horovod/mxnet/util.h

// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// =============================================================================

#ifndef HOROVOD_MXNET_UTIL_H
#define HOROVOD_MXNET_UTIL_H

#if HAVE_CUDA

#include <cuda_runtime.h>

/*!
 * \brief Protected CUDA call.
 * \param func Expression to call.
 *
 * It checks for CUDA errors after invocation of the expression.
 */
#define CUDA_CALL(func)                                                        \
  {                                                                            \
    cudaError_t e = (func);                                                    \
    CHECK(e == cudaSuccess || e == cudaErrorCudartUnloading)                   \
        << "CUDA: " << cudaGetErrorString(e);                                  \
  }

#endif // HAVE_CUDA

#endif // HOROVOD_MXNET_UTIL_H