fix rec forward bug

ppcls/engine/engine.py

@@ -51,6 +51,11 @@ class Engine(object):
         self.config = config
         self.eval_mode = self.config["Global"].get("eval_mode",
                                                    "classification")
+        if "Head" in self.config["Arch"]:
+            self.is_rec = True
+        else:
+            self.is_rec = False
+
         # init logger
         self.output_dir = self.config['Global']['output_dir']
         log_file = os.path.join(self.output_dir, self.config["Arch"]["name"],

ppcls/engine/train/train.py

@@ -79,7 +79,7 @@ def train_epoch(trainer, epoch_id, print_batch_step):
 
 
 def forward(trainer, batch):
-    if trainer.eval_mode == "classification":
+    if not trainer.is_rec:
         return trainer.model(batch[0])
     else:
         return trainer.model(batch[0], batch[1])