petsc-3.12.5 2020-03-29
MatNestGetLocalISs
Returns the index sets partitioning the row and column spaces
Synopsis
#include "petscmat.h"
PetscErrorCode MatNestGetLocalISs(Mat A,IS rows[],IS cols[])
Not collective
Input Parameters
A -nest matrix
Output Parameter
| rows | - array of row index sets (or NULL to ignore)
|
| cols | - array of column index sets (or NULL to ignore)
|
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(), MatNestGetISs()
Level
advanced
Location
src/mat/impls/nest/matnest.c
Implementations
MatNestGetLocalISs_Nest in src/mat/impls/nest/matnest.c
Index of all Mat routines
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Index of all manual pages