DMGetAuxiliaryVec#

Get the auxiliary vector for region specified by the given label and value, and equation part

Synopsis#

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMGetAuxiliaryVec(DM dm, DMLabel label, PetscInt value, PetscInt part, Vec *aux)

Not Collective

Input Parameters#

  • dm - The DM

  • label - The DMLabel

  • value - The label value indicating the region

  • part - The equation part, or 0 if unused

Output Parameter#

  • aux - The Vec holding auxiliary field data

Note#

If no auxiliary vector is found for this (label, value), (NULL, 0, 0) is checked as well.

See Also#

DM Basics, DM, DMSetAuxiliaryVec(), DMGetNumAuxiliaryVec(), DMGetAuxiliaryLabels()

Level#

advanced

Location#

src/dm/interface/dm.c

Examples#

src/snes/tutorials/ex12.c
src/snes/tutorials/ex7.c

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