Created by: xiegegege

环境：paddle develop分支 non_local模型在某些epoch的训练结束后test之前会有报错，暂时没发现影响训练，但是影响体验

* Aborted at 1555279287 (unix time) try "date -d @1555279287" if you are using GNU date *

PC: @ 0x0 (unknown)

* SIGTERM (@0xca84) received by PID 105196 (TID 0x7f1e86ad8700) from PID 51844; stack trace: *

@ 0x7f20bf6c57e0 (unknown) @ 0x7f20bf6c3a00 sem_wait @ 0x7f20bfa1e5c8 PyThread_acquire_lock @ 0x7f20bf9d70b6 PyEval_RestoreThread @ 0x7f20bfa23c1b (unknown) @ 0x7f20bf9df1fd PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9debf0 PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9debf0 PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9588b5 (unknown) @ 0x7f20bf926d33 PyObject_Call @ 0x7f20bf9dbf22 PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9587e0 (unknown) @ 0x7f20bf926d33 PyObject_Call @ 0x7f20bf93574d (unknown) @ 0x7f20bf926d33 PyObject_Call @ 0x7f20bf992105 (unknown) @ 0x7f20bf926d33 PyObject_Call @ 0x7f20bf9db764 PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9debf0 PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9debf0 PyEval_EvalFrameEx @ 0x7f20bf9ded1e PyEval_EvalFrameEx @ 0x7f20bf9e11fd PyEval_EvalCodeEx @ 0x7f20bf9587e0 (unknown) @ 0x7f20bf926d33 PyObject_Call @ 0x7f20bf93574d (unknown) @ 0x7f20bf926d33 PyObject_Call