#include "petscda.h" PetscErrorCode PETSCDM_DLLEXPORT DMCompositeGetGlobalISs(DMComposite packer,IS *is[])Collective on DMComposite
The number of IS on each process will/may be different when redundant arrays are used
These could be used to extract a subset of vector entries for a "multi-physics" preconditioner
Use DMCompositeGetLocalISs() for index sets that include ghost points
Level:advanced
Location:src/dm/da/utils/pack.c
Index of all DA routines
Table of Contents for all manual pages
Index of all manual pages