47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/**
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* Copyright 2021 Huawei Technologies Co., Ltd
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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#include "runtime/device/gpu/gpu_event.h"
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#include "runtime/device/gpu/gpu_common.h"
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namespace mindspore::device::gpu {
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GpuEvent::GpuEvent() {
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auto ret = cudaEventCreate(&event_);
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if (ret != cudaSuccess) {
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MS_LOG(ERROR) << "cudaEventCreate failed, ret:" << ret;
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event_ = nullptr;
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}
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}
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GpuEvent::~GpuEvent() { CHECK_CUDA_RET_WITH_ERROR_NOTRACE(cudaEventDestroy(event_), "cudaEventDestory failed"); }
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void GpuEvent::WaitEvent() {
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MS_EXCEPTION_IF_NULL(wait_stream_);
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MS_EXCEPTION_IF_NULL(event_);
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CHECK_CUDA_RET_WITH_EXCEPT_NOTRACE(cudaStreamWaitEvent(wait_stream_, event_, 0), "cudaStreamWaitEvent failed");
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need_wait_ = false;
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}
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void GpuEvent::RecordEvent() {
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MS_EXCEPTION_IF_NULL(event_);
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MS_EXCEPTION_IF_NULL(record_stream_);
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CHECK_CUDA_RET_WITH_EXCEPT_NOTRACE(cudaEventRecord(event_, record_stream_), "cudaEventRecord failed");
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need_wait_ = true;
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}
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bool GpuEvent::NeedWait() { return need_wait_; }
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} // namespace mindspore::device::gpu
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