update utils.py

dygraph/utils/utils.py

@@ -52,7 +52,11 @@ def load_pretrained_model(model, pretrained_model):
         logging.info('Load pretrained model from {}'.format(pretrained_model))
         if os.path.exists(pretrained_model):
             ckpt_path = os.path.join(pretrained_model, 'model')
+            try:
                 para_state_dict, _ = fluid.load_dygraph(ckpt_path)
+            except:
+                para_state_dict = fluid.load_program_state(pretrained_model)
+
             model_state_dict = model.state_dict()
             keys = model_state_dict.keys()
             num_params_loaded = 0