fix loss normalization for ddp training

haoneng.lhn

2023-12-08 ace42e5043be992c3a324fc637ba0594f10ad3b6

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export FUNASR_RUNTIME_ROOT=`pwd`/../
export PATH=$FUNASR_RUNTIME_ROOT/onnxruntime/build/bin:$PWD:$PATH
export LC_ALL=C