wehub-resource-sync
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
// Copyright (c) 2019 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 <string>
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#include <vector>
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
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#include "paddle/phi/core/platform/device/gpu/gpu_resource_pool.h"
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#endif
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#ifdef PADDLE_WITH_NCCL
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#include "paddle/phi/backends/dynload/nccl.h"
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#endif
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#ifdef PADDLE_WITH_RCCL
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#include "paddle/phi/backends/dynload/rccl.h"
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#endif
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#include "paddle/fluid/imperative/parallel_context.h"
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namespace paddle {
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namespace framework {
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class Variable;
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} // namespace framework
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} // namespace paddle
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namespace paddle {
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namespace imperative {
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
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class NCCLParallelContext : public ParallelContext {
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public:
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explicit NCCLParallelContext(const ParallelStrategy& strategy,
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const phi::Place& place)
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: ParallelContext(strategy, place) {}
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~NCCLParallelContext() override = default;
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void BcastNCCLId(std::vector<ncclUniqueId>& nccl_ids, // NOLINT
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int root, // NOLINT
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int server_fd);
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void Init() override;
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void InitWithRingID(int ring_id) override;
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void AllReduceByStream(const framework::Variable& src,
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framework::Variable* dst,
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int ring_id,
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bool use_calc_stream) override;
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void Broadcast(framework::Variable* src, int ring_id) override;
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phi::DeviceContext* GetDeviceContext(int ring_id) override;
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void WaitCompute(int ring_id) override;
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void WaitComm(int ring_id) override;
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void SynchronizeCompute() override;
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private:
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// used for comm wait compute, compute_stream-->event-->comm_stream[ring_id]
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std::vector<std::shared_ptr<platform::CudaEventObject>> compute_events_;
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// used for compute wait comm, comm_stream[ring_id]-->event-->compute_stream
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std::vector<std::shared_ptr<platform::CudaEventObject>> comm_events_;
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};
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#endif
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} // namespace imperative
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} // namespace paddle
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