Update README.md

README.md

@@ -95,8 +95,8 @@ python3 train.py --adadelta --trainRoot ../Datasets/Synth90k/MJ_LMDB --valRoot .
 #以单机四卡为例子
 export HSA_FORCE_FINE_GRAIN_PCIE=1
 export USE_MIOPEN_BATCHNORM=1
-export HIP_VISIBLE_DEVICES=6,7
-python -m torch.distributed.launch --nproc_per_node=2 train_ddp.py --adadelta --trainRoot ../Datasets/Synth90k/MJ_LMDB --valRoot ../Datasets/Synth90k/IIIT5K_lmdb --cuda --ngpu 2 --batchSize 64 --workers 8 
+export HIP_VISIBLE_DEVICES=0,1,2,3
+python -m torch.distributed.launch --nproc_per_node=4 train_ddp.py --adadelta --trainRoot ../Datasets/Synth90k/MJ_LMDB --valRoot ../Datasets/Synth90k/IIIT5K_lmdb --cuda --ngpu 4 --batchSize 64 --workers 8 
 ```
 
 ## 推理