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

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