MatNestGetSubMats#

Returns the entire two dimensional array of matrices defining a MATNEST matrix.

Synopsis#

#include "petscmat.h"   
PetscErrorCode MatNestGetSubMats(Mat A, PetscInt *M, PetscInt *N, Mat ***mat)

Not Collective

Input Parameter#

  • A - nest matrix

Output Parameters#

  • M - number of rows in the nest matrix

  • N - number of cols in the nest matrix

  • mat - 2d array of matrices

Note#

The user should not free the array mat.

Fortran Note#

This routine has a calling sequence

call MatNestGetSubMats(A, M, N, mat, ierr)

where the space allocated for the optional argument mat is assumed large enough (if provided).

See Also#

Matrices, Mat, MATNEST, MatNestGetSize(), MatNestGetSubMat(), MatNestGetLocalISs(), MATNEST, MatCreateNest(), MatNestSetSubMats(), MatNestGetISs(), MatNestSetSubMat()

Level#

developer

Location#

src/mat/impls/nest/matnest.c

Implementations#

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


Edit on GitLab

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages