petsc-3.14.6 2021-03-30

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VecSetSizes

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

Synopsis

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

Collective on Vec

Input Parameters

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

Notes

n and N cannot be both PETSC_DECIDE If one processor calls this with N of PETSC_DECIDE then all processors must, otherwise the program will hang.

See Also

VecGetSize(), PetscSplitOwnership()

Level

intermediate

Location

src/vec/vec/interface/vector.c

Examples

src/vec/vec/utils/tagger/tutorials/ex1.c.html
src/vec/vec/tutorials/ex1.c.html
src/vec/vec/tutorials/ex2.c.html
src/vec/vec/tutorials/ex3.c.html
src/vec/vec/tutorials/ex5.c.html
src/vec/vec/tutorials/ex6.c.html
src/vec/vec/tutorials/ex7.c.html
src/vec/vec/tutorials/ex8.c.html
src/vec/vec/tutorials/ex9.c.html
src/vec/vec/tutorials/ex10.c.html
src/vec/vec/tutorials/ex11.c.html

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