registry var type infer

Author: Yancey0623

paddle/fluid/operators/split_selected_rows_op.cc

@@ -59,6 +59,16 @@ class SplitSelectedRowsOp : public framework::OperatorWithKernel {
   }
 };
 
+class SplitSelectedRowsOpInferVarType : public framework::VarTypeInference {
+ public:
+  void operator()(const framework::OpDesc &op_desc,
+                  framework::BlockDesc *block) const override {
+    for (auto &out_var : op_desc.Output("Out")) {
+      block->Var(out_var)->SetType(framework::proto::VarType::SELECTED_ROWS);
+    }
+  }
+};
+
 class SplitSelectedRowsGradMaker : public framework::SingleGradOpDescMaker {
  public:
   using framework::SingleGradOpDescMaker::SingleGradOpDescMaker;
@@ -80,7 +90,8 @@ class SplitSelectedRowsGradMaker : public framework::SingleGradOpDescMaker {
 namespace ops = paddle::operators;
 REGISTER_OPERATOR(split_selected_rows, ops::SplitSelectedRowsOp,
                   ops::SplitSelectedRowsOpMaker,
-                  ops::SplitSelectedRowsGradMaker);
+                  ops::SplitSelectedRowsGradMaker,
+                  ops::SplitSelectedRowsOpInferVarType);
 REGISTER_OP_CPU_KERNEL(
     split_selected_rows,
     ops::SplitSelectedRowsOpKernel<paddle::platform::CPUPlace, float>);