On Tue, 2008-08-12 at 11:40 -0700, Roland Dreier wrote: > > This patch fixes the problem by returning an error when attempting > > to set the QP path MTU greater than the port MTU. > > I don't believe this is correct according to the IB spec -- modify QP is > supposed to return an error only when the requested MTU is bigger than > the MTUcap of the port. Even if we do have this patch, it seems there > could still be trouble if an intermediate hop has a smaller MTU. > > Why is Open MPI trying to set a path MTU bigger than what the fabric > actually supports?
Because at one point it didn't check the portinfo, it only relied on the config file. I did send email about this some time ago so it may be fixed in newer versions. _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
