fix arguments bug (#395)

Author: Jintao-Huang

README_CN.md

@@ -196,7 +196,6 @@ torch.cuda.empty_cache()
 app_ui_main(infer_args)
 ```
 
-
 ### 特性
 - 支持的SFT方法: [lora](https://arxiv.org/abs/2106.09685), [qlora](https://arxiv.org/abs/2305.14314), [longlora](https://arxiv.org/abs/2309.12307), [qalora](https://arxiv.org/abs/2309.14717), 全参数微调, 部分参数微调.
 - 支持的特性: 模型量化, DDP, 模型并行, gradient checkpointing, 支持推送ModelScope Hub, 自定义数据集, 多模态和Agent SFT, 多轮对话, DPO, 自我认知微调, ...

swift/llm/utils/argument.py

@@ -387,6 +387,8 @@ def __post_init__(self) -> None:
         elif not support_gradient_checkpointing and self.gradient_checkpointing:
             logger.warning(
                 f'{self.model_type} not support gradient_checkpointing.')
+        if self.neftune_noise_alpha <= 0:
+            self.neftune_noise_alpha = None
 
 
 @dataclass
@@ -540,8 +542,6 @@ def __post_init__(self) -> None:
             self.stream = False
             logger.info('Setting self.stream: False')
         self.infer_media_type = template_info.get('infer_media_type', 'none')
-        if self.neftune_noise_alpha <= 0:
-            self.neftune_noise_alpha = None
 
     @staticmethod
     def check_ckpt_dir_correct(ckpt_dir) -> bool: