DMCompositeGetAccess#
Allows one to access the individual packed vectors in their global representation.
Synopsis#
#include "petscdmcomposite.h"
PetscErrorCode DMCompositeGetAccess(DM dm, Vec gvec, ...)
Collective
Input Parameters#
dm - the
DMCOMPOSITE
objectgvec - the global vector
Output Parameter#
Vec … -* the packed parallel vectors, NULL for those that are not needed
Note#
Use DMCompositeRestoreAccess()
to return the vectors when you no longer need them
Fortran Note#
Fortran callers must use numbered versions of this routine, e.g., DMCompositeGetAccess4(dm,gvec,vec1,vec2,vec3,vec4)
or use the alternative interface DMCompositeGetAccessArray()
.
See Also#
DMCOMPOSITE
, DM
, DMCompositeGetEntries()
, DMCompositeScatter()
Level#
advanced
Location#
Examples#
src/snes/tutorials/ex21.c
src/snes/tutorials/ex22.c
src/snes/tutorials/ex28.c
src/ts/tutorials/ex14.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages