heterps support pscore (#32093)

* pscore support heterps

* fleet cmake

* fleet wrapper

* macro

* solve conflict

* solve conflict

* add unitest

* paddle enforce

* unitest

* unitest

* unitest

CMakeLists.txt

@@ -184,6 +184,7 @@ option(WITH_XBYAK       "Compile with xbyak support"                    ON)
 option(WITH_CONTRIB     "Compile the third-party contributation"        OFF)
 option(WITH_GRPC     "Use grpc as the default rpc framework"            ${WITH_DISTRIBUTE})
 option(WITH_PSCORE     "Compile with parameter server support"         ${WITH_DISTRIBUTE})
+option(WITH_HETERPS     "Compile with heterps"                          OFF})
 option(WITH_INFERENCE_API_TEST   "Test fluid inference C++ high-level api interface"  OFF)
 option(PY_VERSION       "Compile PaddlePaddle with python3 support"     ${PY_VERSION})
 option(WITH_DGC   "Use DGC(Deep Gradient Compression) or not" ${WITH_DISTRIBUTE})

cmake/configure.cmake

@@ -173,6 +173,9 @@ if(WITH_PSCORE)
     add_definitions(-DPADDLE_WITH_PSCORE)
 endif()
 
+if(WITH_HETERPS)
+    add_definitions(-DPADDLE_WITH_HETERPS)
+endif()
 
 if(WITH_GRPC)
     add_definitions(-DPADDLE_WITH_GRPC)

paddle/fluid/distributed/service/CMakeLists.txt

@@ -16,6 +16,7 @@ set_source_files_properties(communicator.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUT
 set_source_files_properties(service.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(brpc_ps_server.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(brpc_ps_client.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+set_source_files_properties(ps_local_client.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 
 set_source_files_properties(brpc_utils.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(heter_server.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
@@ -29,7 +30,8 @@ set_source_files_properties(graph_brpc_client.cc PROPERTIES COMPILE_FLAGS ${DIST
 cc_library(brpc_utils SRCS brpc_utils.cc DEPS tensor device_context ${COMMON_DEPS} ${RPC_DEPS})
 
 cc_library(downpour_server SRCS graph_brpc_server.cc brpc_ps_server.cc DEPS boost eigen3 table brpc_utils simple_threadpool ${RPC_DEPS})
-cc_library(downpour_client SRCS graph_brpc_client.cc brpc_ps_client.cc  DEPS boost eigen3 table brpc_utils simple_threadpool ${RPC_DEPS})
+cc_library(downpour_client SRCS graph_brpc_client.cc brpc_ps_client.cc
+ps_local_client.cc DEPS boost eigen3 table brpc_utils simple_threadpool ${RPC_DEPS})
 
 cc_library(client SRCS ps_client.cc DEPS downpour_client boost ${RPC_DEPS})
 cc_library(server SRCS server.cc DEPS downpour_server boost ${RPC_DEPS})

paddle/fluid/distributed/service/brpc_ps_client.cc

@@ -880,7 +880,7 @@ std::future<int32_t> BrpcPsClient::send_client2client_msg(
   auto promise = std::make_shared<std::promise<int32_t>>();
   std::future<int> fut = promise->get_future();
   if (to_client_id >= _client_channels.size()) {
-    LOG(FATAL) << "to_client_id is out of range clients, which size is "
+    VLOG(0) << "to_client_id is out of range clients, which size is "
             << _client_channels.size();
     promise->set_value(-1);
     return fut;

paddle/fluid/distributed/service/communicator.h

@@ -310,6 +310,8 @@ class Communicator {
     return _worker_ptr;
   }
 
+  RecvCtxMap &GetRecvCtxMap() { return recv_varname_to_ctx_; }
+
   std::shared_ptr<PSClient> _worker_ptr;  // pointer to worker
 
  protected:

paddle/fluid/distributed/service/ps_client.cc

@@ -16,12 +16,15 @@
 #include "glog/logging.h"
 #include "paddle/fluid/distributed/service/brpc_ps_client.h"
 #include "paddle/fluid/distributed/service/graph_brpc_client.h"
+#include "paddle/fluid/distributed/service/ps_local_client.h"
 #include "paddle/fluid/distributed/table/table.h"
 
 namespace paddle {
 namespace distributed {
 REGISTER_PSCORE_CLASS(PSClient, BrpcPsClient);
+REGISTER_PSCORE_CLASS(PSClient, PsLocalClient);
 REGISTER_PSCORE_CLASS(PSClient, GraphBrpcClient);
+
 int32_t PSClient::configure(
     const PSParameter &config,
     const std::map<uint64_t, std::vector<paddle::distributed::Region>> &regions,

paddle/fluid/distributed/service/ps_client.h

@@ -118,6 +118,17 @@ class PSClient {
                                            const uint64_t *keys, size_t num,
                                            bool is_training) = 0;
 
+  virtual ::std::future<int32_t> pull_sparse_ptr(char **select_values,
+                                                 size_t table_id,
+                                                 const uint64_t *keys,
+                                                 size_t num) {
+    VLOG(0) << "Did not implement";
+    std::promise<int32_t> promise;
+    std::future<int> fut = promise.get_future();
+    promise.set_value(-1);
+    return fut;
+  }
+
   virtual std::future<int32_t> print_table_stat(uint32_t table_id) = 0;
 
   // 确保所有积攒中的请求都发起发送
@@ -150,7 +161,7 @@ class PSClient {
   virtual std::future<int32_t> send_client2client_msg(int msg_type,
                                                       int to_client_id,
                                                       const std::string &msg) {
-    LOG(FATAL) << "Did not implement";
+    VLOG(0) << "Did not implement";
     std::promise<int32_t> promise;
     std::future<int> fut = promise.get_future();
     promise.set_value(-1);

paddle/fluid/distributed/service/ps_local_client.cc

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "paddle/fluid/distributed/service/ps_local_client.h"
+#include "paddle/fluid/distributed/table/table.h"
+
+//#define pslib_debug_dense_compress
+
+namespace paddle {
+namespace distributed {
+int32_t PsLocalClient::initialize() {
+  const auto& downpour_param = _config.server_param().downpour_server_param();
+  TableManager::instance().initialize();
+  for (size_t i = 0; i < downpour_param.downpour_table_param_size(); ++i) {
+    auto* table = CREATE_PSCORE_CLASS(
+        Table, downpour_param.downpour_table_param(i).table_class());
+    table->initialize(downpour_param.downpour_table_param(i),
+                      _config.fs_client_param());
+    table->set_shard(0, 1);
+    _table_map[downpour_param.downpour_table_param(i).table_id()].reset(table);
+  }
+  return 0;
+}
+
+::std::future<int32_t> PsLocalClient::shrink(uint32_t table_id,
+                                             const std::string threshold) {
+  // TODO
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::load(const std::string& epoch,
+                                           const std::string& mode) {
+  // TODO
+  // for (auto& it : _table_map) {
+  //    load(it.first, epoch, mode);
+  //}
+  return done();
+}
+::std::future<int32_t> PsLocalClient::load(uint32_t table_id,
+                                           const std::string& epoch,
+                                           const std::string& mode) {
+  // TODO
+  // auto* table_ptr = table(table_id);
+  // table_ptr->load(epoch, mode);
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::save(const std::string& epoch,
+                                           const std::string& mode) {
+  // TODO
+  for (auto& it : _table_map) {
+    save(it.first, epoch, mode);
+  }
+  return done();
+}
+::std::future<int32_t> PsLocalClient::save(uint32_t table_id,
+                                           const std::string& epoch,
+                                           const std::string& mode) {
+  // TODO
+  auto* table_ptr = table(table_id);
+  table_ptr->flush();
+  table_ptr->save(epoch, mode);
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::clear() {
+  // TODO
+  return done();
+}
+::std::future<int32_t> PsLocalClient::clear(uint32_t table_id) {
+  // TODO
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::flush() {
+  // no need
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::stop_server() {
+  // no need
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::pull_dense(Region* regions,
+                                                 size_t region_num,
+                                                 size_t table_id) {
+  auto* accessor = table_accessor(table_id);
+  auto* table_ptr = table(table_id);
+
+  uint32_t num_per_shard = dense_dim_per_shard(accessor->fea_dim(), 1);
+  std::vector<float> region_buffer;
+  region_buffer.resize(num_per_shard);
+  table_ptr->pull_dense(region_buffer.data(), region_buffer.size());
+
+  size_t region_idx = 0;
+  size_t region_data_idx = 0;
+  size_t shard_data_size = num_per_shard;
+  size_t shard_buffer_remain = shard_data_size * sizeof(float);
+  PADDLE_ENFORCE_EQ(
+      shard_buffer_remain, region_buffer.size() * sizeof(float),
+      platform::errors::PreconditionNotMet("pull dense size error."));
+  size_t index = 0;
+  while (shard_buffer_remain > 0 && region_idx < region_num) {
+    auto& region = regions[region_idx];
+    if (region.size - region_data_idx >= shard_buffer_remain) {
+      memcpy((void*)(region.data + region_data_idx),
+             (uint8_t*)(void*)(region_buffer.data()) + index,
+             shard_buffer_remain);
+      region_data_idx += shard_buffer_remain;
+      shard_buffer_remain = 0;
+    } else if (region.size - region_data_idx == 0) {
+      ++region_idx;
+      region_data_idx = 0;
+    } else {
+      memcpy((void*)(region.data + region_data_idx),
+             (uint8_t*)(void*)(region_buffer.data()) + index,
+             region.size - region_data_idx);
+      shard_buffer_remain -= (region.size - region_data_idx);
+      index += (region.size - region_data_idx);
+      ++region_idx;
+      region_data_idx = 0;
+    }
+  }
+
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::push_dense_param(const Region* regions,
+                                                       size_t region_num,
+                                                       size_t table_id) {
+  auto* accessor = table_accessor(table_id);
+  auto* table_ptr = table(table_id);
+
+  std::vector<float> region_buffer;
+  region_buffer.resize(dense_dim_per_shard(accessor->fea_dim(), 1), 0);
+  for (size_t i = 0, offset = 0; i < region_num; ++i) {
+    uint32_t data_num = regions[i].size / sizeof(float);
+    memcpy(region_buffer.data() + offset, regions[i].data, regions[i].size);
+    offset += data_num;
+  }
+
+  // table_ptr->push_dense_param(region_buffer.data(), region_buffer.size());
+
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::push_dense_raw_gradient(
+    int table_id, float* total_send_data, size_t total_send_data_size,
+    void* callback) {
+  VLOG(1) << "wxx push_dense_raw_gradient";
+
+  PSClientClosure* closure = reinterpret_cast<PSClientClosure*>(callback);
+
+  auto* table_ptr = table(table_id);
+
+  table_ptr->push_dense(total_send_data, total_send_data_size);
+  delete closure;
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::push_dense(const Region* regions,
+                                                 size_t region_num,
+                                                 size_t table_id) {
+  auto* accessor = table_accessor(table_id);
+  auto* table_ptr = table(table_id);
+
+  std::vector<float> region_buffer;
+  region_buffer.resize(dense_dim_per_shard(accessor->fea_dim(), 1));
+  size_t data_size = region_buffer.size();
+  for (size_t i = 0, offset = 0; i < region_num; ++i) {
+    uint32_t data_num = regions[i].size / sizeof(float);
+    PADDLE_ENFORCE_LE(
+        offset + data_num, data_size,
+        platform::errors::PreconditionNotMet(
+            "invalid dense size, cur pos[%d] data_num[%d] size[%d]", offset,
+            data_num, data_size));
+    memcpy(region_buffer.data() + offset, regions[i].data, regions[i].size);
+    offset += data_num;
+  }
+
+  table_ptr->push_dense(region_buffer.data(), region_buffer.size());
+
+  return done();
+}
+
+//::std::future<int32_t> PsLocalClient::pull_sparse(float** select_values,
+//                                                  size_t table_id,
+//                                                  const uint64_t* keys,
+//                                                  size_t num) {
+//  // FIXME
+//  // auto timer =
+//  // std::make_shared<CostTimer>("pslib_downpour_client_pull_sparse");
+//  // auto local_timer =
+//  // std::make_shared<CostTimer>("pslib_downpour_client_pull_sparse_local");
+//  //将key拆分到各shard请求，并记录原始对应value指针
+//  auto* accessor = table_accessor(table_id);
+//  auto* table_ptr = table(table_id);
+//  size_t value_size = accessor->select_size();
+//
+//  // table_ptr->pull_sparse(keys, num);
+//  std::vector<float> res_data;
+//  res_data.resize(num * value_size / sizeof(float));
+//  table_ptr->pull_sparse(res_data.data(), keys, num);
+//  // memcpy(select_values[0], res_data->data(), res_data->size() *
+//  // sizeof(float));
+//  size_t offset = 0;
+//  for (int i = 0; i < num; ++i) {
+//    memcpy(select_values[i], (char*)res_data.data() + offset, value_size);
+//    offset += value_size;
+//  }
+//
+//  // return fut;
+//  return done();
+//}
+
+::std::future<int32_t> PsLocalClient::pull_sparse_ptr(char** select_values,
+                                                      size_t table_id,
+                                                      const uint64_t* keys,
+                                                      size_t num) {
+  // FIXME
+  // auto timer =
+  // std::make_shared<CostTimer>("pslib_downpour_client_pull_sparse");
+  // auto local_timer =
+  // std::make_shared<CostTimer>("pslib_downpour_client_pull_sparse_local");
+  //将key拆分到各shard请求，并记录原始对应value指针
+  auto* table_ptr = table(table_id);
+
+  table_ptr->pull_sparse_ptr(select_values, keys, num);
+
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::push_sparse_raw_gradient(
+    size_t table_id, const uint64_t* keys, const float** update_values,
+    size_t num, void* callback) {
+  VLOG(1) << "wxx push_sparse_raw_gradient";
+  PSClientClosure* closure = reinterpret_cast<PSClientClosure*>(callback);
+  auto* accessor = table_accessor(table_id);
+  auto* table_ptr = table(table_id);
+
+  table_ptr->push_sparse(keys, update_values, num);
+  delete closure;
+  return done();
+}
+
+::std::future<int32_t> PsLocalClient::push_sparse(size_t table_id,
+                                                  const uint64_t* keys,
+                                                  const float** update_values,
+                                                  size_t num) {
+  auto* accessor = table_accessor(table_id);
+  auto* table_ptr = table(table_id);
+
+  table_ptr->push_sparse(keys, update_values, num);
+  return done();
+}
+}
+}

