graph engine (#31226)

* graph engine demo

* upload unsaved changes

* fix dependency error

* fix shard_num problem

* py client

* remove lock and graph-type

* add load direct graph

* add load direct graph

* add load direct graph

* batch random_sample

* batch_sample_k

* fix num_nodes size

* batch brpc

* batch brpc

* add test

* add test

* add load_nodes; change add_node function

* change sample return type to pair

* resolve conflict

* resolved conflict

* resolved conflict

* separate server and client

* merge pair type

* fix

* resolved conflict

* fixed segment fault; high-level VLOG for load edges and load nodes

* random_sample return 0

* rm useless loop

* test:load edge

* fix ret -1

* test: rm sample

* rm sample

* random_sample return future

* random_sample return int

* test fake node

* fixed here

* memory leak

* remove test code

* fix return problem

* add common_graph_table

* random sample node &test & change data-structure from linkedList to vector

* add common_graph_table

* sample with srand

* add node_types

* optimize nodes sample

* recover test

* random sample

* destruct weighted sampler

* GraphEdgeBlob

* WeightedGraphEdgeBlob to GraphEdgeBlob

* WeightedGraphEdgeBlob to GraphEdgeBlob

* pybind sample nodes api

* pull nodes with step

* fixed pull_graph_list bug; add test for pull_graph_list by step

* add graph table;name

* add graph table;name

* add pybind

* add pybind

* add FeatureNode

* add FeatureNode

* add FeatureNode Serialize

* add FeatureNode Serialize

* get_feat_node

* avoid local rpc

* fix get_node_feat

* fix get_node_feat

* remove log

* get_node_feat return  py:bytes

* merge develop with graph_engine

* fix threadpool.h head

* fix

* fix typo

* resolve conflict

* fix conflict

* recover lost content

* fix pybind of FeatureNode

* recover cmake

* recover tools

* resolve conflict

* resolve linking problem

* code style

* change test_server port

* fix code problems

* remove shard_num config

* remove redundent threads

* optimize start server

* remove logs

* fix code problems by reviewers' suggestions
Co-authored-by: NHuang Zhengjie <270018958@qq.com>
Co-authored-by: NWeiyue Su <weiyue.su@gmail.com>
Co-authored-by: Nsuweiyue <suweiyue@baidu.com>
Co-authored-by: Nluobin06 <luobin06@baidu.com>
Co-authored-by: Nliweibin02 <liweibin02@baidu.com>

.github/ISSUE_TEMPLATE/---document-issue-.md

@@ -56,4 +56,4 @@ For example: no sample code; The sample code is not helpful; The sample code not
 For example:Chinese API in this doc is inconsistent with English API, including params, description, sample code, formula, etc.
 
 #### Other
-For example: The doc link is broken; The doc page is missing; Dead link in docs.
\ No newline at end of file
+For example: The doc link is broken; The doc page is missing; Dead link in docs.

paddle/fluid/distributed/service/CMakeLists.txt

@@ -24,11 +24,12 @@ set_source_files_properties(heter_client.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUT
 set_source_files_properties(client.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(ps_client.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(server.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
-
+set_source_files_properties(graph_brpc_server.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+set_source_files_properties(graph_brpc_client.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 cc_library(brpc_utils SRCS brpc_utils.cc DEPS tensor device_context ${COMMON_DEPS} ${RPC_DEPS})
 
-cc_library(downpour_server SRCS brpc_ps_server.cc DEPS boost eigen3 table brpc_utils ${RPC_DEPS})
-cc_library(downpour_client SRCS brpc_ps_client.cc DEPS boost eigen3 table brpc_utils ${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(client SRCS ps_client.cc DEPS downpour_client boost ${RPC_DEPS})
 cc_library(server SRCS server.cc DEPS downpour_server boost ${RPC_DEPS})
@@ -38,3 +39,6 @@ cc_library(ps_service SRCS service.cc DEPS communicator client server boost ${RP
 
 cc_library(heter_server SRCS heter_server.cc DEPS brpc_utils ${COMMON_DEPS} ${RPC_DEPS})
 cc_library(heter_client SRCS heter_client.cc DEPS brpc_utils ${COMMON_DEPS} ${RPC_DEPS})
+
+set_source_files_properties(graph_py_service.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+cc_library(graph_py_service SRCS graph_py_service.cc DEPS ps_service)

paddle/fluid/distributed/service/brpc_ps_client.cc

@@ -990,4 +990,4 @@ int32_t BrpcPsClient::recv_and_save_table(const uint64_t table_id,
 }
 
 }  // namespace distributed
-}  // namespace paddle
+}  // namespace paddle
\ No newline at end of file

paddle/fluid/distributed/service/brpc_ps_client.h

@@ -170,9 +170,22 @@ class BrpcPsClient : public PSClient {
   virtual int32_t recv_and_save_table(const uint64_t table_id,
                                       const std::string &path);
 
- private:
+ protected:
+  virtual size_t get_server_nums() { return _server_channels.size(); }
+  inline brpc::Channel *get_sparse_channel(size_t server_id) {
+    return _server_channels[server_id][0].get();
+  }
+  inline brpc::Channel *get_dense_channel(size_t server_id) {
+    return _server_channels[server_id][1].get();
+  }
+  inline brpc::Channel *get_cmd_channel(size_t server_id) {
+    return _server_channels[server_id][2].get();
+  }
   virtual int32_t initialize() override;
 
+ private:
+  // virtual int32_t initialize() override;
+
   inline uint32_t dense_dim_per_shard(uint32_t dense_dim_total,
                                       uint32_t shard_num) {
     return dense_dim_total / shard_num + 1;
@@ -184,16 +197,6 @@ class BrpcPsClient : public PSClient {
   std::future<int32_t> send_save_cmd(uint32_t table_id, int cmd_id,
                                      const std::vector<std::string> &param);
 
-  inline brpc::Channel *get_sparse_channel(size_t server_id) {
-    return _server_channels[server_id][0].get();
-  }
-  inline brpc::Channel *get_dense_channel(size_t server_id) {
-    return _server_channels[server_id][1].get();
-  }
-  inline brpc::Channel *get_cmd_channel(size_t server_id) {
-    return _server_channels[server_id][2].get();
-  }
-
   bool _running = false;
   bool _flushing = false;
   std::atomic<uint32_t> _async_call_num;  //异步请求计数
@@ -220,8 +223,6 @@ class BrpcPsClient : public PSClient {
                                                  size_t num,
                                                  void *done) override;
 
-  virtual size_t get_server_nums() { return _server_channels.size(); }
-
  private:
   int32_t start_client_service();
 

paddle/fluid/distributed/service/graph_brpc_client.cc

+// 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.
+
+#include "paddle/fluid/distributed/service/graph_brpc_client.h"
+#include <algorithm>
+#include <memory>
+#include <sstream>
+#include <string>
+#include <utility>
+#include <vector>
+#include "Eigen/Dense"
+#include "paddle/fluid/distributed/service/brpc_ps_client.h"
+#include "paddle/fluid/distributed/table/table.h"
+#include "paddle/fluid/framework/archive.h"
+#include "paddle/fluid/string/string_helper.h"
+namespace paddle {
+namespace distributed {
+
+void GraphPsService_Stub::service(
+    ::google::protobuf::RpcController *controller,
+    const ::paddle::distributed::PsRequestMessage *request,
+    ::paddle::distributed::PsResponseMessage *response,
+    ::google::protobuf::Closure *done) {
+  if (graph_service != NULL && local_channel == channel()) {
+    // VLOG(0)<<"use local";
+    task_pool->enqueue([this, controller, request, response, done]() -> int {
+      this->graph_service->service(controller, request, response, done);
+      return 0;
+    });
+  } else {
+    // VLOG(0)<<"use server";
+    PsService_Stub::service(controller, request, response, done);
+  }
+}
+
+int GraphBrpcClient::get_server_index_by_id(uint64_t id) {
+  int shard_num = get_shard_num();
+  int shard_per_server = shard_num % server_size == 0
+                             ? shard_num / server_size
+                             : shard_num / server_size + 1;
+  return id % shard_num / shard_per_server;
+}
+
+std::future<int32_t> GraphBrpcClient::get_node_feat(
+    const uint32_t &table_id, const std::vector<uint64_t> &node_ids,
+    const std::vector<std::string> &feature_names,
+    std::vector<std::vector<std::string>> &res) {
+  std::vector<int> request2server;
+  std::vector<int> server2request(server_size, -1);
+  for (int query_idx = 0; query_idx < node_ids.size(); ++query_idx) {
+    int server_index = get_server_index_by_id(node_ids[query_idx]);
+    if (server2request[server_index] == -1) {
+      server2request[server_index] = request2server.size();
+      request2server.push_back(server_index);
+    }
+  }
+  size_t request_call_num = request2server.size();
+  std::vector<std::vector<uint64_t>> node_id_buckets(request_call_num);
+  std::vector<std::vector<int>> query_idx_buckets(request_call_num);
+  for (int query_idx = 0; query_idx < node_ids.size(); ++query_idx) {
+    int server_index = get_server_index_by_id(node_ids[query_idx]);
+    int request_idx = server2request[server_index];
+    node_id_buckets[request_idx].push_back(node_ids[query_idx]);
+    query_idx_buckets[request_idx].push_back(query_idx);
+  }
+
+  DownpourBrpcClosure *closure = new DownpourBrpcClosure(
+      request_call_num,
+      [&, node_id_buckets, query_idx_buckets, request_call_num](void *done) {
+        int ret = 0;
+        auto *closure = (DownpourBrpcClosure *)done;
+        int fail_num = 0;
+        for (int request_idx = 0; request_idx < request_call_num;
+             ++request_idx) {
+          if (closure->check_response(request_idx,
+                                      PS_GRAPH_SAMPLE_NEIGHBOORS) != 0) {
+            ++fail_num;
+          } else {
+            auto &res_io_buffer =
+                closure->cntl(request_idx)->response_attachment();
+            butil::IOBufBytesIterator io_buffer_itr(res_io_buffer);
+            size_t bytes_size = io_buffer_itr.bytes_left();
+            std::unique_ptr<char[]> buffer_wrapper(new char[bytes_size]);
+            char *buffer = buffer_wrapper.get();
+            io_buffer_itr.copy_and_forward((void *)(buffer), bytes_size);
+
+            for (size_t feat_idx = 0; feat_idx < feature_names.size();
+                 ++feat_idx) {
+              for (size_t node_idx = 0;
+                   node_idx < query_idx_buckets.at(request_idx).size();
+                   ++node_idx) {
+                int query_idx = query_idx_buckets.at(request_idx).at(node_idx);
+                size_t feat_len = *(size_t *)(buffer);
+                buffer += sizeof(size_t);
+                auto feature = std::string(buffer, feat_len);
+                res[feat_idx][query_idx] = feature;
+                buffer += feat_len;
+              }
+            }
+          }
+          if (fail_num == request_call_num) {
+            ret = -1;
+          }
+        }
+        closure->set_promise_value(ret);
+      });
+
+  auto promise = std::make_shared<std::promise<int32_t>>();
+  closure->add_promise(promise);
+  std::future<int> fut = promise->get_future();
+
+  for (int request_idx = 0; request_idx < request_call_num; ++request_idx) {
+    int server_index = request2server[request_idx];
+    closure->request(request_idx)->set_cmd_id(PS_GRAPH_GET_NODE_FEAT);
+    closure->request(request_idx)->set_table_id(table_id);
+    closure->request(request_idx)->set_client_id(_client_id);
+    size_t node_num = node_id_buckets[request_idx].size();
+
+    closure->request(request_idx)
+        ->add_params((char *)node_id_buckets[request_idx].data(),
+                     sizeof(uint64_t) * node_num);
+    std::string joint_feature_name =
+        paddle::string::join_strings(feature_names, '\t');
+    closure->request(request_idx)
+        ->add_params(joint_feature_name.c_str(), joint_feature_name.size());
+
+    PsService_Stub rpc_stub(get_cmd_channel(server_index));
+    closure->cntl(request_idx)->set_log_id(butil::gettimeofday_ms());
+    rpc_stub.service(closure->cntl(request_idx), closure->request(request_idx),
+                     closure->response(request_idx), closure);
+  }
+
+  return fut;
+}
+// char* &buffer,int &actual_size
+std::future<int32_t> GraphBrpcClient::batch_sample_neighboors(
+    uint32_t table_id, std::vector<uint64_t> node_ids, int sample_size,
+    std::vector<std::vector<std::pair<uint64_t, float>>> &res) {
+  std::vector<int> request2server;
+  std::vector<int> server2request(server_size, -1);
+  res.clear();
+  for (int query_idx = 0; query_idx < node_ids.size(); ++query_idx) {
+    int server_index = get_server_index_by_id(node_ids[query_idx]);
+    if (server2request[server_index] == -1) {
+      server2request[server_index] = request2server.size();
+      request2server.push_back(server_index);
+    }
+    res.push_back(std::vector<std::pair<uint64_t, float>>());
+  }
+  size_t request_call_num = request2server.size();
+  std::vector<std::vector<uint64_t>> node_id_buckets(request_call_num);
+  std::vector<std::vector<int>> query_idx_buckets(request_call_num);
+  for (int query_idx = 0; query_idx < node_ids.size(); ++query_idx) {
+    int server_index = get_server_index_by_id(node_ids[query_idx]);
+    int request_idx = server2request[server_index];
+    node_id_buckets[request_idx].push_back(node_ids[query_idx]);
+    query_idx_buckets[request_idx].push_back(query_idx);
+  }
+
+  DownpourBrpcClosure *closure = new DownpourBrpcClosure(
+      request_call_num,
+      [&, node_id_buckets, query_idx_buckets, request_call_num](void *done) {
+        int ret = 0;
+        auto *closure = (DownpourBrpcClosure *)done;
+        int fail_num = 0;
+        for (int request_idx = 0; request_idx < request_call_num;
+             ++request_idx) {
+          if (closure->check_response(request_idx,
+                                      PS_GRAPH_SAMPLE_NEIGHBOORS) != 0) {
+            ++fail_num;
+          } else {
+            auto &res_io_buffer =
+                closure->cntl(request_idx)->response_attachment();
+            butil::IOBufBytesIterator io_buffer_itr(res_io_buffer);
+            size_t bytes_size = io_buffer_itr.bytes_left();
+            std::unique_ptr<char[]> buffer_wrapper(new char[bytes_size]);
+            char *buffer = buffer_wrapper.get();
+            io_buffer_itr.copy_and_forward((void *)(buffer), bytes_size);
+
+            size_t node_num = *(size_t *)buffer;
+            int *actual_sizes = (int *)(buffer + sizeof(size_t));
+            char *node_buffer =
+                buffer + sizeof(size_t) + sizeof(int) * node_num;
+
+            int offset = 0;
+            for (size_t node_idx = 0; node_idx < node_num; ++node_idx) {
+              int query_idx = query_idx_buckets.at(request_idx).at(node_idx);
+              int actual_size = actual_sizes[node_idx];
+              int start = 0;
+              while (start < actual_size) {
+                res[query_idx].push_back(
+                    {*(uint64_t *)(node_buffer + offset + start),
+                     *(float *)(node_buffer + offset + start +
+                                GraphNode::id_size)});
+                start += GraphNode::id_size + GraphNode::weight_size;
+              }
+              offset += actual_size;
+            }
+          }
+          if (fail_num == request_call_num) {
+            ret = -1;
+          }
+        }
+        closure->set_promise_value(ret);
+      });
+
+  auto promise = std::make_shared<std::promise<int32_t>>();
+  closure->add_promise(promise);
+  std::future<int> fut = promise->get_future();
+
+  for (int request_idx = 0; request_idx < request_call_num; ++request_idx) {
+    int server_index = request2server[request_idx];
+    closure->request(request_idx)->set_cmd_id(PS_GRAPH_SAMPLE_NEIGHBOORS);
+    closure->request(request_idx)->set_table_id(table_id);
+    closure->request(request_idx)->set_client_id(_client_id);
+    size_t node_num = node_id_buckets[request_idx].size();
+
+    closure->request(request_idx)
+        ->add_params((char *)node_id_buckets[request_idx].data(),
+                     sizeof(uint64_t) * node_num);
+    closure->request(request_idx)
+        ->add_params((char *)&sample_size, sizeof(int));
+    // PsService_Stub rpc_stub(get_cmd_channel(server_index));
+    GraphPsService_Stub rpc_stub =
+        getServiceStub(get_cmd_channel(server_index));
+    closure->cntl(request_idx)->set_log_id(butil::gettimeofday_ms());
+    rpc_stub.service(closure->cntl(request_idx), closure->request(request_idx),
+                     closure->response(request_idx), closure);
+  }
+
+  return fut;
+}
+std::future<int32_t> GraphBrpcClient::random_sample_nodes(
+    uint32_t table_id, int server_index, int sample_size,
+    std::vector<uint64_t> &ids) {
+  DownpourBrpcClosure *closure = new DownpourBrpcClosure(1, [&](void *done) {
+    int ret = 0;
+    auto *closure = (DownpourBrpcClosure *)done;
+    if (closure->check_response(0, PS_GRAPH_SAMPLE_NODES) != 0) {
+      ret = -1;
+    } else {
+      auto &res_io_buffer = closure->cntl(0)->response_attachment();
+      butil::IOBufBytesIterator io_buffer_itr(res_io_buffer);
+      size_t bytes_size = io_buffer_itr.bytes_left();
+      char buffer[bytes_size];
+      auto size = io_buffer_itr.copy_and_forward((void *)(buffer), bytes_size);
+      int index = 0;
+      while (index < bytes_size) {
+        ids.push_back(*(uint64_t *)(buffer + index));
+        index += GraphNode::id_size;
+      }
+    }
+    closure->set_promise_value(ret);
+  });
+  auto promise = std::make_shared<std::promise<int32_t>>();
+  closure->add_promise(promise);
+  std::future<int> fut = promise->get_future();
+  ;
+  closure->request(0)->set_cmd_id(PS_GRAPH_SAMPLE_NODES);
+  closure->request(0)->set_table_id(table_id);
+  closure->request(0)->set_client_id(_client_id);
+  closure->request(0)->add_params((char *)&sample_size, sizeof(int));
+  ;
+  // PsService_Stub rpc_stub(get_cmd_channel(server_index));
+  GraphPsService_Stub rpc_stub = getServiceStub(get_cmd_channel(server_index));
+  closure->cntl(0)->set_log_id(butil::gettimeofday_ms());
+  rpc_stub.service(closure->cntl(0), closure->request(0), closure->response(0),
+                   closure);
+  return fut;
+}
+std::future<int32_t> GraphBrpcClient::pull_graph_list(
+    uint32_t table_id, int server_index, int start, int size, int step,
+    std::vector<FeatureNode> &res) {
+  DownpourBrpcClosure *closure = new DownpourBrpcClosure(1, [&](void *done) {
+    int ret = 0;
+    auto *closure = (DownpourBrpcClosure *)done;
+    if (closure->check_response(0, PS_PULL_GRAPH_LIST) != 0) {
+      ret = -1;
+    } else {
+      auto &res_io_buffer = closure->cntl(0)->response_attachment();
+      butil::IOBufBytesIterator io_buffer_itr(res_io_buffer);
+      size_t bytes_size = io_buffer_itr.bytes_left();
+      char buffer[bytes_size];
+      io_buffer_itr.copy_and_forward((void *)(buffer), bytes_size);
+      int index = 0;
+      while (index < bytes_size) {
+        FeatureNode node;
+        node.recover_from_buffer(buffer + index);
+        index += node.get_size(false);
+        res.push_back(node);
+      }
+    }
+    closure->set_promise_value(ret);
+  });
+  auto promise = std::make_shared<std::promise<int32_t>>();
+  closure->add_promise(promise);
+  std::future<int> fut = promise->get_future();
+  closure->request(0)->set_cmd_id(PS_PULL_GRAPH_LIST);
+  closure->request(0)->set_table_id(table_id);
+  closure->request(0)->set_client_id(_client_id);
+  closure->request(0)->add_params((char *)&start, sizeof(int));
+  closure->request(0)->add_params((char *)&size, sizeof(int));
+  closure->request(0)->add_params((char *)&step, sizeof(int));
+  // PsService_Stub rpc_stub(get_cmd_channel(server_index));
+  GraphPsService_Stub rpc_stub = getServiceStub(get_cmd_channel(server_index));
+  closure->cntl(0)->set_log_id(butil::gettimeofday_ms());
+  rpc_stub.service(closure->cntl(0), closure->request(0), closure->response(0),
+                   closure);
+  return fut;
+}
+int32_t GraphBrpcClient::initialize() {
+  // set_shard_num(_config.shard_num());
+  BrpcPsClient::initialize();
+  server_size = get_server_nums();
+  graph_service = NULL;
+  local_channel = NULL;
+  return 0;
+}
+}
+}

