#include "petscao.h" PetscErrorCode AOCreateBasicIS(IS isapp,IS ispetsc,AO *aoout)Collective on IS
| isapp | - index set that defines an ordering | |
| ispetsc | - index set that defines another ordering (may be NULL to use the natural ordering) |
Notes: the index sets isapp and ispetsc must contain the all the integers 0 to napp-1 (where napp is the length of the index sets) with no duplicates; that is there cannot be any "holes"