Oh, and at least the higher core-count SKUs like the 32-core 7251 are actually 4 8-core dies linked together with a new "Infinity Fabric" interconnect, not a single 32-core die. I completely missed that. And it's fine, it probably makes sense from a yield perspective, but behold the intra-socket inter-die NUMA effects. And sure enough, we'll need yet another layer in the node-board-socket-core-thread conceptual cake.
By the way, isn't actually what Intel was criticized for, when they released their first quad-core Clovertown CPUs, back in 2007? I remember some PR from AMD about those fake quad-core CPUs, which really were just two dual-core glued together. Funny how tides turn... :) Cheers. -- Kilian _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
