On Fri, 4 Nov 2005, Ranjit Pandit wrote:
> For Mpi running on a 10,000 node cluster with 2 or 4 way nodes, here > are the QP/ CM connection requirements: (assuming intra node > communication doesn't use IB) > > Procs per node uDapl/Sdp Rds > 2 19996 9999 > 4 39984 9999 > > Clearly, there is tradeoff in performance as we go from uDapl/Sdp to > Rds. The choice will have to depend on the requirements of performance > Vs Scalability. > Btw, for this large a cluster, there is a huge overhead in just > setting up the connections. Rds connections are setup only once. This isn't an apples to apples comparison. uDAPL is an API and RDS is a protocol. You could implement RDS using a DAPL API, OpenIB verbs, etc. james _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
