diff --git a/mindspore/ccsrc/backend/kernel_compiler/cpu/ps/push_kernel.h b/mindspore/ccsrc/backend/kernel_compiler/cpu/ps/push_kernel.h
index cffba873fb..800315e5f3 100644
--- a/mindspore/ccsrc/backend/kernel_compiler/cpu/ps/push_kernel.h
+++ b/mindspore/ccsrc/backend/kernel_compiler/cpu/ps/push_kernel.h
@@ -43,7 +43,10 @@ class PushKernel : public CPUKernel {
       sizes.push_back(SizeToInt(input->size) / sizeof(T));
     }
     parallel::ps::Worker<T>::GetInstance().Push(keys, addrs, sizes);
-    memcpy_s(outputs[0]->addr, sizeof(size_t), &key_, sizeof(size_t));
+    auto ret = memcpy_s(outputs[0]->addr, sizeof(size_t), &key_, sizeof(size_t));
+    if (ret != EOK) {
+      MS_LOG(EXCEPTION) << "Lookup id memcpy failed.";
+    }
     return true;
   }
 
diff --git a/mindspore/ccsrc/frontend/parallel/ps/common.h b/mindspore/ccsrc/frontend/parallel/ps/common.h
index a072a65001..b0d557dc1f 100644
--- a/mindspore/ccsrc/frontend/parallel/ps/common.h
+++ b/mindspore/ccsrc/frontend/parallel/ps/common.h
@@ -66,6 +66,8 @@ constexpr int kInitWeightToOptimIdCmd = 11;
 constexpr int kInitOptimInputsShapeCmd = 12;
 constexpr int kInitKeyToPushNodeIdCmd = 13;
 constexpr int kInitEmbeddingsCmd = 20;
+constexpr int kCheckReadyForPushCmd = 25;
+constexpr int kCheckReadyForPullCmd = 26;
 constexpr int kEmbeddingLookupCmd = 30;
 constexpr int kFinalizeCmd = 40;
 
diff --git a/mindspore/ccsrc/frontend/parallel/ps/optimizer_info_builder.cc b/mindspore/ccsrc/frontend/parallel/ps/optimizer_info_builder.cc
index b87b001696..23ad87c41e 100644
--- a/mindspore/ccsrc/frontend/parallel/ps/optimizer_info_builder.cc
+++ b/mindspore/ccsrc/frontend/parallel/ps/optimizer_info_builder.cc
@@ -158,16 +158,19 @@ OptimizerInfo *SparseFtrlOptimInfoBuilder::BuildInputs(const WeightPtr &weight,
   }
   AddressPtr linear = std::make_shared<kernel::Address>();
   linear->addr = new float[weight->size()];
-  memcpy_s(linear->addr, weight->size() * sizeof(float), 0x00, weight->size() * sizeof(float));
+  auto ret = memset_s(linear->addr, weight->size() * sizeof(float), 0x00, weight->size() * sizeof(float));
+  if (ret != 0) {
+    MS_LOG(EXCEPTION) << "memcpy_s error, errorno(" << ret << ")";
+  }
   linear->size = weight->size() * sizeof(float);
 
   const std::shared_ptr<std::vector<size_t>> &grad_shape = (*inputs_shape)[3];
   size_t total_grad_size = std::accumulate((*grad_shape).begin(), (*grad_shape).end(), 1, std::multiplies<size_t>());
   AddressPtr grad = std::make_shared<kernel::Address>();
   grad->addr = new float[total_grad_size * worker_num];
-  auto ret = memcpy_s(grad->addr, lens[0] * sizeof(float), values.data(), lens[0] * sizeof(float));
-  if (ret != 0) {
-    MS_LOG(EXCEPTION) << "memcpy_s error, errorno(" << ret << ")";
+  auto ret1 = memcpy_s(grad->addr, lens[0] * sizeof(float), values.data(), lens[0] * sizeof(float));
+  if (ret1 != 0) {
+    MS_LOG(EXCEPTION) << "memcpy_s error, errorno(" << ret1 << ")";
   }
   grad->size = lens[0] * sizeof(float);
 
