petsc-master 2020-09-23
Report Typos and Errors

MatGetLocalSize

Returns the number of local rows and local columns of a matrix, that is the local size of the left and right vectors as returned by MatCreateVecs().

Synopsis

#include "petscmat.h" 
PetscErrorCode MatGetLocalSize(Mat mat,PetscInt *m,PetscInt *n)
Not Collective

Input Parameters

mat - the matrix

Output Parameters

m - the number of local rows
n - the number of local columns

Note: both output parameters can be NULL on input.

See Also

MatGetSize()

Level

beginner

Location

src/mat/interface/matrix.c

Examples

src/ksp/ksp/tutorials/ex10.c.html
src/ksp/ksp/tutorials/ex27.c.html
src/ksp/ksp/tutorials/ex72.c.html
src/ksp/ksp/tutorials/ex77.c.html
src/ksp/ksp/tutorials/ex77f.F90.html
src/snes/tutorials/ex12.c.html

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages