VecCreateMPI

Creates a parallel vector.

Synopsis

#include "petscvec.h"   
int VecCreateMPI(MPI_Comm comm,int n,int N,Vec *v)
Collective on MPI_Comm

Input Parameters

comm - the MPI communicator to use
n - local vector length (or PETSC_DECIDE to have calculated if N is given)
N - global vector length (or PETSC_DETERMINE to have calculated if n is given)

Output Parameter

vv -the vector

Notes

Use VecDuplicate() or VecDuplicateVecs() to form additional vectors of the same type as an existing vector.

Keywords

vector, create, MPI

See Also

VecCreateSeq(), VecCreate(), VecDuplicate(), VecDuplicateVecs(), VecCreateGhost(),
VecCreateMPIWithArray(), VecCreateGhostWithArray()

Level:intermediate
Location:
src/vec/impls/mpi/vmpicr.c
Index of all Vec routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/vec/examples/tutorials/ex1.c
src/vec/examples/tutorials/ex1e.c
src/vec/examples/tutorials/ex2.c
src/vec/examples/tutorials/ex8.c
src/vec/examples/tutorials/ex10.c
src/vec/examples/tutorials/ex11.c
src/vec/examples/tutorials/ex13.c
src/vec/examples/tutorials/ex1f.F
src/vec/examples/tutorials/ex2f.F
src/vec/examples/tutorials/ex1f90.F
src/vec/examples/tutorials/ex11f.F