C++ (Cpp) mem_handle::switch_active_handle_id示例

示例#1

文件： init_vector.hpp 项目： 10imaging/viennacl

static ViennaCLStatus init_host_vector(viennacl::backend::mem_handle & h, ViennaCLVector x)
{
  h.switch_active_handle_id(viennacl::MAIN_MEMORY);
  h.ram_handle().reset(x->host_mem);
  h.ram_handle().inc();
  if (x->precision == ViennaCLFloat)
    h.raw_size(static_cast<viennacl::vcl_size_t>(x->inc) * static_cast<viennacl::vcl_size_t>(x->size) * sizeof(float)); // not necessary, but still set for conciseness
  else if (x->precision == ViennaCLDouble)
    h.raw_size(static_cast<viennacl::vcl_size_t>(x->inc) * static_cast<viennacl::vcl_size_t>(x->size) * sizeof(double)); // not necessary, but still set for conciseness
  else
    return ViennaCLGenericFailure;

  return ViennaCLSuccess;
}

示例#2

文件： init_vector.hpp 项目： 10imaging/viennacl

static ViennaCLStatus init_opencl_vector(viennacl::backend::mem_handle & h, ViennaCLVector x)
{
#ifdef VIENNACL_WITH_OPENCL
  h.switch_active_handle_id(viennacl::OPENCL_MEMORY);
  h.opencl_handle() = x->opencl_mem;
  h.opencl_handle().inc();
  if (x->precision == ViennaCLFloat)
    h.raw_size(static_cast<viennacl::vcl_size_t>(x->inc) * static_cast<viennacl::vcl_size_t>(x->size) * sizeof(float)); // not necessary, but still set for conciseness
  else if (x->precision == ViennaCLDouble)
    h.raw_size(static_cast<viennacl::vcl_size_t>(x->inc) * static_cast<viennacl::vcl_size_t>(x->size) * sizeof(double)); // not necessary, but still set for conciseness
  else
    return ViennaCLGenericFailure;

  return ViennaCLSuccess;
#else
  (void)h;
  (void)x;
  return ViennaCLGenericFailure;
#endif
}

示例#3

文件： init_vector.hpp 项目： GnsP/viennacl-dev

static ViennaCLStatus init_cuda_vector(viennacl::backend::mem_handle & h, ViennaCLVector x)
{
#ifdef VIENNACL_WITH_CUDA
  h.switch_active_handle_id(viennacl::CUDA_MEMORY);
  h.cuda_handle().reset(x->cuda_mem);
  h.cuda_handle().inc();
  if (x->precision == ViennaCLFloat)
    h.raw_size(x->inc * x->size * sizeof(float)); // not necessary, but still set for conciseness
  else if (x->precision == ViennaCLDouble)
    h.raw_size(x->inc * x->size * sizeof(double)); // not necessary, but still set for conciseness
  else
    return ViennaCLGenericFailure;

  return ViennaCLSuccess;
#else
  (void)h;
  (void)x;
  return ViennaCLGenericFailure;
#endif
}