paddle/fluid/distributed/service/ps_local_client.h

+// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License 0//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+#include "brpc/channel.h"
+#include "brpc/controller.h"
+#include "brpc/server.h"
+#include "paddle/fluid/distributed/service/ps_client.h"
+
+namespace paddle {
+namespace distributed {
+
+class Table;
+
+class PsLocalClient : public PSClient {
+ public:
+  PsLocalClient() {}
+  virtual ~PsLocalClient() { _running = false; }
+  virtual int32_t create_client2client_connection(int pslib_timeout_ms,
+                                                  int pslib_connect_timeout_ms,
+                                                  int max_retry) {
+    return 0;
+  }
+
+  virtual ::std::future<int32_t> shrink(uint32_t table_id,
+                                        const std::string threshold) override;
+  virtual ::std::future<int32_t> load(const std::string& epoch,
+                                      const std::string& mode) override;
+  virtual ::std::future<int32_t> load(uint32_t table_id,
+                                      const std::string& epoch,
+                                      const std::string& mode) override;
+
+  virtual ::std::future<int32_t> save(const std::string& epoch,
+                                      const std::string& mode) override;
+  virtual ::std::future<int32_t> save(uint32_t table_id,
+                                      const std::string& epoch,
+                                      const std::string& mode) override;
+
+  virtual ::std::future<int32_t> clear() override;
+  virtual ::std::future<int32_t> clear(uint32_t table_id) override;
+
+  virtual ::std::future<int32_t> stop_server() override;
+
+  virtual void finalize_worker() override {}
+  virtual ::std::future<int32_t> pull_dense(Region* regions, size_t region_num,
+                                            size_t table_id);
+
+  virtual ::std::future<int32_t> push_dense(const Region* regions,
+                                            size_t region_num, size_t table_id);
+
+  virtual ::std::future<int32_t> push_dense_param(const Region* regions,
+                                                  size_t region_num,
+                                                  size_t table_id);
+
+  virtual ::std::future<int32_t> pull_sparse(float** select_values,
+                                             size_t table_id,
+                                             const uint64_t* keys, size_t num,
+                                             bool is_training) {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+  virtual ::std::future<int32_t> pull_sparse_ptr(char** select_values,
+                                                 size_t table_id,
+                                                 const uint64_t* keys,
+                                                 size_t num);
+
+  virtual ::std::future<int32_t> print_table_stat(uint32_t table_id) {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+  virtual ::std::future<int32_t> push_sparse(size_t table_id,
+                                             const uint64_t* keys,
+                                             const float** update_values,
+                                             size_t num);
+
+  virtual ::std::future<int32_t> flush();
+  // server profilera
+  virtual std::future<int32_t> start_profiler() {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  };
+
+  virtual std::future<int32_t> stop_profiler() {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+  virtual std::future<int32_t> barrier(size_t table_id, uint32_t barrier_type) {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+  virtual std::future<int32_t> pull_geo_param(size_t table_id,
+                                              std::vector<float>* values,
+                                              std::vector<uint64_t>* keys,
+                                              int pserver_idx) {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+  virtual std::future<int32_t> push_global_step(int table_id,
+                                                int64_t* total_send_data,
+                                                void* done) {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+  // recv table from server and save it in LodTensor
+  virtual int32_t recv_and_save_table(const uint64_t table_id,
+                                      const std::string& path) {
+    return 0;
+  }
+
+  virtual ::std::future<int32_t> send_client2client_msg(
+      int msg_type, int to_client_id, const std::string& msg) override {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+  virtual size_t get_server_nums() { return 1; }
+
+  virtual std::future<int32_t> push_dense_raw_gradient(
+      int table_id, float* total_send_data, size_t total_send_data_size,
+      void* callback) override;
+
+  virtual std::future<int32_t> push_sparse_raw_gradient(
+      size_t table_id, const uint64_t* keys, const float** update_values,
+      size_t num, void* callback) override;
+
+  virtual std::future<int32_t> push_sparse_raw_gradient_partial(
+      size_t table_id, const uint64_t* keys, const float** update_values,
+      uint32_t num, void* done, int pserver_idx) override {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+  virtual std::future<int32_t> push_sparse_param(size_t table_id,
+                                                 const uint64_t* keys,
+                                                 const float** update_values,
+                                                 size_t num,
+                                                 void* done) override {
+    std::promise<int32_t> prom;
+    std::future<int32_t> fut = prom.get_future();
+    prom.set_value(0);
+
+    return fut;
+  }
+
+ private:
+  virtual int32_t initialize() override;
+
+  std::future<int32_t> done() {
+    std::shared_ptr<std::promise<int32_t>> prom =
+        std::make_shared<std::promise<int32_t>>();
+    std::future<int32_t> fut = prom->get_future();
+    prom->set_value(0);
+    return fut;
+  }
+
+  inline uint32_t dense_dim_per_shard(uint32_t dense_dim_total,
+                                      uint32_t shard_num) {
+    return dense_dim_total / shard_num + 1;
+  }
+
+  inline std::unordered_map<uint32_t, std::shared_ptr<Table>>* table() {
+    return &_table_map;
+  }
+
+  inline Table* table(size_t table_id) {
+    auto itr = _table_map.find(table_id);
+    if (itr != _table_map.end()) {
+      return itr->second.get();
+    }
+    LOG(ERROR) << "table not found " << table_id;
+    return NULL;
+  }
+
+  std::unordered_map<uint32_t, std::shared_ptr<Table>> _table_map;
+
+  bool _running = false;
+  bool _flushing = false;
+
+ private:
+  float _mae = 0;
+  float _mse = 0;
+  uint16_t _push_times = 0;
+};
+}
+}

paddle/fluid/distributed/service/ps_local_server.h

+// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <memory>
+#include <vector>
+#include "paddle/fluid/distributed/service/server.h"
+
+namespace paddle {
+namespace distributed {
+
+class PsLocalServer : public PSServer {
+ public:
+  PsLocalServer() {}
+  virtual ~PsLocalServer() {}
+  virtual uint64_t start() { return 0; }
+  virtual uint64_t start(const std::string& ip, uint32_t port) { return 0; }
+  virtual int32_t stop() { return 0; }
+  virtual int32_t port() { return 0; }
+
+ private:
+  virtual int32_t initialize() { return 0; }
+};
+}
+}

paddle/fluid/distributed/service/server.cc

@@ -17,12 +17,14 @@
 #include "glog/logging.h"
 #include "paddle/fluid/distributed/service/brpc_ps_server.h"
 #include "paddle/fluid/distributed/service/graph_brpc_server.h"
+#include "paddle/fluid/distributed/service/ps_local_server.h"
 #include "paddle/fluid/distributed/table/table.h"
 
 namespace paddle {
 namespace distributed {
 
 REGISTER_PSCORE_CLASS(PSServer, BrpcPsServer);
+REGISTER_PSCORE_CLASS(PSServer, PsLocalServer);
 REGISTER_PSCORE_CLASS(PsBaseService, BrpcPsService);
 REGISTER_PSCORE_CLASS(PSServer, GraphBrpcServer);
 REGISTER_PSCORE_CLASS(PsBaseService, GraphBrpcService);

paddle/fluid/distributed/table/common_sparse_table.cc

@@ -446,6 +446,43 @@ int32_t CommonSparseTable::pull_sparse(float* pull_values,
   return 0;
 }
 
+int32_t CommonSparseTable::pull_sparse_ptr(char** pull_values,
+                                           const uint64_t* keys, size_t num) {
+  std::vector<std::vector<uint64_t>> offset_bucket;
+  offset_bucket.resize(task_pool_size_);
+
+  for (int x = 0; x < num; ++x) {
+    auto y = keys[x] % task_pool_size_;
+    offset_bucket[y].push_back(x);
+  }
+
+  std::vector<std::future<int>> tasks(task_pool_size_);
+
+  for (int shard_id = 0; shard_id < task_pool_size_; ++shard_id) {
+    tasks[shard_id] = _shards_task_pool[shard_id]->enqueue(
+        [this, shard_id, &keys, &offset_bucket, &pull_values]() -> int {
+          auto& block = shard_values_[shard_id];
+          auto& offsets = offset_bucket[shard_id];
+
+          for (int i = 0; i < offsets.size(); ++i) {
+            auto offset = offsets[i];
+            auto id = keys[offset];
+            auto* value = block->InitGet(id);
+            // std::copy_n(value + param_offset_, param_dim_,
+            //            pull_values + param_dim_ * offset);
+            pull_values[offset] = (char*)value;
+          }
+
+          return 0;
+        });
+  }
+
+  for (size_t shard_id = 0; shard_id < tasks.size(); ++shard_id) {
+    tasks[shard_id].wait();
+  }
+  return 0;
+}
+
 int32_t CommonSparseTable::_push_sparse(const uint64_t* keys,
                                         const float* values, size_t num) {
   rwlock_->RDLock();
@@ -502,6 +539,45 @@ int32_t CommonSparseTable::push_sparse(const uint64_t* keys,
   return 0;
 }
 
+int32_t CommonSparseTable::push_sparse(const uint64_t* keys,
+                                       const float** values, size_t num) {
+  _push_sparse(keys, values, num);
+  return 0;
+}
+
+int32_t CommonSparseTable::_push_sparse(const uint64_t* keys,
+                                        const float** values, size_t num) {
+  rwlock_->RDLock();
+  std::vector<std::vector<uint64_t>> offset_bucket;
+  offset_bucket.resize(task_pool_size_);
+
+  for (int x = 0; x < num; ++x) {
+    auto y = keys[x] % task_pool_size_;
+    offset_bucket[y].push_back(x);
+  }
+
+  std::vector<std::future<int>> tasks(task_pool_size_);
+
+  for (int shard_id = 0; shard_id < task_pool_size_; ++shard_id) {
+    tasks[shard_id] = _shards_task_pool[shard_id]->enqueue(
+        [this, shard_id, &keys, &values, num, &offset_bucket]() -> int {
+          auto& offsets = offset_bucket[shard_id];
+          for (size_t i = 0; i < offsets.size(); ++i) {
+            std::vector<uint64_t> tmp_off = {0};
+            optimizer_->update(keys + offsets[i], values[offsets[i]], num,
+                               tmp_off, shard_values_[shard_id].get());
+          }
+          return 0;
+        });
+  }
+
+  for (size_t shard_id = 0; shard_id < tasks.size(); ++shard_id) {
+    tasks[shard_id].wait();
+  }
+  rwlock_->UNLock();
+  return 0;
+}
+
 int32_t CommonSparseTable::push_sparse_param(const uint64_t* keys,
                                              const float* values, size_t num) {
   rwlock_->RDLock();

paddle/fluid/distributed/table/common_sparse_table.h

@@ -63,9 +63,15 @@ class CommonSparseTable : public SparseTable {
   virtual std::pair<int64_t, int64_t> print_table_stat();
   virtual int32_t pull_sparse(float* values, const PullSparseValue& pull_value);
 
+  virtual int32_t pull_sparse_ptr(char** pull_values, const uint64_t* keys,
+                                  size_t num);
+
   virtual int32_t push_sparse(const uint64_t* keys, const float* values,
                               size_t num);
 
+  virtual int32_t push_sparse(const uint64_t* keys, const float** values,
+                              size_t num);
+
   // only for sparse geo table
   virtual int32_t push_sparse_param(const uint64_t* keys, const float* values,
                                     size_t num);
@@ -80,6 +86,8 @@ class CommonSparseTable : public SparseTable {
  protected:
   virtual int32_t _push_sparse(const uint64_t* keys, const float* values,
                                size_t num);
+  virtual int32_t _push_sparse(const uint64_t* keys, const float** values,
+                               size_t num);
 
  private:
   const int task_pool_size_ = 11;

paddle/fluid/distributed/table/depends/large_scale_kv.h

@@ -87,7 +87,7 @@ class ValueBlock {
         value_dims_(value_dims),
         value_offsets_(value_offsets),
         value_idx_(value_idx) {
-    for (int x = 0; x < value_dims.size(); ++x) {
+    for (size_t x = 0; x < value_dims.size(); ++x) {
       value_length_ += value_dims[x];
     }
 
@@ -96,13 +96,15 @@ class ValueBlock {
       auto slices = string::split_string<std::string>(entry_attr, ":");
       if (slices[0] == "none") {
         entry_func_ = std::bind(&count_entry, std::placeholders::_1, 0);
+        threshold_ = 0;
       } else if (slices[0] == "count_filter_entry") {
-        int threshold = std::stoi(slices[1]);
-        entry_func_ = std::bind(&count_entry, std::placeholders::_1, threshold);
+        threshold_ = std::stoi(slices[1]);
+        entry_func_ =
+            std::bind(&count_entry, std::placeholders::_1, threshold_);
       } else if (slices[0] == "probability_entry") {
-        float threshold = std::stof(slices[1]);
+        threshold_ = std::stof(slices[1]);
         entry_func_ =
-            std::bind(&probility_entry, std::placeholders::_1, threshold);
+            std::bind(&probility_entry, std::placeholders::_1, threshold_);
       } else {
         PADDLE_THROW(platform::errors::InvalidArgument(
             "Not supported Entry Type : %s, Only support [CountFilterEntry, "
@@ -170,6 +172,21 @@ class ValueBlock {
     return value->data_.data();
   }
 
+  VALUE *InitGet(const uint64_t &id, const bool with_update = true,
+                 const int counter = 1) {
+    if (!Has(id)) {
+      values_[id] = std::make_shared<VALUE>(value_length_);
+    }
+
+    auto &value = values_.at(id);
+
+    if (with_update) {
+      AttrUpdate(value, counter);
+    }
+
+    return value.get();
+  }
+
   void AttrUpdate(std::shared_ptr<VALUE> value, const int counter) {
     // update state
     value->unseen_days_ = 0;
@@ -179,7 +196,7 @@ class ValueBlock {
       value->is_entry_ = entry_func_(value);
       if (value->is_entry_) {
         // initialize
-        for (int x = 0; x < value_names_.size(); ++x) {
+        for (size_t x = 0; x < value_names_.size(); ++x) {
           initializers_[x]->GetValue(value->data_.data() + value_offsets_[x],
                                      value_dims_[x]);
         }
@@ -224,6 +241,8 @@ class ValueBlock {
     return;
   }
 
+  float GetThreshold() { return threshold_; }
+
  private:
   bool Has(const uint64_t id) {
     auto got = values_.find(id);
@@ -246,6 +265,7 @@ class ValueBlock {
 
   std::function<bool(std::shared_ptr<VALUE>)> entry_func_;
   std::vector<std::shared_ptr<Initializer>> initializers_;
+  float threshold_;
 };
 
 }  // namespace distributed

paddle/fluid/distributed/table/table.h

@@ -48,10 +48,17 @@ class Table {
     return 0;
   }
 
+  virtual int32_t pull_sparse_ptr(char **pull_values, const uint64_t *keys,
+                                  size_t num) {
+    VLOG(0) << "NOT IMPLEMENT";
+    return 0;
+  }
   virtual int32_t pull_sparse(float *values,
                               const PullSparseValue &pull_value) = 0;
   virtual int32_t push_sparse(const uint64_t *keys, const float *values,
                               size_t num) = 0;
+  virtual int32_t push_sparse(const uint64_t *keys, const float **values,
+                              size_t num){};
   virtual int32_t push_sparse_param(const uint64_t *keys, const float *values,
                                     size_t num) {
     return 0;

paddle/fluid/framework/device_worker.h

@@ -562,7 +562,6 @@ class PSGPUWorker : public HogwildWorker {
   void ResetStat();
 
  protected:
-  std::shared_ptr<paddle::framework::FleetWrapper> fleet_ptr_;
   void PushGradients();
   void DumpParam();
   void CopySparseTable();

paddle/fluid/framework/distributed_strategy.proto

@@ -124,6 +124,7 @@ message AsyncConfig {
   optional bool launch_barrier = 9 [ default = true ];
   optional string heter_worker_device_guard = 10 [ default = 'cpu' ];
   optional int32 lr_decay_steps = 11 [ default = 10 ];
+  optional int32 use_ps_gpu = 12 [ default = 0 ];
 }
 
 message PipelineConfig {

paddle/fluid/framework/fleet/CMakeLists.txt

 if(WITH_PSLIB)
     cc_library(fleet_wrapper SRCS fleet_wrapper.cc DEPS framework_proto variable_helper scope pslib_brpc pslib)
+else()
+    cc_library(fleet_wrapper SRCS fleet_wrapper.cc DEPS framework_proto variable_helper scope)
+endif(WITH_PSLIB)
+
+if(WITH_HETERPS)
     if(WITH_NCCL)
         nv_library(ps_gpu_wrapper SRCS ps_gpu_wrapper.cu ps_gpu_wrapper.cc
         DEPS heter_ps)
@@ -8,13 +13,10 @@ if(WITH_PSLIB)
         hip_library(ps_gpu_wrapper SRCS ps_gpu_wrapper.cu ps_gpu_wrapper.cc
         DEPS heter_ps)
         add_subdirectory(heter_ps)
-    else()
-        cc_library(ps_gpu_wrapper SRCS ps_gpu_wrapper.cc)
     endif(WITH_NCCL)
 else()
-    cc_library(fleet_wrapper SRCS fleet_wrapper.cc DEPS framework_proto variable_helper scope)
     cc_library(ps_gpu_wrapper SRCS ps_gpu_wrapper.cc)
-endif(WITH_PSLIB)
+endif(WITH_HETERPS)
 
 if(WITH_NCCL OR WITH_RCCL)
     cc_library(nccl_wrapper SRCS nccl_wrapper.cc DEPS framework_proto variable_helper scope)

paddle/fluid/framework/fleet/fleet_wrapper.h

@@ -34,6 +34,9 @@ limitations under the License. */
 #include "paddle/fluid/framework/tensor.h"
 #include "paddle/fluid/framework/variable_helper.h"
 #include "paddle/fluid/platform/macros.h"  // for DISABLE_COPY_AND_ASSIGN
+#ifdef PADDLE_WITH_HETERPS
+#include "paddle/fluid/platform/type_defs.h"
+#endif
 
 namespace paddle {
 namespace framework {

paddle/fluid/framework/fleet/heter_context.h

@@ -14,15 +14,21 @@ limitations under the License. */
 
 #pragma once
 
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
 
 #include <algorithm>
 #include <map>
 #include <unordered_map>
 #include <vector>
 
+#ifdef PADDLE_WITH_PSLIB
 #include "common_value.h"  // NOLINT
+#endif
+
+#ifdef PADDLE_WITH_PSCORE
+#include "paddle/fluid/distributed/table/depends/large_scale_kv.h"
+#endif
+
 #include "paddle/fluid/framework/fleet/heter_ps/feature_value.h"
 #include "paddle/fluid/framework/scope.h"
 
