Merged PR 1082: Save the best model

core/evaluation.py

@@ -49,6 +49,7 @@ class Evaluation():
         '''      
         
         self.worker_trainer = req['worker_trainer']
+        save_model = False 
         if metric_logger is None:
             metric_logger = run.log
 
@@ -72,16 +73,19 @@ class Evaluation():
                 if value['higher_is_better']:
                     if self.metrics[key]['value'] > req[attr]: 
                         req[attr] = self.metrics[key]['value']
+                        save_model = True
                 else:
                     if self.metrics[key]['value'] < req[attr]:
                         req[attr] = self.metrics[key]['value']
+                        save_model = True
                 
-                if mode == 'val':
+                if save_model and mode == 'val':
                     self.worker_trainer.save(
                         model_path=self.model_path,
                         token=str('best_'+ mode +'_'+key),
                         config=self.config['server_config']
                     )
+                    save_model = False
         
         return req