imporve log

Former-commit-id: 47e17dd689

src/llamafactory/chat/hf_engine.py

@@ -63,7 +63,7 @@ class HuggingfaceEngine(BaseEngine):
         try:
             asyncio.get_event_loop()
         except RuntimeError:
-            logger.warning_once("There is no current event loop, creating a new one.")
+            logger.warning_rank0_once("There is no current event loop, creating a new one.")
             loop = asyncio.new_event_loop()
             asyncio.set_event_loop(loop)