wehub-resource-sync
86 lines
1.7 KiB
C++
86 lines
1.7 KiB
C++
// Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
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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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#pragma once
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#include <memory>
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#include <vector>
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#include "cuda_runtime.h" // NOLINT
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#include "paddle/common/enforce.h"
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#include "paddle/common/macros.h"
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#include "paddle/phi/common/place.h"
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namespace phi {
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class EventPair {
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DISABLE_COPY_AND_ASSIGN(EventPair);
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public:
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EventPair();
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~EventPair() PADDLE_MAY_THROW;
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void Start(cudaStream_t stream);
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void Stop(cudaStream_t stream);
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void Reset();
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double Elapsed();
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private:
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cudaEvent_t start_;
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cudaEvent_t end_;
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bool started_;
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};
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class GPUEventTimer {
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DISABLE_COPY_AND_ASSIGN(GPUEventTimer);
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public:
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explicit GPUEventTimer(phi::GPUPlace place);
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void Start(cudaStream_t stream);
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void Stop(cudaStream_t stream);
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void Start();
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void Stop();
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void Reset();
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double Elapsed(bool reset);
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std::vector<double> ElapsedList(bool reset);
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void PreAlloc(size_t n);
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void ShrinkToFit();
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size_t Size() const;
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size_t Capacity() const;
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private:
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EventPair *GetLatest();
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private:
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std::vector<std::unique_ptr<EventPair>> events_;
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size_t length_;
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cudaStream_t default_stream_;
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};
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} // namespace phi
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