diff --git a/BERT/run_classifier.py b/BERT/run_classifier.py
index 353cbec37e537cbd5c176628344304919ef40622..da15071b1c0d37173cf524060215a04fcd96bd02 100644
--- a/BERT/run_classifier.py
+++ b/BERT/run_classifier.py
@@ -279,10 +279,10 @@ def main(args):
             exec_strategy=exec_strategy,
             build_strategy = build_strategy,
             main_program=train_program)
-        num_trainers = int(os.environ.get('PADDLE_TRAINERS_NUM', 1))
-        if num_trainers > 1:
-            train_data_generator = fluid.contrib.reader.distributed_batch_reader(
-                train_data_generator)
+        # num_trainers = int(os.environ.get('PADDLE_TRAINERS_NUM', 1))
+        # if num_trainers > 1:
+        #     train_data_generator = fluid.contrib.reader.distributed_batch_reader(
+        #         train_data_generator)
                         
         train_pyreader.decorate_tensor_provider(train_data_generator)
     else: