MatGetLocalSize#
For most matrix formats, excluding MATELEMENTAL and MATSCALAPACK, Returns the number of local rows and local columns of a matrix. For all matrices this 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 Parameter#
- mat - the matrix 
Output Parameters#
- m - the number of local rows, use - NULLto not obtain this value
- n - the number of local columns, use - NULLto not obtain this value
See Also#
Matrices, Mat, MatSetSizes(), MatGetSize()
Level#
beginner
Location#
Examples#
src/ksp/ksp/tutorials/ex87.c
src/mat/tutorials/ex20f.F90
src/ksp/ksp/tutorials/ex77.c
src/snes/tutorials/ex12.c
src/ksp/ksp/tutorials/ex10.c
src/ksp/ksp/tutorials/ex27.c
src/ksp/ksp/tutorials/ex72.c
src/ksp/ksp/tutorials/ex77f.F90
src/ksp/pc/tutorials/ex4.c
src/ksp/ksp/tutorials/ex71.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages