Program Listing for File CudaDeviceResourceFactory.cpp

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//////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2016-20, Lawrence Livermore National Security, LLC and Umpire
// project contributors. See the COPYRIGHT file for details.
//
// SPDX-License-Identifier: (MIT)
//////////////////////////////////////////////////////////////////////////////
#include "umpire/resource/CudaDeviceResourceFactory.hpp"

#include <cuda_runtime_api.h>

#include "umpire/alloc/CudaMallocAllocator.hpp"
#include "umpire/resource/CudaDeviceMemoryResource.hpp"
#include "umpire/resource/DefaultMemoryResource.hpp"
#include "umpire/util/Macros.hpp"
#include "umpire/util/make_unique.hpp"

namespace umpire {
namespace resource {

bool CudaDeviceResourceFactory::isValidMemoryResourceFor(
    const std::string& name) noexcept
{
  if ((name.find("CONST") == std::string::npos) &&
      (name.find("DEVICE") != std::string::npos)) {
    return true;
  } else {
    return false;
  }
}

std::unique_ptr<resource::MemoryResource> CudaDeviceResourceFactory::create(
    const std::string& name, int id)
{
  return create(name, id, getDefaultTraits());
}

std::unique_ptr<resource::MemoryResource> CudaDeviceResourceFactory::create(
    const std::string& name, int id, MemoryResourceTraits traits)
{
  return util::make_unique<resource::CudaDeviceMemoryResource>(
      Platform::cuda, name, id, traits);
}

MemoryResourceTraits CudaDeviceResourceFactory::getDefaultTraits()
{
  MemoryResourceTraits traits;

  cudaDeviceProp properties;
  auto error = ::cudaGetDeviceProperties(&properties, 0);

  if (error != cudaSuccess) {
    UMPIRE_ERROR("cudaGetDeviceProperties failed with error: "
                 << cudaGetErrorString(error));
  }

  traits.unified = false;
  traits.size = properties.totalGlobalMem;

  traits.vendor = MemoryResourceTraits::vendor_type::NVIDIA;
  traits.kind = MemoryResourceTraits::memory_type::GDDR;
  traits.used_for = MemoryResourceTraits::optimized_for::any;
  traits.resource = MemoryResourceTraits::resource_type::DEVICE;

  traits.id = 0;

  return traits;
}

} // end of namespace resource
} // end of namespace umpire