use sync copy (#17291)

test=develop

use sync copy (#17291)
test=develop
516317cf · chengduo · GitHub · 2c446271 · 516317cf
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Showing with 1 addition and 2 deletion

paddle/fluid/framework/details/fetch_op_handle.cc paddle/fluid/framework/details/fetch_op_handle.cc +1 -2

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--- a/paddle/fluid/framework/details/fetch_op_handle.cc
+++ b/paddle/fluid/framework/details/fetch_op_handle.cc
@@ -63,8 +63,7 @@ void FetchOpHandle::RunImpl() {
    auto &t = var->Get<framework::LoDTensor>();
    if (platform::is_gpu_place(t.place())) {
 #ifdef PADDLE_WITH_CUDA
-      TensorCopy(t, cpu, *dev_ctxes_.at(t.place()), &tensors_[i]);
+      TensorCopy(t, cpu, &tensors_[i]);
-      dev_ctxes_.at(t.place())->Wait();
 #endif
    } else {
      tensors_[i].ShareDataWith(t);