fix some error

tools/program.py

@@ -159,7 +159,8 @@ def train(config,
           eval_class,
           pre_best_model_dict,
           logger,
-          vdl_writer=None):
+          vdl_writer=None,
+          scaler=None):
     cal_metric_during_train = config['Global'].get('cal_metric_during_train',
                                                    False)
     log_smooth_window = config['Global']['log_smooth_window']

tools/train.py

@@ -122,7 +122,7 @@ def main(config, device, logger, vdl_writer):
     # start train
     program.train(config, train_dataloader, valid_dataloader, device, model,
                   loss_class, optimizer, lr_scheduler, post_process_class,
-                  eval_class, pre_best_model_dict, logger, vdl_writer)
+                  eval_class, pre_best_model_dict, logger, vdl_writer, scaler)
 
 
 def test_reader(config, device, logger):