未验证 提交 950aec55 编写于 作者: C chengduo 提交者: GitHub

It doesn't need sync when fetch_list nit not empty (#17201)

test=develop
上级 a72907bb
......@@ -15,6 +15,7 @@
#include "paddle/fluid/framework/details/scope_buffered_ssa_graph_executor.h"
#include <stdexcept>
#include <string>
#include <utility>
#include <vector>
#include "paddle/fluid/framework/variable_helper.h"
#include "paddle/fluid/platform/profiler.h"
......@@ -66,16 +67,8 @@ FeedFetchList ScopeBufferedSSAGraphExecutor::Run(
platform::RecordEvent e("ScopeBufferedSSAGraphExecutorAfterRun");
++drop_scope_counter_;
bool stream_end = false;
if (!fetch_tensors.empty()) {
WaitComputationalStreams();
stream_end = true;
}
if (drop_scope_counter_ == strategy_.num_iteration_per_drop_scope_) {
if (!stream_end) {
WaitComputationalStreams();
}
for (auto &scope : local_scopes_) {
auto &local_scope =
......
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