Conda Package for heFFTe

[ax3l]

Hi,

We are in the process of integrating heFFTe into the mainline of WarpX. As part of this, we want to make sure we can compile our desktop distributions (Linux/macOS/Windows) with all features.

We distribute for desktop via conda using the conda-forge packaging index.

Since heFFTe did not yet have a package in conda-forge, I will add one. Please let me know if you like to be listed as co-maintainers for it: conda-forge/staged-recipes#26633

(We also ship via other package managers, such as Spack for desktop and HPC, which already has a heFFTe package.)

[mkstoyanov]

@ax3l Thanks for contributing.

Please go ahead and list me as a maintainer on the conda package. I don't have experience with conda but I may be able to preempt potential heFFTe issues.

[ax3l]

Cool, thanks a lot!
Done!

Can you please comment something like

I agree to be listed as feedstock maintainer.

on conda-forge/staged-recipes#26633 ? 🙏

[mkstoyanov]

@ax3l can we close this one? You can always open a new one if needed.

[ax3l]

I am still working on this package but have issues building heFFTe with FFTW on Linux:
conda-forge/staged-recipes#26633 (comment)

I think the CMake scripts in heFFTe need an overhaul for FFTW, but I have not yet had time to contribute them.
I have a very general, multi-platform FFTW script in BLAST codes that addresses various defficiencies of the FFTW upstream install methods that we might be able to reuse for heFFTe:
https://github.com/ECP-WarpX/WarpX/blob/development/cmake/dependencies/FFT.cmake