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75 lines
2.1 KiB
75 lines
2.1 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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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 "ParameterServer2.h"
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#include "ParameterServerConfig.pb.h"
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#include "RDMANetwork.h"
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#include "paddle/utils/StringUtil.h"
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namespace paddle {
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/**
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* @brief ParameterServerController is used for create, init and manage multi
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* parameter server instances. The num of the instances is decided by port
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* num(the ports number for parameter send) and network devices configured
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* by gflags or proto.
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*/
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class ParameterServerController final {
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public:
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DISABLE_COPY(ParameterServerController);
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/**
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* @brief Ctor, Create a ParameterServerController from ParameterServerConfig.
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*/
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explicit ParameterServerController(const ParameterServerConfig& config);
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/**
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* @brief Dtor.
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*/
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~ParameterServerController();
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/**
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* @brief create ParameterServerController from gflags, this is used for
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* compatibility with the old usage of configuration by gflags.
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*/
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static ParameterServerController* createFromGflags();
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/**
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* @brief create ParameterServerController with ParameterServerConfig, remove
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* gflags from ParameterServer. Init all ParameterServer2 instances according
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* to
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* the config.
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*/
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static ParameterServerController* create(const ParameterServerConfig& config);
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/**
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* @brief start all ParameterServer2 instances in this
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* ParameterServerController.
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*/
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void start();
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/**
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* @brief join and wait for all ParameterServer2 instances thread in this
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* ParameterServerController.
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*/
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void wait();
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private:
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std::vector<std::unique_ptr<ParameterServer2>> parameterServers_;
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};
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} // namespace paddle
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