Spack section

[cedricchevalier19]

Try explain:

• how to compile with Spack
• how to make a Kokkos dependent package

[dalg24]

I don't quite understand that sentence.
Does that mean Spack is auto-detecting your CPU arch and passing flags to Kokkos?

[cedricchevalier19]

Yes, Spack always sets CPU micro-architecture and we follow this setting. It is most likely autoselected, but it can be set by hand, too.

[tpadioleau]

Yes my understanding spack auto detects it to give a default value to arch. Then the Kokkos recipe does the mapping to the corresponding Kokkos ARCH option.

As @cedricchevalier19 said, if needed you can manually specify arch.

[tpadioleau]

That looks already good to me. I have a question regarding how far should we go:

• do we explain other packages like Kokkos Kernels, Kokkos-fft, Kokkos Tools... ? Maybe only Kokkos Tools has some specificity ?
• I see you mention the develop branch. Maybe we should write the text having spack version 1 in mind ?

[tpadioleau]

Looks almost good to me.

[dalg24]

Thank you!