Dear PETSc team: For one of my applications, I need to know which owned DAG points in a (DMPlex) are other ranks' ghosts. Say, rank-0 has some point "x" (which it owns) and it shows up in, say, rank-1 as a ghost numbered "y". Then, if I inspect the "Point" PestcSF, in rank-1 there should be a leaf for "y" that records rank-0 and the value of "x", right? However, back in rank-0, the same PetscSF has no record that "x" is "y" in rank-1 (and potentially "z","a","b",... in additional ranks).
Is this what, in PetscSF terminology, is referred to as "One-Sided"? If so, I think what I am really asking is how can I obtain a "Two-Sided" version of the PointSF? Sincerely: J.A. Ferrand Embry-Riddle Aeronautical University - Daytona Beach - FL Ph.D. Candidate, Aerospace Engineering M.Sc. Aerospace Engineering B.Sc. Aerospace Engineering B.Sc. Computational Mathematics Phone: (386)-843-1829 Email(s): ferra...@my.erau.edu jesus.ferr...@gmail.com