DMCreateLocalVector#

Creates a local vector from a DM object.

Synopsis#

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMCreateLocalVector(DM dm, Vec *vec)

Not Collective

Input Parameter#

  • dm - the DM object

Output Parameter#

  • vec - the local vector

Note#

A local vector usually has ghost locations that contain values that are owned by different MPI ranks. A global vector has no ghost locations.

See Also#

DM Basics, DM, Vec, DMCreateGlobalVector(), DMGetLocalVector(), DMDestroy(), DMView(), DMCreateInterpolation(), DMCreateColoring(), DMCreateMatrix() DMGlobalToLocalBegin(), DMGlobalToLocalEnd()

Level#

beginner

Location#

src/dm/interface/dm.c

Examples#

src/dm/tutorials/ex1.c
src/dm/impls/plex/tutorials/ex14.c
src/dm/tutorials/ex9.c
src/dm/tutorials/ex6.c
src/dm/tutorials/ex7.c
src/tao/unconstrained/tutorials/eptorsion2.c
src/tao/bound/tutorials/plate2.c
src/dm/field/tutorials/ex1.c
src/dm/tutorials/ex2.c
src/dm/tutorials/ex5.c

Implementations#

DMCreateLocalVector_Composite() in src/dm/impls/composite/pack.c
DMCreateLocalVector_DA() in src/dm/impls/da/dalocal.c
DMCreateLocalVector_pforest() in src/dm/impls/forest/p4est/pforest.h
DMCreateLocalVector_Moab() in src/dm/impls/moab/dmmbvec.cxx
DMCreateLocalVector_Network() in src/dm/impls/network/networkcreate.c
DMCreateLocalVector_Patch() in src/dm/impls/patch/patch.c
DMCreateLocalVector_Plex() in src/dm/impls/plex/plexcreate.c
DMCreateLocalVector_Redundant() in src/dm/impls/redundant/dmredundant.c
DMCreateLocalVector_Shell() in src/dm/impls/shell/dmshell.c
DMCreateLocalVector_Stag() in src/dm/impls/stag/stag.c
DMCreateLocalVector_Swarm() in src/dm/impls/swarm/swarm.c


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