paddle/fluid/distributed/service/graph_brpc_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 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 <ThreadPool.h>
+#include <memory>
+#include <string>
+#include <vector>
+
+#include <utility>
+#include "ThreadPool.h"
+#include "brpc/channel.h"
+#include "brpc/controller.h"
+#include "brpc/server.h"
+#include "paddle/fluid/distributed/service/brpc_ps_client.h"
+#include "paddle/fluid/distributed/service/graph_brpc_server.h"
+#include "paddle/fluid/distributed/service/ps_client.h"
+#include "paddle/fluid/distributed/table/table.h"
+#include "paddle/fluid/framework/lod_tensor.h"
+#include "paddle/fluid/framework/scope.h"
+#include "paddle/fluid/framework/tensor_util.h"
+
+namespace paddle {
+namespace distributed {
+
+class GraphPsService_Stub : public PsService_Stub {
+ public:
+  GraphPsService_Stub(::google::protobuf::RpcChannel* channel,
+                      ::google::protobuf::RpcChannel* local_channel = NULL,
+                      GraphBrpcService* service = NULL, int thread_num = 1)
+      : PsService_Stub(channel) {
+    this->local_channel = local_channel;
+    this->graph_service = service;
+    task_pool.reset(new ::ThreadPool(thread_num));
+  }
+  virtual ~GraphPsService_Stub() {}
+
+  // implements PsService ------------------------------------------
+  GraphBrpcService* graph_service;
+  std::shared_ptr<::ThreadPool> task_pool;
+  ::google::protobuf::RpcChannel* local_channel;
+  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(GraphPsService_Stub);
+  void service(::google::protobuf::RpcController* controller,
+               const ::paddle::distributed::PsRequestMessage* request,
+               ::paddle::distributed::PsResponseMessage* response,
+               ::google::protobuf::Closure* done);
+};
+class GraphBrpcClient : public BrpcPsClient {
+ public:
+  GraphBrpcClient() {}
+  virtual ~GraphBrpcClient() {}
+  // given a batch of nodes, sample graph_neighboors for each of them
+  virtual std::future<int32_t> batch_sample_neighboors(
+      uint32_t table_id, std::vector<uint64_t> node_ids, int sample_size,
+      std::vector<std::vector<std::pair<uint64_t, float>>>& res);
+
+  virtual std::future<int32_t> pull_graph_list(uint32_t table_id,
+                                               int server_index, int start,
+                                               int size, int step,
+                                               std::vector<FeatureNode>& res);
+  virtual std::future<int32_t> random_sample_nodes(uint32_t table_id,
+                                                   int server_index,
+                                                   int sample_size,
+                                                   std::vector<uint64_t>& ids);
+  virtual std::future<int32_t> get_node_feat(
+      const uint32_t& table_id, const std::vector<uint64_t>& node_ids,
+      const std::vector<std::string>& feature_names,
+      std::vector<std::vector<std::string>>& res);
+  virtual int32_t initialize();
+  int get_shard_num() { return shard_num; }
+  void set_shard_num(int shard_num) { this->shard_num = shard_num; }
+  int get_server_index_by_id(uint64_t id);
+  void set_local_channel(int index) {
+    this->local_channel = get_cmd_channel(index);
+  }
+  void set_local_graph_service(GraphBrpcService* graph_service) {
+    this->graph_service = graph_service;
+  }
+  GraphPsService_Stub getServiceStub(::google::protobuf::RpcChannel* channel,
+                                     int thread_num = 1) {
+    return GraphPsService_Stub(channel, local_channel, graph_service,
+                               thread_num);
+  }
+
+ private:
+  int shard_num;
+  size_t server_size;
+  ::google::protobuf::RpcChannel* local_channel;
+  GraphBrpcService* graph_service;
+};
+
+}  // namespace distributed
+}  // namespace paddle

paddle/fluid/distributed/service/graph_brpc_server.cc

+// 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.
+
+#include "paddle/fluid/distributed/service/graph_brpc_server.h"
+#include "paddle/fluid/distributed/service/brpc_ps_server.h"
+
+#include <thread>  // NOLINT
+#include "butil/endpoint.h"
+#include "iomanip"
+#include "paddle/fluid/distributed/service/brpc_ps_client.h"
+#include "paddle/fluid/distributed/table/table.h"
+#include "paddle/fluid/framework/archive.h"
+#include "paddle/fluid/platform/profiler.h"
+namespace paddle {
+namespace distributed {
+
+int32_t GraphBrpcServer::initialize() {
+  auto &service_config = _config.downpour_server_param().service_param();
+  if (!service_config.has_service_class()) {
+    LOG(ERROR) << "miss service_class in ServerServiceParameter";
+    return -1;
+  }
+  auto *service =
+      CREATE_PSCORE_CLASS(PsBaseService, service_config.service_class());
+  if (service == NULL) {
+    LOG(ERROR) << "service is unregistered, service_name:"
+               << service_config.service_class();
+    return -1;
+  }
+
+  _service.reset(service);
+  if (service->configure(this) != 0 || service->initialize() != 0) {
+    LOG(ERROR) << "service initialize failed, service_name:"
+               << service_config.service_class();
+    return -1;
+  }
+  if (_server.AddService(service, brpc::SERVER_DOESNT_OWN_SERVICE) != 0) {
+    LOG(ERROR) << "service add to brpc failed, service:"
+               << service_config.service_class();
+    return -1;
+  }
+  return 0;
+}
+
+uint64_t GraphBrpcServer::start(const std::string &ip, uint32_t port) {
+  std::unique_lock<std::mutex> lock(mutex_);
+
+  std::string ip_port = ip + ":" + std::to_string(port);
+  VLOG(3) << "server of rank " << _rank << " starts at " << ip_port;
+  brpc::ServerOptions options;
+
+  int num_threads = std::thread::hardware_concurrency();
+  auto trainers = _environment->get_trainers();
+  options.num_threads = trainers > num_threads ? trainers : num_threads;
+
+  if (_server.Start(ip_port.c_str(), &options) != 0) {
+    LOG(ERROR) << "GraphBrpcServer start failed, ip_port=" << ip_port;
+    return 0;
+  }
+  _environment->registe_ps_server(ip, port, _rank);
+  return 0;
+}
+
+int32_t GraphBrpcServer::port() { return _server.listen_address().port; }
+
+int32_t GraphBrpcService::initialize() {
+  _is_initialize_shard_info = false;
+  _service_handler_map[PS_STOP_SERVER] = &GraphBrpcService::stop_server;
+  _service_handler_map[PS_LOAD_ONE_TABLE] = &GraphBrpcService::load_one_table;
+  _service_handler_map[PS_LOAD_ALL_TABLE] = &GraphBrpcService::load_all_table;
+
+  _service_handler_map[PS_PRINT_TABLE_STAT] =
+      &GraphBrpcService::print_table_stat;
+  _service_handler_map[PS_BARRIER] = &GraphBrpcService::barrier;
+  _service_handler_map[PS_START_PROFILER] = &GraphBrpcService::start_profiler;
+  _service_handler_map[PS_STOP_PROFILER] = &GraphBrpcService::stop_profiler;
+
+  _service_handler_map[PS_PULL_GRAPH_LIST] = &GraphBrpcService::pull_graph_list;
+  _service_handler_map[PS_GRAPH_SAMPLE_NEIGHBOORS] =
+      &GraphBrpcService::graph_random_sample_neighboors;
+  _service_handler_map[PS_GRAPH_SAMPLE_NODES] =
+      &GraphBrpcService::graph_random_sample_nodes;
+  _service_handler_map[PS_GRAPH_GET_NODE_FEAT] =
+      &GraphBrpcService::graph_get_node_feat;
+
+  // shard初始化,server启动后才可从env获取到server_list的shard信息
+  initialize_shard_info();
+
+  return 0;
+}
+
+#define CHECK_TABLE_EXIST(table, request, response)        \
+  if (table == NULL) {                                     \
+    std::string err_msg("table not found with table_id:"); \
+    err_msg.append(std::to_string(request.table_id()));    \
+    set_response_code(response, -1, err_msg.c_str());      \
+    return -1;                                             \
+  }
+
+int32_t GraphBrpcService::initialize_shard_info() {
+  if (!_is_initialize_shard_info) {
+    std::lock_guard<std::mutex> guard(_initialize_shard_mutex);
+    if (_is_initialize_shard_info) {
+      return 0;
+    }
+    size_t shard_num = _server->environment()->get_ps_servers().size();
+    auto &table_map = *(_server->table());
+    for (auto itr : table_map) {
+      itr.second->set_shard(_rank, shard_num);
+    }
+    _is_initialize_shard_info = true;
+  }
+  return 0;
+}
+
+void GraphBrpcService::service(google::protobuf::RpcController *cntl_base,
+                               const PsRequestMessage *request,
+                               PsResponseMessage *response,
+                               google::protobuf::Closure *done) {
+  brpc::ClosureGuard done_guard(done);
+  std::string log_label("ReceiveCmd-");
+  if (!request->has_table_id()) {
+    set_response_code(*response, -1, "PsRequestMessage.tabel_id is required");
+    return;
+  }
+
+  response->set_err_code(0);
+  response->set_err_msg("");
+  auto *table = _server->table(request->table_id());
+  brpc::Controller *cntl = static_cast<brpc::Controller *>(cntl_base);
+  auto itr = _service_handler_map.find(request->cmd_id());
+  if (itr == _service_handler_map.end()) {
+    std::string err_msg(
+        "undefined cmd_id, should match PsCmdID in ps.proto, cmd_id:");
+    err_msg.append(std::to_string(request->cmd_id()));
+    set_response_code(*response, -1, err_msg.c_str());
+    return;
+  }
+  serviceFunc handler_func = itr->second;
+  int service_ret = (this->*handler_func)(table, *request, *response, cntl);
+  if (service_ret != 0) {
+    response->set_err_code(service_ret);
+    response->set_err_msg("server internal error");
+  }
+}
+
+int32_t GraphBrpcService::barrier(Table *table, const PsRequestMessage &request,
+                                  PsResponseMessage &response,
+                                  brpc::Controller *cntl) {
+  CHECK_TABLE_EXIST(table, request, response)
+
+  if (request.params_size() < 1) {
+    set_response_code(response, -1,
+                      "PsRequestMessage.params is requeired at "
+                      "least 1 for num of sparse_key");
+    return 0;
+  }
+
+  auto trainer_id = request.client_id();
+  auto barrier_type = request.params(0);
+  table->barrier(trainer_id, barrier_type);
+  return 0;
+}
+
+int32_t GraphBrpcService::print_table_stat(Table *table,
+                                           const PsRequestMessage &request,
+                                           PsResponseMessage &response,
+                                           brpc::Controller *cntl) {
+  CHECK_TABLE_EXIST(table, request, response)
+  std::pair<int64_t, int64_t> ret = table->print_table_stat();
+  paddle::framework::BinaryArchive ar;
+  ar << ret.first << ret.second;
+  std::string table_info(ar.Buffer(), ar.Length());
+  response.set_data(table_info);
+
+  return 0;
+}
+
+int32_t GraphBrpcService::load_one_table(Table *table,
+                                         const PsRequestMessage &request,
+                                         PsResponseMessage &response,
+                                         brpc::Controller *cntl) {
+  CHECK_TABLE_EXIST(table, request, response)
+  if (request.params_size() < 2) {
+    set_response_code(
+        response, -1,
+        "PsRequestMessage.datas is requeired at least 2 for path & load_param");
+    return -1;
+  }
+  if (table->load(request.params(0), request.params(1)) != 0) {
+    set_response_code(response, -1, "table load failed");
+    return -1;
+  }
+  return 0;
+}
+
+int32_t GraphBrpcService::load_all_table(Table *table,
+                                         const PsRequestMessage &request,
+                                         PsResponseMessage &response,
+                                         brpc::Controller *cntl) {
+  auto &table_map = *(_server->table());
+  for (auto &itr : table_map) {
+    if (load_one_table(itr.second.get(), request, response, cntl) != 0) {
+      LOG(ERROR) << "load table[" << itr.first << "] failed";
+      return -1;
+    }
+  }
+  return 0;
+}
+
+int32_t GraphBrpcService::stop_server(Table *table,
+                                      const PsRequestMessage &request,
+                                      PsResponseMessage &response,
+                                      brpc::Controller *cntl) {
+  GraphBrpcServer *p_server = (GraphBrpcServer *)_server;
+  std::thread t_stop([p_server]() {
+    p_server->stop();
+    LOG(INFO) << "Server Stoped";
+  });
+  p_server->export_cv()->notify_all();
+  t_stop.detach();
+  return 0;
+}
+
+int32_t GraphBrpcService::stop_profiler(Table *table,
+                                        const PsRequestMessage &request,
+                                        PsResponseMessage &response,
+                                        brpc::Controller *cntl) {
+  platform::DisableProfiler(platform::EventSortingKey::kDefault,
+                            string::Sprintf("server_%s_profile", _rank));
+  return 0;
+}
+
+int32_t GraphBrpcService::start_profiler(Table *table,
+                                         const PsRequestMessage &request,
+                                         PsResponseMessage &response,
+                                         brpc::Controller *cntl) {
+  platform::EnableProfiler(platform::ProfilerState::kCPU);
+  return 0;
+}
+
+int32_t GraphBrpcService::pull_graph_list(Table *table,
+                                          const PsRequestMessage &request,
+                                          PsResponseMessage &response,
+                                          brpc::Controller *cntl) {
+  CHECK_TABLE_EXIST(table, request, response)
+  if (request.params_size() < 3) {
+    set_response_code(response, -1,
+                      "pull_graph_list request requires at least 3 arguments");
+    return 0;
+  }
+  int start = *(int *)(request.params(0).c_str());
+  int size = *(int *)(request.params(1).c_str());
+  int step = *(int *)(request.params(2).c_str());
+  std::unique_ptr<char[]> buffer;
+  int actual_size;
+  table->pull_graph_list(start, size, buffer, actual_size, false, step);
+  cntl->response_attachment().append(buffer.get(), actual_size);
+  return 0;
+}
+int32_t GraphBrpcService::graph_random_sample_neighboors(
+    Table *table, const PsRequestMessage &request, PsResponseMessage &response,
+    brpc::Controller *cntl) {
+  CHECK_TABLE_EXIST(table, request, response)
+  if (request.params_size() < 2) {
+    set_response_code(
+        response, -1,
+        "graph_random_sample request requires at least 2 arguments");
+    return 0;
+  }
+  size_t node_num = request.params(0).size() / sizeof(uint64_t);
+  uint64_t *node_data = (uint64_t *)(request.params(0).c_str());
+  int sample_size = *(uint64_t *)(request.params(1).c_str());
+  std::vector<std::unique_ptr<char[]>> buffers(node_num);
+  std::vector<int> actual_sizes(node_num, 0);
+  table->random_sample_neighboors(node_data, sample_size, buffers,
+                                  actual_sizes);
+
+  cntl->response_attachment().append(&node_num, sizeof(size_t));
+  cntl->response_attachment().append(actual_sizes.data(),
+                                     sizeof(int) * node_num);
+  for (size_t idx = 0; idx < node_num; ++idx) {
+    cntl->response_attachment().append(buffers[idx].get(), actual_sizes[idx]);
+  }
+  return 0;
+}
+int32_t GraphBrpcService::graph_random_sample_nodes(
+    Table *table, const PsRequestMessage &request, PsResponseMessage &response,
+    brpc::Controller *cntl) {
+  size_t size = *(uint64_t *)(request.params(0).c_str());
+  std::unique_ptr<char[]> buffer;
+  int actual_size;
+  if (table->random_sample_nodes(size, buffer, actual_size) == 0) {
+    cntl->response_attachment().append(buffer.get(), actual_size);
+  } else
+    cntl->response_attachment().append(NULL, 0);
+
+  return 0;
+}
+
+int32_t GraphBrpcService::graph_get_node_feat(Table *table,
+                                              const PsRequestMessage &request,
+                                              PsResponseMessage &response,
+                                              brpc::Controller *cntl) {
+  CHECK_TABLE_EXIST(table, request, response)
+  if (request.params_size() < 2) {
+    set_response_code(
+        response, -1,
+        "graph_get_node_feat request requires at least 2 arguments");
+    return 0;
+  }
+  size_t node_num = request.params(0).size() / sizeof(uint64_t);
+  uint64_t *node_data = (uint64_t *)(request.params(0).c_str());
+  std::vector<uint64_t> node_ids(node_data, node_data + node_num);
+
+  std::vector<std::string> feature_names =
+      paddle::string::split_string<std::string>(request.params(1), "\t");
+
+  std::vector<std::vector<std::string>> feature(
+      feature_names.size(), std::vector<std::string>(node_num));
+
+  table->get_node_feat(node_ids, feature_names, feature);
+
+  for (size_t feat_idx = 0; feat_idx < feature_names.size(); ++feat_idx) {
+    for (size_t node_idx = 0; node_idx < node_num; ++node_idx) {
+      size_t feat_len = feature[feat_idx][node_idx].size();
+      cntl->response_attachment().append(&feat_len, sizeof(size_t));
+      cntl->response_attachment().append(feature[feat_idx][node_idx].data(),
+                                         feat_len);
+    }
+  }
+
+  return 0;
+}
+}  // namespace distributed
+}  // namespace paddle

paddle/fluid/distributed/service/graph_brpc_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 "brpc/channel.h"
+#include "brpc/controller.h"
+#include "brpc/server.h"
+
+#include <memory>
+#include <vector>
+#include "paddle/fluid/distributed/service/brpc_ps_server.h"
+#include "paddle/fluid/distributed/service/server.h"
+
+namespace paddle {
+namespace distributed {
+class GraphBrpcServer : public PSServer {
+ public:
+  GraphBrpcServer() {}
+  virtual ~GraphBrpcServer() {}
+  PsBaseService *get_service() { return _service.get(); }
+  virtual uint64_t start(const std::string &ip, uint32_t port);
+  virtual int32_t stop() {
+    std::unique_lock<std::mutex> lock(mutex_);
+    if (stoped_) return 0;
+    stoped_ = true;
+    // cv_.notify_all();
+    _server.Stop(1000);
+    _server.Join();
+    return 0;
+  }
+  virtual int32_t port();
+
+  std::condition_variable *export_cv() { return &cv_; }
+
+ private:
+  virtual int32_t initialize();
+  mutable std::mutex mutex_;
+  std::condition_variable cv_;
+  bool stoped_ = false;
+  brpc::Server _server;
+  std::shared_ptr<PsBaseService> _service;
+  std::vector<std::shared_ptr<brpc::Channel>> _pserver_channels;
+};
+
+class GraphBrpcService;
+
+typedef int32_t (GraphBrpcService::*serviceFunc)(
+    Table *table, const PsRequestMessage &request, PsResponseMessage &response,
+    brpc::Controller *cntl);
+
+class GraphBrpcService : public PsBaseService {
+ public:
+  virtual int32_t initialize() override;
+
+  virtual void service(::google::protobuf::RpcController *controller,
+                       const PsRequestMessage *request,
+                       PsResponseMessage *response,
+                       ::google::protobuf::Closure *done) override;
+
+ protected:
+  std::unordered_map<int32_t, serviceFunc> _service_handler_map;
+  int32_t initialize_shard_info();
+  int32_t pull_graph_list(Table *table, const PsRequestMessage &request,
+                          PsResponseMessage &response, brpc::Controller *cntl);
+  int32_t graph_random_sample_neighboors(Table *table,
+                                         const PsRequestMessage &request,
+                                         PsResponseMessage &response,
+                                         brpc::Controller *cntl);
+  int32_t graph_random_sample_nodes(Table *table,
+                                    const PsRequestMessage &request,
+                                    PsResponseMessage &response,
+                                    brpc::Controller *cntl);
+  int32_t graph_get_node_feat(Table *table, const PsRequestMessage &request,
+                              PsResponseMessage &response,
+                              brpc::Controller *cntl);
+  int32_t barrier(Table *table, const PsRequestMessage &request,
+                  PsResponseMessage &response, brpc::Controller *cntl);
+  int32_t load_one_table(Table *table, const PsRequestMessage &request,
+                         PsResponseMessage &response, brpc::Controller *cntl);
+  int32_t load_all_table(Table *table, const PsRequestMessage &request,
+                         PsResponseMessage &response, brpc::Controller *cntl);
+  int32_t stop_server(Table *table, const PsRequestMessage &request,
+                      PsResponseMessage &response, brpc::Controller *cntl);
+  int32_t start_profiler(Table *table, const PsRequestMessage &request,
+                         PsResponseMessage &response, brpc::Controller *cntl);
+  int32_t stop_profiler(Table *table, const PsRequestMessage &request,
+                        PsResponseMessage &response, brpc::Controller *cntl);
+
+  int32_t print_table_stat(Table *table, const PsRequestMessage &request,
+                           PsResponseMessage &response, brpc::Controller *cntl);
+
+ private:
+  bool _is_initialize_shard_info;
+  std::mutex _initialize_shard_mutex;
+  std::unordered_map<int32_t, serviceHandlerFunc> _msg_handler_map;
+  std::vector<float> _ori_values;
+  const int sample_nodes_ranges = 23;
+};
+
+}  // namespace distributed
+}  // namespace paddle

paddle/fluid/distributed/service/graph_py_service.cc

+// 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.
+
+#include "paddle/fluid/distributed/service/graph_py_service.h"
+#include <thread>  // NOLINT
+#include "butil/endpoint.h"
+#include "iomanip"
+#include "paddle/fluid/distributed/table/table.h"
+#include "paddle/fluid/framework/archive.h"
+#include "paddle/fluid/platform/profiler.h"
+namespace paddle {
+namespace distributed {
+std::vector<std::string> GraphPyService::split(std::string& str,
+                                               const char pattern) {
+  std::vector<std::string> res;
+  std::stringstream input(str);
+  std::string temp;
+  while (std::getline(input, temp, pattern)) {
+    res.push_back(temp);
+  }
+  return res;
+}
+
+void GraphPyService::add_table_feat_conf(std::string table_name,
+                                         std::string feat_name,
+                                         std::string feat_dtype,
+                                         int32_t feat_shape) {
+  if (this->table_id_map.count(table_name)) {
+    this->table_feat_conf_table_name.push_back(table_name);
+    this->table_feat_conf_feat_name.push_back(feat_name);
+    this->table_feat_conf_feat_dtype.push_back(feat_dtype);
+    this->table_feat_conf_feat_shape.push_back(feat_shape);
+  }
+}
+
+void GraphPyService::set_up(std::string ips_str, int shard_num,
+                            std::vector<std::string> node_types,
+                            std::vector<std::string> edge_types) {
+  set_shard_num(shard_num);
+  set_num_node_types(node_types.size());
+
+  for (size_t table_id = 0; table_id < node_types.size(); table_id++) {
+    this->table_id_map[node_types[table_id]] = this->table_id_map.size();
+  }
+  for (size_t table_id = 0; table_id < edge_types.size(); table_id++) {
+    this->table_id_map[edge_types[table_id]] = this->table_id_map.size();
+  }
+  std::istringstream stream(ips_str);
+  std::string ip;
+  server_size = 0;
+  std::vector<std::string> ips_list = split(ips_str, ';');
+  int index = 0;
+  for (auto ips : ips_list) {
+    auto ip_and_port = split(ips, ':');
+    server_list.push_back(ip_and_port[0]);
+    port_list.push_back(ip_and_port[1]);
+    uint32_t port = stoul(ip_and_port[1]);
+    auto ph_host = paddle::distributed::PSHost(ip_and_port[0], port, index);
+    host_sign_list.push_back(ph_host.serialize_to_string());
+    index++;
+  }
+}
+void GraphPyClient::start_client() {
+  std::map<uint64_t, std::vector<paddle::distributed::Region>> dense_regions;
+  dense_regions.insert(
+      std::pair<uint64_t, std::vector<paddle::distributed::Region>>(0, {}));
+  auto regions = dense_regions[0];
+  ::paddle::distributed::PSParameter worker_proto = GetWorkerProto();
+  paddle::distributed::PaddlePSEnvironment _ps_env;
+  auto servers_ = host_sign_list.size();
+  _ps_env = paddle::distributed::PaddlePSEnvironment();
+  _ps_env.set_ps_servers(&host_sign_list, servers_);
+  worker_ptr = std::shared_ptr<paddle::distributed::GraphBrpcClient>(
+      (paddle::distributed::GraphBrpcClient*)
+          paddle::distributed::PSClientFactory::create(worker_proto));
+  worker_ptr->configure(worker_proto, dense_regions, _ps_env, client_id);
+  worker_ptr->set_shard_num(get_shard_num());
+}
+void GraphPyServer::start_server(bool block) {
+  std::string ip = server_list[rank];
+  uint32_t port = std::stoul(port_list[rank]);
+  ::paddle::distributed::PSParameter server_proto = this->GetServerProto();
+
+  auto _ps_env = paddle::distributed::PaddlePSEnvironment();
+  _ps_env.set_ps_servers(&this->host_sign_list,
+                         this->host_sign_list.size());  // test
+  pserver_ptr = std::shared_ptr<paddle::distributed::GraphBrpcServer>(
+      (paddle::distributed::GraphBrpcServer*)
+          paddle::distributed::PSServerFactory::create(server_proto));
+  VLOG(0) << "pserver-ptr created ";
+  std::vector<framework::ProgramDesc> empty_vec;
+  framework::ProgramDesc empty_prog;
+  empty_vec.push_back(empty_prog);
+  pserver_ptr->configure(server_proto, _ps_env, rank, empty_vec);
+  pserver_ptr->start(ip, port);
+  std::condition_variable* cv_ = pserver_ptr->export_cv();
+  if (block) {
+    std::mutex mutex_;
+    std::unique_lock<std::mutex> lock(mutex_);
+    cv_->wait(lock);
+  }
+}
+::paddle::distributed::PSParameter GraphPyServer::GetServerProto() {
+  // Generate server proto desc
+  ::paddle::distributed::PSParameter server_fleet_desc;
+  ::paddle::distributed::ServerParameter* server_proto =
+      server_fleet_desc.mutable_server_param();
+  ::paddle::distributed::DownpourServerParameter* downpour_server_proto =
+      server_proto->mutable_downpour_server_param();
+  ::paddle::distributed::ServerServiceParameter* server_service_proto =
+      downpour_server_proto->mutable_service_param();
+  server_service_proto->set_service_class("GraphBrpcService");
+  server_service_proto->set_server_class("GraphBrpcServer");
+  server_service_proto->set_client_class("GraphBrpcClient");
+  server_service_proto->set_start_server_port(0);
+  server_service_proto->set_server_thread_num(12);
+
+  for (auto& tuple : this->table_id_map) {
+    VLOG(0) << " make a new table " << tuple.second;
+    ::paddle::distributed::TableParameter* sparse_table_proto =
+        downpour_server_proto->add_downpour_table_param();
+    std::vector<std::string> feat_name;
+    std::vector<std::string> feat_dtype;
+    std::vector<int32_t> feat_shape;
+    for (size_t i = 0; i < this->table_feat_conf_table_name.size(); i++) {
+      if (tuple.first == table_feat_conf_table_name[i]) {
+        feat_name.push_back(table_feat_conf_feat_name[i]);
+        feat_dtype.push_back(table_feat_conf_feat_dtype[i]);
+        feat_shape.push_back(table_feat_conf_feat_shape[i]);
+      }
+    }
+    std::string table_type;
+    if (tuple.second < this->num_node_types) {
+      table_type = "node";
+    } else {
+      table_type = "edge";
+    }
+
+    GetDownpourSparseTableProto(sparse_table_proto, tuple.second, tuple.first,
+                                table_type, feat_name, feat_dtype, feat_shape);
+  }
+
+  return server_fleet_desc;
+}
+
+::paddle::distributed::PSParameter GraphPyClient::GetWorkerProto() {
+  ::paddle::distributed::PSParameter worker_fleet_desc;
+  ::paddle::distributed::WorkerParameter* worker_proto =
+      worker_fleet_desc.mutable_worker_param();
+
+  ::paddle::distributed::DownpourWorkerParameter* downpour_worker_proto =
+      worker_proto->mutable_downpour_worker_param();
+
+  for (auto& tuple : this->table_id_map) {
+    VLOG(0) << " make a new table " << tuple.second;
+    ::paddle::distributed::TableParameter* worker_sparse_table_proto =
+        downpour_worker_proto->add_downpour_table_param();
+    std::vector<std::string> feat_name;
+    std::vector<std::string> feat_dtype;
+    std::vector<int32_t> feat_shape;
+    for (size_t i = 0; i < this->table_feat_conf_table_name.size(); i++) {
+      if (tuple.first == table_feat_conf_table_name[i]) {
+        feat_name.push_back(table_feat_conf_feat_name[i]);
+        feat_dtype.push_back(table_feat_conf_feat_dtype[i]);
+        feat_shape.push_back(table_feat_conf_feat_shape[i]);
+      }
+    }
+    std::string table_type;
+    if (tuple.second < this->num_node_types) {
+      table_type = "node";
+    } else {
+      table_type = "edge";
+    }
+
+    GetDownpourSparseTableProto(worker_sparse_table_proto, tuple.second,
+                                tuple.first, table_type, feat_name, feat_dtype,
+                                feat_shape);
+  }
+
+  ::paddle::distributed::ServerParameter* server_proto =
+      worker_fleet_desc.mutable_server_param();
+  ::paddle::distributed::DownpourServerParameter* downpour_server_proto =
+      server_proto->mutable_downpour_server_param();
+  ::paddle::distributed::ServerServiceParameter* server_service_proto =
+      downpour_server_proto->mutable_service_param();
+  server_service_proto->set_service_class("GraphBrpcService");
+  server_service_proto->set_server_class("GraphBrpcServer");
+  server_service_proto->set_client_class("GraphBrpcClient");
+  server_service_proto->set_start_server_port(0);
+  server_service_proto->set_server_thread_num(12);
+
+  for (auto& tuple : this->table_id_map) {
+    VLOG(0) << " make a new table " << tuple.second;
+    ::paddle::distributed::TableParameter* sparse_table_proto =
+        downpour_server_proto->add_downpour_table_param();
+    std::vector<std::string> feat_name;
+    std::vector<std::string> feat_dtype;
+    std::vector<int32_t> feat_shape;
+    for (size_t i = 0; i < this->table_feat_conf_table_name.size(); i++) {
+      if (tuple.first == table_feat_conf_table_name[i]) {
+        feat_name.push_back(table_feat_conf_feat_name[i]);
+        feat_dtype.push_back(table_feat_conf_feat_dtype[i]);
+        feat_shape.push_back(table_feat_conf_feat_shape[i]);
+      }
+    }
+    std::string table_type;
+    if (tuple.second < this->num_node_types) {
+      table_type = "node";
+    } else {
+      table_type = "edge";
+    }
+
+    GetDownpourSparseTableProto(sparse_table_proto, tuple.second, tuple.first,
+                                table_type, feat_name, feat_dtype, feat_shape);
+  }
+
+  return worker_fleet_desc;
+}
+void GraphPyClient::load_edge_file(std::string name, std::string filepath,
+                                   bool reverse) {
+  // 'e' means load edge
+  std::string params = "e";
+  if (reverse) {
+    // 'e<' means load edges from $2 to $1
+    params += "<";
+  } else {
+    // 'e>' means load edges from $1 to $2
+    params += ">";
+  }
+  if (this->table_id_map.count(name)) {
+    VLOG(0) << "loadding data with type " << name << " from " << filepath;
+    uint32_t table_id = this->table_id_map[name];
+    auto status =
+        get_ps_client()->load(table_id, std::string(filepath), params);
+    status.wait();
+  }
+}
+
+void GraphPyClient::load_node_file(std::string name, std::string filepath) {
+  // 'n' means load nodes and 'node_type' follows
+  std::string params = "n" + name;
+  if (this->table_id_map.count(name)) {
+    uint32_t table_id = this->table_id_map[name];
+    auto status =
+        get_ps_client()->load(table_id, std::string(filepath), params);
+    status.wait();
+  }
+}
+std::vector<std::vector<std::pair<uint64_t, float>>>
+GraphPyClient::batch_sample_neighboors(std::string name,
+                                       std::vector<uint64_t> node_ids,
+                                       int sample_size) {
+  std::vector<std::vector<std::pair<uint64_t, float>>> v;
+  if (this->table_id_map.count(name)) {
+    uint32_t table_id = this->table_id_map[name];
+    auto status =
+        worker_ptr->batch_sample_neighboors(table_id, node_ids, sample_size, v);
+    status.wait();
+  }
+  return v;
+}
+
+std::vector<uint64_t> GraphPyClient::random_sample_nodes(std::string name,
+                                                         int server_index,
+                                                         int sample_size) {
+  std::vector<uint64_t> v;
+  if (this->table_id_map.count(name)) {
+    uint32_t table_id = this->table_id_map[name];
+    auto status =
+        worker_ptr->random_sample_nodes(table_id, server_index, sample_size, v);
+    status.wait();
+  }
+  return v;
+}
+
+// (name, dtype, ndarray)
+std::vector<std::vector<std::string>> GraphPyClient::get_node_feat(
+    std::string node_type, std::vector<uint64_t> node_ids,
+    std::vector<std::string> feature_names) {
+  std::vector<std::vector<std::string>> v(
+      feature_names.size(), std::vector<std::string>(node_ids.size()));
+  if (this->table_id_map.count(node_type)) {
+    uint32_t table_id = this->table_id_map[node_type];
+    auto status =
+        worker_ptr->get_node_feat(table_id, node_ids, feature_names, v);
+    status.wait();
+  }
+  return v;
+}
+
+std::vector<FeatureNode> GraphPyClient::pull_graph_list(std::string name,
+                                                        int server_index,
+                                                        int start, int size,
+                                                        int step) {
+  std::vector<FeatureNode> res;
+  if (this->table_id_map.count(name)) {
+    uint32_t table_id = this->table_id_map[name];
+    auto status = worker_ptr->pull_graph_list(table_id, server_index, start,
+                                              size, step, res);
+    status.wait();
+  }
+  return res;
+}
+
+void GraphPyClient::stop_server() {
+  VLOG(0) << "going to stop server";
+  std::unique_lock<std::mutex> lock(mutex_);
+  if (stoped_) return;
+  auto status = this->worker_ptr->stop_server();
+  if (status.get() == 0) stoped_ = true;
+}
+void GraphPyClient::finalize_worker() { this->worker_ptr->finalize_worker(); }
+}
+}

paddle/fluid/distributed/service/graph_py_service.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 <unistd.h>
+#include <condition_variable>  // NOLINT
+#include <fstream>
+#include <iomanip>
+#include <iostream>
+#include <sstream>
+#include <string>
+#include <thread>  // NOLINT
+#include <unordered_map>
+#include <vector>
+#include "google/protobuf/text_format.h"
+
+#include "gtest/gtest.h"
+#include "paddle/fluid/framework/lod_tensor.h"
+#include "paddle/fluid/framework/scope.h"
+#include "paddle/fluid/framework/tensor_util.h"
+#include "paddle/fluid/framework/variable.h"
+
+#include "paddle/fluid/distributed/ps.pb.h"
+#include "paddle/fluid/distributed/service/env.h"
+#include "paddle/fluid/distributed/service/graph_brpc_client.h"
+#include "paddle/fluid/distributed/service/graph_brpc_server.h"
+#include "paddle/fluid/distributed/service/sendrecv.pb.h"
+#include "paddle/fluid/distributed/service/service.h"
+#include "paddle/fluid/framework/program_desc.h"
+#include "paddle/fluid/operators/math/math_function.h"
+#include "paddle/fluid/platform/place.h"
+#include "paddle/fluid/string/printf.h"
+namespace paddle {
+namespace distributed {
+class GraphPyService {
+ protected:
+  std::vector<std::string> server_list, port_list, host_sign_list;
+  int server_size, shard_num;
+  int num_node_types;
+  std::unordered_map<std::string, uint32_t> table_id_map;
+  std::vector<std::string> table_feat_conf_table_name;
+  std::vector<std::string> table_feat_conf_feat_name;
+  std::vector<std::string> table_feat_conf_feat_dtype;
+  std::vector<int32_t> table_feat_conf_feat_shape;
+
+  // std::thread *server_thread, *client_thread;
+
+  // std::shared_ptr<paddle::distributed::PSServer> pserver_ptr;
+
+  // std::shared_ptr<paddle::distributed::PSClient> worker_ptr;
+
+ public:
+  // std::shared_ptr<paddle::distributed::PSServer> get_ps_server() {
+  //   return pserver_ptr;
+  // }
+  // std::shared_ptr<paddle::distributed::PSClient> get_ps_client() {
+  //   return worker_ptr;
+  // }
+  int get_shard_num() { return shard_num; }
+  void set_shard_num(int shard_num) { this->shard_num = shard_num; }
+  void GetDownpourSparseTableProto(
+      ::paddle::distributed::TableParameter* sparse_table_proto,
+      uint32_t table_id, std::string table_name, std::string table_type,
+      std::vector<std::string> feat_name, std::vector<std::string> feat_dtype,
+      std::vector<int32_t> feat_shape) {
+    sparse_table_proto->set_table_id(table_id);
+    sparse_table_proto->set_table_class("GraphTable");
+    sparse_table_proto->set_shard_num(shard_num);
+    sparse_table_proto->set_type(::paddle::distributed::PS_SPARSE_TABLE);
+    ::paddle::distributed::TableAccessorParameter* accessor_proto =
+        sparse_table_proto->mutable_accessor();
+
+    ::paddle::distributed::CommonAccessorParameter* common_proto =
+        sparse_table_proto->mutable_common();
+
+    // Set GraphTable Parameter
+    common_proto->set_table_name(table_name);
+    common_proto->set_name(table_type);
+    for (size_t i = 0; i < feat_name.size(); i++) {
+      common_proto->add_params(feat_dtype[i]);
+      common_proto->add_dims(feat_shape[i]);
+      common_proto->add_attributes(feat_name[i]);
+    }
+
+    accessor_proto->set_accessor_class("CommMergeAccessor");
+  }
+
+  void set_server_size(int server_size) { this->server_size = server_size; }
+  void set_num_node_types(int num_node_types) {
+    this->num_node_types = num_node_types;
+  }
+  int get_server_size(int server_size) { return server_size; }
+  std::vector<std::string> split(std::string& str, const char pattern);
+  void set_up(std::string ips_str, int shard_num,
+              std::vector<std::string> node_types,
+              std::vector<std::string> edge_types);
+
+  void add_table_feat_conf(std::string node_type, std::string feat_name,
+                           std::string feat_dtype, int32_t feat_shape);
+};
+class GraphPyServer : public GraphPyService {
+ public:
+  GraphPyServer() {}
+  void set_up(std::string ips_str, int shard_num,
+              std::vector<std::string> node_types,
+              std::vector<std::string> edge_types, int rank) {
+    set_rank(rank);
+    GraphPyService::set_up(ips_str, shard_num, node_types, edge_types);
+  }
+  int get_rank() { return rank; }
+  void set_rank(int rank) { this->rank = rank; }
+
+  void start_server(bool block = true);
+  ::paddle::distributed::PSParameter GetServerProto();
+  std::shared_ptr<paddle::distributed::GraphBrpcServer> get_ps_server() {
+    return pserver_ptr;
+  }
+
+ protected:
+  int rank;
+  std::shared_ptr<paddle::distributed::GraphBrpcServer> pserver_ptr;
+  std::thread* server_thread;
+};
+class GraphPyClient : public GraphPyService {
+ public:
+  void set_up(std::string ips_str, int shard_num,
+              std::vector<std::string> node_types,
+              std::vector<std::string> edge_types, int client_id) {
+    set_client_id(client_id);
+    GraphPyService::set_up(ips_str, shard_num, node_types, edge_types);
+  }
+  std::shared_ptr<paddle::distributed::GraphBrpcClient> get_ps_client() {
+    return worker_ptr;
+  }
+  void bind_local_server(int local_channel_index, GraphPyServer& server) {
+    worker_ptr->set_local_channel(local_channel_index);
+    worker_ptr->set_local_graph_service(
+        (paddle::distributed::GraphBrpcService*)server.get_ps_server()
+            ->get_service());
+  }
+  void stop_server();
+  void finalize_worker();
+  void load_edge_file(std::string name, std::string filepath, bool reverse);
+  void load_node_file(std::string name, std::string filepath);
+  int get_client_id() { return client_id; }
+  void set_client_id(int client_id) { this->client_id = client_id; }
+  void start_client();
+  std::vector<std::vector<std::pair<uint64_t, float>>> batch_sample_neighboors(
+      std::string name, std::vector<uint64_t> node_ids, int sample_size);
+  std::vector<uint64_t> random_sample_nodes(std::string name, int server_index,
+                                            int sample_size);
+  std::vector<std::vector<std::string>> get_node_feat(
+      std::string node_type, std::vector<uint64_t> node_ids,
+      std::vector<std::string> feature_names);
+  std::vector<FeatureNode> pull_graph_list(std::string name, int server_index,
+                                           int start, int size, int step = 1);
+  ::paddle::distributed::PSParameter GetWorkerProto();
+
+ protected:
+  mutable std::mutex mutex_;
+  int client_id;
+  std::shared_ptr<paddle::distributed::GraphBrpcClient> worker_ptr;
+  std::thread* client_thread;
+  bool stoped_ = false;
+};
+}
+}

paddle/fluid/distributed/service/ps_client.cc

@@ -15,12 +15,13 @@
 #include "paddle/fluid/distributed/service/ps_client.h"
 #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/table/table.h"
 
 namespace paddle {
 namespace distributed {
 REGISTER_PSCORE_CLASS(PSClient, BrpcPsClient);
-
+REGISTER_PSCORE_CLASS(PSClient, GraphBrpcClient);
 int32_t PSClient::configure(
     const PSParameter &config,
     const std::map<uint64_t, std::vector<paddle::distributed::Region>> &regions,
@@ -82,4 +83,4 @@ PSClient *PSClientFactory::create(const PSParameter &ps_config) {
   return client;
 }
 }  // namespace distributed
-}  // namespace paddle
+}  // namespace paddle
\ No newline at end of file

paddle/fluid/distributed/service/ps_client.h

@@ -24,16 +24,11 @@
 #include "paddle/fluid/distributed/service/env.h"
 #include "paddle/fluid/distributed/service/sendrecv.pb.h"
 #include "paddle/fluid/distributed/table/accessor.h"
+#include "paddle/fluid/distributed/table/graph_node.h"
 
 namespace paddle {
 namespace distributed {
 
-class PSEnvironment;
-class PsRequestMessage;
-class PsResponseMessage;
-class ValueAccessor;
-struct Region;
-
 using paddle::distributed::PsRequestMessage;
 using paddle::distributed::PsResponseMessage;
 
@@ -160,6 +155,7 @@ class PSClient {
     promise.set_value(-1);
     return fut;
   }
+
   // client2client消息处理，std::function<int32_t (int, int, const std::string&)
   // -> ret (msg_type, from_client_id, msg)
   typedef std::function<int32_t(int, int, const std::string &)> MsgHandlerFunc;

paddle/fluid/distributed/service/sendrecv.proto

@@ -48,6 +48,10 @@ enum PsCmdID {
   PS_START_PROFILER = 27;
   PS_STOP_PROFILER = 28;
   PS_PUSH_GLOBAL_STEP = 29;
+  PS_PULL_GRAPH_LIST = 30;
+  PS_GRAPH_SAMPLE_NEIGHBOORS = 31;
+  PS_GRAPH_SAMPLE_NODES = 32;
+  PS_GRAPH_GET_NODE_FEAT = 33;
 }
 
 message PsRequestMessage {
@@ -111,4 +115,4 @@ message MultiVariableMessage {
 service PsService {
   rpc service(PsRequestMessage) returns (PsResponseMessage);
   rpc SendAndRecvVariable(MultiVariableMessage) returns (MultiVariableMessage);
-};
\ No newline at end of file
+};

paddle/fluid/distributed/service/server.cc

@@ -16,6 +16,7 @@
 
 #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/table/table.h"
 
 namespace paddle {
@@ -23,6 +24,8 @@ namespace distributed {
 
 REGISTER_PSCORE_CLASS(PSServer, BrpcPsServer);
 REGISTER_PSCORE_CLASS(PsBaseService, BrpcPsService);
+REGISTER_PSCORE_CLASS(PSServer, GraphBrpcServer);
+REGISTER_PSCORE_CLASS(PsBaseService, GraphBrpcService);
 
 PSServer *PSServerFactory::create(const PSParameter &ps_config) {
   const auto &config = ps_config.server_param();

paddle/fluid/distributed/table/CMakeLists.txt

 set_property(GLOBAL PROPERTY TABLE_DEPS string_helper)
 
 get_property(TABLE_DEPS GLOBAL PROPERTY TABLE_DEPS)
-
+set_source_files_properties(graph_edge.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+cc_library(graph_edge SRCS graph_edge.cc)
+set_source_files_properties(graph_weighted_sampler.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+cc_library(WeightedSampler SRCS graph_weighted_sampler.cc DEPS graph_edge)
+set_source_files_properties(graph_node.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+cc_library(graph_node SRCS graph_node.cc DEPS WeightedSampler)
 set_source_files_properties(common_dense_table.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(common_sparse_table.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(sparse_geo_table.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(barrier_table.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+set_source_files_properties(common_graph_table.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 
-cc_library(common_table SRCS common_sparse_table.cc common_dense_table.cc sparse_geo_table.cc barrier_table.cc DEPS ${TABLE_DEPS} device_context string_helper simple_threadpool xxhash generator)
+cc_library(common_table SRCS common_sparse_table.cc common_dense_table.cc sparse_geo_table.cc barrier_table.cc common_graph_table.cc DEPS ${TABLE_DEPS} graph_edge graph_node device_context string_helper simple_threadpool xxhash generator)
 
 set_source_files_properties(tensor_accessor.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 set_source_files_properties(tensor_table.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})

