fix log

fluid/PaddleNLP/language_model/lstm/train.py

@@ -286,8 +286,9 @@ def train():
         print("train ppl", ppl[0])
 
         if epoch_id == max_epoch - 1 and args.enable_ce:
-            print("lstm_language_model_duration\t%s" % (total_time / max_epoch))
-            print("lstm_language_model_loss\t%s" % ppl[0])
+            print("ptblm\tlstm_language_model_duration\t%s" %
+                        (total_time / max_epoch))
+            print("ptblm\tlstm_language_model_loss\t%s" % ppl[0])
 
         model_path = os.path.join("model_new/", str(epoch_id))
         if not os.path.isdir(model_path):