fix cuda to npu

main.py

@@ -7,6 +7,7 @@ import time
 from pathlib import Path
 import numpy as np
 from sentence_transformers import SentenceTransformer
+import torch
 
 def parse_args():
     p = argparse.ArgumentParser(
@@ -24,11 +25,15 @@ def parse_args():
 
 def auto_device(user_device: str | None) -> str:
     if user_device:
+        if user_device == "cuda" and not torch.cuda.is_available():
+            if torch.npu.is_available():
+                return "npu"
         return user_device
     try:
-        import torch
         if torch.cuda.is_available():
             return "cuda"
+        if torch.npu.is_available():
+            return "npu"
     except Exception:
         pass
     return "cpu"