MatNestGetSubMat#
Returns a single, sub-matrix from a MATNEST
Synopsis#
#include "petscmat.h"
PetscErrorCode MatNestGetSubMat(Mat A, PetscInt idxm, PetscInt jdxm, Mat *sub)
Not Collective
Input Parameters#
A -
MATNESTmatrixidxm - index of the matrix within the nest matrix
jdxm - index of the matrix within the nest matrix
Output Parameter#
sub - matrix at index
idxm,jdxmwithin the nest matrix
See Also#
Matrices, Mat, MATNEST, MatNestGetSize(), MatNestGetSubMats(), MatCreateNest(), MATNEST, MatNestSetSubMat(),
MatNestGetLocalISs(), MatNestGetISs()
Level#
developer
Location#
Implementations#
MatNestGetSubMat_Nest in src/mat/impls/nest/matnest.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages