On Mon, 2006-08-14 at 12:42 -0700, Roland Dreier wrote: > Steve> However, if I run 2 instances of the app that reads mcasts > Steve> and dumps them to stdout, I only get the mcast packets > Steve> delivered to one of the applications. Namely the first one > Steve> who joins the group seems to get the mcasts. I know for > Steve> UDP/IP multicast, all applications bound to the same port > Steve> and joined to the IP mcast addr will get a copy of incoming > Steve> mcast packets. Is this not true for IB mcast? It appears > Steve> not based on my tests... > > This should work -- multicast packets should be replicated to all > attached UD QPs. There is likely a bug in the librdma multicast support. >
So is this replicating done in the mthca hca? Since one app is getting the mcast packet, can I assume the opensm code is doing the right thing switch/port wise? Should the SM get join requests for both applications that join the group on the same host? Or only the first one? Steve. _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