@@ -39,7 +45,12 @@ class HeterContext {
   }
   Scope* scope_{nullptr};
   std::vector<std::vector<FeatureKey>> feature_keys_;
+#ifdef PADDLE_WITH_PSLIB
   std::vector<std::vector<paddle::ps::DownpourFixedFeatureValue*>> value_ptr_;
+#endif
+#ifdef PADDLE_WITH_PSCORE
+  std::vector<std::vector<paddle::distributed::VALUE*>> value_ptr_;
+#endif
   std::vector<std::vector<FeatureValue>> device_values_;
   std::vector<std::vector<FeatureKey>> device_keys_;
   std::vector<std::mutex*> mutex_;

paddle/fluid/framework/fleet/heter_ps/feature_value.h

@@ -14,7 +14,7 @@ limitations under the License. */
 
 #pragma once
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 #include <iostream>
 

paddle/fluid/framework/fleet/heter_ps/hashtable.h

@@ -17,11 +17,17 @@ limitations under the License. */
 #include <limits>
 #include <memory>
 #include <vector>
+#ifdef PADDLE_WTIH_PSLIB
 #include "common_value.h"  // NOLINT
+#endif
+#ifdef PADDLE_WITH_PSCORE
+#endif
 #include "thrust/pair.h"
 //#include "cudf/concurrent_unordered_map.cuh.h"
 #include "paddle/fluid/framework/fleet/heter_ps/cudf/concurrent_unordered_map.cuh.h"
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
+#include "paddle/fluid/distributed/table/depends/large_scale_kv.h"
+#include "paddle/fluid/platform/type_defs.h"
 
 namespace paddle {
 namespace framework {

paddle/fluid/framework/fleet/heter_ps/hashtable_inl.h

@@ -12,7 +12,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {
@@ -119,6 +119,7 @@ void HashTable<KeyType, ValType>::dump_to_cpu(int devid, cudaStream_t stream) {
       continue;
     }
     ValType& gpu_val = kv[i].second;
+#ifdef PADDLE_WITH_PSLIB
     auto* downpour_value =
         (paddle::ps::DownpourFixedFeatureValue*)(gpu_val.cpu_ptr);
     int downpour_value_size = downpour_value->size();
@@ -138,6 +139,14 @@ void HashTable<KeyType, ValType>::dump_to_cpu(int devid, cudaStream_t stream) {
         cpu_val[x + 7] = gpu_val.mf[x];
       }
     }
+#endif
+#ifdef PADDLE_WITH_PSCORE
+    auto* downpour_value = (paddle::distributed::VALUE*)(gpu_val.cpu_ptr);
+    downpour_value->count_ = gpu_val.show;
+    for (int x = 0; x < gpu_val.mf_size; x++) {
+      downpour_value->data_[x] = gpu_val.mf[x];
+    }
+#endif
   }
 
   container_->prefetch(devid, stream);

paddle/fluid/framework/fleet/heter_ps/heter_comm.h

@@ -25,7 +25,7 @@ limitations under the License. */
 #include "paddle/fluid/platform/place.h"
 #include "thrust/pair.h"
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {
@@ -182,7 +182,7 @@ class HeterComm {
   std::vector<std::vector<Path>> path_;
   std::vector<LocalStorage> storage_;
   int feanum_{1800 * 2048};
-  int multi_node_{1};
+  int multi_node_{0};
   std::vector<ncclComm_t> nccl_inner_comms_;
   std::vector<ncclComm_t> nccl_inter_comms_;
   int node_size_;

paddle/fluid/framework/fleet/heter_ps/heter_comm_inl.h

@@ -12,9 +12,9 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 #pragma once
+#ifdef PADDLE_WITH_HETERPS
 #include <queue>
 
-#ifdef PADDLE_WITH_PSLIB
 namespace paddle {
 namespace framework {
 

paddle/fluid/framework/fleet/heter_ps/heter_ps.cu

@@ -15,7 +15,7 @@ limitations under the License. */
 #include <vector>
 #include "paddle/fluid/framework/fleet/heter_ps/heter_ps.h"
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {
@@ -54,8 +54,8 @@ void HeterPs::show_one_table(int gpu_num) { comm_->show_one_table(gpu_num); }
 
 void HeterPs::push_sparse(int num, FeatureKey* d_keys,
                           FeaturePushValue* d_grads, size_t len) {
-  // comm_->push_sparse(num, d_keys, d_grads, len, opt_);
-  comm_->push_sparse_multi_node(num, d_keys, d_grads, len, opt_);
+  comm_->push_sparse(num, d_keys, d_grads, len, opt_);
+  // comm_->push_sparse_multi_node(num, d_keys, d_grads, len, opt_);
 }
 
 void HeterPs::set_nccl_comm_and_size(const std::vector<ncclComm_t>& inner_comms,

paddle/fluid/framework/fleet/heter_ps/heter_ps.h

@@ -18,7 +18,7 @@ limitations under the License. */
 #include "paddle/fluid/framework/fleet/heter_ps/heter_ps_base.h"
 #include "paddle/fluid/framework/fleet/heter_ps/optimizer.cuh.h"
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {

paddle/fluid/framework/fleet/heter_ps/heter_ps_base.h

@@ -17,7 +17,7 @@ limitations under the License. */
 #include "paddle/fluid/framework/fleet/heter_ps/feature_value.h"
 #include "paddle/fluid/framework/fleet/heter_ps/heter_resource.h"
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {

paddle/fluid/framework/fleet/heter_ps/heter_resource.cc

@@ -12,7 +12,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 #include "heter_resource.h"
 #include "paddle/fluid/platform/cuda_device_guard.h"
 

paddle/fluid/framework/fleet/heter_ps/heter_resource.h

@@ -20,7 +20,7 @@ limitations under the License. */
 #include "paddle/fluid/platform/cuda_device_guard.h"
 #include "paddle/fluid/platform/enforce.h"
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {

paddle/fluid/framework/fleet/heter_ps/optimizer.cuh.h

@@ -18,7 +18,7 @@ limitations under the License. */
 #include "optimizer_conf.h"
 #include "paddle/fluid/framework/fleet/heter_ps/feature_value.h"
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 
 namespace paddle {
 namespace framework {

paddle/fluid/framework/fleet/ps_gpu_wrapper.cc

@@ -26,8 +26,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
 
 #include <algorithm>
 #include <deque>
@@ -58,7 +57,12 @@ void PSGPUWrapper::BuildTask(std::shared_ptr<HeterContext> gpu_task,
   auto& device_mutex = gpu_task->mutex_;
 
   std::vector<std::thread> threads;
+#ifdef PADDLE_WITH_PSLIB
   auto fleet_ptr = FleetWrapper::GetInstance();
+#endif
+#ifdef PADDLE_WITH_PSCORE
+  auto fleet_ptr = paddle::distributed::Communicator::GetInstance();
+#endif
 
   // data should be in input channel
   thread_keys_.resize(thread_keys_thread_num_);
@@ -124,9 +128,16 @@ void PSGPUWrapper::BuildTask(std::shared_ptr<HeterContext> gpu_task,
   auto ptl_func = [this, &local_keys, &local_ptr, &table_id,
                    &fleet_ptr](int i) {
     size_t key_size = local_keys[i].size();
+#ifdef PADDLE_WITH_PSLIB
     auto tt = fleet_ptr->pslib_ptr_->_worker_ptr->pull_sparse_ptr(
         reinterpret_cast<char**>(local_ptr[i].data()), table_id,
         local_keys[i].data(), key_size);
+#endif
+#ifdef PADDLE_WITH_PSCORE
+    auto tt = fleet_ptr->_worker_ptr->pull_sparse_ptr(
+        reinterpret_cast<char**>(local_ptr[i].data()), table_id,
+        local_keys[i].data(), key_size);
+#endif
     tt.wait();
     auto status = tt.get();
     // auto status = 0;
@@ -153,8 +164,14 @@ void PSGPUWrapper::BuildTask(std::shared_ptr<HeterContext> gpu_task,
   auto build_func = [device_num, &local_keys, &local_ptr, &device_keys,
                      &device_vals, &device_mutex](int i) {
     std::vector<std::vector<FeatureKey>> task_keys(device_num);
+#ifdef PADDLE_WITH_PSLIB
     std::vector<std::vector<paddle::ps::DownpourFixedFeatureValue*>> task_ptrs(
         device_num);
+#endif
+
+#ifdef PADDLE_WITH_PSCORE
+    std::vector<std::vector<paddle::distributed::VALUE*>> task_ptrs(device_num);
+#endif
 
     for (size_t j = 0; j < local_keys[i].size(); j++) {
       int shard = local_keys[i][j] % device_num;
@@ -169,7 +186,7 @@ void PSGPUWrapper::BuildTask(std::shared_ptr<HeterContext> gpu_task,
       int cur = device_keys[dev].size();
       device_keys[dev].resize(device_keys[dev].size() + len);
       device_vals[dev].resize(device_vals[dev].size() + len);
-
+#ifdef PADDLE_WITH_PSLIB
       for (int j = 0; j < len; ++j) {
         device_keys[dev][cur + j] = task_keys[dev][j];
         float* ptr_val = task_ptrs[dev][j]->data();
@@ -196,6 +213,35 @@ void PSGPUWrapper::BuildTask(std::shared_ptr<HeterContext> gpu_task,
           }
         }
       }
+#endif
+#ifdef PADDLE_WITH_PSCORE
+      for (int j = 0; j < len; ++j) {
+        device_keys[dev][cur + j] = task_keys[dev][j];
+        distributed::VALUE* ptr_val = task_ptrs[dev][j];
+        FeatureValue& val = device_vals[dev][cur + j];
+        bool has_mf = 1;
+        val.delta_score = 0;
+        val.show = ptr_val->count_;
+        val.clk = 0;
+        val.slot = 0;
+        val.lr = 0;
+        val.lr_g2sum = 0;
+        val.cpu_ptr = (uint64_t)(task_ptrs[dev][j]);
+
+        if (has_mf) {
+          val.mf_size = MF_DIM + 1;
+          for (int x = 0; x < val.mf_size; x++) {
+            val.mf[x] = ptr_val->data_[x];
+          }
+        } else {
+          val.mf_size = 0;
+          for (int x = 0; x < MF_DIM + 1; x++) {
+            val.mf[x] = 0;
+          }
+        }
+      }
+#endif
+      VLOG(1) << "GpuPs build hbmps done";
 
       device_mutex[dev]->unlock();
     }

paddle/fluid/framework/fleet/ps_gpu_wrapper.cu

@@ -12,7 +12,7 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#ifdef PADDLE_WITH_PSLIB
+#ifdef PADDLE_WITH_HETERPS
 #include <algorithm>
 #include <ctime>
 #include <memory>

paddle/fluid/framework/fleet/ps_gpu_wrapper.h

@@ -14,8 +14,7 @@ limitations under the License. */
 
 #pragma once
 
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
 
 #include <atomic>
 #include <ctime>
@@ -26,7 +25,6 @@ limitations under the License. */
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
-
 #ifdef PADDLE_WITH_GLOO
 #include <gloo/broadcast.h>
 #include "paddle/fluid/framework/fleet/gloo_wrapper.h"
@@ -42,6 +40,9 @@ limitations under the License. */
 #include "paddle/fluid/platform/gpu_info.h"
 #include "paddle/fluid/platform/macros.h"  // for DISABLE_COPY_AND_ASSIGN
 #include "paddle/fluid/platform/place.h"
+#ifdef PADDLE_WITH_PSCORE
+#include "paddle/fluid/distributed/service/communicator.h"
+#endif
 
 namespace paddle {
 namespace framework {
@@ -219,7 +220,7 @@ class PSGPUWrapper {
   std::shared_ptr<HeterPsResource> resource_;
   int32_t sleep_seconds_before_fail_exit_;
   std::vector<int> slot_vector_;
-  int multi_node_{1};
+  int multi_node_{0};
   int node_size_;
   std::vector<ncclComm_t> inner_comms_;
   std::vector<ncclComm_t> inter_comms_;

paddle/fluid/framework/heter_service.h

@@ -30,10 +30,12 @@ limitations under the License. */
 #include "brpc/controller.h"
 #include "brpc/server.h"
 #include "paddle/fluid/platform/timer.h"
+#endif
 
 namespace paddle {
 namespace framework {
 
+#ifdef PADDLE_WITH_PSLIB
 typedef std::function<int(const HeterRequest*, HeterResponse*)>
     HeterServiceHandler;
 class DataFeed;
@@ -142,7 +144,7 @@ class HeterTask {
   double cpu_2_gpu_time{0};
   platform::Timer timeline;
 };
-
+#endif
 template <class T>
 class HeterObjectPool {
  public:
@@ -153,7 +155,7 @@ class HeterObjectPool {
     if (pool_.empty()) {
       num_ += 1;
 #if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
-      VLOG(0) << "pool construct size: " << num_;
+      VLOG(3) << "pool construct size: " << num_;
 #endif
       return std::make_shared<T>();
     } else {
@@ -178,6 +180,7 @@ class HeterObjectPool {
   int num_{0};
 };
 
