r[i-1 + (j-1)*(NN-1)]);
}
printf("\n");
}
printf("\n");
}
op_timing_output();
op_exit();
// free allocated arrays
free(pp);
free(A);
free(r);
free(u);
free(du);
}
int main(int argc, char *argv[]){
int *becell, *ecell, *bound, *bedge, *edge, *cell;
REAL *x, *q, *qold, *adt, *res;
int nnode,ncell,nedge,nbedge,niter;
REAL rms;
if (argc != 2) {
printf("Usage: airfoil <grid>\n");
exit(1);
}
// read in grid
printf("reading in grid \n");
char* grid = argv[1];
FILE *fp;
if ( (fp = fopen(grid,"r")) == NULL) {
printf("can't open file %s\n", grid); exit(-1);
}
if (fscanf(fp,"%d %d %d %d \n",&nnode, &ncell, &nedge, &nbedge) != 4) {
printf("error reading from %s\n", grid); exit(-1);
}
cell = (int *) malloc(4*ncell*sizeof(int));
edge = (int *) malloc(2*nedge*sizeof(int));
ecell = (int *) malloc(2*nedge*sizeof(int));
bedge = (int *) malloc(2*nbedge*sizeof(int));
becell = (int *) malloc( nbedge*sizeof(int));
bound = (int *) malloc( nbedge*sizeof(int));
x = (REAL *) malloc(2*nnode*sizeof(REAL));
q = (REAL *) malloc(4*ncell*sizeof(REAL));
qold = (REAL *) malloc(4*ncell*sizeof(REAL));
res = (REAL *) malloc(4*ncell*sizeof(REAL));
adt = (REAL *) malloc( ncell*sizeof(REAL));
for (int n=0; n<nnode; n++) {
if (fscanf(fp,"%f %f \n",&x[2*n], &x[2*n+1]) != 2) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<ncell; n++) {
if (fscanf(fp,"%d %d %d %d \n",&cell[4*n ], &cell[4*n+1],
&cell[4*n+2], &cell[4*n+3]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&edge[2*n], &edge[2*n+1],
&ecell[2*n],&ecell[2*n+1]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nbedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&bedge[2*n],&bedge[2*n+1],
&becell[n], &bound[n]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
fclose(fp);
// set constants and initialise flow field and residual
printf("initialising flow field \n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
REAL mach = 0.4f;
REAL alpha = 3.0f*atan(1.0f)/45.0f;
REAL p = 1.0f;
REAL r = 1.0f;
REAL u = sqrt(gam*p/r)*mach;
REAL e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
for (int n=0; n<ncell; n++) {
for (int m=0; m<4; m++) {
q[4*n+m] = qinf[m];
res[4*n+m] = 0.0f;
}
}
// OP initialisation
op_init(argc,argv,2);
op_tuner* global_tuner = op_create_global_tuner();
global_tuner->op_warpsize = 1;
global_tuner->block_size = 64;
global_tuner->part_size = 128;
global_tuner->cache_line_size = 128;
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_set bedges = op_decl_set(nbedge, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pedge = op_decl_map(edges, nodes,2,edge, "pedge");
op_map pecell = op_decl_map(edges, cells,2,ecell, "pecell");
op_map pbedge = op_decl_map(bedges,nodes,2,bedge, "pbedge");
op_map pbecell = op_decl_map(bedges,cells,1,becell,"pbecell");
op_map pcell = op_decl_map(cells, nodes,4,cell, "pcell");
op_dat p_bound = op_decl_dat(bedges,1,"int" ,bound,"p_bound");
op_dat p_x = op_decl_dat(nodes ,2,REAL_STRING,x ,"p_x");
op_dat p_q = op_decl_dat(cells ,4,REAL_STRING,q ,"p_q");
op_dat p_qold = op_decl_dat(cells ,4,REAL_STRING,qold ,"p_qold");
op_dat p_adt = op_decl_dat(cells ,1,REAL_STRING,adt ,"p_adt");
op_dat p_res = op_decl_dat(cells ,4,REAL_STRING,res ,"p_res");
op_decl_const(1,REAL_STRING,&gam );
op_decl_const(1,REAL_STRING,&gm1 );
op_decl_const(1,REAL_STRING,&cfl );
op_decl_const(1,REAL_STRING,&eps );
op_decl_const(1,REAL_STRING,&mach );
op_decl_const(1,REAL_STRING,&alpha);
op_decl_const(4,REAL_STRING,qinf );
op_tuner* save_soln_tuner = op_create_tuner("save_soln");
save_soln_tuner->part_size = 64;
save_soln_tuner->block_size = 4;
op_tuner* adt_calc_tuner = op_create_tuner("adt_calc");
adt_calc_tuner->part_size = 64;
adt_calc_tuner->block_size = 4;
op_tuner* res_calc_tuner = op_create_tuner("res_calc");
res_calc_tuner->part_size = 64;
res_calc_tuner->block_size = 4;
op_tuner* bres_calc_tuner = op_create_tuner("bres_calc");
bres_calc_tuner->part_size = 64;
bres_calc_tuner->block_size = 4;
op_tuner* update_tuner = op_create_tuner("update");
update_tuner->part_size = 64;
update_tuner->block_size = 4;
op_diagnostic_output();
// main time-marching loop
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
// save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,REAL_STRING,OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,REAL_STRING,OP_WRITE),
save_soln_tuner);
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,REAL_STRING,OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,REAL_STRING,OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,REAL_STRING,OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,REAL_STRING,OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,REAL_STRING,OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,REAL_STRING,OP_WRITE),
adt_calc_tuner);
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,REAL_STRING,OP_READ),
op_arg_dat(p_x, 1,pedge, 2,REAL_STRING,OP_READ),
op_arg_dat(p_q, 0,pecell,4,REAL_STRING,OP_READ),
op_arg_dat(p_q, 1,pecell,4,REAL_STRING,OP_READ),
op_arg_dat(p_adt, 0,pecell,1,REAL_STRING,OP_READ),
op_arg_dat(p_adt, 1,pecell,1,REAL_STRING,OP_READ),
op_arg_dat(p_res, 0,pecell,4,REAL_STRING,OP_INC ),
op_arg_dat(p_res, 1,pecell,4,REAL_STRING,OP_INC ),
res_calc_tuner);
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,REAL_STRING,OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,REAL_STRING,OP_READ),
op_arg_dat(p_q, 0,pbecell,4,REAL_STRING,OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,REAL_STRING,OP_READ),
op_arg_dat(p_res, 0,pbecell,4,REAL_STRING,OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ),
bres_calc_tuner);
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,REAL_STRING,OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,REAL_STRING,OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,REAL_STRING,OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,REAL_STRING,OP_READ ),
op_arg_gbl(&rms,1,REAL_STRING,OP_INC),
update_tuner);
}
// print iteration history
rms = sqrt(rms/(REAL) ncell);
if ( iter % 100 == 0 )
printf(" %d %10.5e \n",iter,rms);
}
for ( int ll = 0; ll < 4*ncell; ll++ ) {
printf ( "%lf\n", q[ll] );
}
op_timing_output();
}
int main(int argc, char **argv){
int *becell, *ecell, *bound, *bedge, *edge, *cell;
float *x, *q, *qold, *adt, *res;
int nnode,ncell,nedge,nbedge,niter;
float rms;
op_set nodes, edges, bedges, cells;
op_map pedge, pecell, pbedge, pbecell, pcell;
op_dat p_x, p_q, p_qold, p_res, p_adt, p_bound, p_rms;
/* read in grid */
printf("reading in grid \n");
FILE *fp;
if ( (fp = fopen("new_grid.dat","r")) == NULL) {
printf("can't open file new_grid.dat\n"); exit(-1);
}
if (fscanf(fp,"%d %d %d %d \n",&nnode, &ncell, &nedge, &nbedge) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
cell = (int *) malloc(4*ncell*sizeof(int));
edge = (int *) malloc(2*nedge*sizeof(int));
ecell = (int *) malloc(2*nedge*sizeof(int));
bedge = (int *) malloc(2*nbedge*sizeof(int));
becell = (int *) malloc( nbedge*sizeof(int));
bound = (int *) malloc( nbedge*sizeof(int));
x = (float *) malloc(2*nnode*sizeof(float));
q = (float *) malloc(4*ncell*sizeof(float));
qold = (float *) malloc(4*ncell*sizeof(float));
res = (float *) malloc(4*ncell*sizeof(float));
adt = (float *) malloc( ncell*sizeof(float));
for (int n=0; n<nnode; n++) {
if (fscanf(fp,"%f %f \n",&x[2*n], &x[2*n+1]) != 2) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<ncell; n++) {
if (fscanf(fp,"%d %d %d %d \n",&cell[4*n ], &cell[4*n+1],
&cell[4*n+2], &cell[4*n+3]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&edge[2*n], &edge[2*n+1],
&ecell[2*n],&ecell[2*n+1]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nbedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&bedge[2*n],&bedge[2*n+1],
&becell[n], &bound[n]) != 4) {
printf("error reading from new_grid.dat\n"); exit(-1);
}
}
fclose(fp);
/* set constants and initialise flow field and residual */
printf("initialising flow field \n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
float mach = 0.4f;
float alpha = 3.0f*atan(1.0f)/45.0f;
float p = 1.0f;
float r = 1.0f;
float u = sqrt(gam*p/r)*mach;
float e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
for (int n=0; n<ncell; n++) {
for (int m=0; m<4; m++) {
q[4*n+m] = qinf[m];
res[4*n+m] = 0.0f;
}
}
/* OP initialisation */
op_init(argc,argv,2);
/* declare sets, pointers, datasets and global constants */
op_decl_set(&nodes, nnode, "nodes");
op_decl_set(&edges, nedge, "edges");
op_decl_set(&bedges,nbedge, "bedges");
op_decl_set(&cells, ncell, "cells");
op_decl_map(&pedge, &edges, &nodes,2,edge, "pedge");
op_decl_map(&pecell, &edges, &cells,2,ecell, "pecell");
op_decl_map(&pbedge, &bedges,&nodes,2,bedge, "pbedge");
op_decl_map(&pbecell,&bedges,&cells,1,becell,"pbecell");
op_decl_map(&pcell, &cells, &nodes,4,cell, "pcell");
op_decl_vec(&p_bound,&bedges,1,sizeof(int),bound,"p_bound");
op_decl_vec(&p_x ,&nodes ,2,sizeof(float),x ,"p_x");
op_decl_vec(&p_q ,&cells ,4,sizeof(float),q ,"p_q");
op_decl_vec(&p_qold ,&cells ,4,sizeof(float),qold ,"p_qold");
op_decl_vec(&p_adt ,&cells ,1,sizeof(float),adt ,"p_adt");
op_decl_vec(&p_res ,&cells ,4,sizeof(float),res ,"p_res");
op_decl_gbl(&p_rms ,1,sizeof(float),&rms ,"p_rms");
op_decl_const(&gam, 1, sizeof(float));
