MatNestSetSubMats#

Sets the nested submatrices in a MATNEST

Synopsis#

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

Collective

Input Parameters#

  • A - MATNEST 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

Note#

This always resets any submatrix information previously set

See Also#

Matrices, Mat, MATNEST, MatCreateNest(), 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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