:orphan: # 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 ## 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 ## Output Parameter - ***vecs -*** array of requested global vectors (must be allocated) ## Note Use `DMCompositeRestoreAccessArray()` to return the vectors when you no longer need them ## See Also `DMCOMPOSITE`, `DM`, `DMCompositeGetAccess()`, `DMCompositeGetEntries()`, `DMCompositeScatter()`, `DMCompositeGather()` ## Level advanced ## Location src/dm/impls/composite/pack.c ## Examples src/snes/tutorials/ex73f90t.F90
src/ts/utils/dmplexlandau/tutorials/ex1.c
src/ts/utils/dmplexlandau/tutorials/ex2.c
--- [Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/composite/pack.c) [Index of all DM routines](index.md) [Table of Contents for all manual pages](/manualpages/index.md) [Index of all manual pages](/manualpages/singleindex.md)