DMRestrict#
restricts user-defined problem data to a coarser DM by running hooks registered by DMCoarsenHookAdd()
Synopsis#
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMRestrict(DM fine, Mat restrct, Vec rscale, Mat inject, DM coarse)
Collective if any hooks are
Input Parameters#
fine - finer
DMfrom which the data is obtainedrestrct - restriction matrix, apply using
MatRestrict(), usually the transpose of the interpolationrscale - scaling vector for restriction
inject - injection matrix, also use
MatRestrict()coarse - coarser
DMto update
Developer Note#
Though this routine is called DMRestrict() the hooks are added with DMCoarsenHookAdd(), a consistent terminology would be better
See Also#
DM Basics, DM, DMCoarsenHookAdd(), MatRestrict(), DMInterpolate(), DMRefineHookAdd()
Level#
developer
Location#
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages