After update, xformers is missing

[doogyhatts]

This is the second time that has happened since yesterday.

I found out that after updating ComfyUI, it now uses torch 2.3.0, which has no compatible version of xformers, so the log complained that I had no xformers installed. So I downgraded torch to 2.2.2, torchvision to 0.17.2, and re-installed xformers 0.0.25.post1.

I will refrain from updating ComfyUI until the next xformers release is ready.

[mayo-Z]

+1

[Fexcron]

+1

[askmyteapot]

I've found that Pytorch attention is slightly faster than xformers now anyway. Especially since pytorch 2.3.0

[robinjhuang]

xformer is no longer shipped with standalone windows build. Is xformers is needed, please follow this issue: https://github.com/comfyanonymous/ComfyUI/issues/1065

[Amit30swgoh]

Yes, xformers is missing. To install xformers, simply run:

pip install xformers