petsc-3.7.7 2017-09-25
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Compute owner information for shared points. This basically gets two-sided for an SF.


#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

See Also

DMPlexDistributeOwnership(), DMPlexDistribute()

Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages

ovLabel - DMLabel containing remote overlap contributions as point/rank pairings