paddle/fluid/distributed/table/common_graph_table.cc

+// 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.
+
+#include "paddle/fluid/distributed/table/common_graph_table.h"
+#include <time.h>
+#include <algorithm>
+#include <set>
+#include <sstream>
+#include "paddle/fluid/distributed/common/utils.h"
+#include "paddle/fluid/distributed/table/graph_node.h"
+#include "paddle/fluid/string/printf.h"
+#include "paddle/fluid/string/string_helper.h"
+namespace paddle {
+namespace distributed {
+
+std::vector<Node *> GraphShard::get_batch(int start, int end, int step) {
+  if (start < 0) start = 0;
+  std::vector<Node *> res;
+  for (int pos = start; pos < std::min(end, (int)bucket.size()); pos += step) {
+    res.push_back(bucket[pos]);
+  }
+  return res;
+}
+
+size_t GraphShard::get_size() { return bucket.size(); }
+
+GraphNode *GraphShard::add_graph_node(uint64_t id) {
+  if (node_location.find(id) == node_location.end()) {
+    node_location[id] = bucket.size();
+    bucket.push_back(new GraphNode(id));
+  }
+  return (GraphNode *)bucket[node_location[id]];
+}
+
+FeatureNode *GraphShard::add_feature_node(uint64_t id) {
+  if (node_location.find(id) == node_location.end()) {
+    node_location[id] = bucket.size();
+    bucket.push_back(new FeatureNode(id));
+  }
+  return (FeatureNode *)bucket[node_location[id]];
+}
+
+void GraphShard::add_neighboor(uint64_t id, uint64_t dst_id, float weight) {
+  find_node(id)->add_edge(dst_id, weight);
+}
+
+Node *GraphShard::find_node(uint64_t id) {
+  auto iter = node_location.find(id);
+  return iter == node_location.end() ? nullptr : bucket[iter->second];
+}
+
+int32_t GraphTable::load(const std::string &path, const std::string &param) {
+  bool load_edge = (param[0] == 'e');
+  bool load_node = (param[0] == 'n');
+  if (load_edge) {
+    bool reverse_edge = (param[1] == '<');
+    return this->load_edges(path, reverse_edge);
+  }
+  if (load_node) {
+    std::string node_type = param.substr(1);
+    return this->load_nodes(path, node_type);
+  }
+  return 0;
+}
+
+int32_t GraphTable::get_nodes_ids_by_ranges(
+    std::vector<std::pair<int, int>> ranges, std::vector<uint64_t> &res) {
+  int start = 0, end, index = 0, total_size = 0;
+  res.clear();
+  std::vector<std::future<std::vector<uint64_t>>> tasks;
+  // std::string temp = "";
+  // for(int i = 0;i < shards.size();i++)
+  //   temp+= std::to_string((int)shards[i].get_size()) + " ";
+  // VLOG(0)<<"range distribution "<<temp;
+  for (int i = 0; i < shards.size() && index < ranges.size(); i++) {
+    end = total_size + shards[i].get_size();
+    start = total_size;
+    while (start < end && index < ranges.size()) {
+      if (ranges[index].second <= start)
+        index++;
+      else if (ranges[index].first >= end) {
+        break;
+      } else {
+        int first = std::max(ranges[index].first, start);
+        int second = std::min(ranges[index].second, end);
+        start = second;
+        first -= total_size;
+        second -= total_size;
+        // VLOG(0)<<" FIND RANGE "<<i<<" "<<first<<" "<<second;
+        tasks.push_back(_shards_task_pool[i % task_pool_size_]->enqueue(
+            [this, first, second, i]() -> std::vector<uint64_t> {
+              return shards[i].get_ids_by_range(first, second);
+            }));
+      }
+    }
+    total_size += shards[i].get_size();
+  }
+  for (int i = 0; i < tasks.size(); i++) {
+    auto vec = tasks[i].get();
+    for (auto &id : vec) {
+      res.push_back(id);
+      std::swap(res[rand() % res.size()], res[(int)res.size() - 1]);
+    }
+  }
+  return 0;
+}
+
+int32_t GraphTable::load_nodes(const std::string &path, std::string node_type) {
+  auto paths = paddle::string::split_string<std::string>(path, ";");
+  int64_t count = 0;
+  int64_t valid_count = 0;
+  for (auto path : paths) {
+    std::ifstream file(path);
+    std::string line;
+    while (std::getline(file, line)) {
+      count++;
+      auto values = paddle::string::split_string<std::string>(line, "\t");
+      if (values.size() < 2) continue;
+      auto id = std::stoull(values[1]);
+
+      size_t shard_id = id % shard_num;
+      if (shard_id >= shard_end || shard_id < shard_start) {
+        VLOG(4) << "will not load " << id << " from " << path
+                << ", please check id distribution";
+        continue;
+      }
+
+      if (count % 1000000 == 0) {
+        VLOG(0) << count << " nodes are loaded from filepath";
+      }
+
+      std::string nt = values[0];
+      if (nt != node_type) {
+        continue;
+      }
+
+      size_t index = shard_id - shard_start;
+
+      auto node = shards[index].add_feature_node(id);
+
+      node->set_feature_size(feat_name.size());
+
+      for (size_t slice = 2; slice < values.size(); slice++) {
+        auto feat = this->parse_feature(values[slice]);
+        if (feat.first >= 0) {
+          node->set_feature(feat.first, feat.second);
+        } else {
+          VLOG(4) << "Node feature:  " << values[slice]
+                  << " not in feature_map.";
+        }
+      }
+      valid_count++;
+    }
+  }
+
+  VLOG(0) << valid_count << "/" << count << " nodes in type " << node_type
+          << " are loaded successfully in " << path;
+  return 0;
+}
+
+int32_t GraphTable::load_edges(const std::string &path, bool reverse_edge) {
+  auto paths = paddle::string::split_string<std::string>(path, ";");
+  int count = 0;
+  std::string sample_type = "random";
+  bool is_weighted = false;
+  int valid_count = 0;
+
+  for (auto path : paths) {
+    std::ifstream file(path);
+    std::string line;
+    while (std::getline(file, line)) {
+      auto values = paddle::string::split_string<std::string>(line, "\t");
+      count++;
+      if (values.size() < 2) continue;
+      auto src_id = std::stoull(values[0]);
+      auto dst_id = std::stoull(values[1]);
+      if (reverse_edge) {
+        std::swap(src_id, dst_id);
+      }
+      float weight = 1;
+      if (values.size() == 3) {
+        weight = std::stof(values[2]);
+        sample_type = "weighted";
+        is_weighted = true;
+      }
+
+      size_t src_shard_id = src_id % shard_num;
+
+      if (src_shard_id >= shard_end || src_shard_id < shard_start) {
+        VLOG(4) << "will not load " << src_id << " from " << path
+                << ", please check id distribution";
+        continue;
+      }
+      if (count % 1000000 == 0) {
+        VLOG(0) << count << " edges are loaded from filepath";
+      }
+
+      size_t index = src_shard_id - shard_start;
+      shards[index].add_graph_node(src_id)->build_edges(is_weighted);
+      shards[index].add_neighboor(src_id, dst_id, weight);
+      valid_count++;
+    }
+  }
+  VLOG(0) << valid_count << "/" << count << " edges are loaded successfully in "
+          << path;
+
+  // Build Sampler j
+
+  for (auto &shard : shards) {
+    auto bucket = shard.get_bucket();
+    for (int i = 0; i < bucket.size(); i++) {
+      bucket[i]->build_sampler(sample_type);
+    }
+  }
+  return 0;
+}
+
+Node *GraphTable::find_node(uint64_t id) {
+  size_t shard_id = id % shard_num;
+  if (shard_id >= shard_end || shard_id < shard_start) {
+    return nullptr;
+  }
+  size_t index = shard_id - shard_start;
+  Node *node = shards[index].find_node(id);
+  return node;
+}
+uint32_t GraphTable::get_thread_pool_index(uint64_t node_id) {
+  return node_id % shard_num % shard_num_per_table % task_pool_size_;
+}
+int32_t GraphTable::random_sample_nodes(int sample_size,
+                                        std::unique_ptr<char[]> &buffer,
+                                        int &actual_size) {
+  bool need_feature = false;
+  int total_size = 0;
+  for (int i = 0; i < shards.size(); i++) {
+    total_size += shards[i].get_size();
+  }
+  if (sample_size > total_size) sample_size = total_size;
+  int range_num = random_sample_nodes_ranges;
+  if (range_num > sample_size) range_num = sample_size;
+  if (sample_size == 0 || range_num == 0) return 0;
+  std::vector<int> ranges_len, ranges_pos;
+  int remain = sample_size, last_pos = -1, num;
+  std::set<int> separator_set;
+  for (int i = 0; i < range_num - 1; i++) {
+    while (separator_set.find(num = rand() % (sample_size - 1)) !=
+           separator_set.end())
+      ;
+    separator_set.insert(num);
+  }
+  for (auto p : separator_set) {
+    ranges_len.push_back(p - last_pos);
+    last_pos = p;
+  }
+  ranges_len.push_back(sample_size - 1 - last_pos);
+  remain = total_size - sample_size + range_num;
+  separator_set.clear();
+  for (int i = 0; i < range_num; i++) {
+    while (separator_set.find(num = rand() % remain) != separator_set.end())
+      ;
+    separator_set.insert(num);
+  }
+  int used = 0, index = 0;
+  last_pos = -1;
+  for (auto p : separator_set) {
+    used += p - last_pos - 1;
+    last_pos = p;
+    ranges_pos.push_back(used);
+    used += ranges_len[index++];
+  }
+  std::vector<std::pair<int, int>> first_half, second_half;
+  int start_index = rand() % total_size;
+  for (int i = 0; i < ranges_len.size() && i < ranges_pos.size(); i++) {
+    if (ranges_pos[i] + ranges_len[i] - 1 + start_index < total_size)
+      first_half.push_back({ranges_pos[i] + start_index,
+                            ranges_pos[i] + ranges_len[i] + start_index});
+    else if (ranges_pos[i] + start_index >= total_size) {
+      second_half.push_back(
+          {ranges_pos[i] + start_index - total_size,
+           ranges_pos[i] + ranges_len[i] + start_index - total_size});
+    } else {
+      first_half.push_back({ranges_pos[i] + start_index, total_size});
+      second_half.push_back(
+          {0, ranges_pos[i] + ranges_len[i] + start_index - total_size});
+    }
+  }
+  for (auto &pair : first_half) second_half.push_back(pair);
+  std::vector<uint64_t> res;
+  get_nodes_ids_by_ranges(second_half, res);
+  actual_size = res.size() * sizeof(uint64_t);
+  buffer.reset(new char[actual_size]);
+  char *pointer = buffer.get();
+  memcpy(pointer, res.data(), actual_size);
+  return 0;
+}
+int32_t GraphTable::random_sample_neighboors(
+    uint64_t *node_ids, int sample_size,
+    std::vector<std::unique_ptr<char[]>> &buffers,
+    std::vector<int> &actual_sizes) {
+  size_t node_num = buffers.size();
+  std::vector<std::future<int>> tasks;
+  for (size_t idx = 0; idx < node_num; ++idx) {
+    uint64_t &node_id = node_ids[idx];
+    std::unique_ptr<char[]> &buffer = buffers[idx];
+    int &actual_size = actual_sizes[idx];
+    tasks.push_back(_shards_task_pool[get_thread_pool_index(node_id)]->enqueue(
+        [&]() -> int {
+          Node *node = find_node(node_id);
+
+          if (node == nullptr) {
+            actual_size = 0;
+            return 0;
+          }
+          std::vector<int> res = node->sample_k(sample_size);
+          actual_size = res.size() * (Node::id_size + Node::weight_size);
+          int offset = 0;
+          uint64_t id;
+          float weight;
+          char *buffer_addr = new char[actual_size];
+          buffer.reset(buffer_addr);
+          for (int &x : res) {
+            id = node->get_neighbor_id(x);
+            weight = node->get_neighbor_weight(x);
+            memcpy(buffer_addr + offset, &id, Node::id_size);
+            offset += Node::id_size;
+            memcpy(buffer_addr + offset, &weight, Node::weight_size);
+            offset += Node::weight_size;
+          }
+          return 0;
+        }));
+  }
+  for (size_t idx = 0; idx < node_num; ++idx) {
+    tasks[idx].get();
+  }
+  return 0;
+}
+
+int32_t GraphTable::get_node_feat(const std::vector<uint64_t> &node_ids,
+                                  const std::vector<std::string> &feature_names,
+                                  std::vector<std::vector<std::string>> &res) {
+  size_t node_num = node_ids.size();
+  std::vector<std::future<int>> tasks;
+  for (size_t idx = 0; idx < node_num; ++idx) {
+    uint64_t node_id = node_ids[idx];
+    tasks.push_back(_shards_task_pool[get_thread_pool_index(node_id)]->enqueue(
+        [&, idx, node_id]() -> int {
+          Node *node = find_node(node_id);
+
+          if (node == nullptr) {
+            return 0;
+          }
+          for (int feat_idx = 0; feat_idx < feature_names.size(); ++feat_idx) {
+            const std::string &feature_name = feature_names[feat_idx];
+            if (feat_id_map.find(feature_name) != feat_id_map.end()) {
+              // res[feat_idx][idx] =
+              // node->get_feature(feat_id_map[feature_name]);
+              auto feat = node->get_feature(feat_id_map[feature_name]);
+              res[feat_idx][idx] = feat;
+            }
+          }
+          return 0;
+        }));
+  }
+  for (size_t idx = 0; idx < node_num; ++idx) {
+    tasks[idx].get();
+  }
+  return 0;
+}
+
+std::pair<int32_t, std::string> GraphTable::parse_feature(
+    std::string feat_str) {
+  // Return (feat_id, btyes) if name are in this->feat_name, else return (-1,
+  // "")
+  auto fields = paddle::string::split_string<std::string>(feat_str, " ");
+  if (this->feat_id_map.count(fields[0])) {
+    int32_t id = this->feat_id_map[fields[0]];
+    std::string dtype = this->feat_dtype[id];
+    int32_t shape = this->feat_shape[id];
+    std::vector<std::string> values(fields.begin() + 1, fields.end());
+    if (dtype == "feasign") {
+      return std::make_pair<int32_t, std::string>(
+          int32_t(id), paddle::string::join_strings(values, ' '));
+    } else if (dtype == "string") {
+      return std::make_pair<int32_t, std::string>(
+          int32_t(id), paddle::string::join_strings(values, ' '));
+    } else if (dtype == "float32") {
+      return std::make_pair<int32_t, std::string>(
+          int32_t(id), FeatureNode::parse_value_to_bytes<float>(values));
+    } else if (dtype == "float64") {
+      return std::make_pair<int32_t, std::string>(
+          int32_t(id), FeatureNode::parse_value_to_bytes<double>(values));
+    } else if (dtype == "int32") {
+      return std::make_pair<int32_t, std::string>(
+          int32_t(id), FeatureNode::parse_value_to_bytes<int32_t>(values));
+    } else if (dtype == "int64") {
+      return std::make_pair<int32_t, std::string>(
+          int32_t(id), FeatureNode::parse_value_to_bytes<int64_t>(values));
+    }
+  }
+  return std::make_pair<int32_t, std::string>(-1, "");
+}
+
+int32_t GraphTable::pull_graph_list(int start, int total_size,
+                                    std::unique_ptr<char[]> &buffer,
+                                    int &actual_size, bool need_feature,
+                                    int step) {
+  if (start < 0) start = 0;
+  int size = 0, cur_size;
+  std::vector<std::future<std::vector<Node *>>> tasks;
+  for (size_t i = 0; i < shards.size() && total_size > 0; i++) {
+    cur_size = shards[i].get_size();
+    if (size + cur_size <= start) {
+      size += cur_size;
+      continue;
+    }
+    int count = std::min(1 + (size + cur_size - start - 1) / step, total_size);
+    int end = start + (count - 1) * step + 1;
+    tasks.push_back(_shards_task_pool[i % task_pool_size_]->enqueue(
+        [this, i, start, end, step, size]() -> std::vector<Node *> {
+
+          return this->shards[i].get_batch(start - size, end - size, step);
+        }));
+    start += count * step;
+    total_size -= count;
+    size += cur_size;
+  }
+  for (size_t i = 0; i < tasks.size(); ++i) {
+    tasks[i].wait();
+  }
+  size = 0;
+  std::vector<std::vector<Node *>> res;
+  for (size_t i = 0; i < tasks.size(); i++) {
+    res.push_back(tasks[i].get());
+    for (size_t j = 0; j < res.back().size(); j++) {
+      size += res.back()[j]->get_size(need_feature);
+    }
+  }
+  char *buffer_addr = new char[size];
+  buffer.reset(buffer_addr);
+  int index = 0;
+  for (size_t i = 0; i < res.size(); i++) {
+    for (size_t j = 0; j < res[i].size(); j++) {
+      res[i][j]->to_buffer(buffer_addr + index, need_feature);
+      index += res[i][j]->get_size(need_feature);
+    }
+  }
+  actual_size = size;
+  return 0;
+}
+int32_t GraphTable::initialize() {
+  _shards_task_pool.resize(task_pool_size_);
+  for (size_t i = 0; i < _shards_task_pool.size(); ++i) {
+    _shards_task_pool[i].reset(new ::ThreadPool(1));
+  }
+  server_num = _shard_num;
+  // VLOG(0) << "in init graph table server num = " << server_num;
+  /*
+  _shard_num is actually server number here
+  when a server initialize its tables, it sets tables' _shard_num to server_num,
+  and _shard_idx to server
+  rank
+  */
+  auto common = _config.common();
+
+  this->table_name = common.table_name();
+  this->table_type = common.name();
+  VLOG(0) << " init graph table type " << this->table_type << " table name "
+          << this->table_name;
+  int feat_conf_size = static_cast<int>(common.attributes().size());
+  for (int i = 0; i < feat_conf_size; i++) {
+    auto &f_name = common.attributes()[i];
+    auto &f_shape = common.dims()[i];
+    auto &f_dtype = common.params()[i];
+    this->feat_name.push_back(f_name);
+    this->feat_shape.push_back(f_shape);
+    this->feat_dtype.push_back(f_dtype);
+    this->feat_id_map[f_name] = i;
+    VLOG(0) << "init graph table feat conf name:" << f_name
+            << " shape:" << f_shape << " dtype:" << f_dtype;
+  }
+
+  shard_num = _config.shard_num();
+  VLOG(0) << "in init graph table shard num = " << shard_num << " shard_idx"
+          << _shard_idx;
+  shard_num_per_table = sparse_local_shard_num(shard_num, server_num);
+  shard_start = _shard_idx * shard_num_per_table;
+  shard_end = shard_start + shard_num_per_table;
+  VLOG(0) << "in init graph table shard idx = " << _shard_idx << " shard_start "
+          << shard_start << " shard_end " << shard_end;
+  // shards.resize(shard_num_per_table);
+  shards = std::vector<GraphShard>(shard_num_per_table, GraphShard(shard_num));
+  return 0;
+}
+}
+};

paddle/fluid/distributed/table/common_graph_table.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 <ThreadPool.h>
+#include <assert.h>
+#include <pthread.h>
+#include <list>
+#include <memory>
+#include <mutex>  // NOLINT
+#include <string>
+#include <unordered_map>
+#include <utility>
+#include <vector>
+#include "paddle/fluid/distributed/table/accessor.h"
+#include "paddle/fluid/distributed/table/common_table.h"
+#include "paddle/fluid/distributed/table/graph_node.h"
+#include "paddle/fluid/framework/rw_lock.h"
+#include "paddle/fluid/string/string_helper.h"
+namespace paddle {
+namespace distributed {
+class GraphShard {
+ public:
+  // static int bucket_low_bound;
+  // static int gcd(int s, int t) {
+  //   if (s % t == 0) return t;
+  //   return gcd(t, s % t);
+  // }
+  size_t get_size();
+  GraphShard() {}
+  GraphShard(int shard_num) {
+    this->shard_num = shard_num;
+    // bucket_size = init_bucket_size(shard_num);
+    // bucket.resize(bucket_size);
+  }
+  std::vector<Node *> &get_bucket() { return bucket; }
+  std::vector<Node *> get_batch(int start, int end, int step);
+  // int init_bucket_size(int shard_num) {
+  //   for (int i = bucket_low_bound;; i++) {
+  //     if (gcd(i, shard_num) == 1) return i;
+  //   }
+  //   return -1;
+  // }
+  std::vector<uint64_t> get_ids_by_range(int start, int end) {
+    std::vector<uint64_t> res;
+    for (int i = start; i < end && i < bucket.size(); i++) {
+      res.push_back(bucket[i]->get_id());
+    }
+    return res;
+  }
+  GraphNode *add_graph_node(uint64_t id);
+  FeatureNode *add_feature_node(uint64_t id);
+  Node *find_node(uint64_t id);
+  void add_neighboor(uint64_t id, uint64_t dst_id, float weight);
+  // std::unordered_map<uint64_t, std::list<GraphNode *>::iterator>
+  std::unordered_map<uint64_t, int> get_node_location() {
+    return node_location;
+  }
+
+ private:
+  std::unordered_map<uint64_t, int> node_location;
+  int shard_num;
+  std::vector<Node *> bucket;
+};
+class GraphTable : public SparseTable {
+ public:
+  GraphTable() {}
+  virtual ~GraphTable() {}
+  virtual int32_t pull_graph_list(int start, int size,
+                                  std::unique_ptr<char[]> &buffer,
+                                  int &actual_size, bool need_feature,
+                                  int step);
+
+  virtual int32_t random_sample_neighboors(
+      uint64_t *node_ids, int sample_size,
+      std::vector<std::unique_ptr<char[]>> &buffers,
+      std::vector<int> &actual_sizes);
+
+  int32_t random_sample_nodes(int sample_size, std::unique_ptr<char[]> &buffers,
+                              int &actual_sizes);
+
+  virtual int32_t get_nodes_ids_by_ranges(
+      std::vector<std::pair<int, int>> ranges, std::vector<uint64_t> &res);
+  virtual int32_t initialize();
+
+  int32_t load(const std::string &path, const std::string &param);
+
+  int32_t load_edges(const std::string &path, bool reverse);
+
+  int32_t load_nodes(const std::string &path, std::string node_type);
+
+  Node *find_node(uint64_t id);
+
+  virtual int32_t pull_sparse(float *values, const uint64_t *keys, size_t num) {
+    return 0;
+  }
+  virtual int32_t push_sparse(const uint64_t *keys, const float *values,
+                              size_t num) {
+    return 0;
+  }
+  virtual void clear() {}
+  virtual int32_t flush() { return 0; }
+  virtual int32_t shrink(const std::string &param) { return 0; }
+  //指定保存路径
+  virtual int32_t save(const std::string &path, const std::string &converter) {
+    return 0;
+  }
+  virtual int32_t initialize_shard() { return 0; }
+  virtual uint32_t get_thread_pool_index(uint64_t node_id);
+  virtual std::pair<int32_t, std::string> parse_feature(std::string feat_str);
+
+  virtual int32_t get_node_feat(const std::vector<uint64_t> &node_ids,
+                                const std::vector<std::string> &feature_names,
+                                std::vector<std::vector<std::string>> &res);
+
+ protected:
+  std::vector<GraphShard> shards;
+  size_t shard_start, shard_end, server_num, shard_num_per_table, shard_num;
+  const int task_pool_size_ = 11;
+  const int random_sample_nodes_ranges = 3;
+
+  std::vector<std::string> feat_name;
+  std::vector<std::string> feat_dtype;
+  std::vector<int32_t> feat_shape;
+  std::unordered_map<std::string, int32_t> feat_id_map;
+  std::string table_name;
+  std::string table_type;
+
+  std::vector<std::shared_ptr<::ThreadPool>> _shards_task_pool;
+};
+}
+};

paddle/fluid/distributed/table/graph_edge.cc

+// 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.
+
+#include "paddle/fluid/distributed/table/graph_edge.h"
+#include <cstring>
+namespace paddle {
+namespace distributed {
+
+void GraphEdgeBlob::add_edge(uint64_t id, float weight = 1) {
+  id_arr.push_back(id);
+}
+
+void WeightedGraphEdgeBlob::add_edge(uint64_t id, float weight = 1) {
+  id_arr.push_back(id);
+  weight_arr.push_back(weight);
+}
+}
+}

paddle/fluid/distributed/table/graph_edge.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 <cstddef>
+#include <cstdint>
+#include <vector>
+namespace paddle {
+namespace distributed {
+
+class GraphEdgeBlob {
+ public:
+  GraphEdgeBlob() {}
+  virtual ~GraphEdgeBlob() {}
+  size_t size() { return id_arr.size(); }
+  virtual void add_edge(uint64_t id, float weight);
+  uint64_t get_id(int idx) { return id_arr[idx]; }
+  virtual float get_weight(int idx) { return 1; }
+
+ protected:
+  std::vector<uint64_t> id_arr;
+};
+
+class WeightedGraphEdgeBlob : public GraphEdgeBlob {
+ public:
+  WeightedGraphEdgeBlob() {}
+  virtual ~WeightedGraphEdgeBlob() {}
+  virtual void add_edge(uint64_t id, float weight);
+  virtual float get_weight(int idx) { return weight_arr[idx]; }
+
+ protected:
+  std::vector<float> weight_arr;
+};
+}
+}

paddle/fluid/distributed/table/graph_node.cc

+// 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.
+
+#include "paddle/fluid/distributed/table/graph_node.h"
+#include <cstring>
+namespace paddle {
+namespace distributed {
+
+GraphNode::~GraphNode() {
+  if (sampler != nullptr) {
+    delete sampler;
+    sampler = nullptr;
+  }
+  if (edges != nullptr) {
+    delete edges;
+    edges = nullptr;
+  }
+}
+
+int Node::weight_size = sizeof(float);
+int Node::id_size = sizeof(uint64_t);
+int Node::int_size = sizeof(int);
+
+int Node::get_size(bool need_feature) { return id_size + int_size; }
+
+void Node::to_buffer(char* buffer, bool need_feature) {
+  memcpy(buffer, &id, id_size);
+  buffer += id_size;
+
+  int feat_num = 0;
+  memcpy(buffer, &feat_num, sizeof(int));
+}
+
+void Node::recover_from_buffer(char* buffer) { memcpy(&id, buffer, id_size); }
+
+int FeatureNode::get_size(bool need_feature) {
+  int size = id_size + int_size;  // id, feat_num
+  if (need_feature) {
+    size += feature.size() * int_size;
+    for (const std::string& fea : feature) {
+      size += fea.size();
+    }
+  }
+  return size;
+}
+
+void GraphNode::build_edges(bool is_weighted) {
+  if (edges == nullptr) {
+    if (is_weighted == true) {
+      edges = new WeightedGraphEdgeBlob();
+    } else {
+      edges = new GraphEdgeBlob();
+    }
+  }
+}
+void GraphNode::build_sampler(std::string sample_type) {
+  if (sample_type == "random") {
+    sampler = new RandomSampler();
+  } else if (sample_type == "weighted") {
+    sampler = new WeightedSampler();
+  }
+  sampler->build(edges);
+}
+void FeatureNode::to_buffer(char* buffer, bool need_feature) {
+  memcpy(buffer, &id, id_size);
+  buffer += id_size;
+
+  int feat_num = 0;
+  int feat_len;
+  if (need_feature) {
+    feat_num += feature.size();
+    memcpy(buffer, &feat_num, sizeof(int));
+    buffer += sizeof(int);
+    for (int i = 0; i < feat_num; ++i) {
+      feat_len = feature[i].size();
+      memcpy(buffer, &feat_len, sizeof(int));
+      buffer += sizeof(int);
+      memcpy(buffer, feature[i].c_str(), feature[i].size());
+      buffer += feature[i].size();
+    }
+  } else {
+    memcpy(buffer, &feat_num, sizeof(int));
+  }
+}
+void FeatureNode::recover_from_buffer(char* buffer) {
+  int feat_num, feat_len;
+  memcpy(&id, buffer, id_size);
+  buffer += id_size;
+
+  memcpy(&feat_num, buffer, sizeof(int));
+  buffer += sizeof(int);
+
+  feature.clear();
+  for (int i = 0; i < feat_num; ++i) {
+    memcpy(&feat_len, buffer, sizeof(int));
+    buffer += sizeof(int);
+
+    char str[feat_len + 1];
+    memcpy(str, buffer, feat_len);
+    buffer += feat_len;
+    str[feat_len] = '\0';
+    feature.push_back(std::string(str));
+  }
+}
+}
+}

paddle/fluid/distributed/table/graph_node.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 <cstring>
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include "paddle/fluid/distributed/table/graph_weighted_sampler.h"
+namespace paddle {
+namespace distributed {
+
+class Node {
+ public:
+  Node() {}
+  Node(uint64_t id) : id(id) {}
+  virtual ~Node() {}
+  static int id_size, int_size, weight_size;
+  uint64_t get_id() { return id; }
+  void set_id(uint64_t id) { this->id = id; }
+
+  virtual void build_edges(bool is_weighted) {}
+  virtual void build_sampler(std::string sample_type) {}
+  virtual void add_edge(uint64_t id, float weight) {}
+  virtual std::vector<int> sample_k(int k) { return std::vector<int>(); }
+  virtual uint64_t get_neighbor_id(int idx) { return 0; }
+  virtual float get_neighbor_weight(int idx) { return 1.; }
+
+  virtual int get_size(bool need_feature);
+  virtual void to_buffer(char *buffer, bool need_feature);
+  virtual void recover_from_buffer(char *buffer);
+  virtual std::string get_feature(int idx) { return std::string(""); }
+  virtual void set_feature(int idx, std::string str) {}
+  virtual void set_feature_size(int size) {}
+  virtual int get_feature_size() { return 0; }
+
+ protected:
+  uint64_t id;
+};
+
+class GraphNode : public Node {
+ public:
+  GraphNode() : Node(), sampler(nullptr), edges(nullptr) {}
+  GraphNode(uint64_t id) : Node(id), sampler(nullptr), edges(nullptr) {}
+  virtual ~GraphNode();
+  virtual void build_edges(bool is_weighted);
+  virtual void build_sampler(std::string sample_type);
+  virtual void add_edge(uint64_t id, float weight) {
+    edges->add_edge(id, weight);
+  }
+  virtual std::vector<int> sample_k(int k) { return sampler->sample_k(k); }
+  virtual uint64_t get_neighbor_id(int idx) { return edges->get_id(idx); }
+  virtual float get_neighbor_weight(int idx) { return edges->get_weight(idx); }
+
+ protected:
+  Sampler *sampler;
+  GraphEdgeBlob *edges;
+};
+
+class FeatureNode : public Node {
+ public:
+  FeatureNode() : Node() {}
+  FeatureNode(uint64_t id) : Node(id) {}
+  virtual ~FeatureNode() {}
+  virtual int get_size(bool need_feature);
+  virtual void to_buffer(char *buffer, bool need_feature);
+  virtual void recover_from_buffer(char *buffer);
+  virtual std::string get_feature(int idx) {
+    if (idx < (int)this->feature.size()) {
+      return this->feature[idx];
+    } else {
+      return std::string("");
+    }
+  }
+
+  virtual void set_feature(int idx, std::string str) {
+    if (idx >= (int)this->feature.size()) {
+      this->feature.resize(idx + 1);
+    }
+    this->feature[idx] = str;
+  }
+  virtual void set_feature_size(int size) { this->feature.resize(size); }
+  virtual int get_feature_size() { return this->feature.size(); }
+
+  template <typename T>
+  static std::string parse_value_to_bytes(std::vector<std::string> feat_str) {
+    T v;
+    size_t Tsize = sizeof(T) * feat_str.size();
+    char buffer[Tsize];
+    for (size_t i = 0; i < feat_str.size(); i++) {
+      std::stringstream ss(feat_str[i]);
+      ss >> v;
+      std::memcpy(buffer + sizeof(T) * i, (char *)&v, sizeof(T));
+    }
+    return std::string(buffer, Tsize);
+  }
+
+  template <typename T>
+  static std::vector<T> parse_bytes_to_array(std::string feat_str) {
+    T v;
+    std::vector<T> out;
+    size_t start = 0;
+    const char *buffer = feat_str.data();
+    while (start < feat_str.size()) {
+      std::memcpy((char *)&v, buffer + start, sizeof(T));
+      start += sizeof(T);
+      out.push_back(v);
+    }
+    return out;
+  }
+
+ protected:
+  std::vector<std::string> feature;
+};
+}
+}

paddle/fluid/distributed/table/graph_weighted_sampler.cc

+// 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.
+
+#include "paddle/fluid/distributed/table/graph_weighted_sampler.h"
+#include <iostream>
+#include <unordered_map>
+namespace paddle {
+namespace distributed {
+
+void RandomSampler::build(GraphEdgeBlob *edges) { this->edges = edges; }
+
+std::vector<int> RandomSampler::sample_k(int k) {
+  int n = edges->size();
+  if (k > n) {
+    k = n;
+  }
+  struct timespec tn;
+  clock_gettime(CLOCK_REALTIME, &tn);
+  srand(tn.tv_nsec);
+  std::vector<int> sample_result;
+  std::unordered_map<int, int> replace_map;
+  while (k--) {
+    int rand_int = rand() % n;
+    auto iter = replace_map.find(rand_int);
+    if (iter == replace_map.end()) {
+      sample_result.push_back(rand_int);
+    } else {
+      sample_result.push_back(iter->second);
+    }
+
+    iter = replace_map.find(n - 1);
+    if (iter == replace_map.end()) {
+      replace_map[rand_int] = n - 1;
+    } else {
+      replace_map[rand_int] = iter->second;
+    }
+    --n;
+  }
+  return sample_result;
+}
+
+WeightedSampler::WeightedSampler() {
+  left = nullptr;
+  right = nullptr;
+  edges = nullptr;
+}
+
+WeightedSampler::~WeightedSampler() {
+  if (left != nullptr) {
+    delete left;
+    left = nullptr;
+  }
+  if (right != nullptr) {
+    delete right;
+    right = nullptr;
+  }
+}
+
+void WeightedSampler::build(GraphEdgeBlob *edges) {
+  if (left != nullptr) {
+    delete left;
+    left = nullptr;
+  }
+  if (right != nullptr) {
+    delete right;
+    right = nullptr;
+  }
+  return build_one((WeightedGraphEdgeBlob *)edges, 0, edges->size());
+}
+
+void WeightedSampler::build_one(WeightedGraphEdgeBlob *edges, int start,
+                                int end) {
+  count = 0;
+  this->edges = edges;
+  if (start + 1 == end) {
+    left = right = nullptr;
+    idx = start;
+    count = 1;
+    weight = edges->get_weight(idx);
+
+  } else {
+    left = new WeightedSampler();
+    right = new WeightedSampler();
+    left->build_one(edges, start, start + (end - start) / 2);
+    right->build_one(edges, start + (end - start) / 2, end);
+    weight = left->weight + right->weight;
+    count = left->count + right->count;
+  }
+}
+std::vector<int> WeightedSampler::sample_k(int k) {
+  if (k > count) {
+    k = count;
+  }
+  std::vector<int> sample_result;
+  float subtract;
+  std::unordered_map<WeightedSampler *, float> subtract_weight_map;
+  std::unordered_map<WeightedSampler *, int> subtract_count_map;
+  struct timespec tn;
+  clock_gettime(CLOCK_REALTIME, &tn);
+  srand(tn.tv_nsec);
+  while (k--) {
+    float query_weight = rand() % 100000 / 100000.0;
+    query_weight *= weight - subtract_weight_map[this];
+    sample_result.push_back(sample(query_weight, subtract_weight_map,
+                                   subtract_count_map, subtract));
+  }
+  return sample_result;
+}
+
+int WeightedSampler::sample(
+    float query_weight,
+    std::unordered_map<WeightedSampler *, float> &subtract_weight_map,
+    std::unordered_map<WeightedSampler *, int> &subtract_count_map,
+    float &subtract) {
+  if (left == nullptr) {
+    subtract_weight_map[this] = weight;
+    subtract = weight;
+    subtract_count_map[this] = 1;
+    return idx;
+  }
+  int left_count = left->count - subtract_count_map[left];
+  int right_count = right->count - subtract_count_map[right];
+  float left_subtract = subtract_weight_map[left];
+  int return_idx;
+  if (right_count == 0 ||
+      left_count > 0 && left->weight - left_subtract >= query_weight) {
+    return_idx = left->sample(query_weight, subtract_weight_map,
+                              subtract_count_map, subtract);
+  } else {
+    return_idx =
+        right->sample(query_weight - (left->weight - left_subtract),
+                      subtract_weight_map, subtract_count_map, subtract);
+  }
+  subtract_weight_map[this] += subtract;
+  subtract_count_map[this]++;
+  return return_idx;
+}
+}
+}

paddle/fluid/distributed/table/graph_weighted_sampler.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 <ctime>
+#include <unordered_map>
+#include <vector>
+#include "paddle/fluid/distributed/table/graph_edge.h"
+namespace paddle {
+namespace distributed {
+
+class Sampler {
+ public:
+  virtual ~Sampler() {}
+  virtual void build(GraphEdgeBlob *edges) = 0;
+  virtual std::vector<int> sample_k(int k) = 0;
+};
+
+class RandomSampler : public Sampler {
+ public:
+  virtual ~RandomSampler() {}
+  virtual void build(GraphEdgeBlob *edges);
+  virtual std::vector<int> sample_k(int k);
+  GraphEdgeBlob *edges;
+};
+
+class WeightedSampler : public Sampler {
+ public:
+  WeightedSampler();
+  virtual ~WeightedSampler();
+  WeightedSampler *left, *right;
+  float weight;
+  int count;
+  int idx;
+  GraphEdgeBlob *edges;
+  virtual void build(GraphEdgeBlob *edges);
+  virtual void build_one(WeightedGraphEdgeBlob *edges, int start, int end);
+  virtual std::vector<int> sample_k(int k);
+
+ private:
+  int sample(float query_weight,
+             std::unordered_map<WeightedSampler *, float> &subtract_weight_map,
+             std::unordered_map<WeightedSampler *, int> &subtract_count_map,
+             float &subtract);
+};
+}
+}

paddle/fluid/distributed/table/table.cc

@@ -18,6 +18,7 @@
 #include "paddle/fluid/distributed/common/registerer.h"
 
 #include "paddle/fluid/distributed/table/common_dense_table.h"
+#include "paddle/fluid/distributed/table/common_graph_table.h"
 #include "paddle/fluid/distributed/table/common_sparse_table.h"
 #include "paddle/fluid/distributed/table/sparse_geo_table.h"
 #include "paddle/fluid/distributed/table/tensor_accessor.h"
@@ -25,7 +26,7 @@
 
 namespace paddle {
 namespace distributed {
-
+REGISTER_PSCORE_CLASS(Table, GraphTable);
 REGISTER_PSCORE_CLASS(Table, CommonDenseTable);
 REGISTER_PSCORE_CLASS(Table, CommonSparseTable);
 REGISTER_PSCORE_CLASS(Table, SparseGeoTable);
@@ -75,5 +76,6 @@ int32_t Table::initialize_accessor() {
   _value_accesor.reset(accessor);
   return 0;
 }
+
 }  // namespace distributed
 }  // namespace paddle

paddle/fluid/distributed/table/table.h

@@ -21,6 +21,7 @@
 #include <string>
 #include <utility>
 #include "paddle/fluid/distributed/table/accessor.h"
+#include "paddle/fluid/distributed/table/graph_node.h"
 #include "paddle/fluid/framework/program_desc.h"
 #include "paddle/fluid/framework/scope.h"
 #include "paddle/fluid/platform/device_context.h"
@@ -86,6 +87,31 @@ class Table {
     return 0;
   }
 
+  // only for graph table
+  virtual int32_t pull_graph_list(int start, int total_size,
+                                  std::unique_ptr<char[]> &buffer,
+                                  int &actual_size, bool need_feature,
+                                  int step = 1) {
+    return 0;
+  }
+  // only for graph table
+  virtual int32_t random_sample_neighboors(
+      uint64_t *node_ids, int sample_size,
+      std::vector<std::unique_ptr<char[]>> &buffers,
+      std::vector<int> &actual_sizes) {
+    return 0;
+  }
+
+  virtual int32_t random_sample_nodes(int sample_size,
+                                      std::unique_ptr<char[]> &buffers,
+                                      int &actual_sizes) {
+    return 0;
+  }
+  virtual int32_t get_node_feat(const std::vector<uint64_t> &node_ids,
+                                const std::vector<std::string> &feature_names,
+                                std::vector<std::vector<std::string>> &res) {
+    return 0;
+  }
   virtual int32_t pour() { return 0; }
 
   virtual void clear() = 0;
@@ -141,5 +167,6 @@ class TableManager {
   TableManager() {}
   ~TableManager() {}
 };
+
 }  // namespace distributed
 }  // namespace paddle

paddle/fluid/distributed/test/CMakeLists.txt

@@ -15,3 +15,6 @@ cc_test(brpc_service_sparse_sgd_test SRCS brpc_service_sparse_sgd_test.cc DEPS s
 
 set_source_files_properties(brpc_utils_test.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
 cc_test(brpc_utils_test SRCS brpc_utils_test.cc DEPS brpc_utils scope math_function ${COMMON_DEPS} ${RPC_DEPS})
+
+set_source_files_properties(graph_node_test.cc PROPERTIES COMPILE_FLAGS ${DISTRIBUTE_COMPILE_FLAGS})
+cc_test(graph_node_test SRCS graph_node_test.cc DEPS graph_py_service scope server client communicator ps_service boost table ps_framework_proto ${COMMON_DEPS})

paddle/fluid/inference/api/demo_ci/clean.sh

+# 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.
+
 set -x
 cd `dirname $0`
 rm -rf build/ data/

paddle/fluid/pybind/CMakeLists.txt

@@ -7,6 +7,10 @@ set(PYBIND_DEPS pybind python proto_desc memory executor fleet_wrapper box_wrapp
   analysis_predictor imperative_profiler imperative_flag save_load_util dlpack_tensor device_context
   gloo_wrapper infer_io_utils heter_wrapper generator op_version_registry ps_gpu_wrapper custom_operator)
 
+if (WITH_PSCORE)
+  set(PYBIND_DEPS ${PYBIND_DEPS} ps_service)
+  set(PYBIND_DEPS ${PYBIND_DEPS} graph_py_service)
+endif()
 if (WITH_GPU OR WITH_ROCM)
   set(PYBIND_DEPS ${PYBIND_DEPS} dynload_cuda)
   set(PYBIND_DEPS ${PYBIND_DEPS} cuda_device_guard)

paddle/fluid/pybind/fleet_py.cc

@@ -32,6 +32,8 @@ limitations under the License. */
 #include "paddle/fluid/distributed/fleet.h"
 #include "paddle/fluid/distributed/service/communicator.h"
 #include "paddle/fluid/distributed/service/env.h"
+#include "paddle/fluid/distributed/service/graph_brpc_client.h"
+#include "paddle/fluid/distributed/service/graph_py_service.h"
 #include "paddle/fluid/distributed/service/heter_client.h"
 
 namespace py = pybind11;
@@ -39,6 +41,11 @@ using paddle::distributed::CommContext;
 using paddle::distributed::Communicator;
 using paddle::distributed::FleetWrapper;
 using paddle::distributed::HeterClient;
+using paddle::distributed::GraphPyService;
+using paddle::distributed::GraphNode;
+using paddle::distributed::GraphPyServer;
+using paddle::distributed::GraphPyClient;
+using paddle::distributed::FeatureNode;
 
 namespace paddle {
 namespace pybind {
@@ -152,5 +159,58 @@ void BindHeterClient(py::module* m) {
       .def("stop", &HeterClient::Stop);
 }
 
+void BindGraphNode(py::module* m) {
+  py::class_<GraphNode>(*m, "GraphNode")
+      .def(py::init<>())
+      .def("get_id", &GraphNode::get_id)
+      .def("get_feature", &GraphNode::get_feature);
+}
+void BindGraphPyFeatureNode(py::module* m) {
+  py::class_<FeatureNode>(*m, "FeatureNode")
+      .def(py::init<>())
+      .def("get_id", &GraphNode::get_id)
+      .def("get_feature", &GraphNode::get_feature);
+}
+
+void BindGraphPyService(py::module* m) {
+  py::class_<GraphPyService>(*m, "GraphPyService").def(py::init<>());
+}
+
+void BindGraphPyServer(py::module* m) {
+  py::class_<GraphPyServer>(*m, "GraphPyServer")
+      .def(py::init<>())
+      .def("start_server", &GraphPyServer::start_server)
+      .def("set_up", &GraphPyServer::set_up)
+      .def("add_table_feat_conf", &GraphPyServer::add_table_feat_conf);
+}
+void BindGraphPyClient(py::module* m) {
+  py::class_<GraphPyClient>(*m, "GraphPyClient")
+      .def(py::init<>())
+      .def("load_edge_file", &GraphPyClient::load_edge_file)
+      .def("load_node_file", &GraphPyClient::load_node_file)
+      .def("set_up", &GraphPyClient::set_up)
+      .def("add_table_feat_conf", &GraphPyClient::add_table_feat_conf)
+      .def("pull_graph_list", &GraphPyClient::pull_graph_list)
+      .def("start_client", &GraphPyClient::start_client)
+      .def("batch_sample_neighboors", &GraphPyClient::batch_sample_neighboors)
+      .def("random_sample_nodes", &GraphPyClient::random_sample_nodes)
+      .def("stop_server", &GraphPyClient::stop_server)
+      .def("get_node_feat",
+           [](GraphPyClient& self, std::string node_type,
+              std::vector<uint64_t> node_ids,
+              std::vector<std::string> feature_names) {
+             auto feats =
+                 self.get_node_feat(node_type, node_ids, feature_names);
+             std::vector<std::vector<py::bytes>> bytes_feats(feats.size());
+             for (int i = 0; i < feats.size(); ++i) {
+               for (int j = 0; j < feats[i].size(); ++j) {
+                 bytes_feats[i].push_back(py::bytes(feats[i][j]));
+               }
+             }
+             return bytes_feats;
+           })
+      .def("bind_local_server", &GraphPyClient::bind_local_server);
+}
+
 }  // end namespace pybind
 }  // namespace paddle

paddle/fluid/pybind/fleet_py.h

@@ -27,6 +27,10 @@ void BindPSHost(py::module* m);
 void BindCommunicatorContext(py::module* m);
 void BindDistCommunicator(py::module* m);
 void BindHeterClient(py::module* m);
-
+void BindGraphNode(py::module* m);
+void BindGraphPyService(py::module* m);
+void BindGraphPyFeatureNode(py::module* m);
+void BindGraphPyServer(py::module* m);
+void BindGraphPyClient(py::module* m);
 }  // namespace pybind
 }  // namespace paddle

paddle/fluid/pybind/pybind.cc

@@ -2896,6 +2896,11 @@ All parameter, weight, gradient are variables in Paddle.
   BindCommunicatorContext(&m);
   BindDistCommunicator(&m);
   BindHeterClient(&m);
+  BindGraphPyFeatureNode(&m);
+  BindGraphNode(&m);
+  BindGraphPyService(&m);
+  BindGraphPyServer(&m);
+  BindGraphPyClient(&m);
 #endif
 }
 }  // namespace pybind

paddle/scripts/build_docker_images.sh

 #!/bin/sh
+
+# 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.
+
 set -xe
 
 REPO="${REPO:-paddlepaddle}"

paddle/scripts/docker/root/.scripts/git-completion.sh

 #!bash
+
+# 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.
+
 #
 # bash/zsh completion support for core Git.
 #

paddle/scripts/fast_install.sh

 #!/bin/bash
 
+# 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.
+
 ## purple to echo
 function purple(){
     echo -e "\033[35m$1\033[0m"

python/paddle/fluid/dataloader/fetcher.py

@@ -27,8 +27,8 @@ class _DatasetFetcher(object):
 
 class _IterableDatasetFetcher(_DatasetFetcher):
     def __init__(self, dataset, auto_collate_batch, collate_fn, drop_last):
-        super(_IterableDatasetFetcher, self).__init__(dataset, auto_collate_batch,
-                                              collate_fn, drop_last)
+        super(_IterableDatasetFetcher, self).__init__(
+            dataset, auto_collate_batch, collate_fn, drop_last)
         self.dataset_iter = iter(dataset)
 
     def fetch(self, batch_indices):
@@ -53,7 +53,8 @@ class _IterableDatasetFetcher(_DatasetFetcher):
 
 class _MapDatasetFetcher(_DatasetFetcher):
     def __init__(self, dataset, auto_collate_batch, collate_fn, drop_last):
-        super(_MapDatasetFetcher, self).__init__(dataset, auto_collate_batch, collate_fn, drop_last)
+        super(_MapDatasetFetcher, self).__init__(dataset, auto_collate_batch,
+                                                 collate_fn, drop_last)
 
     def fetch(self, batch_indices):
         if self.auto_collate_batch:

python/paddle/fluid/incubate/fleet/tests/cluster_train.sh

 #!/bin/bash
 
+# 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.
+
 # start pserver0
 python fleet_deep_ctr.py \
     --role pserver \

python/paddle/fluid/tests/unittests/ir/inference/test_squared_mat_sub_fuse_pass.py

@@ -40,9 +40,11 @@ class SquaredMatSubFusePassTest(InferencePassTest):
             matmul_ab_square = paddle.square(matmul_ab)
             matmul_square_ab = paddle.matmul(data_a_square, data_b_square)
 
-            scale = paddle.fluid.layers.fill_constant(shape=[1], value=0.5, dtype='float32')
+            scale = paddle.fluid.layers.fill_constant(
+                shape=[1], value=0.5, dtype='float32')
 
-            sub_val = paddle.fluid.layers.elementwise_sub(matmul_ab_square, matmul_square_ab)
+            sub_val = paddle.fluid.layers.elementwise_sub(matmul_ab_square,
+                                                          matmul_square_ab)
             squared_mat_sub_out = fluid.layers.elementwise_mul(sub_val, scale)
 
         self.feeds = {

python/paddle/fluid/tests/unittests/ir/inference/test_trt_matmul.py

@@ -25,19 +25,16 @@ class TensorRTMatMulDims2Test(InferencePassTest):
     def setUp(self):
         self.set_params()
         with fluid.program_guard(self.main_program, self.startup_program):
-            data = fluid.data(
-                name="data", shape=[24, 24], dtype="float32")
+            data = fluid.data(name="data", shape=[24, 24], dtype="float32")
             matmul_out = fluid.layers.matmul(
                 x=data,
                 y=data,
-                transpose_x = self.transpose_x,
-                transpose_y = self.transpose_y,
-                alpha = self.alpha)
+                transpose_x=self.transpose_x,
+                transpose_y=self.transpose_y,
+                alpha=self.alpha)
             out = fluid.layers.batch_norm(matmul_out, is_test=True)
 
-        self.feeds = {
-            "data": np.ones([24, 24]).astype("float32"),
-        }
+        self.feeds = {"data": np.ones([24, 24]).astype("float32"), }
         self.enable_trt = True
         self.trt_parameters = TensorRTMatMulDims2Test.TensorRTParam(
             1 << 30, 32, 0, AnalysisConfig.Precision.Float32, False, False)
@@ -65,14 +62,12 @@ class TensorRTMatMulTest(InferencePassTest):
             matmul_out = fluid.layers.matmul(
                 x=data,
                 y=data,
-                transpose_x = self.transpose_x,
-                transpose_y = self.transpose_y,
-                alpha = self.alpha)
+                transpose_x=self.transpose_x,
+                transpose_y=self.transpose_y,
+                alpha=self.alpha)
             out = fluid.layers.batch_norm(matmul_out, is_test=True)
 
-        self.feeds = {
-            "data": np.ones([1, 6, 24, 24]).astype("float32"),
-        }
+        self.feeds = {"data": np.ones([1, 6, 24, 24]).astype("float32"), }
         self.enable_trt = True
         self.trt_parameters = TensorRTMatMulTest.TensorRTParam(
             1 << 30, 32, 0, AnalysisConfig.Precision.Float32, False, False)

python/paddle/fluid/tests/unittests/parallel_test.sh

 #!/bin/bash
+
+# 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.
+
 unset https_proxy http_proxy
 export FLAGS_rpc_disable_reuse_port=1
 

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

@@ -27,8 +27,10 @@ def test_static_layer(place,
     prog = paddle.static.Program()
     startup_prog = paddle.static.Program()
     with paddle.static.program_guard(prog, startup_prog):
-        input = paddle.fluid.data(name='input', shape=input_np.shape, dtype='float64')
-        label = paddle.fluid.data(name='label', shape=label_np.shape, dtype='float64')
+        input = paddle.fluid.data(
+            name='input', shape=input_np.shape, dtype='float64')
+        label = paddle.fluid.data(
+            name='label', shape=label_np.shape, dtype='float64')
         if weight_np is not None:
             weight = paddle.fluid.data(
                 name='weight', shape=weight_np.shape, dtype='float64')
@@ -58,8 +60,10 @@ def test_static_functional(place,
     prog = paddle.static.Program()
     startup_prog = paddle.static.Program()
     with paddle.static.program_guard(prog, startup_prog):
-        input = paddle.fluid.data(name='input', shape=input_np.shape, dtype='float64')
-        label = paddle.fluid.data(name='label', shape=label_np.shape, dtype='float64')
+        input = paddle.fluid.data(
+            name='input', shape=input_np.shape, dtype='float64')
+        label = paddle.fluid.data(
+            name='label', shape=label_np.shape, dtype='float64')
         if weight_np is not None:
             weight = paddle.fluid.data(
                 name='weight', shape=weight_np.shape, dtype='float64')

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

@@ -48,8 +48,10 @@ def test_static(place,
     prog = paddle.static.Program()
     startup_prog = paddle.static.Program()
     with paddle.static.program_guard(prog, startup_prog):
-        logit = paddle.fluid.data(name='logit', shape=logit_np.shape, dtype='float64')
-        label = paddle.fluid.data(name='label', shape=label_np.shape, dtype='float64')
+        logit = paddle.fluid.data(
+            name='logit', shape=logit_np.shape, dtype='float64')
+        label = paddle.fluid.data(
+            name='label', shape=label_np.shape, dtype='float64')
         feed_dict = {"logit": logit_np, "label": label_np}
 
         pos_weight = None

python/paddle/fluid/tests/unittests/test_c_comm_init_op.sh

 #!/bin/bash
+
+# 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.
+
 set -e
 # use default values
 # FIXME: random fails on Unknown command lines -c (or -m).

python/paddle/fluid/tests/unittests/test_dist_fleet_ps10.py

@@ -23,7 +23,6 @@ import os
 
 paddle.enable_static()
 
