petsc-3.13.6 2020-09-29
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DMCreateSuperDM

Returns an arrays of ISes and DM encapsulating a superproblem defined by the DMs passed in.

Synopsis

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMCreateSuperDM(DM dms[], PetscInt len, IS **is, DM *superdm)
Not collective

Input Parameter

dms - The DM objects
len - The number of DMs

Output Parameters

is - The global indices for the subproblem, or NULL
superdm - The DM for the superproblem

Note: You need to call DMPlexSetMigrationSF() on the original DM if you want the Global-To-Natural map to be automatically constructed

See Also

DMPlexSetMigrationSF(), DMDestroy(), DMView(), DMCreateInterpolation(), DMCreateColoring(), DMCreateMatrix(), DMCreateFieldIS()

Level

intermediate

Location

src/dm/interface/dm.c

Implementations

DMCreateSuperDM_Plex in src/dm/impls/plex/plex.c

Index of all DM routines
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Index of all manual pages