+#ifdef PADDLE_WITH_PSLIB
 struct BthreadMutextGuard {
   BthreadMutextGuard(bthread_mutex_t* rho) {
     mutex_ = rho;
@@ -258,7 +261,6 @@ class HeterList {
     std::unique_lock<std::mutex> lock(mutex_);
     cond_.wait(lock, [this] { return size < cap_; });
     if (task_map_.find(key) != task_map_.end()) {
-      // std::cout << "try put key=" << key << " false" << std::endl;
       task_map_.erase(key);
       return false;
     } else {
@@ -267,7 +269,6 @@ class HeterList {
       node->value = value;
       map_[node->key] = node;
       attach(node);
-      // std::cout << "try put key=" << key << " true" << std::endl;
       return true;
     }
   }
@@ -276,7 +277,6 @@ class HeterList {
     std::unique_lock<std::mutex> lock(mutex_);
     cond_.wait(lock, [this] { return size < cap_; });
     HeterNode<K, T>* node = new HeterNode<K, T>;
-    // std::cout << "put key=" << key << " true" << std::endl;
     node->key = key;
     node->value = value;
     map_[node->key] = node;
@@ -288,7 +288,6 @@ class HeterList {
     std::lock_guard<std::mutex> lock(mutex_);
     auto iter = map_.find(key);
     if (iter != map_.end()) {
-      // std::cout << "try get key=" << key << " true" << std::endl;
       HeterNode<K, T>* node = iter->second;
       detach(node);
       cond_.notify_one();
@@ -298,7 +297,6 @@ class HeterList {
       return ret;
     }
     task_map_.insert(key);
-    // std::cout << "try get key=" << key << " false" << std::endl;
     return nullptr;
   }
 
@@ -306,7 +304,6 @@ class HeterList {
     std::lock_guard<std::mutex> lock(mutex_);
     auto iter = map_.find(key);
     if (iter != map_.end()) {
-      // std::cout << "get key=" << key << " true" << std::endl;
       HeterNode<K, T>* node = iter->second;
       detach(node);
       cond_.notify_one();
@@ -315,7 +312,6 @@ class HeterList {
       delete node;
       return ret;
     }
-    // std::cout << "get key=" << key << " false" << std::endl;
     return nullptr;
   }
 
@@ -323,14 +319,12 @@ class HeterList {
     std::lock_guard<std::mutex> lock(mutex_);
     HeterNode<K, T>* node = head_->next;
     if (node == tail_) {
-      // std::cout << "get2 false" << std::endl;
       return nullptr;
     } else {
       detach(node);
       cond_.notify_one();
       T ret = std::move(node->value);
       map_.erase(node->key);
-      // std::cout << "get2 key=" << node->key << " true" << std::endl;
       delete node;
       return ret;
     }
@@ -371,7 +365,7 @@ class HeterList {
   int cap_;
   int size;
 };
+#endif
 
 }  // namespace framework
 }  // namespace paddle
-#endif

paddle/fluid/framework/multi_trainer.cc

@@ -38,6 +38,13 @@ void MultiTrainer::Initialize(const TrainerDesc& trainer_desc,
     need_merge_var_names_.push_back(
         trainer_desc.downpour_param().stat_var_names(i));
   }
+#ifdef PADDLE_WITH_HETERPS
+  for (int i = 0; i < thread_num_; ++i) {
+    int num = trainer_desc.worker_places(i);
+    platform::CUDAPlace place = platform::CUDAPlace(num);
+    places_.push_back(place);
+  }
+#endif
   // get filelist from trainer_desc here
   const std::vector<paddle::framework::DataFeed*> readers =
       dataset->GetReaders();
@@ -102,13 +109,42 @@ void MultiTrainer::InitDumpEnv() {
 void MultiTrainer::InitTrainerEnv(const ProgramDesc& main_program,
                                   const platform::Place& place) {
   for (int i = 0; i < thread_num_; ++i) {
+#ifdef PADDLE_WITH_HETERPS
+    workers_[i]->SetPlace(places_[i]);
+    workers_[i]->SetReaderPlace(places_[i]);
+#else
     workers_[i]->SetPlace(place);
     workers_[i]->SetReaderPlace(place);
+#endif
     workers_[i]->SetRootScope(root_scope_);
     workers_[i]->CreateDeviceResource(main_program);  // Program
     workers_[i]->BindingDataFeedMemory();
     workers_[i]->CacheProgram(main_program);
   }
+#ifdef PADDLE_WITH_HETERPS
+  for (int num = 0; num < thread_num_; ++num) {
+    auto place = places_[num];
+    Scope* scope = workers_[num]->GetThreadScope();
+    auto& block = main_program.Block(0);
+    for (auto& var : block.AllVars()) {
+      if (var->Persistable()) {
+        auto name = var->Name();
+        Variable* root_var = root_scope_->FindVar(name);
+        if (!root_var) {
+          continue;
+        }
+        if (root_var->IsType<SelectedRows>()) {
+          continue;
+        }
+        LoDTensor* root_tensor = root_var->GetMutable<LoDTensor>();
+        auto* ptr = scope->Var(name);
+        InitializeVariable(ptr, proto::VarType::LOD_TENSOR);
+        LoDTensor* thread_tensor = ptr->GetMutable<LoDTensor>();
+        TensorCopy(*root_tensor, place, thread_tensor);
+      }
+    }
+  }
+#endif
 }
 
 void MultiTrainer::InitOtherEnv(const ProgramDesc& main_program) {
@@ -138,10 +174,77 @@ void MultiTrainer::Run() {
   }
 }
 
+#ifdef PADDLE_WITH_HETERPS
+void MultiTrainer::MergeDenseParam() {
+  auto communicator = paddle::distributed::Communicator::GetInstance();
+  auto& recv_ctx = communicator->GetRecvCtxMap();
+  Scope* thread_scope = workers_[0]->GetThreadScope();
+  for (auto& iter : recv_ctx) {
+    auto& varnames = iter.second;
+    for (auto& name : varnames) {
+      Variable* root_var = root_scope_->FindVar(name);
+      LoDTensor* root_tensor = root_var->GetMutable<LoDTensor>();
+      Variable* var = thread_scope->FindVar(name);
+      LoDTensor* tensor = var->GetMutable<LoDTensor>();
+      TensorCopy((*tensor), root_tensor->place(), root_tensor);
+    }
+  }
+}
+#endif
+
+template <typename T>
+void MultiTrainer::MergeToRootScope(LoDTensor* root_tensor, LoDTensor* tensor) {
+  LoDTensor tmp_root;
+  TensorCopy(*root_tensor, platform::CPUPlace(), &tmp_root);
+  T* tmp_root_data = tmp_root.data<T>();
+  LoDTensor tmp_tensor;
+  TensorCopy(*tensor, platform::CPUPlace(), &tmp_tensor);
+  T* data = tmp_tensor.data<T>();
+  for (int i = 0; i < tmp_tensor.numel(); i++) {
+    tmp_root_data[i] += data[i];
+  }
+  TensorCopy(tmp_root, platform::CPUPlace(), root_tensor);
+}
+
 void MultiTrainer::Finalize() {
   if (need_dump_field_ || need_dump_param_) {
     FinalizeDumpEnv();
   }
+#ifdef PADDLE_WITH_HETERPS
+  for (size_t i = 0; i < need_merge_var_names_.size(); i++) {
+    Variable* root_var = root_scope_->FindVar(need_merge_var_names_[i]);
+    if (root_var == nullptr) {
+      continue;
+    }
+    LoDTensor* root_tensor = root_var->GetMutable<LoDTensor>();
+
+    for (size_t j = 0; j < places_.size(); j++) {
+      Scope* cur_thread_scope = workers_[j]->GetThreadScope();
+      Variable* thread_var =
+          cur_thread_scope->FindVar(need_merge_var_names_[i]);
+      if (thread_var == nullptr) {
+        continue;
+      }
+      LoDTensor* thread_tensor = thread_var->GetMutable<LoDTensor>();
+#define MergeCallback(cpp_type, proto_type)                                    \
+  do {                                                                         \
+    if (root_tensor->type() == proto_type) {                                   \
+      if (thread_tensor->type() != proto_type) {                               \
+        VLOG(0) << "Error: thread id=" << j << ", need_merge_var_names_[" << i \
+                << "] " << need_merge_var_names_[i]                            \
+                << ", root tensor type=" << root_tensor->type()                \
+                << ", thread tensor type=" << thread_tensor->type();           \
+        exit(-1);                                                              \
+      }                                                                        \
+      MergeToRootScope<cpp_type>(root_tensor, thread_tensor);                  \
+    }                                                                          \
+  } while (0)
+      _ForEachDataType_(MergeCallback);
+    }
+  }
+  MergeDenseParam();
+
+#endif
   root_scope_->DropKids();
 }
 

paddle/fluid/framework/ps_gpu_trainer.cc

@@ -19,10 +19,6 @@ limitations under the License. */
 #include "paddle/fluid/framework/data_feed_factory.h"
 #include "paddle/fluid/framework/data_set.h"
 #include "paddle/fluid/framework/device_worker_factory.h"
-#include "paddle/fluid/framework/fleet/fleet_wrapper.h"
-#include "paddle/fluid/framework/fleet/heter_context.h"
-#include "paddle/fluid/framework/fleet/heter_ps/feature_value.h"
-#include "paddle/fluid/framework/fleet/ps_gpu_wrapper.h"
 #include "paddle/fluid/framework/trainer.h"
 #if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
     (defined PADDLE_WITH_PSLIB)
@@ -64,7 +60,6 @@ void PSGPUTrainer::Initialize(const TrainerDesc& trainer_desc,
   pull_dense_worker_ = PullDenseWorker::GetInstance();
   pull_dense_worker_->Initialize(trainer_desc);
   SetDebug(trainer_desc.debug());
-  fleet_ptr_ = FleetWrapper::GetInstance();
   trainer_desc_ = trainer_desc;
   workers_.resize(place_num);
   for (int i = 0; i < place_num; ++i) {

paddle/fluid/framework/ps_gpu_worker.cc

@@ -14,7 +14,6 @@ limitations under the License. */
 
 #include "paddle/fluid/framework/device_worker.h"
 #include "paddle/fluid/framework/device_worker_factory.h"
-#include "paddle/fluid/framework/fleet/fleet_wrapper.h"
 #include "paddle/fluid/framework/fleet/heter_wrapper.h"
 #include "paddle/fluid/platform/cpu_helper.h"
 #include "paddle/fluid/string/string_helper.h"

paddle/fluid/framework/trainer.h

@@ -109,13 +109,22 @@ class MultiTrainer : public TrainerBase {
   virtual Scope* GetWorkerScope(int thread_id);
   virtual std::string GetDumpPath(int tid);
 
