petsc-3.6.2 2015-10-02
   
DMPlexCreateOverlap
Compute owner information for shared points. This basically gets two-sided for an SF. 
Synopsis
#include "petscdmplex.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