Update app.py

app.py

@@ -196,7 +196,7 @@ def load_and_prepare_model():
     #pipe.unet.to(memory_format=torch.channels_last)
     #pipe.enable_vae_tiling()
    #pipe.unet = torch.compile(pipe.unet, backend="hidet")
-    pipe.unet = torch.compile(pipe.unet, backend="tensorrt", dynamic=False)
+    pipe.unet = torch.compile(pipe.unet, backend="cudagraphs", dynamic=False)
     pipe.to(device=device, dtype=torch.bfloat16)
 
     return pipe