DMCompositeGetLocalAccessArray#

Allows one to access the individual packed vectors in their local representation.

Synopsis#

#include "petscdmcomposite.h"  
PetscErrorCode DMCompositeGetLocalAccessArray(DM dm, Vec pvec, PetscInt nwanted, const PetscInt *wanted, Vec *vecs)

Collective

Input Parameters#

  • dm - the DMCOMPOSITE

  • pvec - packed vector

  • nwanted - number of vectors wanted

  • wanted - sorted array of vectors wanted, or NULL to get all vectors

Output Parameter#

  • vecs - array of requested local vectors (must be allocated)

Note#

Use DMCompositeRestoreLocalAccessArray() to return the vectors when you no longer need them.

See Also#

DMCOMPOSITE, DM, DMCompositeRestoreLocalAccessArray(), DMCompositeGetAccess(), DMCompositeGetEntries(), DMCompositeScatter(), DMCompositeGather()

Level#

advanced

Location#

src/dm/impls/composite/pack.c

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