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315 lines
10 KiB
315 lines
10 KiB
/* Copyright (c) 2018 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 <ctime>
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#include <fstream>
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#include <map>
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#include <memory>
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#include <mutex> // NOLINT
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#include <string>
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#include <thread> // NOLINT
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#include <vector>
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#include "paddle/fluid/framework/data_feed.h"
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#include "paddle/fluid/framework/data_set.h"
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#include "paddle/fluid/framework/device_worker.h"
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#include "paddle/fluid/framework/fleet/heter_wrapper.h"
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#include "paddle/fluid/framework/heter_service.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/reader.h"
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#include "paddle/fluid/framework/trainer_desc.pb.h"
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#include "paddle/fluid/framework/variable_helper.h"
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#include "paddle/fluid/operators/reader/blocking_queue.h"
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#include "paddle/fluid/platform/port.h"
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namespace paddle {
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namespace framework {
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class Dataset;
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class LoDTensor;
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class ProgramDesc;
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class PullDenseWorker;
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class Scope;
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class VarDesc;
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template <class T>
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class ChannelObject;
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class TrainerBase {
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public:
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TrainerBase() {}
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virtual ~TrainerBase() {}
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// model memory are hosted in root_scope
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void SetScope(Scope* root_scope);
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void SetDebug(const bool debug) { debug_ = debug; }
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void SetDataset(Dataset* dataset_ptr) { dataset_ptr_ = dataset_ptr; }
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virtual void Initialize(const TrainerDesc& trainer_desc,
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Dataset* data_set) = 0;
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virtual void InitTrainerEnv(const ProgramDesc& main_program,
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const platform::Place& place) = 0;
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virtual void InitOtherEnv(const ProgramDesc& main_program) = 0;
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virtual void Run() = 0;
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virtual void Finalize() = 0;
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virtual Scope* GetWorkerScope(int thread_id) = 0;
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virtual void InitDumpEnv() = 0;
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virtual void DumpWork(int tid);
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protected:
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virtual std::string GetDumpPath(int tid) = 0;
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virtual void ParseDumpConfig(const TrainerDesc& trainer_desc);
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virtual void FinalizeDumpEnv();
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Scope* root_scope_;
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bool debug_;
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Dataset* dataset_ptr_;
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TrainerDesc trainer_desc_;
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// For dump param or field
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bool need_dump_field_ = false;
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std::string user_define_dump_filename_;
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bool need_dump_param_ = false;
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std::string dump_fields_path_;
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std::string dump_converter_;
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std::vector<std::string> dump_param_;
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std::vector<std::string> dump_fields_;
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int dump_thread_num_;
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std::vector<std::thread> dump_thread_;
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std::shared_ptr<paddle::framework::ChannelObject<std::string>> queue_;
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};
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// general trainer for async execution
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// local trainer and distributed trainer are supported
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// depends on the assigned device_worker
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class MultiTrainer : public TrainerBase {
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public:
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MultiTrainer() {}
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virtual ~MultiTrainer() {}
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virtual void Initialize(const TrainerDesc& trainer_desc, Dataset* data_set);
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virtual void InitTrainerEnv(const ProgramDesc& main_program,
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const platform::Place& place);
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virtual void InitOtherEnv(const ProgramDesc& main_program);
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virtual void Run();
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virtual void Finalize();
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virtual void InitDumpEnv();
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virtual Scope* GetWorkerScope(int thread_id);
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virtual std::string GetDumpPath(int tid);
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protected:
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int thread_num_;
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std::vector<std::thread> threads_;
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std::vector<DataFeed*> readers_;
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std::vector<std::shared_ptr<DeviceWorker>> workers_;
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std::vector<std::string> need_merge_var_names_;
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int mpi_rank_;
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int mpi_size_;
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int dump_file_num_;
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};
