fix: throw warnings if xformers or flash-attn cant be used

configuration_clip.py

@@ -295,7 +295,11 @@ class JinaCLIPConfig(PretrainedConfig):
         else:
             self.torch_dtype = torch_dtype
 
-        if not self.use_text_flash_attn or not torch.cuda.is_available():
+        use_text_flash_attn = (
+            self.use_text_flash_attn if self.use_text_flash_attn is not None
+            else self.text_config.hf_model_config_kwargs.get('use_flash_attn', False)
+        )
+        if not use_text_flash_attn or not torch.cuda.is_available():
             self.torch_dtype = torch.float32
 
     @classmethod