提交 490a07f5 编写于 作者: Q qiaolongfei

add comment that out var of prefetch must be created in local scope

上级 a49ee22e
......@@ -169,6 +169,7 @@ class RequestPrefetch final : public RequestBase {
auto scope = request_->GetMutableLocalScope();
auto invar = scope->FindVar(in_var_name);
// out var must be created in local scope!
framework::Variable* outvar = scope->Var(out_var_name);
request_handler_->Handle(in_var_name, scope, invar, &outvar, out_var_name);
......
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