+  template <typename T>
+  void MergeToRootScope(LoDTensor* root_tensor, LoDTensor* thread_tensor);
+#ifdef PADDLE_WITH_HETERPS
+
+  void MergeDenseParam();
+#endif
+
  protected:
   int thread_num_;
   std::vector<std::thread> threads_;
   std::vector<DataFeed*> readers_;
   std::vector<std::shared_ptr<DeviceWorker>> workers_;
   std::vector<std::string> need_merge_var_names_;
-
+#ifdef PADDLE_WITH_HETERPS
+  std::vector<platform::Place> places_;
+#endif
   int mpi_rank_;
   int mpi_size_;
   int dump_file_num_;
@@ -313,7 +322,6 @@ class PSGPUTrainer : public TrainerBase {
   float scale_datanorm_;
   paddle::platform::Place place_;
   ProgramDesc program_;
-  std::shared_ptr<paddle::framework::FleetWrapper> fleet_ptr_;
   std::shared_ptr<paddle::framework::PullDenseWorker> pull_dense_worker_;
   std::vector<std::shared_ptr<DeviceWorker>> workers_;
   std::vector<platform::Place> places_;

paddle/fluid/operators/pull_box_sparse_op.h

@@ -47,8 +47,7 @@ static void PullBoxSparseFunctor(const framework::ExecutionContext &ctx) {
   box_ptr->PullSparse(ctx.GetPlace(), all_keys, all_values, slot_lengths,
                       hidden_size, 0);
 #endif
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
   auto hidden_size = ctx.Attr<int>("size");
   auto gpu_ps_ptr = paddle::framework::PSGPUWrapper::GetInstance();
   gpu_ps_ptr->PullSparse(ctx.GetPlace(), 0, all_keys, all_values, slot_lengths,
@@ -91,8 +90,7 @@ static void PushBoxSparseFunctor(const framework::ExecutionContext &ctx) {
   box_ptr->PushSparseGrad(ctx.GetPlace(), all_keys, all_grad_values,
                           slot_lengths, hidden_size, 0, batch_size);
 #endif
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
   auto hidden_size = ctx.Attr<int>("size");
   auto gpu_ps_ptr = paddle::framework::PSGPUWrapper::GetInstance();
   gpu_ps_ptr->PushSparseGrad(ctx.GetPlace(), 0, all_keys, all_grad_values,

paddle/fluid/pybind/ps_gpu_wrapper_py.cc

@@ -32,8 +32,7 @@ namespace py = pybind11;
 
 namespace paddle {
 namespace pybind {
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
 void BindPSGPUWrapper(py::module* m) {
   py::class_<framework::PSGPUWrapper, std::shared_ptr<framework::PSGPUWrapper>>(
       *m, "PSGPU")

paddle/fluid/pybind/ps_gpu_wrapper_py.h

@@ -22,8 +22,7 @@ namespace py = pybind11;
 namespace paddle {
 namespace pybind {
 
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
 void BindPSGPUWrapper(py::module* m);
 #endif
 }  // namespace pybind

paddle/fluid/pybind/pybind.cc

@@ -3052,8 +3052,7 @@ All parameter, weight, gradient are variables in Paddle.
 #ifdef PADDLE_WITH_PSLIB
   BindHeterWrapper(&m);
 #endif
-#if (defined PADDLE_WITH_NCCL || defined PADDLE_WITH_RCCL) && \
-    (defined PADDLE_WITH_PSLIB)
+#ifdef PADDLE_WITH_HETERPS
   BindPSGPUWrapper(&m);
 #endif
   BindGlooWrapper(&m);

python/paddle/distributed/fleet/meta_optimizers/parameter_server_optimizer.py

@@ -38,6 +38,23 @@ class ParameterServerOptimizer(MetaOptimizerBase):
         k_steps = self.user_defined_strategy.a_sync_configs["k_steps"]
         return True if k_steps >= 0 else False
 
+    def get_dist_env(self):
+        trainer_id = int(os.getenv('PADDLE_TRAINER_ID', '0'))
+        trainer_endpoints = ''
+        current_endpoint = ''
+        num_trainers = 0
+        if os.getenv('PADDLE_TRAINER_ENDPOINTS'):
+            trainer_endpoints = os.getenv('PADDLE_TRAINER_ENDPOINTS')
+            current_endpoint = trainer_endpoints.split(',')[trainer_id]
+            num_trainers = len(trainer_endpoints.split(','))
+
+        return {
+            'trainer_id': trainer_id,
+            'num_trainers': num_trainers,
+            'current_endpoint': current_endpoint,
+            'trainer_endpoints': trainer_endpoints
+        }
+
     def _get_distributed_strategy(self):
         from paddle.fluid.incubate.fleet.parameter_server.distribute_transpiler.distributed_strategy import StrategyFactory
 
@@ -64,6 +81,8 @@ class ParameterServerOptimizer(MetaOptimizerBase):
         _main = compiled_config.origin_main_program.clone()
         _startup = compiled_config.origin_startup_program.clone()
 
+        use_ps_gpu = self.user_defined_strategy.a_sync_configs["use_ps_gpu"]
+
         if not compiled_config.is_geo_mode():
             from paddle.fluid.incubate.fleet.parameter_server.ir.public import _add_lr_decay_table_pass
             _add_lr_decay_table_pass(
@@ -71,14 +90,28 @@ class ParameterServerOptimizer(MetaOptimizerBase):
                 self.user_defined_strategy.a_sync_configs["lr_decay_steps"])
 
             # for main program
+            _main = worker.distributed_ops_pass(_main, compiled_config,
+                                                use_ps_gpu)
+            if not use_ps_gpu:
                 _main = worker.delete_optimizer_pass(_main, compiled_config)
-            _main = worker.distributed_ops_pass(_main, compiled_config)
                 _main = worker.append_send_ops_pass(_main, compiled_config)
+                _startup = worker.delet_extra_optimizes_pass(_startup,
+                                                             compiled_config)
 
                 # for startup program
             _startup = worker.fake_init_ops_pass(_startup, compiled_config)
-            _startup = worker.delet_extra_optimizes_pass(_startup,
-                                                         compiled_config)
+            if use_ps_gpu:
+                _main = worker.ps_gpu_pass(_main)
+                from paddle.fluid.transpiler.collective import SingleProcessMultiThread
+                t = SingleProcessMultiThread()
+                env = self.get_dist_env()
+                t.transpile(
+                    startup_program=_startup,
+                    main_program=_main,
+                    rank=env["trainer_id"],
+                    endpoints=env["trainer_endpoints"],
+                    current_endpoint=env['current_endpoint'],
+                    wait_port=False)
 
             compiled_config.set_origin_ps_main_program(_main)
             compiled_config.set_origin_ps_startup_program(_startup)

python/paddle/distributed/fleet/runtime/the_one_ps.py

@@ -453,6 +453,17 @@ class TheOnePSRuntime(RuntimeBase):
         worker = self._get_fleet_proto(is_server=False, is_sync=is_sync)
         server = self._get_fleet_proto(is_server=True, is_sync=is_sync)
 
+        dist_strategy = self.context["valid_strategy"]
+        use_ps_gpu = dist_strategy.a_sync_configs["use_ps_gpu"]
+        if use_ps_gpu:
+            main_program = self.context['loss'].block.program
+            if not main_program._fleet_opt:
+                main_program._fleet_opt = {}
+            main_program._fleet_opt["use_ps_gpu"] = True
+            gpus_env = os.getenv("FLAGS_selected_gpus")
+            main_program._fleet_opt[
+                "worker_places"] = [int(s) for s in gpus_env.split(",")]
+
         def sync_strategy_envs():
             kwargs = {}
             kwargs[
@@ -741,6 +752,11 @@ class TheOnePSRuntime(RuntimeBase):
             downpour_server = DownpourServer()
 
             service = Service()
+            dist_strategy = self.context["valid_strategy"]
+            use_ps_gpu = dist_strategy.a_sync_configs["use_ps_gpu"]
+            if use_ps_gpu:
+                service.server_class = "PsLocalServer"
+                service.client_class = "PsLocalClient"
             downpour_server.set_service_param(service)
 
             tables = _get_tables()

python/paddle/fluid/device_worker.py

@@ -102,6 +102,12 @@ class Hogwild(DeviceWorker):
         # when opt_info is None or empty dict, it should return
         if not opt_info:
             return
+        downpour = trainer_desc.downpour_param
+        hogwild = trainer_desc.hogwild_param
+        if opt_info["stat_var_names"]:
+            for i in opt_info["stat_var_names"]:
+                hogwild.stat_var_names.extend([i])
+                downpour.stat_var_names.extend([i])
 
         from paddle.fluid.incubate.fleet.parameter_server import version
 
@@ -109,8 +115,6 @@ class Hogwild(DeviceWorker):
             return
 
         program_configs = opt_info["program_configs"]
-        downpour = trainer_desc.downpour_param
-        hogwild = trainer_desc.hogwild_param
 
         for pid in program_configs:
             if pid == program_id:
@@ -161,10 +165,6 @@ class Hogwild(DeviceWorker):
             sparse_table.emb_dim = -1
             # not use hard code click
             sparse_table.label_var_name = ""
-        if opt_info["stat_var_names"]:
-            for i in opt_info["stat_var_names"]:
-                hogwild.stat_var_names.extend([i])
-                downpour.stat_var_names.extend([i])
 
         for i in worker.get_desc().dense_table:
             if i.table_id in dense_table_set:

python/paddle/fluid/executor.py

@@ -1373,11 +1373,14 @@ class Executor(object):
                          fetch_info=None,
                          print_period=100):
         is_heter = 0
+        use_ps_gpu = 0
         if not program._fleet_opt is None:
             if program._fleet_opt.get("worker_class", "") == "HeterCpuWorker":
                 is_heter = 1
             if program._fleet_opt.get("trainer", "") == "HeterXpuTrainer":
                 is_heter = 1
+            if program._fleet_opt.get("use_ps_gpu", False):
+                use_ps_gpu = True
         if scope is None:
             scope = global_scope()
         if fetch_list is None:
@@ -1412,7 +1415,9 @@ class Executor(object):
             trainer._set_program(program.program)
 
         if thread <= 0:
-            if dataset.thread_num <= 0:
+            if use_ps_gpu:
+                trainer._set_thread(len(program._fleet_opt["worker_places"]))
+            elif dataset.thread_num <= 0:
                 raise RuntimeError(
                     "You should set thread num first, either in Dataset"
                     "or in Executor.train_from_dataset")

python/paddle/fluid/incubate/fleet/parameter_server/ir/trainer_pass.py

@@ -24,6 +24,7 @@ from functools import reduce
 import paddle.fluid as fluid
 import paddle.fluid.core as core
 import paddle.fluid.framework as framework
+import paddle.compat as cpt
 
 from paddle.fluid.transpiler.details.program_utils import delete_ops
 from paddle.fluid.incubate.fleet.parameter_server.ir.public import _get_optimize_ops
@@ -93,7 +94,7 @@ def delete_optimizer_pass(program, config):
     return program
 
