MatNestSetSubMat#

Set a single submatrix in the MATNEST

Synopsis#

#include "petscmat.h"   
PetscErrorCode MatNestSetSubMat(Mat A, PetscInt idxm, PetscInt jdxm, Mat sub)

Logically Collective

Input Parameters#

  • A - MATNEST matrix

  • idxm - index of the matrix within the nest matrix

  • jdxm - index of the matrix within the nest matrix

  • sub - matrix at index idxm, jdxm within the nest matrix

Notes#

The new submatrix must have the same size and communicator as that block of the nest.

This increments the reference count of the submatrix.

See Also#

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

Level#

developer

Location#

src/mat/impls/nest/matnest.c

Implementations#

MatNestSetSubMat_Nest() in src/mat/impls/nest/matnest.c

Index of all Mat routines
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Index of all manual pages