diff --git a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
index d79fcc86..bc0e5d93 100755
--- a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
+++ b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
@@ -123,10 +123,9 @@ Status KnownNodeTask::Init(TaskContext &context) {
       davinci_model_->SetKnownShapeGlobalStep(global_step);
     }
     load_flag_ = true;
-  } else {
-    GE_CHK_STATUS_RET(ModelManager::GetInstance()->DestroyAicpuKernel(davinci_model_->GetSessionId(),
-            davinci_model_->Id(), davinci_model_->SubModelId()), "KnownNodeTask::Init destroy aicpu kernel failed.");
   }
+  GE_CHK_STATUS_RET(ModelManager::GetInstance()->DestroyAicpuKernel(davinci_model_->GetSessionId(),
+          davinci_model_->Id(), davinci_model_->SubModelId()), "KnownNodeTask::Init destroy aicpu kernel failed.");
   GELOGI("[%s] KnownNodeExecutor::Init success.", context.GetNodeName());
   return SUCCESS;
 }
@@ -134,15 +133,6 @@ Status KnownNodeTask::Init(TaskContext &context) {
 Status KnownNodeTask::InitDavinciModel() {
   davinci_model_->InitRuntimeParams();
   GE_CHK_STATUS_RET(davinci_model_->InitVariableMem(), "init variable mem failed");
-  auto mem_size = davinci_model_->TotalMemSize();
-  if (mem_size > 0) {
-    auto buffer = TensorBuffer::Create(NpuMemoryAllocator::GetAllocator(), mem_size);
-    GE_CHECK_NOTNULL(buffer);
-    davinci_model_->UpdateMemBase(static_cast<uint8_t *>(buffer->GetData()));
-    GELOGI("KnownNodeTask::Init mem base is %p, size %lu.",
-           davinci_model_->GetRuntimeParam().mem_base, davinci_model_->GetRuntimeParam().mem_size);
-  }
-
   int32_t device_id = 0;
   GE_CHK_RT_RET(rtGetDevice(&device_id));
   davinci_model_->SetDeviceId(static_cast<uint32_t>(device_id));
diff --git a/tests/ut/ge/hybrid/known_node_executor_unittest.cc b/tests/ut/ge/hybrid/known_node_executor_unittest.cc
index 21b3faa9..5a3be8c3 100644
--- a/tests/ut/ge/hybrid/known_node_executor_unittest.cc
+++ b/tests/ut/ge/hybrid/known_node_executor_unittest.cc
@@ -51,8 +51,6 @@ TEST_F(UnknownNodeExecutorTest, test_init_davinci_model) {
   davinci_model->SetDeviceId(0);
   davinci_model->SetKnownNode(true);
 
-  MemManager::Instance().Initialize(std::vector<rtMemType_t>({RT_MEMORY_HBM}));
-
   auto ge_model = make_shared<GeModel>();
   AttrUtils::SetInt(ge_model, ATTR_MODEL_VAR_SIZE, 0);
   AttrUtils::SetInt(ge_model, ATTR_MODEL_MEMORY_SIZE, 1024);
@@ -61,5 +59,4 @@ TEST_F(UnknownNodeExecutorTest, test_init_davinci_model) {
   KnownNodeTaskMock mock(davinci_model);
   EXPECT_CALL(mock, DoInitDavinciModel).WillOnce(::testing::Return(SUCCESS));
   ASSERT_EQ(mock.InitDavinciModel(), SUCCESS);
-  MemManager::Instance().Finalize();
 }
\ No newline at end of file