clear old var in scope, test=develop (#24976)

5 years ago · d152d7231e
parent 53d563a0fe
commit d152d7231e
1 changed files with 4 additions and 0 deletions
--- a/paddle/fluid/operators/run_program_op.h
+++ b/paddle/fluid/operators/run_program_op.h
@ -198,7 +198,11 @@ class RunProgramOpKernel : public framework::OpKernel<T> {

    auto exe_ctx = exe.Prepare(*program, 0, skip_vars);

+    // get scope and clear old vars
    framework::Scope &scope = *(out_scope_vec->front());
+    auto local_vars = scope.LocalVarNames();
+    scope.EraseVars(local_vars);
+
    // share input_vars & parameters into scope
    details::ShareVarsIntoScope(input_vars, input_var_names, &scope);
    details::ShareVarsIntoScope(param_vars, param_names, &scope);