Thanks, but that won't help. In the real application the messages are at least 25,000 bytes long, mostly much larger.
Thanks, Mark On Fri, Jun 19, 2009 at 1:17 PM, Eugene Loh <eugene....@sun.com> wrote: > Mark Bolstad wrote: > > I have a small test code that I've managed to duplicate the results from a >> larger code. In essence, using the sm btl with ISend, I wind up with the >> communication being completely serialized, i.e., all the calls from process >> 1 complete, then all from 2, ... >> > > I need to do some other stuff, but might spend time on this later. For > now, I'll just observe that your sends are rendezvous sends. E.g., if you > decrease BUFLEN from 25000 to 2500 (namely, from over 4K to under 4K), the > behavior should change (to what you'd expect). That may or may not help > you, but I think it's an important observation in reasoning about this > behavior. > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
