MatISGetLocalMat#
Gets the local matrix stored inside a MATIS
matrix.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatISGetLocalMat(Mat mat, Mat *local)
Not Collective.
Input Parameter#
mat - the matrix
Output Parameter#
local - the local matrix
Notes#
This can be called if you have precomputed the nonzero structure of the
matrix and want to provide it to the inner matrix object to improve the performance
of the MatSetValues()
operation.
Call MatISRestoreLocalMat()
when finished with the local matrix.
See Also#
Level#
intermediate
Location#
Examples#
Implementations#
MatISGetLocalMat_IS() in src/mat/impls/is/matis.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages