Installation Issue with Xformers

[6630507]

On trying to install this repo, it seems there is a problem with the dependency

conda install xformers -c xformers/label/dev

Specifically, there does not seem to be xformers development binaries currently available for Pytorch < 2.1

conda search xformers -c xformers/label/dev
Loading channels: done
# Name                       Version           Build  Channel             
xformers               0.0.24.dev721 py310_cu11.8.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev721 py310_cu12.1.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev721 py39_cu11.8.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev721 py39_cu12.1.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev722 py310_cu11.8.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev722 py310_cu12.1.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev722 py39_cu11.8.0_pyt2.1.2  xformers/label/dev  
xformers               0.0.24.dev722 py39_cu12.1.0_pyt2.1.2  xformers/label/dev  

I'm attempting to install from source, but not sure if this will contain the development binaries

# (Optional) Makes the build much faster
pip install ninja
# Set TORCH_CUDA_ARCH_LIST if running and building on different GPU types
pip install -v -U git+https://github.com/facebookresearch/xformers.git@main#egg=xformers
# (this can take dozens of minutes)