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 - MATNEST matrix

• idxm - index of the matrix within the nest matrix

• jdxm - index of the matrix within the nest matrix

Output Parameter

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

See Also

Matrices, Mat, MATNEST, MatNestGetSize(), MatNestGetSubMats(), MatCreateNest(), MatNestSetSubMat(), MatNestGetLocalISs(), MatNestGetISs()

Level

developer

Location

src/mat/impls/nest/matnest.c

Implementations

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

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Index of all Mat routines
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Index of all manual pages