Xformers

Xformers library is an optional way to speedup your image generation.

There are not binaries for Windows except for one specific configuration, but you can build it yourself. A guide from an anonymous user:

GUIDE ON HOW TO BUILD XFORMERS also includes how to uncuck yourself from sm86 restriction on voldy's new commit

1. go to the webui directory
2. source ./venv/bin/activate
3. cd repositories
3. git clone /~https://github.com/facebookresearch/xformers.git
4. cd xformers
5. git submodule update --init --recursive
6. pip install -r requirements.txt
7. pip install -e .
If you encounter some error about torch not being built with your cuda version blah blah, then try:
pip install setuptools==49.6.0

After step 7, just wait like 30 minutes for everything to build and you're done.

Then go back to modules/sd_hijack.py and search for this text and delete it:

and torch.cuda.get_device_capability(shared.device) == (8, 6)