pip install cufinufft on windows

[Divisible8737]

Is this supposed to work on windows?

From the latest stable version of Anaconda on Windows 11 I get

(base) PS C:\> pip install cufinufft
ERROR: Could not find a version that satisfies the requirement cufinufft (from versions: none)
ERROR: No matching distribution found for cufinufft

[lu1and10]

I guess only linux wheels are uploaded, https://pypi.org/project/cufinufft/#files

[ahbarnett]

Are OSX and Windows pypi something we could do (would it happen automatically with nanobind/cmake?)

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[janden]

I'm not sure we've been able to get cuFinufft to build on those platforms, to be honest. I think Garrett looked into it back in the day, but I think we decided that trying to figure out the CUDA compilation steps under Windows would be quite a lot of work and we didn't have any Windows users at that point. macOS might be easier to reach. Things may be easier with cmake, since hopefully that would take care of a lot of the Windows stuff.

[turbotage]

@janden About a year ago or so, when I was on Windows (I'm on Linux now), I forked finufft and managed to build cufinufft on Windows. I also added some install steps so finufft could be better consumed in other CMake projects. I don't remember the tricks that finally made it build. But if you are interested, feel free to read my CMakeLists, CMakePresets, and so on here. I think one key thing was that static libs just doesn't work on windows with cuda.

The transition to cmake was great! But I still think some improvements in the build/install setup would be great! Like fixing build on Windows as a start, then adding install steps so finufft can be consumed via find_package(...) and target_link_libraries(...) in cmake. Then perhaps adding ports on popular package managers like vcpkg. This would make it so much nicer to consume and link against.

Perhaps this should be it's own issue :D

[DiamonDinoia]

I think this can be incorporated in #497 then it should be okay.

[janden]

I agree this is something we should look into. Currently, however, I'm not sure we have access to a Windows computer with a GPU that we can use to test things on.

[DiamonDinoia]

I can test it, once you make it work on linux I can give it a go.

[janden]

Great. Thanks!