petsc-master 2019-09-16
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DMDACreateAggregates

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

Synopsis

#include "petscdmda.h"   
PetscErrorCode DMDACreateAggregates(DM dac,DM daf,Mat *rest)
Collective on dmc

Input Parameters

dmc - the coarse grid DMDA
dmf - the fine grid DMDA

Output Parameters

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

Note: This routine is not used by PETSc. It is not clear what its use case is and it may be removed in a future release. Users should contact petsc-maint@mcs.anl.gov if they plan to use it.

See Also

DMRefine(), DMCreateInjection(), DMCreateInterpolation()

Level

intermediate

Location

src/dm/impls/da/dainterp.c
Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages