@carlosal1015: According to the PKGBUILD, scotch-metis does not provide METIS because it's not 100% compatible. So it will probably not work.
I don't know what libesmumps.so from scotch does. Scotch is a dependency for MUMPS, so the current situation looks reasonable to me.
Pinned Comments
MartinDiehl commented on 2022-10-06 10:26 (UTC)
@jrohwer
When building PETSc (more specifically, petsc4py), one test (ex100 from ksp) will fail if a previous (major) version is installed. I could not figure out why this happens. The solution would be to build in a clean root (which is a little bit complicated due to dependency on other AUR packages) or simply uninstall the old version before.
Any help to solve this issue is welcomed.