DMGlobalToLocalBegin#
Begins updating local vectors from global vector
Synopsis#
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMGlobalToLocalBegin(DM dm, Vec g, InsertMode mode, Vec l)
Neighbor-wise Collective
Input Parameters#
dm - the
DMobjectg - the global vector
mode -
INSERT_VALUESorADD_VALUESl - the local vector
Notes#
The operation is completed with DMGlobalToLocalEnd()
One can perform local computations between the DMGlobalToLocalBegin() and DMGlobalToLocalEnd() to overlap communication and computation
DMGlobalToLocal() is a short form of DMGlobalToLocalBegin() and DMGlobalToLocalEnd()
DMGlobalToLocalHookAdd() may be used to provide additional operations that are performed during the update process.
See Also#
DM Basics, DM, DMCoarsen(), DMDestroy(), DMView(), DMCreateGlobalVector(), DMCreateInterpolation(), DMGlobalToLocal(), DMGlobalToLocalEnd(), DMLocalToGlobalBegin(), DMLocalToGlobal(), DMLocalToGlobalEnd()
Level#
intermediate
Location#
Examples#
src/dm/tutorials/ex9.c
src/ksp/ksp/tutorials/ex70.c
src/ksp/ksp/tutorials/ex42.c
src/dm/tutorials/ex5.c
src/ksp/ksp/tutorials/ex49.c
src/ksp/ksp/tutorials/ex43.c
src/dm/tutorials/ex1.c
src/dm/tutorials/ex6.c
src/dm/tutorials/ex3.c
src/dm/tutorials/ex7.c
Implementations#
DMGlobalToLocalBegin_Composite() in src/dm/impls/composite/pack.c
DMGlobalToLocalBegin_DA() in src/dm/impls/da/dagtol.c
DMGlobalToLocalBegin_Moab() in src/dm/impls/moab/dmmbvec.cxx
DMGlobalToLocalBegin_Network() in src/dm/impls/network/network.c
DMGlobalToLocalBegin_Redundant() in src/dm/impls/redundant/dmredundant.c
DMGlobalToLocalBegin_Sliced() in src/dm/impls/sliced/sliced.c
DMGlobalToLocalBegin_Stag() in src/dm/impls/stag/stag.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages