petsc-3.11.4 2019-09-28
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