DMDACreateAggregates

Gets the aggregates that map between grids associated with two DMDA

Synopsis

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

Collective

Input Parameters

• dac - the coarse grid DMDA

• daf - the fine grid DMDA

Output Parameter

• 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

DMDA - Creating vectors for structured grids, DMRefine(), DMCreateInjection(), DMCreateInterpolation()

Level

intermediate

Location

src/dm/impls/da/dainterp.c

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Index of all DMDA routines
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Index of all manual pages