diff -uprN a/configs/rec/rec_mv3_none_none_ctc.yml b/configs/rec/rec_mv3_none_none_ctc.yml
--- a/configs/rec/rec_mv3_none_none_ctc.yml	2022-09-26 14:11:35.140784112 +0000
+++ b/configs/rec/rec_mv3_none_none_ctc.yml	2022-09-26 14:14:10.580789671 +0000
@@ -1,5 +1,5 @@
 Global:
-  use_gpu: True
+  use_gpu: False
   epoch_num: 72
   log_smooth_window: 20
   print_batch_step: 10
@@ -90,5 +90,5 @@ Eval:
   loader:
     shuffle: False
     drop_last: False
-    batch_size_per_card: 256
-    num_workers: 8
+    batch_size_per_card: 1
+    num_workers: 0