petsc-3.4.5 2014-06-29

MatSetBlockSize

Sets the matrix block size.

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatSetBlockSize(Mat mat,PetscInt bs)

Logically Collective on Mat

Input Parameters

	mat	- the matrix
	bs	- block size

Notes

This must be called before MatSetUp() or MatXXXSetPreallocation() (or will default to 1) and the block size cannot be changed later

See Also

MatCreateSeqBAIJ(), MatCreateBAIJ(), MatGetBlockSize()

Level:intermediate
Location:src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ksp/ksp/examples/tutorials/ex55.c.html
src/ksp/ksp/examples/tutorials/ex56.c.html