diff --git a/mindspore/ccsrc/frontend/parallel/ps/parameter_server.h b/mindspore/ccsrc/frontend/parallel/ps/parameter_server.h
index 64983458df..092e907da0 100644
--- a/mindspore/ccsrc/frontend/parallel/ps/parameter_server.h
+++ b/mindspore/ccsrc/frontend/parallel/ps/parameter_server.h
@@ -91,6 +91,8 @@ class ParameterServer {
                                    ::ps::KVPairs<T> *res);
     void HandleInitInputsShape(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res);
     void HandleInitEmbeddings(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res);
+    void HandleCheckReadyForPush(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res);
+    void HandleCheckReadyForPull(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res);
     void HandleEmbeddingLookup(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res);
     void HandleFinalize(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res);
 
@@ -98,6 +100,9 @@ class ParameterServer {
     typedef void (ServerHandler::*RequestHandler)(const ::ps::KVMeta &req_meta, const ::ps::KVPairs<T> &req_data,
                                                   ::ps::KVPairs<T> *res);
     std::unordered_map<int, RequestHandler> handlers_;
+    std::unordered_map<Key, bool> init_weights_;
+    std::unordered_map<Key, bool> init_weight_to_optim_;
+    std::unordered_map<Key, bool> init_optim_info_;
   };
 
   bool Init(const FuncGraphPtr &func_graph);
@@ -115,9 +120,11 @@ class ParameterServer {
   void DoEmbeddingLookup(Key key, const LookupIds &lookup_ids, ::ps::KVPairs<T> *res);
   int SumOfShapes(const std::vector<int> &shapes) const;
   bool ReadyForUpdateWeights();
-  bool ReadyForAccumGrads();
+  bool ReadyForPush(const Key &key);
+  bool ReadyForPull(const Key &key);
   void ResetGradAccumCount();
   const CNodePtr GetCNode(const std::string &name) const;
+  std::mutex &mutex();
 
   size_t pserver_num_;
   size_t worker_num_;
@@ -136,13 +143,14 @@ class ParameterServer {
   std::unordered_map<Key, std::string> weight_key_to_optims_;
   std::unordered_map<Key, std::string> weight_key_to_optim_op_;
   std::unordered_map<Key, WeightPtr> weights_;
+  std::unordered_map<Key, bool> is_embedding_;
   std::unordered_map<Key, WeightPtr> grads_;
   std::unordered_map<Key, size_t> grads_accum_counter_;
   std::unordered_map<Key, std::shared_ptr<PServerKernel>> embedding_lookup_ops_;
+  std::unordered_map<Key, uint64_t> tokens_;
 
   std::mutex mutex_;
   std::condition_variable apply_grads_cv_;
-  std::condition_variable accum_grads_cv_;
 
   std::unique_ptr<std::thread> thread_;
 
@@ -171,6 +179,8 @@ void ParameterServer<T>::ServerHandler::Init() {
   handlers_[kInitWeightToOptimIdCmd] = &ServerHandler::HandleInitWeightToOptimId;
   handlers_[kInitOptimInputsShapeCmd] = &ServerHandler::HandleInitInputsShape;
   handlers_[kInitEmbeddingsCmd] = &ServerHandler::HandleInitEmbeddings;
+  handlers_[kCheckReadyForPushCmd] = &ServerHandler::HandleCheckReadyForPush;
+  handlers_[kCheckReadyForPullCmd] = &ServerHandler::HandleCheckReadyForPull;
   handlers_[kEmbeddingLookupCmd] = &ServerHandler::HandleEmbeddingLookup;
   handlers_[kFinalizeCmd] = &ServerHandler::HandleFinalize;
 }
@@ -192,11 +202,17 @@ void ParameterServer<T>::ServerHandler::HandlePullReq(const ::ps::KVMeta &req_me
 template <typename T>
 void ParameterServer<T>::ServerHandler::HandleInitWeights(const ::ps::KVMeta &req_meta,
                                                           const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res) {
+  std::unique_lock<std::mutex> lock(ps_->mutex());
   size_t key_num = req_data.keys.size();
   T *data_ptr = req_data.vals.data();
   size_t pos = 0;
   for (size_t i = 0; i < key_num; i++) {
     Key key = req_data.keys[i];
+    if (init_weights_[key]) {
+      continue;
+    } else {
+      init_weights_[key] = true;
+    }
     size_t data_len = req_data.lens.size() != key_num ? req_data.vals.size() / key_num : req_data.lens[i];
 