op_decl_const(&gm1, 1, sizeof(float));
op_decl_const(&cfl, 1, sizeof(float));
op_decl_const(&eps, 1, sizeof(float));
op_decl_const(&mach, 1, sizeof(float));
op_decl_const(&alpha,1, sizeof(float));
op_decl_const(qinf, 4, sizeof(float));
op_diagnostic_output();
/* main time-marching loop */
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
/* save old flow solution */
op_par_loop_2((void(*)(void*,void*))save_soln,"save_soln", &cells,
op_construct_vec_arg(&p_q, OP_NONE, NULL,OP_READ ),
op_construct_vec_arg(&p_qold,OP_NONE, NULL,OP_WRITE));
/* predictor/corrector update loop */
for(int k=0; k<2; k++) {
/* calculate area/timstep */
op_par_loop_3((void(*)(void*,void*,void*))adt_calc,"adt_calc",&cells,
op_construct_vec_arg(&p_x, OP_ALL, &pcell, OP_READ ),
op_construct_vec_arg(&p_q, OP_NONE, NULL, OP_READ ),
op_construct_vec_arg(&p_adt, OP_NONE, NULL, OP_WRITE));
/* calculate flux residual */
op_par_loop_4((void(*)(void*,void*,void*,void*))res_calc,"res_calc",&edges,
op_construct_vec_arg(&p_x, OP_ALL,&pedge, OP_READ),
op_construct_vec_arg(&p_q, OP_ALL,&pecell,OP_READ),
op_construct_vec_arg(&p_adt, OP_ALL,&pecell,OP_READ),
op_construct_vec_arg(&p_res, OP_ALL,&pecell,OP_INC));
op_par_loop_5((void(*)(void*,void*,void*,void*,void*))bres_calc,"bres_calc",&bedges,
op_construct_vec_arg(&p_x, OP_ALL,&pbedge, OP_READ),
op_construct_vec_arg(&p_q, 0,&pbecell,OP_READ),
op_construct_vec_arg(&p_adt, 0,&pbecell,OP_READ),
op_construct_vec_arg(&p_res, 0,&pbecell,OP_INC),
op_construct_vec_arg(&p_bound,OP_NONE, NULL,OP_READ));
/* update flow field */
rms = 0.0;
op_par_loop_5((void(*)(void*,void*,void*,void*,void*))update,"update",&cells,
op_construct_vec_arg(&p_qold,OP_NONE, NULL, OP_READ),
op_construct_vec_arg(&p_q, OP_NONE, NULL, OP_WRITE),
op_construct_vec_arg(&p_res, OP_NONE, NULL, OP_RW),
op_construct_vec_arg(&p_adt, OP_NONE, NULL, OP_READ),
op_construct_gbl_arg(&p_rms, OP_INC));
}
/* print iteration history */
rms = sqrt(rms/(float) ncell);
if (iter%100 == 0)
printf(" %d %10.5e \n",iter,rms);
}
op_timing_output();
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
int niter;
double rms;
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
// set constants and initialise flow field and residual
op_printf("initialising flow field \n");
char file[] = "new_grid.h5";
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set_hdf5(file, "nodes");
op_set edges = op_decl_set_hdf5(file, "edges");
op_set bedges = op_decl_set_hdf5(file, "bedges");
op_set cells = op_decl_set_hdf5(file, "cells");
op_map pedge = op_decl_map_hdf5(edges, nodes, 2, file, "pedge");
op_map pecell = op_decl_map_hdf5(edges, cells,2, file, "pecell");
op_map pbedge = op_decl_map_hdf5(bedges,nodes,2, file, "pbedge");
op_map pbecell = op_decl_map_hdf5(bedges,cells,1, file, "pbecell");
op_map pcell = op_decl_map_hdf5(cells, nodes,4, file, "pcell");
op_dat p_bound = op_decl_dat_hdf5(bedges,1,"int" ,file,"p_bound");
op_dat p_x = op_decl_dat_hdf5(nodes ,2,"double",file,"p_x");
op_dat p_q = op_decl_dat_hdf5(cells ,4,"double",file,"p_q");
op_dat p_qold = op_decl_dat_hdf5(cells ,4,"double",file,"p_qold");
op_dat p_adt = op_decl_dat_hdf5(cells ,1,"double",file,"p_adt");
op_dat p_res = op_decl_dat_hdf5(cells ,4,"double",file,"p_res");
op_get_const_hdf5("gam", 1, "double", (char *)&gam, "new_grid.h5");
op_get_const_hdf5("gm1", 1, "double", (char *)&gm1, "new_grid.h5");
op_get_const_hdf5("cfl", 1, "double", (char *)&cfl, "new_grid.h5");
op_get_const_hdf5("eps", 1, "double", (char *)&eps, "new_grid.h5");
op_get_const_hdf5("mach", 1, "double", (char *)&mach, "new_grid.h5");
op_get_const_hdf5("alpha", 1, "double", (char *)&alpha, "new_grid.h5");
op_get_const_hdf5("qinf", 4, "double", (char *)&qinf, "new_grid.h5");
op_decl_const(1,"double",&gam );
op_decl_const(1,"double",&gm1 );
op_decl_const(1,"double",&cfl );
op_decl_const(1,"double",&eps );
op_decl_const(1,"double",&mach );
op_decl_const(1,"double",&alpha);
op_decl_const(4,"double",qinf );
op_diagnostic_output();
//write back original data just to compare you read the file correctly
//do an h5diff between new_grid_out.h5 and new_grid.h5 to
//compare two hdf5 files
op_write_hdf5("new_grid_out.h5");
op_write_const_hdf5("gam",1,"double",(char *)&gam, "new_grid_out.h5");
op_write_const_hdf5("gm1",1,"double",(char *)&gm1, "new_grid_out.h5");
op_write_const_hdf5("cfl",1,"double",(char *)&cfl, "new_grid_out.h5");
op_write_const_hdf5("eps",1,"double",(char *)&eps, "new_grid_out.h5");
op_write_const_hdf5("mach",1,"double",(char *)&mach, "new_grid_out.h5");
op_write_const_hdf5("alpha",1,"double",(char *)&alpha, "new_grid_out.h5");
op_write_const_hdf5("qinf",4,"double",(char *)qinf, "new_grid_out.h5");
//trigger partitioning and halo creation routines
op_partition("PTSCOTCH", "KWAY", edges, pecell, p_x);
int g_ncell = op_get_size(cells);
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
// main time-marching loop
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
// save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_WRITE));
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, -4,pcell, 2,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"double",OP_WRITE));
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, -2,pedge, 2,"double",OP_READ),
op_arg_dat(p_q, -2,pecell,4,"double",OP_READ),
op_arg_dat(p_adt, -2,pecell,1,"double",OP_READ),
op_arg_dat(p_res, -2,pecell,4,"double",OP_INC ));
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, -2,pbedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"double",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ));
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"double",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"double",OP_READ ),
op_arg_gbl(&rms,1,"double",OP_INC));
}
// print iteration history
rms = sqrt(rms/(double)g_ncell);
if (iter%100 == 0)
op_printf(" %d %10.5e \n",iter,rms);
}
op_timers(&cpu_t2, &wall_t2);
op_timing_output();
op_printf("Max total runtime = \n%f\n",wall_t2-wall_t1);
op_exit();
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
//MPI for user I/O
int my_rank;
int comm_size;
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
int *becell, *ecell, *bound, *bedge, *edge, *cell;
float *x, *q, *qold, *adt, *res;
int nnode,ncell,nedge,nbedge;
/**------------------------BEGIN I/O -------------------**/
char file[] = "new_grid.dat";
char file_out[] = "new_grid_out.h5";
/* read in grid from disk on root processor */
FILE *fp;
if ( (fp = fopen(file,"r")) == NULL) {
op_printf("can't open file %s\n",file); exit(-1);
}
int g_nnode,g_ncell,g_nedge,g_nbedge;
check_scan(fscanf(fp,"%d %d %d %d \n",&g_nnode, &g_ncell, &g_nedge, &g_nbedge), 4);
int *g_becell = 0, *g_ecell = 0, *g_bound = 0, *g_bedge = 0, *g_edge = 0, *g_cell = 0;
float *g_x = 0,*g_q = 0, *g_qold = 0, *g_adt = 0, *g_res = 0;
// set constants
op_printf("initialising flow field\n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
float mach = 0.4f;
float alpha = 3.0f*atan(1.0f)/45.0f;
float p = 1.0f;
float r = 1.0f;
float u = sqrt(gam*p/r)*mach;
float e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
op_printf("reading in grid \n");
op_printf("Global number of nodes, cells, edges, bedges = %d, %d, %d, %d\n"
,g_nnode,g_ncell,g_nedge,g_nbedge);
if(my_rank == MPI_ROOT) {
g_cell = (int *) malloc(4*g_ncell*sizeof(int));
g_edge = (int *) malloc(2*g_nedge*sizeof(int));
g_ecell = (int *) malloc(2*g_nedge*sizeof(int));
g_bedge = (int *) malloc(2*g_nbedge*sizeof(int));
g_becell = (int *) malloc( g_nbedge*sizeof(int));
g_bound = (int *) malloc( g_nbedge*sizeof(int));
g_x = (float *) malloc(2*g_nnode*sizeof(float));
g_q = (float *) malloc(4*g_ncell*sizeof(float));
g_qold = (float *) malloc(4*g_ncell*sizeof(float));
g_res = (float *) malloc(4*g_ncell*sizeof(float));
g_adt = (float *) malloc( g_ncell*sizeof(float));
for (int n=0; n<g_nnode; n++){
check_scan(fscanf(fp,"%f %f \n",&g_x[2*n], &g_x[2*n+1]), 2);
}
for (int n=0; n<g_ncell; n++) {
check_scan(fscanf(fp,"%d %d %d %d \n",&g_cell[4*n ], &g_cell[4*n+1],
&g_cell[4*n+2], &g_cell[4*n+3]), 4);
}
for (int n=0; n<g_nedge; n++) {
check_scan(fscanf(fp,"%d %d %d %d \n",&g_edge[2*n],&g_edge[2*n+1],
&g_ecell[2*n],&g_ecell[2*n+1]), 4);
}
for (int n=0; n<g_nbedge; n++) {
check_scan(fscanf(fp,"%d %d %d %d \n",&g_bedge[2*n],&g_bedge[2*n+1],
&g_becell[n],&g_bound[n]), 4);
}
//initialise flow field and residual
for (int n=0; n<g_ncell; n++) {
for (int m=0; m<4; m++) {
g_q[4*n+m] = qinf[m];
g_res[4*n+m] = 0.0f;
}
}
}
fclose(fp);
nnode = compute_local_size (g_nnode, comm_size, my_rank);
ncell = compute_local_size (g_ncell, comm_size, my_rank);
nedge = compute_local_size (g_nedge, comm_size, my_rank);
nbedge = compute_local_size (g_nbedge, comm_size, my_rank);
op_printf("Number of nodes, cells, edges, bedges on process %d = %d, %d, %d, %d\n"
,my_rank,nnode,ncell,nedge,nbedge);
/*Allocate memory to hold local sets, mapping tables and data*/
cell = (int *) malloc(4*ncell*sizeof(int));
edge = (int *) malloc(2*nedge*sizeof(int));
ecell = (int *) malloc(2*nedge*sizeof(int));
bedge = (int *) malloc(2*nbedge*sizeof(int));
becell = (int *) malloc( nbedge*sizeof(int));
bound = (int *) malloc( nbedge*sizeof(int));
x = (float *) malloc(2*nnode*sizeof(float));
