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114 lines
2.9 KiB
114 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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#pragma once
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#include <cstdint>
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#include <memory>
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#include "paddle/fluid/platform/gpu_info.h"
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#include "paddle/fluid/platform/macros.h"
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#include "paddle/fluid/platform/place.h"
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#include "paddle/fluid/platform/stream_callback_manager.h"
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namespace paddle {
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namespace platform {
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namespace stream {
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#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
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enum class Priority : uint8_t {
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kNull = 0x0,
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kHigh = 0x1,
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kNormal = 0x2,
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};
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class CUDAStream final {
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public:
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CUDAStream() = default;
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explicit CUDAStream(const Place& place,
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const Priority& priority = Priority::kNormal) {
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Init(place, priority);
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}
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virtual ~CUDAStream() { Destroy(); }
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bool Init(const Place& place, const Priority& priority = Priority::kNormal);
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template <typename Callback>
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void AddCallback(Callback&& callback) const {
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callback_manager_->AddCallback(callback);
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}
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template <typename Callback>
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#ifdef PADDLE_WITH_HIP
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void RecordEvent(hipEvent_t ev, Callback callback) const {
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callback();
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PADDLE_ENFORCE_CUDA_SUCCESS(hipEventRecord(ev, stream_));
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}
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#else
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void RecordEvent(cudaEvent_t ev, Callback callback) const {
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callback();
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaEventRecord(ev, stream_));
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}
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#endif
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#ifdef PADDLE_WITH_HIP
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void RecordEvent(hipEvent_t ev) const {
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PADDLE_ENFORCE_CUDA_SUCCESS(hipEventRecord(ev, stream_));
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}
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#else
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void RecordEvent(cudaEvent_t ev) const {
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaEventRecord(ev, stream_));
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}
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#endif
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#ifdef PADDLE_WITH_HIP
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void WaitEvent(hipEvent_t ev) const {
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PADDLE_ENFORCE_CUDA_SUCCESS(hipStreamWaitEvent(stream_, ev, 0));
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}
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#else
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void WaitEvent(cudaEvent_t ev) const {
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaStreamWaitEvent(stream_, ev, 0));
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}
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#endif
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void Wait() const;
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void WaitCallback() const { callback_manager_->Wait(); }
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#ifdef PADDLE_WITH_HIP
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const hipStream_t& raw_stream() const { return stream_; }
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#else
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const cudaStream_t& raw_stream() const { return stream_; }
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#endif
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void Destroy();
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private:
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Place place_;
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#ifdef PADDLE_WITH_HIP
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hipStream_t stream_{nullptr};
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#else
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cudaStream_t stream_{nullptr};
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#endif
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Priority priority_{Priority::kNormal};
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std::unique_ptr<StreamCallbackManager> callback_manager_;
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DISABLE_COPY_AND_ASSIGN(CUDAStream);
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};
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#endif
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} // namespace stream
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} // namespace platform
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} // namespace paddle
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