petsc-3.7.7 2017-09-25
MatNestGetISs
Returns the index sets partitioning the row and column spaces
Synopsis
#include "petscmat.h"
PetscErrorCode MatNestGetISs(Mat A,IS rows[],IS cols[])
Not collective
Input Parameters
A -nest matrix
Output Parameter
| rows | - array of row index sets
|
| cols | - array of column index sets
|
Notes
The user must have allocated arrays of the correct size. The reference count is not increased on the returned ISs.
See Also
MatNestGetSubMat(), MatNestGetSubMats(), MatNestGetSize(), MatNestGetLocalISs()
Level:advanced
Location:src/mat/impls/nest/matnest.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/snes/examples/tutorials/ex70.c.html