#include "petscao.h" PetscErrorCode AOCreateMappingIS(IS isapp, IS ispetsc, AO *aoout)
| comm | - MPI communicator that is to share AO | |
| isapp | - index set that defines an ordering | |
| ispetsc | - index set that defines another ordering, maybe NULL for identity IS |
| aoout | - the new application ordering |
| -ao_view : call AOView() at the conclusion of AOCreateMappingIS() |