diff --git a/ge/single_op/task/op_task.h b/ge/single_op/task/op_task.h
index a0d5b574..ac7e489c 100644
--- a/ge/single_op/task/op_task.h
+++ b/ge/single_op/task/op_task.h
@@ -172,6 +172,7 @@ class AiCpuBaseTask : public OpTask {
                       std::vector<GeTensorDesc> &output_desc,
                       std::vector<DataBuffer> &output_buffers,
                       rtStream_t stream) override;
+  virtual Status LaunchKernel(rtStream_t stream) = 0;
  protected:
   Status UpdateIoAddr(const std::vector<DataBuffer> &inputs, const std::vector<DataBuffer> &outputs);
   Status SetInputConst();