diff --git a/ge/hybrid/executor/hybrid_model_executor.cc b/ge/hybrid/executor/hybrid_model_executor.cc
index 2bb683c7..dd8aace6 100755
--- a/ge/hybrid/executor/hybrid_model_executor.cc
+++ b/ge/hybrid/executor/hybrid_model_executor.cc
@@ -35,10 +35,11 @@ HybridModelExecutor::HybridModelExecutor(HybridModel *model, uint32_t device_id,
 HybridModelExecutor::~HybridModelExecutor() {
 }
 
-Status HybridModelExecutor::Init() {
+Status HybridModelExecutor::Init(ThreadPool *thread_pool) {
   GELOGD("Start to init HybridGraphEngine.");
   GE_CHK_STATUS_RET_NOLOG(InitExecutionContext());
-  root_graph_executor_.reset(new (std::nothrow) SubgraphExecutor(model_->GetRootGraphItem(), &context_));
+  root_graph_executor_.reset(
+    new (std::nothrow) SubgraphExecutor(model_->GetRootGraphItem(), &context_, false, thread_pool));
   GE_CHECK_NOTNULL(root_graph_executor_);
   GELOGD("HybridGraphEngine initialized successfully.");
   return SUCCESS;
diff --git a/ge/hybrid/executor/hybrid_model_executor.h b/ge/hybrid/executor/hybrid_model_executor.h
index 102e4f8b..dbec7adf 100644
--- a/ge/hybrid/executor/hybrid_model_executor.h
+++ b/ge/hybrid/executor/hybrid_model_executor.h
@@ -39,7 +39,7 @@ class HybridModelExecutor {
 
   ~HybridModelExecutor();
 
-  Status Init();
+  Status Init(ThreadPool *thread_pool = nullptr);
 
   const GraphExecutionContext* GetContext() const {
     return &context_;
diff --git a/ge/hybrid/executor/subgraph_executor.cc b/ge/hybrid/executor/subgraph_executor.cc
index 33a2846c..7fcdec5d 100644
--- a/ge/hybrid/executor/subgraph_executor.cc
+++ b/ge/hybrid/executor/subgraph_executor.cc
@@ -28,20 +28,30 @@ constexpr int kDefaultQueueSize = 16;
 constexpr int kDataInputIndex = 0;
 }
 
-SubgraphExecutor::SubgraphExecutor(const GraphItem *graph_item, GraphExecutionContext *context, bool force_infer_shape)
+SubgraphExecutor::SubgraphExecutor(const GraphItem *graph_item, GraphExecutionContext *context, bool force_infer_shape,
+                                   ThreadPool *pre_run_pool)
     : graph_item_(graph_item),
       context_(context),
       force_infer_shape_(force_infer_shape),
-      pre_run_pool_(kDefaultThreadNum),
+      pre_run_pool_(pre_run_pool),
+      own_thread_pool_(false),
       ready_queue_(kDefaultQueueSize) {
 }
 
 SubgraphExecutor::~SubgraphExecutor() {
+  if (own_thread_pool_ && pre_run_pool_ != nullptr) {
+    delete pre_run_pool_;
+  }
   GELOGD("[%s] SubgraphExecutor destroyed.", graph_item_->GetName().c_str());
 }
 
 Status SubgraphExecutor::Init(const std::vector<TensorValue> &inputs,
                               const std::vector<ConstGeTensorDescPtr> &input_desc) {
+  if (pre_run_pool_ == nullptr) {
+    pre_run_pool_ = new (std::nothrow) ThreadPool(kDefaultThreadNum);
+    GE_CHECK_NOTNULL(pre_run_pool_);
+    own_thread_pool_ = true;
+  }
   subgraph_context_.reset(new(std::nothrow)SubgraphContext(graph_item_, context_));
   GE_CHECK_NOTNULL(subgraph_context_);
   GE_CHK_STATUS_RET(subgraph_context_->Init(),
@@ -254,7 +264,8 @@ Status SubgraphExecutor::PrepareNode(const NodeItem &node_item, int group) {
 
   // only do shape inference and compilation for nodes with dynamic shapes.
   if (node_item.is_dynamic) {
-    auto prepare_future = pre_run_pool_.commit([this, p_node_state]() -> Status {
+    GE_CHECK_NOTNULL(pre_run_pool_);
+    auto prepare_future = pre_run_pool_->commit([this, p_node_state]() -> Status {
       GetContext().SetSessionId(context_->session_id);
       GetContext().SetContextId(context_->context_id);
       GE_CHK_STATUS_RET_NOLOG(InferShape(shape_inference_engine_.get(), *p_node_state));
@@ -349,7 +360,8 @@ Status SubgraphExecutor::NodeScheduled(NodeState *node_state) {
          node_state->GetNodeItem()->data_send_.size(), node_state->GetNodeItem()->ctrl_send_.size(),
          node_state->GetSwitchIndex(), node_state->GetMergeIndex());
 
-  auto future = pre_run_pool_.commit([this, node_state]() -> Status {
+  GE_CHECK_NOTNULL(pre_run_pool_);
+  auto future = pre_run_pool_->commit([this, node_state]() -> Status {
     RECORD_CALLBACK_EVENT(context_, node_state->GetName().c_str(), "[NodeScheduled] Start");
     std::function<void(const NodeItem *)> callback = [&](const NodeItem *node_item) {
       const auto &node_name = node_item->node_name;
diff --git a/ge/hybrid/executor/subgraph_executor.h b/ge/hybrid/executor/subgraph_executor.h
index 76732c37..be11ff59 100644
--- a/ge/hybrid/executor/subgraph_executor.h
+++ b/ge/hybrid/executor/subgraph_executor.h
@@ -33,7 +33,8 @@ namespace hybrid {
 // Executor for executing a subgraph
 class SubgraphExecutor {
  public:
-  SubgraphExecutor(const GraphItem *graph_item, GraphExecutionContext *context, bool force_infer_shape = false);
+  SubgraphExecutor(const GraphItem *graph_item, GraphExecutionContext *context, bool force_infer_shape = false,
+                   ThreadPool *pre_run_pool = nullptr);
   ~SubgraphExecutor();
 
   Status InitForPartialExecution(const std::vector<TensorValue> &inputs,
@@ -124,7 +125,8 @@ class SubgraphExecutor {
   GraphExecutionContext *context_;
   std::unique_ptr<SubgraphContext> subgraph_context_;
   bool force_infer_shape_;
-  ThreadPool pre_run_pool_;
+  ThreadPool *pre_run_pool_;
+  bool own_thread_pool_;
   BlockingQueue<NodeState *> ready_queue_;
   std::unique_ptr<ShapeInferenceEngine> shape_inference_engine_;
 
diff --git a/ge/single_op/single_op_model.cc b/ge/single_op/single_op_model.cc
index 426d3233..ca07d2ae 100755
--- a/ge/single_op/single_op_model.cc
+++ b/ge/single_op/single_op_model.cc
@@ -713,7 +713,9 @@ Status SingleOpModel::BuildDynamicOp(StreamResource &resource, DynamicSingleOp &
                                                                                          device_id,
                                                                                          resource.GetStream()));
     GE_CHECK_NOTNULL(single_op.hybrid_model_executor_);
-    GE_CHK_STATUS_RET(single_op.hybrid_model_executor_->Init(), "[Init][HybridModelExecutor]Failed.");
+    ThreadPool *thread_pool = nullptr;
+    GE_CHK_STATUS_RET_NOLOG(resource.GetThreadPool(&thread_pool));
+    GE_CHK_STATUS_RET(single_op.hybrid_model_executor_->Init(thread_pool), "[Init][HybridModelExecutor]Failed.");
     return SUCCESS;
   }
   return BuildTaskListForDynamicOp(&resource, single_op);
diff --git a/ge/single_op/stream_resource.cc b/ge/single_op/stream_resource.cc
index 9fe8f26a..10a8f72b 100755
--- a/ge/single_op/stream_resource.cc
+++ b/ge/single_op/stream_resource.cc
@@ -25,6 +25,7 @@ namespace ge {
 namespace {
 // limit available device mem size  1M
 const uint32_t kFuzzDeviceBufferSize = 1 * 1024 * 1024;
+constexpr int kDefaultThreadNum = 4;
 }
 
 StreamResource::StreamResource(uintptr_t resource_id) : resource_id_(resource_id) {
@@ -219,6 +220,16 @@ Status StreamResource::BuildOperator(const ModelData &model_data, SingleOp **sin
   return SUCCESS;
 }
 
+Status StreamResource::GetThreadPool(ThreadPool **thread_pool) {
+  GE_CHECK_NOTNULL(thread_pool);
+  if (thread_pool_ == nullptr) {
+    thread_pool_.reset(new (std::nothrow) ThreadPool(kDefaultThreadNum));
+    GE_CHECK_NOTNULL(thread_pool_);
+  }
+  *thread_pool = thread_pool_.get();
+  return SUCCESS;
+}
+
 const uint8_t *StreamResource::GetMemoryBase() const {
   if (memory_list_.empty()) {
     return nullptr;
diff --git a/ge/single_op/stream_resource.h b/ge/single_op/stream_resource.h
index 8986634b..f1e1bebb 100755
--- a/ge/single_op/stream_resource.h
+++ b/ge/single_op/stream_resource.h
@@ -54,6 +54,8 @@ class StreamResource {
     return device_buffer_;
   }
 
+  Status GetThreadPool(ThreadPool **thread_pool);
+
  private:
   uint8_t *DoMallocMemory(const std::string &purpose,
                           size_t size,
@@ -66,6 +68,7 @@ class StreamResource {
   std::vector<uint8_t *> weight_list_;
   std::unordered_map<uint64_t, std::unique_ptr<SingleOp>> op_map_;
   std::unordered_map<uint64_t, std::unique_ptr<DynamicSingleOp>> dynamic_op_map_;
+  std::unique_ptr<ThreadPool> thread_pool_;
   rtStream_t stream_ = nullptr;
   std::mutex mu_;
   std::mutex stream_mu_;
diff --git a/metadef b/metadef
index 3ace5b6f..f9a47a45 160000
--- a/metadef
+++ b/metadef
@@ -1 +1 @@
-Subproject commit 3ace5b6f10e0af784a1c3211fd769d6e8860e864
+Subproject commit f9a47a45cdd7e6dc507a15291fcb769f96b859b3
diff --git a/parser b/parser
index db68a1a4..b42a99ea 160000
--- a/parser
+++ b/parser
@@ -1 +1 @@
-Subproject commit db68a1a4f1a6ae69dbf9a5f338392d50ea3874e3
+Subproject commit b42a99ea6e1be75156650675fd0aeabca6cb3de9
diff --git a/tests/ut/ge/single_op/stream_resource_unittest.cc b/tests/ut/ge/single_op/stream_resource_unittest.cc
index e07fc39d..e4ab469e 100644
--- a/tests/ut/ge/single_op/stream_resource_unittest.cc
+++ b/tests/ut/ge/single_op/stream_resource_unittest.cc
@@ -66,6 +66,9 @@ TEST_F(UtestStreamResource, test_build_op) {
   res.op_map_[0].reset(single_op);
   res.dynamic_op_map_[1].reset(dynamic_single_op);
 
+  ThreadPool *thread_pool = nullptr;
+  EXPECT_EQ(res.GetThreadPool(&thread_pool), SUCCESS);
+
   EXPECT_EQ(res.GetOperator(0), nullptr);
   EXPECT_EQ(res.GetDynamicOperator(1), nullptr);
   EXPECT_EQ(res.BuildOperator(model_data, &single_op, 0), SUCCESS);