q = (float *) malloc(4*ncell*sizeof(float));
qold = (float *) malloc(4*ncell*sizeof(float));
res = (float *) malloc(4*ncell*sizeof(float));
adt = (float *) malloc( ncell*sizeof(float));
/* scatter sets, mappings and data on sets*/
scatter_int_array(g_cell, cell, comm_size, g_ncell,ncell, 4);
scatter_int_array(g_edge, edge, comm_size, g_nedge,nedge, 2);
scatter_int_array(g_ecell, ecell, comm_size, g_nedge,nedge, 2);
scatter_int_array(g_bedge, bedge, comm_size, g_nbedge,nbedge, 2);
scatter_int_array(g_becell, becell, comm_size, g_nbedge,nbedge, 1);
scatter_int_array(g_bound, bound, comm_size, g_nbedge,nbedge, 1);
scatter_float_array(g_x, x, comm_size, g_nnode,nnode, 2);
scatter_float_array(g_q, q, comm_size, g_ncell,ncell, 4);
scatter_float_array(g_qold, qold, comm_size, g_ncell,ncell, 4);
scatter_float_array(g_res, res, comm_size, g_ncell,ncell, 4);
scatter_float_array(g_adt, adt, comm_size, g_ncell,ncell, 1);
/*Freeing memory allocated to gloabal arrays on rank 0
after scattering to all processes*/
if(my_rank == MPI_ROOT) {
free(g_cell);
free(g_edge);
free(g_ecell);
free(g_bedge);
free(g_becell);
free(g_bound);
free(g_x );
free(g_q);
free(g_qold);
free(g_adt);
free(g_res);
}
/**------------------------END I/O -----------------------**/
/* FIXME: It's not clear to the compiler that sth. is going on behind the
scenes here. Hence theses variables are reported as unused */
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_set bedges = op_decl_set(nbedge, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pedge = op_decl_map(edges, nodes,2,edge, "pedge");
op_map pecell = op_decl_map(edges, cells,2,ecell, "pecell");
op_map pbedge = op_decl_map(bedges,nodes,2,bedge, "pbedge");
op_map pbecell = op_decl_map(bedges,cells,1,becell,"pbecell");
op_map pcell = op_decl_map(cells, nodes,4,cell, "pcell");
op_dat p_bound = op_decl_dat(bedges,1,"int" ,bound,"p_bound");
op_dat p_x = op_decl_dat(nodes ,2,"float",x ,"p_x");
op_dat p_q = op_decl_dat(cells ,4,"float",q ,"p_q");
op_dat p_qold = op_decl_dat(cells ,4,"float",qold ,"p_qold");
op_dat p_adt = op_decl_dat(cells ,1,"float",adt ,"p_adt");
op_dat p_res = op_decl_dat(cells ,4,"float",res ,"p_res");
op_decl_const(1,"float",&gam );
op_decl_const(1,"float",&gm1 );
op_decl_const(1,"float",&cfl );
op_decl_const(1,"float",&eps );
op_decl_const(1,"float",&mach );
op_decl_const(1,"float",&alpha);
op_decl_const(4,"float",qinf );
op_dump_to_hdf5(file_out);
op_write_const_hdf5("gam", 1,"float",(char *)&gam, "new_grid_out.h5");
op_write_const_hdf5("gm1", 1,"float",(char *)&gm1, "new_grid_out.h5");
op_write_const_hdf5("cfl", 1,"float",(char *)&cfl, "new_grid_out.h5");
op_write_const_hdf5("eps", 1,"float",(char *)&eps, "new_grid_out.h5");
op_write_const_hdf5("mach", 1,"float",(char *)&mach, "new_grid_out.h5");
op_write_const_hdf5("alpha",1,"float",(char *)&alpha,"new_grid_out.h5");
op_write_const_hdf5("qinf", 4,"float",(char *)qinf, "new_grid_out.h5");
//create halos - for sanity check
op_halo_create();
op_exit();
}
int main(int argc, char **argv) {
// OP initialisation
op_init(argc, argv, 2);
int *becell, *ecell, *bound, *bedge, *edge, *cell;
double *x, *q, *qold, *adt, *res;
int nnode, ncell, nedge, nbedge, niter;
double rms;
// timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
// read in grid
op_printf("reading in grid \n");
FILE *fp;
if ((fp = fopen("./new_grid.dat", "r")) == NULL) {
op_printf("can't open file new_grid.dat\n");
exit(-1);
}
if (fscanf(fp, "%d %d %d %d \n", &nnode, &ncell, &nedge, &nbedge) != 4) {
op_printf("error reading from new_grid.dat\n");
exit(-1);
}
cell = (int *)malloc(4 * ncell * sizeof(int));
edge = (int *)malloc(2 * nedge * sizeof(int));
ecell = (int *)malloc(2 * nedge * sizeof(int));
bedge = (int *)malloc(2 * nbedge * sizeof(int));
becell = (int *)malloc(nbedge * sizeof(int));
bound = (int *)malloc(nbedge * sizeof(int));
x = (double *)malloc(2 * nnode * sizeof(double));
q = (double *)malloc(4 * ncell * sizeof(double));
qold = (double *)malloc(4 * ncell * sizeof(double));
res = (double *)malloc(4 * ncell * sizeof(double));
adt = (double *)malloc(ncell * sizeof(double));
for (int n = 0; n < nnode; n++) {
if (fscanf(fp, "%lf %lf \n", &x[2 * n], &x[2 * n + 1]) != 2) {
op_printf("error reading from new_grid.dat\n");
exit(-1);
}
}
for (int n = 0; n < ncell; n++) {
if (fscanf(fp, "%d %d %d %d \n", &cell[4 * n], &cell[4 * n + 1],
&cell[4 * n + 2], &cell[4 * n + 3]) != 4) {
op_printf("error reading from new_grid.dat\n");
exit(-1);
}
}
for (int n = 0; n < nedge; n++) {
if (fscanf(fp, "%d %d %d %d \n", &edge[2 * n], &edge[2 * n + 1],
