#include "petscmat.h" PetscErrorCode MatIncreaseOverlapSplit(Mat mat,PetscInt n,IS is[],PetscInt ov)Collective on Mat
| mat | - the matrix | |
| n | - the number of index sets | |
| is | - the array of index sets (these index sets will changed during the call) | |
| ov | - the additional overlap requested |
| -mat_increase_overlap_scalable | - use a scalable algorithm to compute the overlap (supported by MPIAIJ matrix) |