omega-h: add v11.2.0-scorec and a python variant

[Sichao25]

This PR adds Omega_h version 11.2.0-scorec. It also supports python variant from now.

[bernhardkaindl]

@Sichao25 as agreed with @cwsmith in #4672, I merged the pre-existing earlier PR first because of the git conflict between them and I think it is easier to rebase this new PR on top of the merge: #4672 (review)

As the view of this PR on Github now shows, the conflict now needs to be resolved in this PR. Can you do that?

If possible, it would be great if you could do it with a git rebase on top of the latest develop branch (not using a git merge) because then your branch keep the real git history of develop as base, and your changes stay on top of the history, which can make the review much easier if one needs to look at your commits to the PR. Thanks, Bernhard

PS: Also, there seems to be a libomega_h.so: undefined reference to nc_set_log_level'triggered byspack install omega-h +exodus +mpi +sharednow. It looks like onlynetcdf-cprovides it butparallel-netcdfnot, which I saw used in the build log of+exodus +mpi`.

[jacobmerson]

@Sichao25 please add the following line to this PR which with the updates in SCOREC/omega_h#228 will enable the PyOmega_h python package to directly be used in a spack environment without any manual modification of PYTHONPATH or LD_LIBRARY_PATH.

extends('python', when='+python')

See the use in PCMS for example: https://github.com/jacobmerson/pcms-spack/blob/e9a7bd00201c871da0a4ffe14e17c3b5e6d2c86d/spack_repo/pcms/packages/pcms/package.py#L58

[Sichao25]

@bernhardkaindl Thanks for the notification. I've rebased the branch. However, I wasn't able to reproduce the libomega_h link error with spack install +exodus +mpi +shared alone. Could you let me know where can I find more details on which full spec triggers this?

[bernhardkaindl]

@Sichao25, thanks for checking. In a new docker container, I did a completely fresh install of spack develop, setup https://cache.spack.io as buildcache and this latest PR branch on ARM64 today (using the and it didn't reproduce there.