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101 lines
2.9 KiB
101 lines
2.9 KiB
/* Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#include "paddle/fluid/platform/stream/cuda_stream.h"
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#include "paddle/fluid/platform/cuda_device_guard.h"
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#include "paddle/fluid/platform/enforce.h"
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namespace paddle {
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namespace platform {
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namespace stream {
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#ifdef PADDLE_WITH_HIP
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constexpr unsigned int kDefaultFlag = hipStreamDefault;
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#else
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constexpr unsigned int kDefaultFlag = cudaStreamDefault;
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#endif
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bool CUDAStream::Init(const Place& place, const Priority& priority) {
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PADDLE_ENFORCE_EQ(is_gpu_place(place), true,
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platform::errors::InvalidArgument(
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"Cuda stream must be created using cuda place."));
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place_ = place;
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CUDADeviceGuard guard(BOOST_GET_CONST(CUDAPlace, place_).device);
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if (priority == Priority::kHigh) {
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#ifdef PADDLE_WITH_HIP
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PADDLE_ENFORCE_CUDA_SUCCESS(
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hipStreamCreateWithPriority(&stream_, kDefaultFlag, -1));
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#else
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PADDLE_ENFORCE_CUDA_SUCCESS(
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cudaStreamCreateWithPriority(&stream_, kDefaultFlag, -1));
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#endif
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} else if (priority == Priority::kNormal) {
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#ifdef PADDLE_WITH_HIP
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PADDLE_ENFORCE_CUDA_SUCCESS(
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hipStreamCreateWithPriority(&stream_, kDefaultFlag, 0));
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#else
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PADDLE_ENFORCE_CUDA_SUCCESS(
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cudaStreamCreateWithPriority(&stream_, kDefaultFlag, 0));
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#endif
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}
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callback_manager_.reset(new StreamCallbackManager(stream_));
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VLOG(3) << "CUDAStream Init stream: " << stream_
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<< ", priority: " << static_cast<int>(priority);
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return true;
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}
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void CUDAStream::Destroy() {
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CUDADeviceGuard guard(BOOST_GET_CONST(CUDAPlace, place_).device);
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Wait();
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WaitCallback();
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if (stream_) {
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#ifdef PADDLE_WITH_HIP
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PADDLE_ENFORCE_CUDA_SUCCESS(hipStreamDestroy(stream_));
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#else
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaStreamDestroy(stream_));
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#endif
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}
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stream_ = nullptr;
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}
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void CUDAStream::Wait() const {
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#ifdef PADDLE_WITH_HIP
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hipError_t e_sync = hipSuccess;
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#if !defined(_WIN32)
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e_sync = hipStreamSynchronize(stream_);
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#else
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while (e_sync = hipStreamQuery(stream_)) {
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if (e_sync == hipErrorNotReady) continue;
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break;
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}
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#endif
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#else
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cudaError_t e_sync = cudaSuccess;
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#if !defined(_WIN32)
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e_sync = cudaStreamSynchronize(stream_);
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#else
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while (e_sync = cudaStreamQuery(stream_)) {
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if (e_sync == cudaErrorNotReady) continue;
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break;
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}
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#endif
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#endif // PADDLE_WITH_HIP
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PADDLE_ENFORCE_CUDA_SUCCESS(e_sync);
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}
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} // namespace stream
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} // namespace platform
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} // namespace paddle
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