     WeightPtr weight_ptr = std::make_shared<::ps::SArray<T>>();
@@ -213,10 +229,16 @@ template <typename T>
 void ParameterServer<T>::ServerHandler::HandleInitWeightToOptimId(const ::ps::KVMeta &req_meta,
                                                                   const ::ps::KVPairs<T> &req_data,
                                                                   ::ps::KVPairs<T> *res) {
+  std::unique_lock<std::mutex> lock(ps_->mutex());
   size_t key_num = req_data.keys.size();
   for (size_t i = 0; i < key_num; i++) {
     Key key = req_data.keys[i];
     T val = req_data.vals[i];
+    if (init_weight_to_optim_[key]) {
+      continue;
+    } else {
+      init_weight_to_optim_[key] = true;
+    }
     ps_->InitWeightKeyToOptims(key, val);
   }
 }
@@ -224,12 +246,26 @@ void ParameterServer<T>::ServerHandler::HandleInitWeightToOptimId(const ::ps::KV
 template <typename T>
 void ParameterServer<T>::ServerHandler::HandleInitInputsShape(const ::ps::KVMeta &req_meta,
                                                               const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res) {
+  std::unique_lock<std::mutex> lock(ps_->mutex());
+  const Key &key = req_data.keys[0];
+  if (init_optim_info_[key]) {
+    return;
+  } else {
+    init_optim_info_[key] = true;
+  }
   ps_->InitOptimInputsShape(req_data.keys, req_data.vals, req_data.lens);
 }
 
 template <typename T>
 void ParameterServer<T>::ServerHandler::HandleInitEmbeddings(const ::ps::KVMeta &req_meta,
                                                              const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res) {
+  std::unique_lock<std::mutex> lock(ps_->mutex());
+  const Key &key = req_data.keys[0];
+  if (init_weights_[key]) {
+    return;
+  } else {
+    init_weights_[key] = true;
+  }
   std::shared_ptr<std::vector<std::shared_ptr<std::vector<size_t>>>> shapes =
     std::make_shared<std::vector<std::shared_ptr<std::vector<size_t>>>>();
   std::shared_ptr<std::vector<size_t>> input_shape = std::make_shared<std::vector<size_t>>();
@@ -239,7 +275,6 @@ void ParameterServer<T>::ServerHandler::HandleInitEmbeddings(const ::ps::KVMeta
   shapes->push_back(indices_shape);
   shapes->push_back(output_shape);
 
-  const Key &key = req_data.keys[0];
   const Lengths &lens = req_data.lens;
   size_t index = 0;
   for (int i = 0; i < lens[0]; i++) {
@@ -254,6 +289,26 @@ void ParameterServer<T>::ServerHandler::HandleInitEmbeddings(const ::ps::KVMeta
   ps_->InitEmbeddingTable(key, shapes);
 }
 
+template <typename T>
+void ParameterServer<T>::ServerHandler::HandleCheckReadyForPush(const ::ps::KVMeta &req_meta,
+                                                                const ::ps::KVPairs<T> &req_data,
+                                                                ::ps::KVPairs<T> *res) {
+  const Key &key = req_data.keys[0];
+  bool ready = ps_->ReadyForPush(key);
+  res->keys.push_back(key);
+  res->vals.push_back(ready);
+}
+
+template <typename T>
+void ParameterServer<T>::ServerHandler::HandleCheckReadyForPull(const ::ps::KVMeta &req_meta,
+                                                                const ::ps::KVPairs<T> &req_data,
+                                                                ::ps::KVPairs<T> *res) {
+  const Key &key = req_data.keys[0];
+  bool ready = ps_->ReadyForPull(key);
+  res->keys.push_back(key);
+  res->vals.push_back(ready);
+}
+
 template <typename T>
 void ParameterServer<T>::ServerHandler::HandleEmbeddingLookup(const ::ps::KVMeta &req_meta,
                                                               const ::ps::KVPairs<T> &req_data, ::ps::KVPairs<T> *res) {
@@ -365,6 +420,8 @@ void ParameterServer<T>::InitWeight(const Key &key, const WeightPtr &weight) {
   MS_LOG(INFO) << "Initializing weight for key " << key;
   if (weights_.count(key) == 0) {
     weights_[key] = weight;
+    tokens_[key] = 0;
+    is_embedding_[key] = false;
   }
 }
 
@@ -399,6 +456,8 @@ void ParameterServer<T>::InitEmbeddingTable(
     embedding_data[i] = random(engine);
   }
   weights_[key] = embedding;
+  tokens_[key] = 0;
+  is_embedding_[key] = true;
 
   grads_accum_counter_[key] = 0;
 }
@@ -439,17 +498,17 @@ void ParameterServer<T>::UpdateWeights() {
       optim_info->ComputeMean(worker_num_);
       optimizer->Execute(inputs, workspaces, outputs);
       optim_info->Reset();
+      if (!is_embedding_[key]) {
+        tokens_[key] = worker_num_;
+      }
     }
     ResetGradAccumCount();
-    accum_grads_cv_.notify_all();
   }
 }
 
 template <typename T>
 void ParameterServer<T>::AccumGrad(const Keys &keys, const Values &values, const Lengths &lengths) {
   std::unique_lock<std::mutex> lock(mutex_);
-  accum_grads_cv_.wait(lock, [this] { return this->ReadyForAccumGrads(); });
-
   const Key &key = keys[0];
   std::shared_ptr<OptimizerInfo> optim_info = optim_infos_[key];
 
@@ -482,14 +541,13 @@ void ParameterServer<T>::AccumGrad(const Keys &keys, const Values &values, const
 template <typename T>
 WeightPtr ParameterServer<T>::weight(const Key &key) {
   std::unique_lock<std::mutex> lock(mutex_);
-
   if (weights_.count(key) == 0) {
-    MS_LOG(ERROR) << "Invalid weight key " << key;
-    return nullptr;
+    MS_LOG(EXCEPTION) << "Invalid weight key " << key;
   }
   WeightPtr weight_ptr = weights_[key];
   WeightPtr copy_weight_ptr = std::make_shared<::ps::SArray<T>>(weight_ptr->size(), 0);
   copy_weight_ptr->CopyFrom(weight_ptr->data(), weight_ptr->size());
+  tokens_[key] -= 1;
   return copy_weight_ptr;
 }
 
@@ -560,12 +618,22 @@ inline bool ParameterServer<T>::ReadyForUpdateWeights() {
 }
 
 template <typename T>
-inline bool ParameterServer<T>::ReadyForAccumGrads() {
+inline bool ParameterServer<T>::ReadyForPush(const Key &key) {
+  std::unique_lock<std::mutex> lock(mutex_);
   if (weights_.empty()) {
     MS_LOG(EXCEPTION) << "The weights in server is empty. Many reasons could cause this: 1.The Worker didn't send "
                          "kInitWeightsCmd command. 2.The Server failed to initialize weights.";
   }
-  return grad_accum_count_ < weights_.size();
+  return grad_accum_count_ < weights_.size() && tokens_[key] <= 0;
+}
+
+template <typename T>
+inline bool ParameterServer<T>::ReadyForPull(const Key &key) {
+  std::unique_lock<std::mutex> lock(mutex_);
+  if (tokens_.count(key) == 0 || weights_[key] == 0) {
+    MS_LOG(EXCEPTION) << "Invalid weight key " << key;
+  }
+  return tokens_[key] > 0;
 }
 
 template <typename T>
@@ -576,6 +644,11 @@ inline void ParameterServer<T>::ResetGradAccumCount() {
   }
 }
 
