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74 lines
2.2 KiB
74 lines
2.2 KiB
/* Copyright (c) 2019 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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#ifdef PADDLE_WITH_CUDA
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#include <cuda.h>
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#endif
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#ifdef PADDLE_WITH_HIP
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#include <hip/hip_runtime.h>
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#endif
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#include "paddle/fluid/platform/profiler.h"
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namespace paddle {
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namespace platform {
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__global__ void DummyKernel(int *a) { a[0] = 0; }
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static void ForEachDevice(std::function<void(int)> func) {
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auto original_device = platform::GetCurrentDeviceId();
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int count = platform::GetCUDADeviceCount();
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for (int i = 0; i < count; i++) {
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platform::SetDeviceId(i);
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func(i);
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}
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platform::SetDeviceId(original_device);
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}
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void DummyKernelAndEvent() {
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#ifdef PADDLE_WITH_HIP
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for (int i = 0; i < 5; i++) {
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ForEachDevice([](int d) {
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platform::SetDeviceId(d);
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hipStream_t stream;
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PADDLE_ENFORCE_CUDA_SUCCESS(hipStreamCreate(&stream));
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Mark("_cuda_startup_");
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int *ptr;
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PADDLE_ENFORCE_CUDA_SUCCESS(hipMalloc(&ptr, sizeof(int)));
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hipLaunchKernelGGL(DummyKernel, dim3(1), dim3(1), 0, stream, ptr);
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PADDLE_ENFORCE_CUDA_SUCCESS(hipStreamSynchronize(stream));
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PADDLE_ENFORCE_CUDA_SUCCESS(hipFree(ptr));
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});
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}
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#else
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for (int i = 0; i < 5; i++) {
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ForEachDevice([](int d) {
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platform::SetDeviceId(d);
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cudaStream_t stream;
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaStreamCreate(&stream));
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Mark("_cuda_startup_");
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int *ptr;
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaMalloc(&ptr, sizeof(int)));
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DummyKernel<<<1, 1, 0, stream>>>(ptr);
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaStreamSynchronize(stream));
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaFree(ptr));
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});
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}
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#endif
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}
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} // namespace platform
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} // namespace paddle
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