petsc-3.8.4 2018-03-24
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DMCompositeGetAccessArray

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

Synopsis

#include "petscdmcomposite.h"  
PetscErrorCode  DMCompositeGetAccessArray(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 global vectors (must be allocated)

Notes: Use DMCompositeRestoreAccessArray() to return the vectors when you no longer need them

See Also

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

Examples

src/snes/examples/tutorials/ex73f90t.F90.html