Blocksparse is not available: the current GPU does not expose Tensor cores

[scarygliders]

Attempting to run this using my nvidia RTX 2070 Super (Turing architecture), which can run other stuff like stable-diffusion-webui or koboldcpp just fine...

> python server.py
Blocksparse is not available: the current GPU does not expose Tensor cores
Traceback (most recent call last):
  File "path/fontogen/server.py", line 10, in <module>
    from sampler import create_sampler
  File "path/fontogen/sampler.py", line 11, in <module>
    from model.model import FontogenModule
  File "path/fontogen/model/model.py", line 11, in <module>
    from xformers.components.attention import BlockSparseAttention
ImportError: cannot import name 'BlockSparseAttention' from 'xformers.components.attention' (path/.virtualenvs/fontogen-Ir94UGpw/lib/python3.10/site-packages/xformers/components/attention/__init__.py)

Looking at the Blocksparse information, the nvidia Turing architecture isn't mentioned, so perhaps I am unable to try out fontogen?

[behdad]

I followed the instructions on the homepage and hit this same error.

[mpybkk]

This is where I am at also, on RTX 3090 Ti and looking to test out some training. Windows 10, also can run Stable Diffusion / Automatic111.

Any ideas how to resolve this?