-
 # For Net
 base_lr = 0.2
 emb_lr = base_lr * 3

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

@@ -170,7 +170,8 @@ class TestFlatten2OpError(unittest.TestCase):
             x2 = np.arange(image_shape[0] * image_shape[1] * image_shape[2] *
                            image_shape[3]).reshape(image_shape) / 100.
             x2 = x2.astype('float16')
-            x2_var = paddle.fluid.data(name='x2', shape=[3, 2, 4, 5], dtype='float16')
+            x2_var = paddle.fluid.data(
+                name='x2', shape=[3, 2, 4, 5], dtype='float16')
             paddle.flatten(x2_var)
 
         self.assertRaises(TypeError, test_type)

python/paddle/fluid/tests/unittests/test_l1_loss.py

@@ -44,8 +44,10 @@ class TestFunctionalL1Loss(unittest.TestCase):
         self.assertTrue(dy_result.shape, [10, 10, 5])
 
     def run_static(self, use_gpu=False):
-        input = paddle.fluid.data(name='input', shape=[10, 10, 5], dtype='float32')
-        label = paddle.fluid.data(name='label', shape=[10, 10, 5], dtype='float32')
+        input = paddle.fluid.data(
+            name='input', shape=[10, 10, 5], dtype='float32')
+        label = paddle.fluid.data(
+            name='label', shape=[10, 10, 5], dtype='float32')
         result0 = paddle.nn.functional.l1_loss(input, label)
         result1 = paddle.nn.functional.l1_loss(input, label, reduction='sum')
         result2 = paddle.nn.functional.l1_loss(input, label, reduction='none')
@@ -127,8 +129,10 @@ class TestClassL1Loss(unittest.TestCase):
         self.assertTrue(dy_result.shape, [10, 10, 5])
 
     def run_static(self, use_gpu=False):
-        input = paddle.fluid.data(name='input', shape=[10, 10, 5], dtype='float32')
-        label = paddle.fluid.data(name='label', shape=[10, 10, 5], dtype='float32')
+        input = paddle.fluid.data(
+            name='input', shape=[10, 10, 5], dtype='float32')
+        label = paddle.fluid.data(
+            name='label', shape=[10, 10, 5], dtype='float32')
         l1_loss = paddle.nn.loss.L1Loss()
         result0 = l1_loss(input, label)
         l1_loss = paddle.nn.loss.L1Loss(reduction='sum')

python/paddle/fluid/tests/unittests/test_listen_and_serv.sh

 #!/bin/bash
+
+# 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.
+
 unset https_proxy http_proxy
 
 nohup python -u test_listen_and_serv_op.py > test_listen_and_serv_op.log 2>&1 &

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

@@ -191,8 +191,10 @@ class TestNNFunctionalMseLoss(unittest.TestCase):
             place = paddle.CUDAPlace(0) if core.is_compiled_with_cuda(
             ) else paddle.CPUPlace()
             with paddle.static.program_guard(prog, startup_prog):
-                input = paddle.fluid.data(name='input', shape=dim, dtype='float32')
-                target = paddle.fluid.data(name='target', shape=dim, dtype='float32')
+                input = paddle.fluid.data(
+                    name='input', shape=dim, dtype='float32')
+                target = paddle.fluid.data(
+                    name='target', shape=dim, dtype='float32')
                 mse_loss = paddle.nn.functional.mse_loss(input, target, 'mean')
 
             exe = paddle.static.Executor(place)
@@ -225,8 +227,10 @@ class TestNNFunctionalMseLoss(unittest.TestCase):
             place = paddle.CUDAPlace(0) if core.is_compiled_with_cuda(
             ) else paddle.CPUPlace()
             with paddle.static.program_guard(prog, startup_prog):
-                input = paddle.fluid.data(name='input', shape=dim, dtype='float32')
-                target = paddle.fluid.data(name='target', shape=dim, dtype='float32')
+                input = paddle.fluid.data(
+                    name='input', shape=dim, dtype='float32')
+                target = paddle.fluid.data(
+                    name='target', shape=dim, dtype='float32')
                 mse_loss = paddle.nn.functional.mse_loss(input, target, 'sum')
 
                 exe = paddle.static.Executor(place)
@@ -259,8 +263,10 @@ class TestNNFunctionalMseLoss(unittest.TestCase):
             place = paddle.CUDAPlace(0) if core.is_compiled_with_cuda(
             ) else paddle.CPUPlace()
             with paddle.static.program_guard(prog, startup_prog):
-                input = paddle.fluid.data(name='input', shape=dim, dtype='float32')
-                target = paddle.fluid.data(name='target', shape=dim, dtype='float32')
+                input = paddle.fluid.data(
+                    name='input', shape=dim, dtype='float32')
+                target = paddle.fluid.data(
+                    name='target', shape=dim, dtype='float32')
                 mse_loss = paddle.nn.functional.mse_loss(input, target, 'none')
 
                 exe = paddle.static.Executor(place)

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

@@ -160,5 +160,6 @@ class TestDygraphDataLoaderWithBatchedDataset(TestDygraphDataLoader):
         print("time cost", ret['time'], 'step_list', ret['step'])
         return ret
 
+
 if __name__ == '__main__':
     unittest.main()

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

@@ -97,8 +97,10 @@ class TestPixelShuffleAPI(unittest.TestCase):
             place = paddle.CUDAPlace(0) if use_cuda else paddle.CPUPlace()
 
             paddle.enable_static()
-            x_1 = paddle.fluid.data(name="x", shape=[2, 9, 4, 4], dtype="float64")
-            x_2 = paddle.fluid.data(name="x2", shape=[2, 4, 4, 9], dtype="float64")
+            x_1 = paddle.fluid.data(
+                name="x", shape=[2, 9, 4, 4], dtype="float64")
+            x_2 = paddle.fluid.data(
+                name="x2", shape=[2, 4, 4, 9], dtype="float64")
             out_1 = F.pixel_shuffle(x_1, 3)
             out_2 = F.pixel_shuffle(x_2, 3, "NHWC")
 
@@ -123,8 +125,10 @@ class TestPixelShuffleAPI(unittest.TestCase):
             place = paddle.CUDAPlace(0) if use_cuda else paddle.CPUPlace()
 
             paddle.enable_static()
-            x_1 = paddle.fluid.data(name="x", shape=[2, 9, 4, 4], dtype="float64")
-            x_2 = paddle.fluid.data(name="x2", shape=[2, 4, 4, 9], dtype="float64")
+            x_1 = paddle.fluid.data(
+                name="x", shape=[2, 9, 4, 4], dtype="float64")
+            x_2 = paddle.fluid.data(
+                name="x2", shape=[2, 4, 4, 9], dtype="float64")
             # init instance
             ps_1 = paddle.nn.PixelShuffle(3)
             ps_2 = paddle.nn.PixelShuffle(3, "NHWC")

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

@@ -55,7 +55,8 @@ class TestProdOp(unittest.TestCase):
         self.assertTrue(np.allclose(dy_result.numpy(), expected_result))
 
     def run_static(self, use_gpu=False):
-        input = paddle.fluid.data(name='input', shape=[10, 10, 5], dtype='float32')
+        input = paddle.fluid.data(
+            name='input', shape=[10, 10, 5], dtype='float32')
         result0 = paddle.prod(input)
         result1 = paddle.prod(input, axis=1)
         result2 = paddle.prod(input, axis=-1)
@@ -114,7 +115,8 @@ class TestProdOpError(unittest.TestCase):
         with paddle.static.program_guard(paddle.static.Program(),
                                          paddle.static.Program()):
             x = paddle.fluid.data(name='x', shape=[2, 2, 4], dtype='float32')
-            bool_x = paddle.fluid.data(name='bool_x', shape=[2, 2, 4], dtype='bool')
+            bool_x = paddle.fluid.data(
+                name='bool_x', shape=[2, 2, 4], dtype='bool')
             # The argument x shoule be a Tensor
             self.assertRaises(TypeError, paddle.prod, [1])
 

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

@@ -128,15 +128,18 @@ class TestSeluAPI(unittest.TestCase):
             # The input type must be Variable.
             self.assertRaises(TypeError, F.selu, 1)
             # The input dtype must be float16, float32, float64.
-            x_int32 = paddle.fluid.data(name='x_int32', shape=[12, 10], dtype='int32')
+            x_int32 = paddle.fluid.data(
+                name='x_int32', shape=[12, 10], dtype='int32')
             self.assertRaises(TypeError, F.selu, x_int32)
             # The scale must be greater than 1.0
-            x_fp32 = paddle.fluid.data(name='x_fp32', shape=[12, 10], dtype='float32')
+            x_fp32 = paddle.fluid.data(
+                name='x_fp32', shape=[12, 10], dtype='float32')
             self.assertRaises(ValueError, F.selu, x_fp32, -1.0)
             # The alpha must be no less than 0
             self.assertRaises(ValueError, F.selu, x_fp32, 1.6, -1.0)
             # support the input dtype is float16
-            x_fp16 = paddle.fluid.data(name='x_fp16', shape=[12, 10], dtype='float16')
+            x_fp16 = paddle.fluid.data(
+                name='x_fp16', shape=[12, 10], dtype='float16')
             F.selu(x_fp16)
 
 

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

@@ -42,8 +42,10 @@ def test_static(place,
     prog = paddle.static.Program()
     startup_prog = paddle.static.Program()
     with paddle.static.program_guard(prog, startup_prog):
-        logit = paddle.fluid.data(name='logit', shape=logit_np.shape, dtype='float64')
-        label = paddle.fluid.data(name='label', shape=label_np.shape, dtype='float64')
+        logit = paddle.fluid.data(
+            name='logit', shape=logit_np.shape, dtype='float64')
+        label = paddle.fluid.data(
+            name='label', shape=label_np.shape, dtype='float64')
         feed_dict = {"logit": logit_np, "label": label_np}
 
         normalizer = None

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

@@ -23,6 +23,7 @@ from paddle.fluid import Program, program_guard
 
 paddle.enable_static()
 
+
 class TestTransposeOp(OpTest):
     def setUp(self):
         self.init_op_type()
@@ -151,6 +152,7 @@ class TestTransposeOpError(unittest.TestCase):
 
             self.assertRaises(ValueError, test_each_elem_value_check)
 
+
 class TestTransposeApi(unittest.TestCase):
     def test_static_out(self):
         paddle.enable_static()
@@ -161,10 +163,11 @@ class TestTransposeApi(unittest.TestCase):
             place = paddle.CPUPlace()
             exe = paddle.static.Executor(place)
             x_np = np.random.random([2, 3, 4]).astype("float32")
-            result1, result2 = exe.run(feed={"x": x_np}, fetch_list=[x_trans1, x_trans2])
+            result1, result2 = exe.run(feed={"x": x_np},
+                                       fetch_list=[x_trans1, x_trans2])
             expected_result1 = np.transpose(x_np, [1, 0, 2])
             expected_result2 = np.transpose(x_np, (2, 1, 0))
-            
+
             np.testing.assert_array_equal(result1, expected_result1)
             np.testing.assert_array_equal(result2, expected_result2)
 
@@ -185,6 +188,7 @@ class TestTransposeApi(unittest.TestCase):
         # dygraph test
         paddle.enable_static()
 
+
 class TestTAPI(unittest.TestCase):
     def test_out(self):
         with fluid.program_guard(fluid.Program()):

scripts/paddle

+#!/bin/bash
+
+function version(){
+        echo "PaddlePaddle , compiled with"
+        echo "    with_avx: ON"
+        echo "    with_gpu: OFF"
+        echo "    with_mkl: ON"
+        echo "    with_mkldnn: "
+        echo "    with_python: ON"
+}
+
+function ver2num() {
+  set -e
+  # convert version to number.
+  if [ -z "$1" ]; then # empty argument
+    printf "%03d%03d%03d%03d%03d" 0
+  else
+    local VERN=$(echo $1 | sed 's#v##g' | sed 's#\.# #g' \
+        | sed 's#a# 0 #g' | sed 's#b# 1 #g' | sed 's#rc# 2 #g')
+    if [ `echo $VERN | wc -w` -eq 3 ] ; then
+      printf "%03d%03d%03d%03d%03d" $VERN 999 999
+    else
+      printf "%03d%03d%03d%03d%03d" $VERN
+    fi
+  fi
+  set +e
+}
+
+function cpu_config() {
+  # auto set KMP_AFFINITY and OMP_DYNAMIC from Hyper Threading Status
+  # only when MKL enabled
+  if [ "ON" == "OFF" ]; then
+    return 0
+  fi
+  platform="`uname -s`"
+  ht=0
+  if [ $platform == "Linux" ]; then
+    ht=`lscpu |grep "per core"|awk -F':' '{print $2}'|xargs`
+  elif [ $platform == "Darwin" ]; then
+    if [ `sysctl -n hw.physicalcpu` -eq `sysctl -n hw.logicalcpu` ]; then
+      # HT is OFF
+      ht=1
+    fi
+  else
+    return 0
+  fi
+  if [ $ht -eq 1 ]; then # HT is OFF
+    if [ -z "$KMP_AFFINITY" ]; then
+      export KMP_AFFINITY="granularity=fine,compact,0,0"
+    fi
+    if [ -z "$OMP_DYNAMIC" ]; then
+      export OMP_DYNAMIC="FALSE"
+    fi
+  else # HT is ON
+    if [ -z "$KMP_AFFINITY" ]; then
+      export KMP_AFFINITY="granularity=fine,compact,1,0"
+    fi
+    if [ -z "$OMP_DYNAMIC" ]; then
+      export OMP_DYNAMIC="True"
+    fi
+  fi
+}
+
+function threads_config() {
+  # auto set OMP_NUM_THREADS and MKL_NUM_THREADS
+  # according to trainer_count and total processors
+  # only when MKL enabled
+  # auto set OPENBLAS_NUM_THREADS when do not use MKL
+  platform="`uname -s`"
+  processors=0
+  if [ $platform == "Linux" ]; then
+    processors=`grep "processor" /proc/cpuinfo|sort -u|wc -l`
+  elif [ $platform == "Darwin" ]; then
+    processors=`sysctl -n hw.logicalcpu`
+  else
+    return 0
+  fi
+  trainers=`grep -Eo 'trainer_count.[0-9]+' <<< "$@" |grep -Eo '[0-9]+'|xargs`
+  if [ -z $trainers ]; then
+    trainers=1
+  fi
+  threads=$((processors / trainers))
+  if [ $threads -eq 0 ]; then
+    threads=1
+  fi
+  if [ "ON" == "ON" ]; then
+    if [ -z "$OMP_NUM_THREADS" ]; then
+      export OMP_NUM_THREADS=$threads
+    fi
+    if [ -z "$MKL_NUM_THREADS" ]; then
+      export MKL_NUM_THREADS=$threads
+    fi
+  else
+    if [ -z "$OPENBLAS_NUM_THREADS" ]; then
+      export OPENBLAS_NUM_THREADS=$threads
+    fi
+    if [ $threads -gt 1 ] && [ -z "$OPENBLAS_MAIN_FREE" ]; then
+      export OPENBLAS_MAIN_FREE=1
+    fi
+  fi
+  
+}
+
+PADDLE_CONF_HOME="$HOME/.config/paddle"
+mkdir -p ${PADDLE_CONF_HOME}
+
+if [ -z "${PADDLE_NO_STAT+x}" ]; then
+    SERVER_VER=`curl -m 5 -X POST --data content="{ \"version\": \"\" }"\
+        -b ${PADDLE_CONF_HOME}/paddle.cookie \
+        -c ${PADDLE_CONF_HOME}/paddle.cookie \
+        http://api.paddlepaddle.org/version 2>/dev/null`
+    if [ $? -eq 0 ] && [ "$(ver2num )" -lt  $(ver2num $SERVER_VER) ]; then
+      echo "Paddle release a new version ${SERVER_VER}, you can get the install package in http://www.paddlepaddle.org"
+    fi
+fi
+
+PADDLE_BIN_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+if [ ! -z "${DEBUGGER}" ]; then
+    echo "Using debug command ${DEBUGGER}"
+fi
+
+CUDNN_LIB_PATH=""
+
+if [ ! -z "${CUDNN_LIB_PATH}" ]; then
+    export LD_LIBRARY_PATH=${CUDNN_LIB_PATH}:${LD_LIBRARY_PATH}
+fi
+
+export PYTHONPATH=${PWD}:${PYTHONPATH}
+
+
+# Check python lib installed or not.
+pip --help > /dev/null
+if [ $? -ne 0 ]; then
+    echo "pip should be installed to run paddle."
+    exit 1
+fi
+
+if [ "OFF" == "ON" ]; then
+    PADDLE_NAME="paddlepaddle-gpu"
+else 
+    PADDLE_NAME="paddlepaddle"
+fi
+
+INSTALLED_VERSION=`pip freeze 2>/dev/null | grep "^${PADDLE_NAME}==" | sed 's/.*==//g'`
+
+if [ -z "${INSTALLED_VERSION}" ]; then
+   INSTALLED_VERSION="0.0.0"  # not installed
+fi
+cat <<EOF | python -
+from distutils.version import LooseVersion
+import sys
+if LooseVersion("${INSTALLED_VERSION}") < LooseVersion(""):
+  sys.exit(1)
+else:
+  sys.exit(0)
+EOF
+
+cpu_config
+# echo $KMP_AFFINITY $OMP_DYNAMIC
+
+case "$1" in
+    "version")
+        version
+        ;;
+    *)
+        version
+        ;;
+ esac

tools/check_api_approvals.sh

 #!/bin/bash
 
+# 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.
+
 if [ -z ${BRANCH} ]; then
     BRANCH="develop"
 fi

tools/check_sequence_op.sh

 #!/bin/bash
 
+# 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.
+
 PADDLE_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}")/../" && pwd )"
 
 function check_sequnece_op_unitests(){

tools/cudaError/start.sh

 #!/usr/bin/env bash
+
+# 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.
+
 set -ex
 SYSTEM=`uname -s`
 rm -f protoc-3.11.3-linux-x86_64.*

tools/diff_api.py

 #!/usr/bin/env python
+
+# 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.
+
 from __future__ import print_function
 import difflib
 import sys

tools/diff_unittest.py

 #!/usr/bin/env python
+
+# 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.
+
 import difflib
 import sys
 

tools/dockerfile/icode.sh

 #!/bin/bash
 
+# 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.
+
 
 function install_gcc(){
   sed -i 's#<install_gcc>#RUN apt-get update \

tools/document_preview.sh

 #!/bin/bash
+
+# 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.
+
 PADDLE_ROOT=/home
 mkdir ${PADDLE_ROOT}
 cd ${PADDLE_ROOT}

tools/get_cpu_info.sh

 #!/bin/bash
 
+# 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.
+
 if [ "`uname -s`" != "Linux" ]; then
   echo "Current scenario only support in Linux yet!"
   exit 0