&ecell[2 * n], &ecell[2 * n + 1]) != 4) {
op_printf("error reading from new_grid.dat\n");
exit(-1);
}
}
for (int n = 0; n < nbedge; n++) {
if (fscanf(fp, "%d %d %d %d \n", &bedge[2 * n], &bedge[2 * n + 1],
&becell[n], &bound[n]) != 4) {
op_printf("error reading from new_grid.dat\n");
exit(-1);
}
}
fclose(fp);
// set constants and initialise flow field and residual
op_printf("initialising flow field \n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
double mach = 0.4f;
double alpha = 3.0f * atan(1.0f) / 45.0f;
double p = 1.0f;
double r = 1.0f;
double u = sqrt(gam * p / r) * mach;
double e = p / (r * gm1) + 0.5f * u * u;
qinf[0] = r;
qinf[1] = r * u;
qinf[2] = 0.0f;
qinf[3] = r * e;
for (int n = 0; n < ncell; n++) {
for (int m = 0; m < 4; m++) {
q[4 * n + m] = qinf[m];
res[4 * n + m] = 0.0f;
}
}
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_set bedges = op_decl_set(nbedge, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pedge = op_decl_map(edges, nodes, 2, edge, "pedge");
op_map pecell = op_decl_map(edges, cells, 2, ecell, "pecell");
op_map pbedge = op_decl_map(bedges, nodes, 2, bedge, "pbedge");
op_map pbecell = op_decl_map(bedges, cells, 1, becell, "pbecell");
op_map pcell = op_decl_map(cells, nodes, 4, cell, "pcell");
op_dat p_bound = op_decl_dat(bedges, 1, "int", bound, "p_bound");
op_dat p_x = op_decl_dat(nodes, 2, "double", x, "p_x");
op_dat p_q = op_decl_dat(cells, 4, "double", q, "p_q");
// op_dat p_qold = op_decl_dat(cells ,4,"double",qold ,"p_qold");
// op_dat p_adt = op_decl_dat(cells ,1,"double",adt ,"p_adt");
// op_dat p_res = op_decl_dat(cells ,4,"double",res ,"p_res");
// p_res, p_adt and p_qold now declared as a temp op_dats during
// the execution of the time-marching loop
op_decl_const(1, "double", &gam);
op_decl_const(1, "double", &gm1);
op_decl_const(1, "double", &cfl);
op_decl_const(1, "double", &eps);
op_decl_const(1, "double", &mach);
op_decl_const(1, "double", &alpha);
op_decl_const(4, "double", qinf);
op_diagnostic_output();
double g_ncell = op_get_size(cells);
// initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
// main time-marching loop
niter = 1000;
for (int iter = 1; iter <= niter; iter++) {
double *tmp_elem = NULL;
op_dat p_res = op_decl_dat_temp(cells, 4, "double", tmp_elem, "p_res");
op_dat p_adt = op_decl_dat_temp(cells, 1, "double", tmp_elem, "p_adt");
op_dat p_qold = op_decl_dat_temp(cells, 4, "double", qold, "p_qold");
// save old flow solution
op_par_loop(save_soln, "save_soln", cells,
op_arg_dat(p_q, -1, OP_ID, 4, "double", OP_READ),
op_arg_dat(p_qold, -1, OP_ID, 4, "double", OP_WRITE));
// predictor/corrector update loop
for (int k = 0; k < 2; k++) {
// calculate area/timstep
op_par_loop(adt_calc, "adt_calc", cells,
op_arg_dat(p_x, 0, pcell, 2, "double", OP_READ),
op_arg_dat(p_x, 1, pcell, 2, "double", OP_READ),
op_arg_dat(p_x, 2, pcell, 2, "double", OP_READ),
op_arg_dat(p_x, 3, pcell, 2, "double", OP_READ),
op_arg_dat(p_q, -1, OP_ID, 4, "double", OP_READ),
op_arg_dat(p_adt, -1, OP_ID, 1, "double", OP_WRITE));
// calculate flux residual
op_par_loop(res_calc, "res_calc", edges,
op_arg_dat(p_x, 0, pedge, 2, "double", OP_READ),
op_arg_dat(p_x, 1, pedge, 2, "double", OP_READ),
op_arg_dat(p_q, 0, pecell, 4, "double", OP_READ),
op_arg_dat(p_q, 1, pecell, 4, "double", OP_READ),
op_arg_dat(p_adt, 0, pecell, 1, "double", OP_READ),
op_arg_dat(p_adt, 1, pecell, 1, "double", OP_READ),
op_arg_dat(p_res, 0, pecell, 4, "double", OP_INC),
op_arg_dat(p_res, 1, pecell, 4, "double", OP_INC));
op_par_loop(bres_calc, "bres_calc", bedges,
op_arg_dat(p_x, 0, pbedge, 2, "double", OP_READ),
op_arg_dat(p_x, 1, pbedge, 2, "double", OP_READ),
op_arg_dat(p_q, 0, pbecell, 4, "double", OP_READ),
op_arg_dat(p_adt, 0, pbecell, 1, "double", OP_READ),
op_arg_dat(p_res, 0, pbecell, 4, "double", OP_INC),
op_arg_dat(p_bound, -1, OP_ID, 1, "int", OP_READ));
// update flow field
rms = 0.0;
op_par_loop(update, "update", cells,
op_arg_dat(p_qold, -1, OP_ID, 4, "double", OP_READ),
op_arg_dat(p_q, -1, OP_ID, 4, "double", OP_WRITE),
op_arg_dat(p_res, -1, OP_ID, 4, "double", OP_RW),
op_arg_dat(p_adt, -1, OP_ID, 1, "double", OP_READ),
op_arg_gbl(&rms, 1, "double", OP_INC));
}
// print iteration history
rms = sqrt(rms / (double)g_ncell);
if (iter % 100 == 0)
op_printf(" %d %10.5e \n", iter, rms);
if (iter % 1000 == 0 &&
g_ncell == 720000) { // defailt mesh -- for validation testing
// op_printf(" %d %3.16f \n",iter,rms);
double diff = fabs((100.0 * (rms / 0.0001060114637578)) - 100.0);
op_printf("\n\nTest problem with %d cells is within %3.15E %% of the "
"expected solution\n",
