diff --git a/ge/hybrid/executor/hybrid_model_executor.cc b/ge/hybrid/executor/hybrid_model_executor.cc
index ee933090..b2ad4eb6 100755
--- a/ge/hybrid/executor/hybrid_model_executor.cc
+++ b/ge/hybrid/executor/hybrid_model_executor.cc
@@ -95,6 +95,7 @@ Status HybridModelExecutor::InitExecutionContext() {
 
   context_.stream = stream_;
   context_.model = model_;
+  context_.is_eos_ = false;
   context_.session_id = ::ge::GetContext().SessionId();
   context_.ge_context = &GetThreadLocalContext();
   GELOGD("session id from model = %lu, from context = %lu", model_->GetSessionId(), context_.session_id);
diff --git a/ge/hybrid/model/node_item.h b/ge/hybrid/model/node_item.h
index a34227c5..2290dc09 100644
--- a/ge/hybrid/model/node_item.h
+++ b/ge/hybrid/model/node_item.h
@@ -82,6 +82,7 @@ struct NodeItem {
   bool has_observer = false;
   bool has_optional_inputs = false;
   bool is_output_shape_static = true;
+  bool may_trigger_eos_ = false;
   UnknowShapeOpType shape_inference_type = DEPEND_IN_SHAPE;
   std::string node_name;
   std::string node_type;
diff --git a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
index 3ef0a50f..c914ac1b 100755
--- a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
+++ b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
@@ -21,8 +21,6 @@
 #include "common/ge/ge_util.h"
 #include "graph/attr_value.h"
 #include "graph/debug/ge_attr_define.h"
-#include "graph/utils/graph_utils.h"
-#include "graph/utils/node_utils.h"
 #include "graph/load/new_model_manager/model_utils.h"
 #include "graph/load/new_model_manager/model_manager.h"
 #include "hybrid/executor/hybrid_execution_context.h"
@@ -31,7 +29,7 @@ namespace ge {
 namespace hybrid {
 REGISTER_NODE_EXECUTOR_BUILDER(NodeExecutorManager::ExecutorType::COMPILED_SUBGRAPH, KnownNodeExecutor);
 
-Status KnownNodeTask::ExecuteAsync(TaskContext &context, std::function<void()> done_callback) {
+Status KnownNodeTask::   ExecuteAsync(TaskContext &context, std::function<void()> done_callback) {
   RECORD_EXECUTION_EVENT(context.GetExecutionContext(), context.GetNodeName(), "[KnownNodeTaskExecuteAsync] Start");
   GELOGD("[%s] KnownNodeTask::ExecuteAsync in.", context.GetNodeName());
   if (davinci_model_->GetTaskList().empty()) {
@@ -60,10 +58,6 @@ Status KnownNodeTask::ExecuteAsync(TaskContext &context, std::function<void()> d
                   GELOGE(rt_ret, "rtModelExecute error, ret: hybrid_model_executorOx%X", rt_ret); return FAILED;);
   RECORD_EXECUTION_EVENT(context.GetExecutionContext(), context.GetNodeName(), "[KnownNodertModelExecute] End");
 
-  if (need_sync_) {
-    GELOGD("[%s] model need sync", context.GetNodeName());
-    GE_CHK_STATUS_RET_NOLOG(context.Synchronize());
-  }
   GE_CHK_STATUS_RET_NOLOG(context.RegisterCallback(done_callback));
   GELOGD("[%s] KnownNodeTask::ExecuteAsync success.", context.GetNodeName());
   RECORD_EXECUTION_EVENT(context.GetExecutionContext(), context.GetNodeName(), "[KnownNodeTaskExecuteAsync] End");
@@ -177,9 +171,7 @@ Status KnownNodeExecutor::LoadTask(const HybridModel &model, const NodePtr &node
 
   GE_CHK_STATUS_RET(davinci_model->Assign(ge_model), "KnownNodeExecutor::LoadTask davincimodel assign failed.");
 
-  bool need_sync = false;
-  GE_CHK_STATUS_RET_NOLOG(NeedSync(*ge_model, need_sync));
-  task = MakeShared<KnownNodeTask>(davinci_model, need_sync);
+  task = MakeShared<KnownNodeTask>(davinci_model);
   GE_CHECK_NOTNULL(task);
   GELOGI("[%s] KnownNodeExecutor::LoadTask success.", node->GetName().c_str());
   return SUCCESS;
@@ -194,21 +186,5 @@ Status KnownNodeExecutor::ExecuteTask(NodeTask &task, TaskContext &context,
   RECORD_EXECUTION_EVENT(context.GetExecutionContext(), context.GetNodeName(), "[KnownNodeExecutorExecuteTask] End");
   return SUCCESS;
 }
-
-Status KnownNodeExecutor::NeedSync(GeModel &ge_model, bool &need_sync) {
-  auto compute_graph = GraphUtils::GetComputeGraph(ge_model.GetGraph());
-  GE_CHECK_NOTNULL(compute_graph);
-  for (auto &node : compute_graph->GetAllNodes()) {
-    auto type = NodeUtils::GetNodeType(node);
-    if (type == GETNEXT) {
-      GELOGD("Contains GetNext node: %s", node->GetName().c_str());
-      need_sync = true;
-      return SUCCESS;
-    }
-  }
-
-  need_sync = false;
-  return SUCCESS;
-}
 }  // namespace hybrid
 }  // namespace ge
diff --git a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.h b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.h
index dfd6bbd0..2dde993b 100644
--- a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.h
+++ b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.h
@@ -27,8 +27,8 @@ class HybridModel;
 
 class KnownNodeTask : public NodeTask {
  public:
-  explicit KnownNodeTask(std::shared_ptr<DavinciModel> davinci_model, bool need_sync)
-      : davinci_model_(davinci_model), need_sync_(need_sync)
+  explicit KnownNodeTask(std::shared_ptr<DavinciModel> davinci_model)
+      : davinci_model_(davinci_model)
     {}
 
   ~KnownNodeTask() {}
@@ -39,7 +39,6 @@ class KnownNodeTask : public NodeTask {
  private:
   std::shared_ptr<DavinciModel> davinci_model_ = nullptr;
   bool load_flag_ = false;
-  bool need_sync_;
 };
 
 class KnownNodeExecutor : public NodeExecutor {
@@ -49,7 +48,6 @@ class KnownNodeExecutor : public NodeExecutor {
   Status ExecuteTask(NodeTask &task, TaskContext &context, const std::function<void()> &callback) const;
   ~KnownNodeExecutor() {}
  private:
-  static Status NeedSync(GeModel &ge_model, bool &need_sync);
   std::shared_ptr<DavinciModel> davinci_model_ = nullptr;
 };
 }  // namespace hybrid