/** @brief Convenience function for setting devices for a context */
inline void setup_context(long i,
viennacl::ocl::device const & device)
{
std::vector<cl_device_id> device_id_array(1);
device_id_array[0] = device.id();
viennacl::ocl::backend<>::setup_context(i, device_id_array);
}
bool invalid_base(viennacl::ocl::device const & dev, size_t lmem_used) const{
//Query profile informations
std::pair<size_t, size_t> workgroup_size = local_work_size();
//Query device informations
size_t lmem_available = viennacl::ocl::info<CL_DEVICE_LOCAL_MEM_SIZE>(dev.id());
size_t max_workgroup_size = viennacl::ocl::info<CL_DEVICE_MAX_WORK_GROUP_SIZE>(dev.id());
std::vector<size_t> max_work_item_sizes = viennacl::ocl::info<CL_DEVICE_MAX_WORK_ITEM_SIZES>(dev.id());
bool invalid_work_group_sizes = workgroup_size.first*workgroup_size.second > max_workgroup_size; // uses too much resources
invalid_work_group_sizes = invalid_work_group_sizes || workgroup_size.first > max_work_item_sizes[0];
if(max_work_item_sizes.size()>1) invalid_work_group_sizes = invalid_work_group_sizes || workgroup_size.second > max_work_item_sizes[1];
return invalid_work_group_sizes
|| lmem_used>lmem_available;
}