+template <typename T>
+inline std::mutex &ParameterServer<T>::mutex() {
+  return mutex_;
+}
+
 template <typename T>
 void ParameterServer<T>::Run(const FuncGraphPtr &func_graph) {
   ::ps::Start(0);
diff --git a/mindspore/ccsrc/frontend/parallel/ps/worker.h b/mindspore/ccsrc/frontend/parallel/ps/worker.h
index bde21904bb..ec220d5eff 100644
--- a/mindspore/ccsrc/frontend/parallel/ps/worker.h
+++ b/mindspore/ccsrc/frontend/parallel/ps/worker.h
@@ -99,18 +99,30 @@ void Worker<T>::Push(const std::vector<size_t> &keys, std::vector<uintptr_t> add
   ::ps::SArray<T> total_buffer(total_size, 0);
   size_t offset = 0;
   for (size_t i = 0; i < sizes.size(); i++) {
-    memcpy_s(total_buffer.data() + offset / sizeof(T), sizes[i] * sizeof(T), reinterpret_cast<void *>(addrs[i]),
-             sizes[i] * sizeof(T));
+    auto ret = memcpy_s(total_buffer.data() + offset / sizeof(T), sizes[i] * sizeof(T),
+                        reinterpret_cast<void *>(addrs[i]), sizes[i] * sizeof(T));
+    if (ret != 0) {
+      MS_LOG(EXCEPTION) << "memcpy_s error, errorno(" << ret << ")";
+    }
     offset += sizes[i] * sizeof(T);
   }
+  while (!kv_worker_->IsReadyForPush(keys[0])) {
+    continue;
+  }
   kv_worker_->PushData(::ps::SArray<::ps::Key>(keys), total_buffer, ::ps::SArray<int>(sizes));
 }
 
 template <typename T>
 void Worker<T>::Pull(const size_t key, void *dev_addr, const size_t size) {
   ::ps::SArray<T> variables(size / sizeof(T), 0);
+  while (!kv_worker_->IsReadyForPull(key)) {
+    continue;
+  }
   kv_worker_->Wait(kv_worker_->ZPull({key}, &variables));
-  memcpy_s(dev_addr, size, variables.data(), size);
+  auto ret = memcpy_s(dev_addr, size, variables.data(), size);
+  if (ret != 0) {
+    MS_LOG(EXCEPTION) << "memcpy_s error, errorno(" << ret << ")";
+  }
 }
 
 template <typename T>
diff --git a/mindspore/ccsrc/frontend/parallel/ps/worker_proxy.h b/mindspore/ccsrc/frontend/parallel/ps/worker_proxy.h
index 6ac7f6322d..7f73081ab7 100644
--- a/mindspore/ccsrc/frontend/parallel/ps/worker_proxy.h
+++ b/mindspore/ccsrc/frontend/parallel/ps/worker_proxy.h
@@ -56,6 +56,8 @@ class WorkerProxy : public ::ps::KVWorker<T> {
                        int priority = 0);
   int InitEmbeddingTable(const ::ps::SArray<::ps::Key> &keys, const ::ps::SArray<T> &vals,
                          const ::ps::SArray<int> &lens = {}, const Callback &cb = nullptr, int priority = 0);
+  bool IsReadyForPush(const Key &key);
+  bool IsReadyForPull(const Key &key);
   void PushData(const ::ps::SArray<::ps::Key> &keys, const ::ps::SArray<T> &vals, const ::ps::SArray<int> &lens = {},
                 int cmd = 0, int priority = 0);
   void Finalize();
@@ -134,6 +136,28 @@ int WorkerProxy<T>::InitEmbeddingTable(const ::ps::SArray<::ps::Key> &keys, cons
   return ts;
 }
 
+template <typename T>
+bool WorkerProxy<T>::IsReadyForPush(const Key &key) {
+  ::ps::SArray<T> result(1, 0);
+  this->Wait(this->ZPull({key}, &result, nullptr, kCheckReadyForPushCmd));
+  if (result[0] > 0) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+template <typename T>
+bool WorkerProxy<T>::IsReadyForPull(const Key &key) {
+  ::ps::SArray<T> result(1, 0);
+  this->Wait(this->ZPull({key}, &result, nullptr, kCheckReadyForPullCmd));
+  if (result[0] > 0) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
 template <typename T>
 void WorkerProxy<T>::PushData(const ::ps::SArray<::ps::Key> &keys, const ::ps::SArray<T> &vals,
                               const ::ps::SArray<int> &lens, int cmd, int priority) {