petsc-3.5.1 2014-08-06
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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