[petsc-users] set MUMPS OOC_TMPDIR

[Sam Guo]

Dear PETSc dev team,
   I would like to set MUMPS OOC_TMPDIR programmatically on fly (instead of
statically using PetscOptionsString
<https://petsc.org/main/docs/manualpages/Sys/PetscOptionsString.html#PetscOptionsString>
("-mat_mumps_ooc_tmpdir", "out of core directory", "None",
mumps->id.ooc_tmpdir, mumps->id.ooc_tmpdir, sizeof(mumps->id.ooc_tmpdir),
NULL);). It seems there is such an API, am I correct?

Thanks,
Sam