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92 lines
3.0 KiB
92 lines
3.0 KiB
/* Copyright (c) 2021 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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#include <string>
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#include "paddle/fluid/framework/op_registry.h"
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namespace paddle {
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namespace framework {
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class Scope;
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} // namespace framework
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} // namespace paddle
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
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#include "paddle/fluid/platform/collective_helper.h"
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#endif
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namespace paddle {
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namespace operators {
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class CWaitCommOp : public framework::OperatorBase {
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public:
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CWaitCommOp(const std::string& type, const framework::VariableNameMap& inputs,
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const framework::VariableNameMap& outputs,
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const framework::AttributeMap& attrs)
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: OperatorBase(type, inputs, outputs, attrs) {}
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void RunImpl(const framework::Scope& scope,
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const platform::Place& place) const override {
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PADDLE_ENFORCE_EQ(is_gpu_place(place), true,
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platform::errors::PreconditionNotMet(
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"wait_comm op can run on gpu place only for now."));
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#if defined(PADDLE_WITH_NCCL) || defined(PADDLE_WITH_RCCL)
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int ring_id = Attr<int>("ring_id");
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auto compute_stream =
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static_cast<platform::CUDADeviceContext*>(
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platform::DeviceContextPool::Instance().Get(place))
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->stream();
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auto comm_stream =
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platform::NCCLCommContext::Instance().Get(ring_id, place)->stream();
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auto event =
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platform::NCCLCommContext::Instance().Get(ring_id, place)->comm_event();
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// comm_stream-->event-->compute_stream
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#ifdef PADDLE_WITH_HIP
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PADDLE_ENFORCE_CUDA_SUCCESS(hipEventRecord(event, comm_stream));
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PADDLE_ENFORCE_CUDA_SUCCESS(hipStreamWaitEvent(compute_stream, event, 0));
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#else
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaEventRecord(event, comm_stream));
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PADDLE_ENFORCE_CUDA_SUCCESS(cudaStreamWaitEvent(compute_stream, event, 0));
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#endif
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#else
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PADDLE_THROW(platform::errors::PreconditionNotMet(
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"PaddlePaddle should compile with GPU."));
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#endif
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}
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};
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class CWaitCommOpMaker : public framework::OpProtoAndCheckerMaker {
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public:
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void Make() {
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AddInput("X", "(Tensor) Dependency of the variable need to sync")
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.AsDuplicable();
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AddOutput("Out", "(Tensor) Dependency of the variable need to sync")
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.AsDuplicable();
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AddAttr<int>("ring_id", "(int default 0) ring id.").SetDefault(0);
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AddComment(R"DOC(
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CWaitComm Operator
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Compute stream wait Comm Stream with async event.
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)DOC");
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}
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};
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} // namespace operators
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} // namespace paddle
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namespace ops = paddle::operators;
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REGISTER_OPERATOR(c_wait_comm, ops::CWaitCommOp, ops::CWaitCommOpMaker);
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