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, length nwanted

Output Parameter

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

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

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Index of all DM routines
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Index of all manual pages