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class DistMultiTrainer : public MultiTrainer {
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public:
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DistMultiTrainer() {}
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virtual ~DistMultiTrainer() {}
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virtual void Initialize(const TrainerDesc& trainer_desc, Dataset* data_set);
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virtual void InitTrainerEnv(const ProgramDesc& main_program,
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const platform::Place& place);
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virtual void InitOtherEnv(const ProgramDesc& main_program);
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virtual void Run();
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virtual void Finalize();
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template <typename T>
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void MergeToRootScope(LoDTensor* root_tensor, LoDTensor* thread_tensor);
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virtual void InitDumpEnv();
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virtual Scope* GetWorkerScope(int thread_id);
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virtual void RegisterHeterCallback();
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protected:
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std::shared_ptr<paddle::framework::PullDenseWorker> pull_dense_worker_;
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};
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#if (defined PADDLE_WITH_CUDA || defined PADDLE_WITH_XPU) && \
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(defined PADDLE_WITH_PSLIB)
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class HeterServiceContext {
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public:
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HeterServiceContext() {}
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virtual ~HeterServiceContext() {
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for (OperatorBase* op : ops_) {
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delete op;
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}
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std::vector<OperatorBase*>().swap(ops_);
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}
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void Reset() { push_dense_status_.clear(); }
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int place_num_;
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Scope* scope_{nullptr};
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#ifdef PADDLE_WITH_CUDA
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cudaEvent_t event_;
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#endif
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std::vector<OperatorBase*> ops_;
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std::vector<::std::future<int32_t>> push_dense_status_;
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};
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class HeterXpuTrainer : public TrainerBase {
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public:
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HeterXpuTrainer() {}
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virtual ~HeterXpuTrainer() {
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for (OperatorBase* op : ops_) {
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delete op;
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}
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std::vector<OperatorBase*>().swap(ops_);
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}
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virtual void Initialize(const TrainerDesc& trainer_desc, Dataset* data_set);
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virtual void InitTrainerEnv(const ProgramDesc& main_program,
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const platform::Place& place);
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virtual void InitOtherEnv(const ProgramDesc& main_program);
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virtual void Run();
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virtual void Finalize();
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virtual void DumpWork(int tid);
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virtual void RegisterServiceHandler();
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virtual int RunTask(const HeterRequest* request, HeterResponse* response);
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virtual Scope* GetWorkerScope(int thread_id);
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virtual void CacheProgram(const ProgramDesc& main_program) {
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new (&program_) ProgramDesc(main_program);
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}
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virtual std::string GetDumpPath(int tid) { return ""; }
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virtual void InitDumpEnv() {}
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template <typename T>
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#ifdef PADDLE_WITH_CUDA
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void HeterMemCpy(LoDTensor* tensor, LoDTensor* root_tensor,
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const paddle::platform::Place& thread_place,
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cudaStream_t stream);
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#endif
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#ifdef PADDLE_WITH_XPU
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void HeterMemCpy(LoDTensor* thread_tensor, LoDTensor* root_tensor,
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const paddle::platform::Place& thread_place);
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#endif
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void CreateThreadParam(const ProgramDesc& program, int num);
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template <typename T>
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void MergeToRootScope(LoDTensor* root_tensor, LoDTensor* thread_tensor);
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int EndPass(const HeterRequest* request, HeterResponse* response);
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int StopService(const HeterRequest* request, HeterResponse* response);
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protected:
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DownpourWorkerParameter param_;
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std::map<uint64_t, std::vector<std::string>> dense_grad_names_;
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std::vector<std::string> need_merge_var_names_;
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float scale_datanorm_;
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int xpu_begin_op_index_;
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int xpu_end_op_index_;
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bool running_;
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paddle::platform::Place place_;
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std::mutex mutex_;
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ProgramDesc program_;
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std::condition_variable cond_;
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std::shared_ptr<paddle::framework::FleetWrapper> fleet_ptr_;
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std::shared_ptr<paddle::framework::HeterWrapper> heter_ptr_;
