petsc-3.9.4 2018-09-11

PetscSFSetUpRanks

Set up data structures associated with ranks; this is for internal use by PetscSF implementations.

#include "petscsf.h" 
PetscErrorCode PetscSFSetUpRanks(PetscSF sf,MPI_Group dgroup)

Collective

	sf	- PetscSF to set up; PetscSFSetGraph() must have been called
	dgroup	- MPI_Group of ranks to be distinguished (e.g., for self or shared memory exchange)

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