fix force syncbn sequentail not work (#56160)

a1e2c63c · LielinJiang · GitHub · b2261e09 · a1e2c63c
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paddle/fluid/eager/backward.cc paddle/fluid/eager/backward.cc +1 -1

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--- a/paddle/fluid/eager/backward.cc
+++ b/paddle/fluid/eager/backward.cc
@@ -424,8 +424,8 @@ void Backward(const std::vector<paddle::Tensor>& tensors,  // outputs
  VLOG(3) << "Run in Backward";
  paddle::platform::RecordEvent backward_record_event(
      "backward", paddle::platform::TracerEventType::UserDefined, 1);
-  egr::Controller::Instance().ClearForceSequentialNodes();
  RunBackward(tensors, grad_tensors, retain_graph);
+  egr::Controller::Instance().ClearForceSequentialNodes();
  phi::autotune::AutoTuneStatus::Instance().Update();
 }