#include "petscao.h" PetscErrorCode AOCreateMapping(MPI_Comm comm,PetscInt napp,const PetscInt myapp[],const PetscInt mypetsc[],AO *aoout)
| comm | - MPI communicator that is to share AO | |
| napp | - size of integer arrays | |
| myapp | - integer array that defines an ordering | |
| mypetsc | - integer array that defines another ordering (may be NULL to indicate the identity ordering) |
Notes: the arrays myapp and mypetsc need NOT contain the all the integers 0 to napp-1, that is there CAN be "holes" in the indices. Use AOCreateBasic() or AOCreateBasicIS() if they do not have holes for better performance.