720000, diff);
if (diff < 0.00001) {
op_printf("This test is considered PASSED\n");
} else {
op_printf("This test is considered FAILED\n");
}
}
if (op_free_dat_temp(p_res) < 0)
op_printf("Error: temporary op_dat %s cannot be removed\n", p_res->name);
if (op_free_dat_temp(p_adt) < 0)
op_printf("Error: temporary op_dat %s cannot be removed\n", p_adt->name);
if (op_free_dat_temp(p_qold) < 0)
op_printf("Error: temporary op_dat %s cannot be removed\n", p_qold->name);
}
op_timers(&cpu_t2, &wall_t2);
op_timing_output();
op_printf("Max total runtime = %f\n", wall_t2 - wall_t1);
op_exit();
free(cell);
free(edge);
free(ecell);
free(bedge);
free(becell);
free(bound);
free(x);
free(q);
free(qold);
free(res);
free(adt);
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
int *becell, *ecell, *bound, *bedge, *edge, *cell;
double *x, *q, *qold, *adt, *res;
int nnode,ncell,nedge,nbedge,niter;
double rms;
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
// read in grid
op_printf("reading in grid \n");
FILE *fp;
if ( (fp = fopen("./new_grid.dat","r")) == NULL) {
op_printf("can't open file new_grid.dat\n"); exit(-1);
}
if (fscanf(fp,"%d %d %d %d \n",&nnode, &ncell, &nedge, &nbedge) != 4) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
cell = (int *) malloc(4*ncell*sizeof(int));
edge = (int *) malloc(2*nedge*sizeof(int));
ecell = (int *) malloc(2*nedge*sizeof(int));
bedge = (int *) malloc(2*nbedge*sizeof(int));
becell = (int *) malloc( nbedge*sizeof(int));
bound = (int *) malloc( nbedge*sizeof(int));
x = (double *) malloc(2*nnode*sizeof(double));
q = (double *) malloc(4*ncell*sizeof(double));
qold = (double *) malloc(4*ncell*sizeof(double));
res = (double *) malloc(4*ncell*sizeof(double));
adt = (double *) malloc( ncell*sizeof(double));
for (int n=0; n<nnode; n++) {
if (fscanf(fp,"%lf %lf \n",&x[2*n], &x[2*n+1]) != 2) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<ncell; n++) {
if (fscanf(fp,"%d %d %d %d \n",&cell[4*n ], &cell[4*n+1],
&cell[4*n+2], &cell[4*n+3]) != 4) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&edge[2*n], &edge[2*n+1],
&ecell[2*n],&ecell[2*n+1]) != 4) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
for (int n=0; n<nbedge; n++) {
if (fscanf(fp,"%d %d %d %d \n",&bedge[2*n],&bedge[2*n+1],
&becell[n], &bound[n]) != 4) {
op_printf("error reading from new_grid.dat\n"); exit(-1);
}
}
fclose(fp);
// set constants and initialise flow field and residual
op_printf("initialising flow field \n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
double mach = 0.4f;
double alpha = 3.0f*atan(1.0f)/45.0f;
double p = 1.0f;
double r = 1.0f;
double u = sqrt(gam*p/r)*mach;
double e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
for (int n=0; n<ncell; n++) {
for (int m=0; m<4; m++) {
q[4*n+m] = qinf[m];
res[4*n+m] = 0.0f;
}
}
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set(nnode, "nodes");
op_set edges = op_decl_set(nedge, "edges");
op_set bedges = op_decl_set(nbedge, "bedges");
op_set cells = op_decl_set(ncell, "cells");
op_map pedge = op_decl_map(edges, nodes,2,edge, "pedge");
op_map pecell = op_decl_map(edges, cells,2,ecell, "pecell");
op_map pbedge = op_decl_map(bedges,nodes,2,bedge, "pbedge");
op_map pbecell = op_decl_map(bedges,cells,1,becell,"pbecell");
op_map pcell = op_decl_map(cells, nodes,4,cell, "pcell");
op_dat p_bound = op_decl_dat(bedges,1,"int" ,bound,"p_bound");
op_dat p_x = op_decl_dat(nodes ,2,"double",x ,"p_x");
op_dat p_q = op_decl_dat(cells ,4,"double",q ,"p_q");
op_dat p_qold = op_decl_dat(cells ,4,"double",qold ,"p_qold");
op_dat p_adt = op_decl_dat(cells ,1,"double",adt ,"p_adt");
op_dat p_res = op_decl_dat(cells ,4,"double",res ,"p_res");
op_decl_const(1,"double",&gam );
op_decl_const(1,"double",&gm1 );
op_decl_const(1,"double",&cfl );
op_decl_const(1,"double",&eps );
op_decl_const(1,"double",&mach );
op_decl_const(1,"double",&alpha);
op_decl_const(4,"double",qinf );
op_diagnostic_output();
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
// main time-marching loop
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
// save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_WRITE));
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"double",OP_WRITE));
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pecell,4,"double",OP_READ),
op_arg_dat(p_q, 1,pecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pecell,1,"double",OP_READ),
op_arg_dat(p_adt, 1,pecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pecell,4,"double",OP_INC ),
op_arg_dat(p_res, 1,pecell,4,"double",OP_INC ));
