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#

  • vv - the vector

Notes#

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

See Also#

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

Level#

intermediate

Location#

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

Examples#

src/vec/vec/tutorials/ex11.c.html
src/vec/vec/tutorials/ex11f90.F90.html
src/vec/vec/tutorials/ex11f.F90.html
src/vec/vec/tutorials/ex13.c.html
src/vec/vec/tutorials/ex1.c.html
src/vec/vec/tutorials/ex1f90.F90.html
src/vec/vec/tutorials/ex1f.F90.html
src/vec/vec/tutorials/ex20f90.F90.html
src/vec/vec/tutorials/ex2f.F90.html
src/vec/vec/tutorials/ex42a.c.html
src/dm/field/tutorials/ex1.c.html


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