add mvapich support for intel scalapack_libs

[khsa1]

The correct scalapack libs are set for mvapich2 with Intel but mvapich@3.0 uses mvapich, not mvapich2.

[alalazo]

LGTM. Waiting for @rscohn2 to comment. Do we need to change anything in OneAPI packages, along the same lines?

[khsa1]

I ran into this issue while building cp2k with oneapi. I'm not sure what the interaction is between the intel and oneapi build systems. Maybe someone on the spack team can provide more insight?

[rscohn2]

I ran into this issue while building cp2k with oneapi. I'm not sure what the interaction is between the intel and oneapi build systems. Maybe someone on the spack team can provide more insight?

oneapi has a separate build system and the equivalent logic is in the intel-oneapi-mkl package:

spack/var/spack/repos/builtin/packages/intel-oneapi-mkl/package.py

Line 223 in b33e2d0

for m in [

It tries to guess based on package name, and also has mpi_family variant for explicit control if the package is not recognized. We are missing mvapich and mvapich2. Could you add them?

[khsa1]

Sure, just pushed that

[rscohn2]

Thanks!