VecCreateMPI#

Creates a parallel vector.

Synopsis#

#include "petscvec.h"   
PetscErrorCode VecCreateMPI(MPI_Comm comm, PetscInt n, PetscInt N, Vec *v)

Collective

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#

  • v - the vector

Notes#

It is recommended to use VecCreateFromOptions() instead of this routine

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

See Also#

Vectors and Parallel Data, Vec, VecType, VecCreateSeq(), VecCreate(), VecDuplicate(), VecDuplicateVecs(), VecCreateGhost(), VecCreateMPIWithArray(), VecCreateGhostWithArray(), VecMPISetGhost()

Level#

intermediate

Location#

src/vec/vec/impls/mpi/vmpicr.c

Examples#

src/tao/bound/tutorials/plate2.c

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