update bnb log

Signed-off-by: jiqing-feng <[email protected]>

Author: jiqing-feng

bitsandbytes/cextension.py

@@ -298,7 +298,16 @@ def get_native_library() -> BNBNativeLibrary:
 
 
 try:
-    lib = get_native_library()
+    if hasattr(torch, "xpu") and torch.xpu.is_available():
+        if not (ipex_cpu or ipex_xpu):
+            logger.warning(
+                "Detected Intel XPU but no Intel Extension for PyTorch (IPEX) installed. "
+                "IPEX is recommended for Intel XPU support in bitsandbytes to get better performance. "
+                "Please check the installation doc to install `intel_extension_for_pytorch`. "
+            )
+        lib = ErrorHandlerMockBNBNativeLibrary("XPU does not need native library")
+    else:
+        lib = get_native_library()
 except Exception as e:
     error_msg = str(e)
     if not (ipex_cpu or ipex_xpu):