How to clear (locally - on each MPI proc) all options related to a given prefixed solver ?
Say I have 2 solvers. I prefixed them "s1_" and "s2_" with KSPSetOptionsPrefix to give them different options. At the very beginning, I need to pass options for s1 and s2 as I don't know how things will turn out. Say, things turn out in such a way that s2 solve is not done (not necessary) : at that time, how to clear these options (that will not be used) related to s2 ? In the doc, I see PetscOptionsLeft and PetscOptionsClearValue. I would need something like PetscOptionsClearLeftValues locally on each proc (some proc may need s2 so they must not clear options). Is this possible ? Franck
