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145 lines
4.6 KiB
145 lines
4.6 KiB
/* Copyright (c) 2016 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 <string>
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#include <thread> // NOLINT
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#include <utility>
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#include <vector>
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#include "grpc++/grpc++.h"
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#include "paddle/fluid/framework/blocking_queue.h"
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#include "paddle/fluid/framework/executor.h"
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#include "paddle/fluid/framework/lod_tensor.h"
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#include "paddle/fluid/framework/program_desc.h"
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#include "paddle/fluid/framework/scope.h"
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#include "paddle/fluid/framework/selected_rows.h"
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#include "paddle/fluid/framework/var_type.h"
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#include "paddle/fluid/operators/detail/grpc_service.h"
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#include "paddle/fluid/operators/detail/send_recv.grpc.pb.h"
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#include "paddle/fluid/operators/detail/send_recv.pb.h"
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#include "paddle/fluid/operators/detail/sendrecvop_utils.h"
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#include "paddle/fluid/platform/profiler.h"
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namespace paddle {
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namespace operators {
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namespace detail {
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typedef std::pair<std::string, std::shared_ptr<VariableResponse>>
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ReceivedMessage;
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typedef framework::BlockingQueue<ReceivedMessage> ReceivedQueue;
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typedef std::pair<std::string, sendrecv::VariableMessage> MessageWithName;
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class RequestBase;
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class AsyncGRPCServer final {
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public:
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explicit AsyncGRPCServer(const std::string &address, bool sync_mode)
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: address_(address), sync_mode_(sync_mode), ready_(0) {}
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~AsyncGRPCServer() {}
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void WaitServerReady();
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void RunSyncUpdate();
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// functions to sync server barrier status.
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void WaitCond(int cond);
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void SetCond(int cond);
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void WaitClientGet(int count);
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void SetScope(framework::Scope *scope) { scope_ = scope; }
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void SetDevCtx(const platform::DeviceContext *dev_ctx) { dev_ctx_ = dev_ctx; }
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void SetProgram(framework::ProgramDesc *program) { program_ = program; }
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void SetExecutor(framework::Executor *executor) { executor_ = executor; }
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void SetPrefetchPreparedCtx(
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std::unique_ptr<framework::ExecutorPrepareContext> prepared) {
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prefetch_ctx_.reset(prepared.release());
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}
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int GetSelectedPort() const { return selected_port_; }
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const ReceivedMessage Get() { return this->var_recv_queue_.Pop(); }
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void Push(const std::string &msg_name) {
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this->var_recv_queue_.Push(std::make_pair(msg_name, nullptr));
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}
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void ShutDown();
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protected:
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void HandleRequest(::grpc::ServerCompletionQueue *cq,
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const std::string &cq_name,
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std::function<void(int)> TryToRegisterNewOne);
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void TryToRegisterNewSendOne(int req_id);
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void TryToRegisterNewGetOne(int req_id);
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void TryToRegisterNewPrefetchOne(int req_id);
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void ShutdownQueue();
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private:
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static const int kSendReqsBufSize = 100;
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static const int kGetReqsBufSize = 100;
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static const int kPrefetchReqsBufSize = 10;
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std::mutex cq_mutex_;
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volatile bool is_shut_down_ = false;
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std::unique_ptr<::grpc::ServerCompletionQueue> cq_send_;
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std::unique_ptr<::grpc::ServerCompletionQueue> cq_get_;
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std::unique_ptr<::grpc::ServerCompletionQueue> cq_prefetch_;
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RequestBase *send_reqs_[kSendReqsBufSize];
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RequestBase *get_reqs_[kGetReqsBufSize];
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RequestBase *prefetch_reqs_[kPrefetchReqsBufSize];
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GrpcService::AsyncService service_;
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std::unique_ptr<::grpc::Server> server_;
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std::string address_;
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const bool sync_mode_;
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framework::Scope *scope_;
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const platform::DeviceContext *dev_ctx_;
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// received variable from RPC, operators fetch variable from this queue.
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framework::BlockingQueue<MessageWithName> var_get_queue_;
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// client send variable to this queue.
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ReceivedQueue var_recv_queue_;
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// condition of the sub program
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std::mutex barrier_mutex_;
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mutable int barrier_cond_step_;
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std::condition_variable barrier_condition_;
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std::vector<std::unique_ptr<std::thread>> t_sends_;
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std::vector<std::unique_ptr<std::thread>> t_gets_;
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std::vector<std::unique_ptr<std::thread>> t_prefetchs_;
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std::unique_ptr<std::thread> t_prefetch_;
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std::unique_ptr<framework::ExecutorPrepareContext> prefetch_ctx_;
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framework::ProgramDesc *program_;
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framework::Executor *executor_;
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int selected_port_;
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std::mutex mutex_ready_;
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std::condition_variable condition_ready_;
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int ready_;
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};
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}; // namespace detail
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}; // namespace operators
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}; // namespace paddle
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