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"double",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ));
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"double",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"double",OP_READ ),
op_arg_gbl(&rms,1,"double",OP_INC));
}
// print iteration history
rms = sqrt(rms/(double) op_get_size(cells));
if (iter%100 == 0)
op_printf(" %d %10.5e \n",iter,rms);
}
op_timers(&cpu_t2, &wall_t2);
//output the result dat array to files
op_print_dat_to_txtfile(p_q, "out_grid_seq.dat"); //ASCI
op_print_dat_to_binfile(p_q, "out_grid_seq.bin"); //Binary
op_timing_output();
op_printf("Max total runtime = \n%f\n",wall_t2-wall_t1);
op_exit();
free(cell);
free(edge);
free(ecell);
free(bedge);
free(becell);
free(bound);
free(x);
free(q);
free(qold);
free(res);
free(adt);
}
int main(int argc, char **argv)
{
// OP initialisation
op_init(argc,argv,2);
int niter;
double rms;
//timer
double cpu_t1, cpu_t2, wall_t1, wall_t2;
// set constants and initialise flow field and residual
op_printf("initialising flow field \n");
gam = 1.4f;
gm1 = gam - 1.0f;
cfl = 0.9f;
eps = 0.05f;
double mach = 0.4f;
double alpha = 3.0f*atan(1.0f)/45.0f;
double p = 1.0f;
double r = 1.0f;
double u = sqrt(gam*p/r)*mach;
double e = p/(r*gm1) + 0.5f*u*u;
qinf[0] = r;
qinf[1] = r*u;
qinf[2] = 0.0f;
qinf[3] = r*e;
char file[] = "new_grid.h5";//"new_grid-26mil.h5";
// declare sets, pointers, datasets and global constants
op_set nodes = op_decl_set_hdf5(file, "nodes");
op_set edges = op_decl_set_hdf5(file, "edges");
op_set bedges = op_decl_set_hdf5(file, "bedges");
op_set cells = op_decl_set_hdf5(file, "cells");
op_map pedge = op_decl_map_hdf5(edges, nodes, 2, file, "pedge");
op_map pecell = op_decl_map_hdf5(edges, cells,2, file, "pecell");
op_map pbedge = op_decl_map_hdf5(bedges,nodes,2, file, "pbedge");
op_map pbecell = op_decl_map_hdf5(bedges,cells,1, file, "pbecell");
op_map pcell = op_decl_map_hdf5(cells, nodes,4, file, "pcell");
op_dat p_bound = op_decl_dat_hdf5(bedges,1,"int" ,file,"p_bound");
op_dat p_x = op_decl_dat_hdf5(nodes ,2,"double",file,"p_x");
op_dat p_q = op_decl_dat_hdf5(cells ,4,"double",file,"p_q");
op_dat p_qold = op_decl_dat_hdf5(cells ,4,"double",file,"p_qold");
op_dat p_adt = op_decl_dat_hdf5(cells ,1,"double",file,"p_adt");
op_dat p_res = op_decl_dat_hdf5(cells ,4,"double",file,"p_res");
op_decl_const(1,"double",&gam );
op_decl_const(1,"double",&gm1 );
op_decl_const(1,"double",&cfl );
op_decl_const(1,"double",&eps );
op_decl_const(1,"double",&mach );
op_decl_const(1,"double",&alpha);
op_decl_const(4,"double",qinf );
op_diagnostic_output();
int g_ncell = op_get_size(cells);
//initialise timers for total execution wall time
op_timers(&cpu_t1, &wall_t1);
// main time-marching loop
niter = 1000;
for(int iter=1; iter<=niter; iter++) {
// save old flow solution
op_par_loop(save_soln,"save_soln", cells,
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_WRITE));
// predictor/corrector update loop
for(int k=0; k<2; k++) {
// calculate area/timstep
op_par_loop(adt_calc,"adt_calc",cells,
op_arg_dat(p_x, 0,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 1,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 2,pcell, 2,"double",OP_READ ),
op_arg_dat(p_x, 3,pcell, 2,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_adt,-1,OP_ID, 1,"double",OP_WRITE));
// calculate flux residual
op_par_loop(res_calc,"res_calc",edges,
op_arg_dat(p_x, 0,pedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pecell,4,"double",OP_READ),
op_arg_dat(p_q, 1,pecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pecell,1,"double",OP_READ),
op_arg_dat(p_adt, 1,pecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pecell,4,"double",OP_INC ),
op_arg_dat(p_res, 1,pecell,4,"double",OP_INC ));
op_par_loop(bres_calc,"bres_calc",bedges,
op_arg_dat(p_x, 0,pbedge, 2,"double",OP_READ),
op_arg_dat(p_x, 1,pbedge, 2,"double",OP_READ),
op_arg_dat(p_q, 0,pbecell,4,"double",OP_READ),
op_arg_dat(p_adt, 0,pbecell,1,"double",OP_READ),
op_arg_dat(p_res, 0,pbecell,4,"double",OP_INC ),
op_arg_dat(p_bound,-1,OP_ID ,1,"int", OP_READ));
// update flow field
rms = 0.0;
op_par_loop(update,"update",cells,
op_arg_dat(p_qold,-1,OP_ID, 4,"double",OP_READ ),
op_arg_dat(p_q, -1,OP_ID, 4,"double",OP_WRITE),
op_arg_dat(p_res, -1,OP_ID, 4,"double",OP_RW ),
op_arg_dat(p_adt, -1,OP_ID, 1,"double",OP_READ ),
op_arg_gbl(&rms,1,"double",OP_INC));
}
// print iteration history
rms = sqrt(rms/(double)g_ncell);
if (iter%100 == 0)
op_printf(" %d %10.5e \n",iter,rms);
}
op_timers(&cpu_t2, &wall_t2);
op_timing_output();
op_printf("Max total runtime = \n%f\n",wall_t2-wall_t1);
op_exit();
}