petsc-master 2014-09-30
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DMCreateAggregates

Gets the aggregates that map between grids associated with two DMs.

Synopsis

#include "petscdm.h"     
PetscErrorCode  DMCreateAggregates(DM dmc, DM dmf, Mat *rest)
Collective on DM

Input Parameters

dmc - the coarse grid DM
dmf - the fine grid DM

Output Parameters

rest -the restriction matrix (transpose of the projection matrix)

Keywords

interpolation, restriction, multigrid

See Also

DMRefine(), DMCreateInjection(), DMCreateInterpolation()

Level:intermediate
Location:
src/dm/interface/dm.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages