petsc-3.10.2 2018-10-09
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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 on DMComposite.

Input Parameters

dm - the packer object
pvec - packed vector
nwanted - number of vectors wanted
wanted - sorted array of vectors wanted, or NULL to get all vectors

Output Parameters

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

Notes

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

See Also

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