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60 lines
2.0 KiB
60 lines
2.0 KiB
6 years ago
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// Copyright (c) 2018 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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#include <condition_variable> // NOLINT
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#include <string>
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#include "gflags/gflags.h"
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#include "paddle/fluid/operators/distributed/collective_client.h"
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DECLARE_int32(rpc_deadline);
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namespace paddle {
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namespace operators {
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namespace distributed {
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std::once_flag CollectiveClient::init_flag_;
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std::unique_ptr<CollectiveClient> CollectiveClient::client_(nullptr);
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bool CollectiveClient::Gather(const std::vector<RemoteVar>& remote_vars,
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std::vector<const framework::SelectedRows*>* dst,
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const platform::DeviceContext& ctx,
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framework::Scope* scope, int64_t time_out) {
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for (auto r : remote_vars) {
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VLOG(50) << "begin gather from ep:" << r.String();
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scope->Var(r.var_name_)->GetMutable<framework::SelectedRows>();
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VarHandlePtr ptr = rpc_client_->AsyncGetMonomerVariable(
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r.ep_, ctx, *scope, r.var_name_, time_out);
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}
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rpc_client_->Wait();
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for (auto r : remote_vars) {
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auto select_rows =
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scope->FindVar(r.var_name_)->GetMutable<framework::SelectedRows>();
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dst->push_back(select_rows);
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VLOG(4) << "gather from ep:" << r.String()
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<< ", select_rows:" << GetSelectedRowsInfo(*select_rows);
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rpc_client_->AsyncGetMonomerBarrier(r.ep_, r.var_name_);
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}
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rpc_client_->Wait();
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return true;
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}
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} // namespace distributed
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} // namespace operators
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} // namespace paddle
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