PETSc version 3.16.6
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MatNestSetSubMats

Sets the nested submatrices

Synopsis

#include "petscmat.h"   
PetscErrorCode MatNestSetSubMats(Mat A,PetscInt nr,const IS is_row[],PetscInt nc,const IS is_col[],const Mat a[])
Collective on Mat

Input Parameters

A - nested matrix
nr - number of nested row blocks
is_row - index sets for each nested row block, or NULL to make contiguous
nc - number of nested column blocks
is_col - index sets for each nested column block, or NULL to make contiguous
a - row-aligned array of nr*nc submatrices, empty submatrices can be passed using NULL

Notes: this always resets any submatrix information previously set

See Also

MatCreateNest(), MATNEST, MatNestSetSubMat(), MatNestGetSubMat(), MatNestGetSubMats()

Level

advanced

Location

src/mat/impls/nest/matnest.c

Implementations

MatNestSetSubMats_Nest in src/mat/impls/nest/matnest.c

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