diff --git a/PTDN/test_train_inference_python.sh b/PTDN/test_train_inference_python.sh
index 7349eac915c833d563009f9ece3824aeb61998f6..7ea8665be5a863fc0bac4376e257cc593a800eea 100644
--- a/PTDN/test_train_inference_python.sh
+++ b/PTDN/test_train_inference_python.sh
@@ -239,6 +239,7 @@ else
     for gpu in ${gpu_list[*]}; do
         use_gpu=${USE_GPU_KEY[Count]}
         Count=$(($Count + 1))
+        ips=""
         if [ ${gpu} = "-1" ];then
             env=""
         elif [ ${#gpu} -le 1 ];then
@@ -305,10 +306,10 @@ else
                 set_save_model=$(func_set_params "${save_model_key}" "${save_log}")
                 if [ ${#gpu} -le 2 ];then  # train with cpu or single gpu
                     cmd="${python} ${run_train} ${set_use_gpu}  ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config} "
-                elif [ ${#gpu} -le 15 ];then  # train with multi-gpu
-                    cmd="${python} -m paddle.distributed.launch --gpus=${gpu} ${run_train} ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config}"
+                elif [ ${#ips} -le 26 ];then  # train with multi-gpu
+                    cmd="${python} -m paddle.distributed.launch --gpus=${gpu} ${run_train} ${set_use_gpu} ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config}"
                 else     # train with multi-machine
-                    cmd="${python} -m paddle.distributed.launch --ips=${ips} --gpus=${gpu} ${run_train} ${set_save_model} ${set_pretrain} ${set_epoch} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config}"
+                    cmd="${python} -m paddle.distributed.launch --ips=${ips} --gpus=${gpu} ${set_use_gpu} ${run_train} ${set_save_model} ${set_pretrain} ${set_epoch} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config}"
                 fi
                 # run train
                 eval "unset CUDA_VISIBLE_DEVICES"