VecSetSizes#

Sets the local and global sizes, and checks to determine compatibility of the sizes

Synopsis#

#include "petscvec.h"   
PetscErrorCode VecSetSizes(Vec v, PetscInt n, PetscInt N)

Collective

Input Parameters#

v - the vector
n - the local size (or PETSC_DECIDE to have it set)
N - the global size (or PETSC_DETERMINE to have it set)

Notes#

N cannot be PETSC_DETERMINE if n is PETSC_DECIDE

If one processor calls this with N of PETSC_DETERMINE then all processors must, otherwise the program will hang.

See Also#

Vectors and Parallel Data, Vec, VecGetSize(), PetscSplitOwnership()

Level#

intermediate

Location#

src/vec/vec/interface/vector.c

Examples#

src/dm/tutorials/ex14.c
src/ksp/ksp/tutorials/bench_kspsolve.c
src/ksp/ksp/tutorials/ex1.c
src/ksp/ksp/tutorials/ex10.c
src/ksp/ksp/tutorials/ex11.c
src/ksp/ksp/tutorials/ex11f.F90
src/ksp/ksp/tutorials/ex12.c
src/ksp/ksp/tutorials/ex15.c
src/ksp/ksp/tutorials/ex16.c
src/ksp/ksp/tutorials/ex18.c
src/ksp/ksp/tutorials/ex1f.F90

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