AttributeError: 'ImageModelDescriptor' object has no attribute 'cpu'

[WangGosh]

I deployed ComfyUI on the DSW server of Alibaba Cloud. When I tried to zoom in with the enlarged model, it displayed this error

[WangGosh]

pytorch2.1.2tensorflow2.14.0-gpu-py310-cu121-ubuntu22.04
This is my system environment

[Moxie1776]

I stopped using a1111 for a few months. When I tried it today again today, I'm getting the same error...

[speters]

Can confirm this when trying out the DemonCore Workflow from Civitai, which depends on these nodes for upscaling.

After having searched and found a hint on stackoverflow, I made a desperate attempt that finally worked:

diff --git a/nodes/functions_upscale.py b/nodes/functions_upscale.py
index 2c25f03..a6c748c 100644
--- a/nodes/functions_upscale.py
+++ b/nodes/functions_upscale.py
@@ -54,7 +54,8 @@ def upscale_with_model(upscale_model, image):
             if tile < 128:
                 raise e

-    upscale_model.cpu()
+    device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+    upscale_model.to(device)
     s = torch.clamp(s.movedim(-3,-1), min=0, max=1.0)
     return s