Is there a pthreads pool available that works on Windows?

[carlkl]

see https://github.com/mreineck/pocketfft/issues/1#issuecomment-977757283 and https://github.com/mreineck/pocketfft/issues/1#issuecomment-977839096 Related msys2 scipy issue: https://github.com/msys2/MINGW-packages/issues/10164

Is pocketfft with thread support functional on windows? And if not, what has to be done to enable this functionality?

[mreineck]

I have not heard of problems with pocketfft on Windows so far, and my own CI tests for the successor package (https://github.com/litebird/ducc) seem to work fine with multiple threads on Windows. However those tests are using MSVC and do not require MinGW.

If someone could help me set up these tests for MinGW using Github Actions, I'm happy to do further analysis!

[carlkl]

@mreineck, this is a nice reference project for our question. If will check, if this works with msys2 g++ as well.

[mreineck]

Very good! The multi-threading part has been moved out of the FFT code in this project, but it is essentially hte same as in pocketfft (just with some more functionality put on top). I'm sure that if we can get one to work, we'll manage with the other as well.

[carlkl]

@mreineck, are there some simple test cases available as well?

[carlkl]

ups, found it in the repo...

[carlkl]

ducc0 binary wheels (Python-3.9 64bit) are available here for some time: https://my.hidrive.com/share/7gun0qvp2v

[peterbell10]

It might help if you could grab some stack traces of where it hangs. However, If the bug really is in the compiler and/or system libraries then I'm not sure what we could do.

[carlkl]

see https://github.com/msys2/MINGW-packages/issues/10164#issuecomment-979823333