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std::shared_ptr<paddle::framework::PullDenseWorker> pull_dense_worker_;
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std::vector<OperatorBase*> ops_;
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std::vector<std::string> op_names_;
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std::vector<Scope*> place_scopes_;
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BtObjectPool<HeterServiceContext> object_pool_;
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std::vector<platform::Place> places_;
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#ifdef PADDLE_WITH_CUDA
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std::vector<cudaStream_t> copy_streams_;
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std::vector<cudaEvent_t> events_;
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#endif
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};
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class HeterBoxTrainer : public TrainerBase {
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public:
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HeterBoxTrainer() {}
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virtual ~HeterBoxTrainer() {}
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virtual void Initialize(const TrainerDesc& trainer_desc, Dataset* data_set);
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virtual void InitTrainerEnv(const ProgramDesc& main_program,
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const platform::Place& place);
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virtual void InitOtherEnv(const ProgramDesc& main_program);
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virtual void Run();
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virtual void Finalize();
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virtual void RegisterHeterCallback();
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virtual void DumpWork(int tid);
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virtual Scope* GetWorkerScope(int thread_id);
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virtual void CacheProgram(const ProgramDesc& main_program) {
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new (&program_) ProgramDesc(main_program);
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}
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virtual std::string GetDumpPath(int tid) { return ""; }
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virtual void InitDumpEnv() {}
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template <typename T>
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#ifdef PADDLE_WITH_CUDA
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void HeterMemCpy(LoDTensor* tensor, LoDTensor* root_tensor,
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const paddle::platform::Place& thread_place,
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cudaStream_t stream);
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#endif
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void CreateThreadParam(const ProgramDesc& program, int num);
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template <typename T>
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void MergeToRootScope(LoDTensor* root_tensor, LoDTensor* thread_tensor);
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protected:
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DownpourWorkerParameter param_;
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std::map<uint64_t, std::vector<std::string>> dense_grad_names_;
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std::vector<std::string> need_merge_var_names_;
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float scale_datanorm_;
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paddle::platform::Place place_;
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ProgramDesc program_;
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std::shared_ptr<paddle::framework::FleetWrapper> fleet_ptr_;
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std::shared_ptr<paddle::framework::PullDenseWorker> pull_dense_worker_;
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std::vector<std::shared_ptr<DeviceWorker>> workers_;
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std::vector<platform::Place> places_;
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// ps-gpu
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std::vector<std::thread> pull_threads_;
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std::vector<std::thread> threads_;
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int use_ps_gpu_;
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int thread_num_;
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#ifdef PADDLE_WITH_CUDA
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std::vector<cudaStream_t> copy_streams_;
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std::vector<cudaEvent_t> events_;
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#endif
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};
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#endif
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#if defined(PADDLE_WITH_NCCL)
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class PipelineTrainer : public TrainerBase {
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public:
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PipelineTrainer() {}
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~PipelineTrainer() override {}
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void Initialize(const TrainerDesc& trainer_desc, Dataset* data_set) override;
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void InitTrainerEnv(const ProgramDesc& main_program,
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const platform::Place& place) override;
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void InitOtherEnv(const ProgramDesc& main_program) override;
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void Run() override;
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void Finalize() override;
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virtual Scope* GetWorkerScope(int thread_id);
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void InitDumpEnv() override;
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virtual std::string GetDumpPath(int tid);
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void GetSkipVars(const ProgramDesc& main_program);
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protected:
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int num_microbatches_;
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platform::Place place_;
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std::vector<std::string> skip_vars_;
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TrainerDesc trainer_desc_;
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std::future<void> section_thread_;
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std::shared_ptr<paddle::framework::DeviceWorker> worker_;
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Scope* minibatch_scope_;
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// microbatch_scopes_: [microbatch_id]
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std::vector<Scope*> microbatch_scopes_;
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void CopyParameters(int microbatch_id, const ProgramDesc& program,
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const platform::Place& place);
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};
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#endif
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} // namespace framework
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} // namespace paddle
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