On Sep 11, 2013, at 7:54 AM, Jed Brown <jedbr...@mcs.anl.gov> wrote:
> Barry Smith <bsm...@mcs.anl.gov> writes: >> Sometimes it is more convenient to use "global indices" than >> rank/local offset. Thus we need a "scalable" utility to convert back >> and forth between them. Possibly having interfaces to supply the >> information in either format. > > http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/IS/PetscSFSetGraphLayout.html Fine, but their really shouldn't be two SFSetGraph() functions. Rather there should be two ways of constructing the "abstract indices" that are passed to one SFSetGraph() function.
