>Note however that the relevant IB limit is the max ***message size*** which happens to >be equal to the ***IB*** MTU for the current IPoIB (that runs on top of IB UD transport >service where IB messages are limited to a single packet).
>A connected mode IPoIB (that runs on top of IB RC/UC transport service) would allow IB >messages up to 2GB long. That will allow for much larger (effectively as large as you >may ever dream of) ***IP*** MTUs, regardless of the underlying IB MTU. >Diego The trade off is that a fully connected model requires each node to burn a QP for every node in the cluster and thus does not scale as well as the UD model. My guess is that if people need really high performance socket access, they will use SDP instead. woody _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
