petsc-3.9.4 2018-09-11
DMPlexCreateOverlap
Compute owner information for shared points. This basically gets two-sided for an SF.
Synopsis
#include "petscdmplex.h"
#include "petscdmlabel.h"
PetscErrorCode DMPlexCreateOverlap(DM dm, PetscInt levels, PetscSection rootSection, IS rootrank, PetscSection leafSection, IS leafrank, DMLabel *ovLabel)
Collective on DM
Input Parameters
| dm | - The DM
|
| levels | - Number of overlap levels
|
| rootSection | - The number of leaves for a given root point
|
| rootrank | - The rank of each edge into the root point
|
| leafSection | - The number of processes sharing a given leaf point
|
| leafrank | - The rank of each process sharing a leaf point
|
Output Parameters