 
-def distributed_ops_pass(program, config):
+def distributed_ops_pass(program, config, use_ps_gpu=False):
     trainer_id = config.get_role_id()
     send_ctx = config.get_the_one_send_context(
         split_dense_table=config.is_heter_ps_mode)
@@ -109,7 +110,7 @@ def distributed_ops_pass(program, config):
                 pull_sparse_ops[param_name] = ops
         return pull_sparse_ops
 
-    def _pull_sparse_fuse(_program, pull_sparse_ops):
+    def _pull_sparse_fuse(_program, pull_sparse_ops, use_ps_gpu):
         for param, ops in pull_sparse_ops.items():
             all_ops = program.global_block().ops
             op_idxs = [all_ops.index(op) for op in ops]
@@ -159,6 +160,19 @@ def distributed_ops_pass(program, config):
             if min(outputs_idxs) - max(inputs_idxs) >= 1:
                 distributed_idx = max(inputs_idxs) + 1
 
+                if use_ps_gpu:
+                    program.global_block()._insert_op(
+                        index=distributed_idx,
+                        type="pull_box_sparse",
+                        inputs={"Ids": inputs,
+                                'W': w},
+                        outputs={"Out": outputs},
+                        attrs={
+                            "size": w.shape[1],
+                            "is_distributed": True,
+                            "is_sparse": True
+                        })
+                else:
                     program.global_block()._insert_op(
                         index=distributed_idx,
                         type="distributed_lookup_table",
@@ -189,7 +203,7 @@ def distributed_ops_pass(program, config):
                         })
 
     pull_sparse_ops = _get_pull_sparse_ops(program)
-    _pull_sparse_fuse(program, pull_sparse_ops)
+    _pull_sparse_fuse(program, pull_sparse_ops, use_ps_gpu)
     return program
 
 
@@ -308,6 +322,54 @@ def fake_init_ops_pass(program, config):
     return program
 
 
+def ps_gpu_pass(program):
+    def _add_push_box_sparse_op(program):
+        op_role_attr_name = core.op_proto_and_checker_maker.kOpRoleAttrName()
+        backward = core.op_proto_and_checker_maker.OpRole.Backward
+        for op in program.global_block().ops:
+            if op.type != "pull_box_sparse":
+                continue
+            grad_op_desc, op_grad_to_var = core.get_grad_op_desc(
+                op.desc, cpt.to_text(set()), [])
+            for op_desc in grad_op_desc:
+                new_op_desc = program.global_block().desc.append_op()
+                new_op_desc.copy_from(op_desc)
+                new_op_desc._set_attr(op_role_attr_name, backward)
+
+    def _remove_lookup_table_grad_op_and_var(program):
+        lookup_table_grad_var = {}
+        remove_op_index = []
+        remove_var = []
+        for idx, op in list(enumerate(program.global_block().ops)):
+            if op.type == "lookup_table_grad":
+                for name in op.output("W@GRAD"):
+                    lookup_table_grad_var[name] = 1
+                    remove_op_index.append(idx)
+                    remove_var.append(name)
+                for name in op.input("W"):
+                    lookup_table_grad_var[name] = 1
+
+        for idx, op in list(enumerate(program.global_block().ops)):
+            if op.type == "pull_box_sparse":
+                continue
+            for key_name in op.input_names:
+                for var in op.input(key_name):
+                    if var in lookup_table_grad_var:
+                        remove_op_index.append(idx)
+                        break
+
+        remove_op_index = list(set(remove_op_index))
+        remove_op_index.sort(reverse=True)
+        for idx in remove_op_index:
+            program.global_block()._remove_op(idx)
+        for name in remove_var:
+            program.global_block()._remove_var(name)
+
+    _add_push_box_sparse_op(program)
+    _remove_lookup_table_grad_op_and_var(program)
+    return program
+
+
 def delet_extra_optimizes_pass(program, config):
     optimize_vars = []
     optimize_op_role_vars = []

python/paddle/fluid/tests/unittests/CMakeLists.txt

@@ -30,6 +30,7 @@ list(APPEND MIXED_DIST_TEST_OPS test_simple_dist_transpiler)
 list(APPEND MIXED_DIST_TEST_OPS test_recv_save_op)
 list(APPEND MIXED_DIST_TEST_OPS test_c_comm_init_op)
 list(APPEND MIXED_DIST_TEST_OPS test_communicator_async)
+list(APPEND MIXED_DIST_TEST_OPS test_communicator_ps_gpu)
 list(APPEND MIXED_DIST_TEST_OPS test_communicator_geo)
 list(APPEND MIXED_DIST_TEST_OPS test_communicator_half_async)
 list(APPEND MIXED_DIST_TEST_OPS test_communicator_sync)
@@ -483,6 +484,7 @@ if(WITH_DISTRIBUTE)
 
     py_test_modules(test_recv_save_op MODULES test_recv_save_op ENVS ${dist_ENVS})
     py_test_modules(test_communicator_async MODULES test_communicator_async ENVS ${dist_ENVS})
+    py_test_modules(test_communicator_ps_gpu MODULES test_communicator_ps_gpu ENVS ${dist_ENVS})
     py_test_modules(test_communicator_geo MODULES test_communicator_geo ENVS ${dist_ENVS})
     py_test_modules(test_communicator_half_async MODULES test_communicator_half_async ENVS ${dist_ENVS} FLAGS_communicator_send_queue_size=1 FLAGS_communicator_max_merge_var_num=1)
     py_test_modules(test_communicator_sync MODULES test_communicator_sync ENVS ${dist_ENVS} FLAGS_communicator_send_queue_size=1 FLAGS_communicator_max_merge_var_num=1)

python/paddle/fluid/tests/unittests/test_communicator_ps_gpu.py

+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import os
+import unittest
+import time
+import threading
+import numpy
+
+import paddle
+paddle.enable_static()
+
+import paddle.fluid as fluid
+import paddle.distributed.fleet.base.role_maker as role_maker
+import paddle.distributed.fleet as fleet
+
+
+class TestCommunicator(unittest.TestCase):
+    def test_communicator_ps_gpu(self):
+        with open("test_communicator_ps_gpu.txt", "w") as f:
+            data = "1 0.6 1 0.7\n"
+            f.write(data)
+
+        os.environ["PADDLE_PSERVER_NUMS"] = "2"
+        os.environ["PADDLE_TRAINERS_NUM"] = "2"
+        os.environ["POD_IP"] = "127.0.0.1"
+        os.environ["PADDLE_PORT"] = "36001"
+        os.environ["PADDLE_TRAINER_ID"] = "0"
+        os.environ["PADDLE_TRAINERS_NUM"] = "2"
+        os.environ[
+            "PADDLE_TRAINER_ENDPOINTS"] = "127.0.0.1:36001,127.0.0.2:36001"
+        os.environ[
+            "PADDLE_PSERVERS_IP_PORT_LIST"] = "127.0.0.1:36002,127.0.0.2:36002"
+        os.environ["TRAINING_ROLE"] = "TRAINER"
+        os.environ["FLAGS_selected_gpus"] = "0"
+        role = role_maker.PaddleCloudRoleMaker()
+
+        fleet.init(role)
+        x = fluid.layers.data(name='x', shape=[1], dtype='float32')
+        y = fluid.layers.data(name='y', shape=[1], dtype='float32')
+        slots_vars = [x, y]
+
+        cost = fluid.layers.square_error_cost(input=x, label=y)
+        avg_cost = fluid.layers.mean(cost)
+
+        optimizer = fluid.optimizer.Adam(0.01)
+
+        strategy = paddle.distributed.fleet.DistributedStrategy()
+        strategy.a_sync = True
+        strategy.a_sync_configs = {
+            "launch_barrier": False,
+            "use_ps_gpu": 1,
+        }
+        startup_program = paddle.static.Program()
+        main_program = paddle.static.Program()
+        optimizer = fleet.distributed_optimizer(optimizer, strategy)
+        optimizer.minimize(avg_cost)
+
+        dataset = paddle.distributed.InMemoryDataset()
+        dataset.init(
+            batch_size=32, thread_num=1, pipe_command="cat", use_var=slots_vars)
+        dataset.set_filelist(["test_communicator_ps_gpu.txt"])
+        dataset.load_into_memory()
+
+        os.environ["TEST_MODE"] = "1"
+        exe = fluid.Executor(fluid.CPUPlace())
+        exe.run(startup_program)
+        main_program._fleet_opt = {"stat_var_names": [x.name]}
+        fleet.init_worker()
+
+        try:
+            exe.train_from_dataset(main_program, dataset)
+        except ImportError as e:
+            pass
+        except Exception as e:
+            self.assertTrue(False)
+
+        time.sleep(10)
+        fleet.stop_worker()
+        os.remove("./test_communicator_ps_gpu.txt")
+
+
+if __name__ == '__main__':
+    unittest.main()

python/paddle/fluid/tests/unittests/test_dist_fleet_ps11.py

+#   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import os
+import unittest
+import tempfile
+import shutil
+
+import paddle
+import paddle.fluid as fluid
+import paddle.distributed.fleet.base.role_maker as role_maker
+import paddle.distributed.fleet as fleet
+
+paddle.enable_static()
+
+# For Net
+base_lr = 0.2
+emb_lr = base_lr * 3
+dict_dim = 1500
+emb_dim = 128
+hid_dim = 128
+margin = 0.1
+sample_rate = 1
+batch_size = 4
+
+
+class TestPSPassWithBow(unittest.TestCase):
+    def net(self):
+        def get_acc(cos_q_nt, cos_q_pt, batch_size):
+            cond = fluid.layers.less_than(cos_q_nt, cos_q_pt)
+            cond = fluid.layers.cast(cond, dtype='float64')
+            cond_3 = fluid.layers.reduce_sum(cond)
+            acc = fluid.layers.elementwise_div(
+                cond_3,
+                fluid.layers.fill_constant(
+                    shape=[1], value=batch_size * 1.0, dtype='float64'),
+                name="simnet_acc")
+            return acc
+
+        def get_loss(cos_q_pt, cos_q_nt):
+            loss_op1 = fluid.layers.elementwise_sub(
+                fluid.layers.fill_constant_batch_size_like(
+                    input=cos_q_pt,
+                    shape=[-1, 1],
+                    value=margin,
+                    dtype='float32'),
+                cos_q_pt)
+            loss_op2 = fluid.layers.elementwise_add(loss_op1, cos_q_nt)
+            loss_op3 = fluid.layers.elementwise_max(
+                fluid.layers.fill_constant_batch_size_like(
+                    input=loss_op2, shape=[-1, 1], value=0.0, dtype='float32'),
+                loss_op2)
+            avg_cost = fluid.layers.mean(loss_op3)
+            return avg_cost
+
+        is_distributed = False
+        is_sparse = True
+
+        # query
+        q = fluid.layers.data(
+            name="query_ids", shape=[1], dtype="int64", lod_level=1)
+        # embedding
+        q_emb = fluid.contrib.layers.sparse_embedding(
+            input=q,
+            size=[dict_dim, emb_dim],
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__emb__",
+                learning_rate=emb_lr))
+        q_emb = fluid.layers.reshape(q_emb, [-1, emb_dim])
+        # vsum
+        q_sum = fluid.layers.sequence_pool(input=q_emb, pool_type='sum')
+        q_ss = fluid.layers.softsign(q_sum)
+        # fc layer after conv
+        q_fc = fluid.layers.fc(
+            input=q_ss,
+            size=hid_dim,
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__q_fc__",
+                learning_rate=base_lr))
+        # label data
+        label = fluid.layers.data(name="label", shape=[1], dtype="int64")
+        # pt
+        pt = fluid.layers.data(
+            name="pos_title_ids", shape=[1], dtype="int64", lod_level=1)
+        # embedding
+        pt_emb = fluid.contrib.layers.sparse_embedding(
+            input=pt,
+            size=[dict_dim, emb_dim],
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__emb__",
+                learning_rate=emb_lr))
+        pt_emb = fluid.layers.reshape(pt_emb, [-1, emb_dim])
+        # vsum
+        pt_sum = fluid.layers.sequence_pool(input=pt_emb, pool_type='sum')
+        pt_ss = fluid.layers.softsign(pt_sum)
+        # fc layer
+        pt_fc = fluid.layers.fc(
+            input=pt_ss,
+            size=hid_dim,
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__fc__",
+                learning_rate=base_lr),
+            bias_attr=fluid.ParamAttr(name="__fc_b__"))
+        # nt
+        nt = fluid.layers.data(
+            name="neg_title_ids", shape=[1], dtype="int64", lod_level=1)
+        # embedding
+        nt_emb = fluid.contrib.layers.sparse_embedding(
+            input=nt,
+            size=[dict_dim, emb_dim],
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__emb__",
+                learning_rate=emb_lr))
+        nt_emb = fluid.layers.reshape(nt_emb, [-1, emb_dim])
+        # vsum
+        nt_sum = fluid.layers.sequence_pool(input=nt_emb, pool_type='sum')
+        nt_ss = fluid.layers.softsign(nt_sum)
+        # fc layer
+        nt_fc = fluid.layers.fc(
+            input=nt_ss,
+            size=hid_dim,
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__fc__",
+                learning_rate=base_lr),
+            bias_attr=fluid.ParamAttr(name="__fc_b__"))
+        cos_q_pt = fluid.layers.cos_sim(q_fc, pt_fc)
+        cos_q_nt = fluid.layers.cos_sim(q_fc, nt_fc)
+        # loss
+        avg_cost = get_loss(cos_q_pt, cos_q_nt)
+        # acc
+        acc = get_acc(cos_q_nt, cos_q_pt, batch_size)
+        return [avg_cost, acc, cos_q_pt]
+
+    def test(self):
+        os.environ["PADDLE_PSERVER_NUMS"] = "2"
+        os.environ["PADDLE_TRAINERS_NUM"] = "2"
+        os.environ["POD_IP"] = "127.0.0.1"
+        os.environ["PADDLE_PORT"] = "36001"
+        os.environ["PADDLE_TRAINER_ID"] = "0"
+        os.environ["PADDLE_TRAINERS_NUM"] = "2"
+        os.environ[
+            "PADDLE_TRAINER_ENDPOINTS"] = "127.0.0.1:36001,127.0.0.2:36001"
+        os.environ[
+            "PADDLE_PSERVERS_IP_PORT_LIST"] = "127.0.0.1:36002,127.0.0.2:36002"
+        os.environ["TRAINING_ROLE"] = "TRAINER"
+        os.environ["FLAGS_selected_gpus"] = "0"
+        role = role_maker.PaddleCloudRoleMaker()
+        fleet.init(role)
+        loss, acc, _ = self.net()
+
+        strategy = paddle.distributed.fleet.DistributedStrategy()
+        configs = {"use_ps_gpu": 1, "launch_barrier": False}
+        strategy.a_sync_configs = configs
+        strategy.a_sync = True
+        optimizer = paddle.fluid.optimizer.Adam(learning_rate=0.01)
+        optimizer = fleet.distributed_optimizer(optimizer, strategy=strategy)
+        optimizer.minimize(loss)
+
+
+if __name__ == '__main__':
+    unittest.main()

python/paddle/fluid/tests/unittests/test_dist_fleet_ps12.py

+#   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import print_function
+
+import os
+import unittest
+import tempfile
+import shutil
+
+import paddle
+import paddle.fluid as fluid
+import paddle.distributed.fleet.base.role_maker as role_maker
+import paddle.distributed.fleet as fleet
+
+paddle.enable_static()
+
+# For Net
+base_lr = 0.2
+emb_lr = base_lr * 3
+dict_dim = 1500
+emb_dim = 128
+hid_dim = 128
+margin = 0.1
+sample_rate = 1
+batch_size = 4
+
+
+class TestPSPassWithBow(unittest.TestCase):
+    def net(self):
+        def get_acc(cos_q_nt, cos_q_pt, batch_size):
+            cond = fluid.layers.less_than(cos_q_nt, cos_q_pt)
+            cond = fluid.layers.cast(cond, dtype='float64')
+            cond_3 = fluid.layers.reduce_sum(cond)
+            acc = fluid.layers.elementwise_div(
+                cond_3,
+                fluid.layers.fill_constant(
+                    shape=[1], value=batch_size * 1.0, dtype='float64'),
+                name="simnet_acc")
+            return acc
+
+        def get_loss(cos_q_pt, cos_q_nt):
+            loss_op1 = fluid.layers.elementwise_sub(
+                fluid.layers.fill_constant_batch_size_like(
+                    input=cos_q_pt,
+                    shape=[-1, 1],
+                    value=margin,
+                    dtype='float32'),
+                cos_q_pt)
+            loss_op2 = fluid.layers.elementwise_add(loss_op1, cos_q_nt)
+            loss_op3 = fluid.layers.elementwise_max(
+                fluid.layers.fill_constant_batch_size_like(
+                    input=loss_op2, shape=[-1, 1], value=0.0, dtype='float32'),
+                loss_op2)
+            avg_cost = fluid.layers.mean(loss_op3)
+            return avg_cost
+
+        is_distributed = False
+        is_sparse = True
+
+        # query
+        q = fluid.layers.data(
+            name="query_ids", shape=[1], dtype="int64", lod_level=1)
+        # embedding
+        q_emb = fluid.contrib.layers.sparse_embedding(
+            input=q,
+            size=[dict_dim, emb_dim],
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__emb__",
+                learning_rate=emb_lr))
+        q_emb = fluid.layers.reshape(q_emb, [-1, emb_dim])
+        # vsum
+        q_sum = fluid.layers.sequence_pool(input=q_emb, pool_type='sum')
+        q_ss = fluid.layers.softsign(q_sum)
+        # fc layer after conv
+        q_fc = fluid.layers.fc(
+            input=q_ss,
+            size=hid_dim,
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__q_fc__",
+                learning_rate=base_lr))
+        # label data
+        label = fluid.layers.data(name="label", shape=[1], dtype="int64")
+        # pt
+        pt = fluid.layers.data(
+            name="pos_title_ids", shape=[1], dtype="int64", lod_level=1)
+        # embedding
+        pt_emb = fluid.contrib.layers.sparse_embedding(
+            input=pt,
+            size=[dict_dim, emb_dim],
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__emb__",
+                learning_rate=emb_lr))
+        pt_emb = fluid.layers.reshape(pt_emb, [-1, emb_dim])
+        # vsum
+        pt_sum = fluid.layers.sequence_pool(input=pt_emb, pool_type='sum')
+        pt_ss = fluid.layers.softsign(pt_sum)
+        # fc layer
+        pt_fc = fluid.layers.fc(
+            input=pt_ss,
+            size=hid_dim,
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__fc__",
+                learning_rate=base_lr),
+            bias_attr=fluid.ParamAttr(name="__fc_b__"))
+        # nt
+        nt = fluid.layers.data(
+            name="neg_title_ids", shape=[1], dtype="int64", lod_level=1)
+        # embedding
+        nt_emb = fluid.contrib.layers.sparse_embedding(
+            input=nt,
+            size=[dict_dim, emb_dim],
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__emb__",
+                learning_rate=emb_lr))
+        nt_emb = fluid.layers.reshape(nt_emb, [-1, emb_dim])
+        # vsum
+        nt_sum = fluid.layers.sequence_pool(input=nt_emb, pool_type='sum')
+        nt_ss = fluid.layers.softsign(nt_sum)
+        # fc layer
+        nt_fc = fluid.layers.fc(
+            input=nt_ss,
+            size=hid_dim,
+            param_attr=fluid.ParamAttr(
+                initializer=fluid.initializer.Constant(value=0.01),
+                name="__fc__",
+                learning_rate=base_lr),
+            bias_attr=fluid.ParamAttr(name="__fc_b__"))
+        cos_q_pt = fluid.layers.cos_sim(q_fc, pt_fc)
+        cos_q_nt = fluid.layers.cos_sim(q_fc, nt_fc)
+        # loss
+        avg_cost = get_loss(cos_q_pt, cos_q_nt)
+        # acc
+        acc = get_acc(cos_q_nt, cos_q_pt, batch_size)
+        return [avg_cost, acc, cos_q_pt]
+
+    def test(self):
+        os.environ["PADDLE_PSERVER_NUMS"] = "2"
+        os.environ["PADDLE_TRAINERS_NUM"] = "2"
+        os.environ["POD_IP"] = "127.0.0.1"
+        os.environ["PADDLE_PORT"] = "36001"
+        os.environ["PADDLE_TRAINER_ID"] = "0"
+        os.environ["PADDLE_TRAINERS_NUM"] = "2"
+        os.environ[
+            "PADDLE_PSERVERS_IP_PORT_LIST"] = "127.0.0.1:36001,127.0.0.2:36001"
+        os.environ["TRAINING_ROLE"] = "PSERVER"
+
+        role = role_maker.PaddleCloudRoleMaker()
+        fleet.init(role)
+        loss, acc, _ = self.net()
+
+        strategy = paddle.distributed.fleet.DistributedStrategy()
+        configs = {"use_ps_gpu": 1}
+        strategy.a_sync_configs = configs
+        strategy.a_sync = True
+        optimizer = paddle.fluid.optimizer.Adam(learning_rate=0.01)
+        optimizer = fleet.distributed_optimizer(optimizer, strategy=strategy)
+        optimizer.minimize(loss)
+
+        fleet.init_server()
+
+
+if __name__ == '__main__':
+    unittest.main()

python/paddle/fluid/trainer_factory.py

@@ -49,8 +49,8 @@ class TrainerFactory(object):
             device_worker = Hogwild()
             trainer._set_device_worker(device_worker)
         else:
-            trainer_class = opt_info["trainer"]
-            device_worker_class = opt_info["device_worker"]
+            trainer_class = opt_info.get("trainer", "MultiTrainer")
+            device_worker_class = opt_info.get("device_worker", "Hogwild")
             trainer = globals()[trainer_class]()
             device_worker = globals()[device_worker_class]()