On Dec 5, 2013, at 6:10 AM, Anatoly G <anatolyrishon at gmail.com> wrote: > I think I need MPICH2, but not MPICH. > Does MPICH 3.0.4 includes all features of MPICH2? Yes, and more. MPICH 3.0.4 or MPICH 3.1rc2 is the way to go. — Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji