diff --git a/examples/aishell/asr1/conf/conformer.yaml b/examples/aishell/asr1/conf/conformer.yaml
index 490b577f..775a4527 100644
--- a/examples/aishell/asr1/conf/conformer.yaml
+++ b/examples/aishell/asr1/conf/conformer.yaml
@@ -65,7 +65,7 @@ batch_bins: 0
 batch_frames_in: 0
 batch_frames_out: 0
 batch_frames_inout: 0
-num_workers: 8
+num_workers: 2
 subsampling_factor: 1
 num_encs: 1
 
diff --git a/examples/callcenter/asr1/run.sh b/examples/callcenter/asr1/run.sh
index 86730ce1..0c7ffc1e 100644
--- a/examples/callcenter/asr1/run.sh
+++ b/examples/callcenter/asr1/run.sh
@@ -4,7 +4,7 @@ source path.sh
 
 gpus=0,1,2,3
 stage=0
-stop_stage=100
+stop_stage=50
 conf_path=conf/conformer.yaml
 decode_conf_path=conf/tuning/decode.yaml
 avg_num=20
@@ -40,7 +40,7 @@ if [ ${stage} -le 4 ] && [ ${stop_stage} -ge 4 ]; then
     CUDA_VISIBLE_DEVICES=0 ./local/align.sh ${conf_path} ${decode_conf_path} exp/${ckpt}/checkpoints/${avg_ckpt} || exit -1
 fi
 
-if [ ${stage} -le 5 ] && [ ${stop_stage} -ge 5 ]; then
+if [ ${stage} -le 51 ] && [ ${stop_stage} -ge 51 ]; then
     # export ckpt avg_n
     CUDA_VISIBLE_DEVICES= ./local/export.sh ${conf_path} exp/${ckpt}/checkpoints/${avg_ckpt} exp/${ckpt}/checkpoints/${avg_ckpt}.jit
 fi
diff --git a/examples/librispeech/asr2/local/test.sh b/examples/librispeech/asr2/local/test.sh
index bf6428d6..8cf3b52c 100755
--- a/examples/librispeech/asr2/local/test.sh
+++ b/examples/librispeech/asr2/local/test.sh
@@ -21,7 +21,7 @@ bpemodel=${bpeprefix}.model
 config_path=conf/transformer.yaml
 decode_config_path=conf/decode/decode_base.yaml
 dict=data/lang_char/${train_set}_${bpemode}${nbpe}_units.txt
-ckpt_prefix=exp/transformer/checkpoints/init
+ckpt_prefix=
 
 source ${MAIN_ROOT}/utils/parse_options.sh || exit 1;