update by comment

python/paddle/fluid/distribute_transpiler.py

@@ -412,12 +412,7 @@ class DistributeTranspiler:
                 tmpvar = s_prog.global_block().create_var(
                     name=var.name, persistable=var.persistable, type=var.type)
             else:
-                tmpvar = s_prog.global_block().create_var(
-                    name=var.name,
-                    persistable=var.persistable,
-                    type=var.type,
-                    dtype=var.dtype,
-                    shape=var.shape)
+                tmpvar = s_prog.global_block().clone_variable(var)
             created_var_map[var.name] = tmpvar
 
         # 2. rename op outputs
@@ -713,18 +708,13 @@ class DistributeTranspiler:
                 varlist = [varlist]
 
             for var in varlist:
-                print("##### deal var: ", var)
                 if var.type == core.VarDesc.VarType.STEP_SCOPES:
                     program.global_block().create_var(
                         name=var.name,
                         persistable=var.persistable,
                         type=var.type)
                 else:
-                    program.global_block().create_var(
-                        name=var.name,
-                        persistable=var.persistable,
-                        dtype=var.dtype,
-                        shape=var.shape)
+                    program.global_block().clone_variable(var)
 
         optimize_block.append_op(
             type=opt_op.type,