DAGetAggregates

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

Synopsis

#include "petscda.h"   
PetscErrorCode PETSCDM_DLLEXPORT DAGetAggregates(DA dac,DA daf,Mat *rest)
Collective on DA

Input Parameters

dac - the coarse grid DA
daf - the fine grid DA

Output Parameters

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

Keywords

interpolation, restriction, multigrid

See Also

DARefine(), DAGetInjection(), DAGetInterpolation()

Level:intermediate
Location:
src/dm/da/src/dainterp.c
Index of all DA routines
Table of Contents for all manual pages
Index of all manual pages