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71 lines
2.1 KiB
71 lines
2.1 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 <cstddef>
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#include <map>
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#include <memory>
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#include <vector>
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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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#ifdef PADDLE_WITH_PSLIB
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namespace paddle {
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namespace framework {
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class GPUResource {
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public:
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GPUResource(std::vector<int>& device_id, int index);
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virtual ~GPUResource();
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GPUResource(const GPUResource&) = delete;
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GPUResource& operator=(const GPUResource&) = delete;
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int dev_id() const { return dev_id_; }
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int index() const { return index_; }
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gpuStream_t local_stream(int num) { return local_streams_[num]; }
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gpuStream_t remote_stream() { return remote_stream_; }
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gpuStream_t comm_stream(int num) { return comm_streams_[num]; }
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int dev_id_;
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int index_;
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std::vector<int> dev_ids_;
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gpuStream_t remote_stream_;
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std::vector<gpuStream_t> local_streams_;
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std::vector<gpuStream_t> comm_streams_;
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};
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class HeterPsResource {
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public:
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HeterPsResource(const std::vector<int>& dev_ids);
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HeterPsResource(const HeterPsResource&) = delete;
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HeterPsResource& operator=(const HeterPsResource&) = delete;
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virtual ~HeterPsResource() {}
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void enable_p2p();
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int total_gpu();
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int get_index_by_devid(int devid);
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int dev_id(int num);
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gpuStream_t local_stream(int gpu_num, int stream_num);
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gpuStream_t remote_stream(int gpu_num);
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gpuStream_t comm_stream(int gpu_num, int stream_num);
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std::vector<std::shared_ptr<GPUResource>> resources_;
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std::vector<int> dev_ids_;
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std::map<int, int> devid_2_index_;
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};
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} // end namespace framework
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} // end namespace paddle
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#endif
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