petsc-3.7.5 2017-01-01
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PetscSFGetGroups

 gets incoming and outgoing process groups

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFGetGroups(PetscSF sf,MPI_Group *incoming,MPI_Group *outgoing)
Collective

Input Argument

sf -star forest

Output Arguments

incoming - group of origin processes for incoming edges (leaves that reference my roots)
outgoing - group of destination processes for outgoing edges (roots that I reference)

See Also

PetscSFGetWindow(), PetscSFRestoreWindow()

Level:developer
Location:src/vec/is/sf/interface/sf.c
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages