Method GetNumOpenclPlatforms

src/core/device/platform.cc:153–156

#ifdef USE_OPENCL

const int Platform::GetNumOpenclPlatforms() {
  auto all_platforms = viennacl::ocl::get_platforms();
  return (int)all_platforms.size();
}

const int Platform::GetNumOpenclDevices() {
  auto all_platforms = viennacl::ocl::get_platforms();