Open danthe3rd opened 1 year ago
CUTLASS is planning to have official Windows support later this year
Quick FYI: Cutlass 3.2 has a bullet point on support for windows build, I haven't had a chance to try building flash with 3.2 but at least for 3.1 still seeing errors around some of the copy utils.
Quick FYI: Cutlass 3.2 has a bullet point on support for windows build, I haven't had a chance to try building flash with 3.2 but at least for 3.1 still seeing errors around some of the copy utils.
Awesome! I'm hoping to find time to try Cutlass 3.2 soon!
I have tried with CUDA 12.1 on Windows 11, VS 2022 and no luck so far to build FAv2.
@danthe3rd have you found something?
@Panchovix do you know what version of CUTLASS you used?
@Panchovix do you know what version of CUTLASS you used?
Sadly I don't know how to check. I just installed CUDA 11.8/12.1 independently, assigned each env variable for each torch version, and when trying to install, it fail with this, based if compiling from source or installing.
From source:
Sadly I don't know how to check. I just installed CUDA 11.8/12.1 independently, assigned each env variable for each torch version, and when trying to install, it fail with this, based if compiling from source or installing.
Technically this repo should pull cutlass @ 34fd980 if you cloned it recently, which I think should have been 3.2
Sadly I don't know how to check. I just installed CUDA 11.8/12.1 independently, assigned each env variable for each torch version, and when trying to install, it fail with this, based if compiling from source or installing.
Technically this repo should pull cutlass @ 34fd980 if you cloned it recently, which I think should have been 3.2
I have cloned it every day I think, but the issue persists, so I'm not sure what would be happening. The error log is not that conclusive for me.
If someone found the fix, please tell us how to make it work :(
Flashv2 is based on CUTLASS v3, which does not support windows at the moment. I have a bunch of errors - I'll try to dig a bit further, might be related to MSVC version, will report if I manage to get it to work.
Would be curious if anyone got it to work there (I don't have a windows machine to test things out)