export HSA_FORCE_FINE_GRAIN_PCIE=1
 export FLAGS_cudnn_batchnorm_spatial_persistent=1 
 export NCCL_MAX_NCHANNELS=20
 export NCCL_MIN_NCHANNELS=20
 export NCCL_P2P_LEVEL=SYS
  
 # 获取训练时间戳 
 # recommended paddle.__version__ == 2.0.0
 #wget -P ./pretrain_models/ https://paddleocr.bj.bcebos.com/pretrained/MobileNetV3_large_x0_5_pretrained.pdparams

 python3  tools/eval.py  -c configs/det/det_mv3_db.yml 
 #-o  Global.use_amp=True