petsc-3.7.1 2016-05-15
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MatSubMatrixUpdate

Updates a submatrix

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatSubMatrixUpdate(Mat N,Mat A,IS isrow,IS iscol)
Collective on Mat Many br

Input Parameters

N - submatrix to update Many br
A - full matrix in the submatrix Many br
isrow - rows in the update (same as the first time the submatrix was created) Many br
iscol - columns in the update (same as the first time the submatrix was created) Many br

Many br

Notes

Most will use MatGetSubMatrix which provides a more efficient representation if it is available. Many br

See Also

MatGetSubMatrix(), MatCreateSubMatrix()

Level:developer
Location:
src/mat/impls/submat/submat.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages