cant install xformer without changing torch version

[elhamAm]

❓ Questions and Help

the below command installs torch 2.0 but I want to use the torch that I have which is 1.11.0+cu113. I dont want the torch version to change

pip install -v -U git+https://github.com/facebookresearch/xformers.git@main#egg=xformers

please help

[Aricling]

Also have the same problem. Would appreciate it if anyone can solve it

[danthe3rd]

Hi, This is not supported, as we require torch > 1.12 at the moment (and most likely 2.0 at some point soon). However you can try to install from source with torch 1.11 and it might work.

(1) Clone the repo

git clone --recursive https://github.com/facebookresearch/xformers.git

(2) Remove the pytorch version requirement in requirements.txt (3) Try installing with

cd xformers
python setup.py develop

[soulteary]

refs: https://github.com/facebookresearch/xformers/issues/960, hope it helps

[zhjj666]

python setup.py develop

RuntimeError: No such operator aten::_efficient_attention_forward