> I guess I'm lost on why this would be really useful, especially from a > beowulfery perspective. It's not like any sane Beowulfer would pay a > premium for Macs just to have this interconnect when they could just get > some old IB hardware.
Thunderbolt has nothing to do with Macs, of course. at least Intel makes it sound as if they'll be pushing it into the commodity (PC) market, just as they did with PCI*/USB/etc. there's a lot to not like about IB. the fact that it's very nearly a one-company "ecosystem". the fact that even the cheapest SDR IB setup will set you back >$300/port (adapter, cable, switch), and "real" configs are more like $1k/port. or the just IB's gratuitous non-ethernet-ness. what makes it interesting to me is that it appears to be headed towards commoditization/ubiquity like ethernet is (and like IB will never be.) Intel talks about carying PCIE over thunderbolt - does that means that there may be a market for switched PCIE fabrics? would that provide a lower-overhead RDMA mechanism? some of the Intel verbiage mentions multiport controllers with builtin switching - does that mean that they're thinking about, say, a 6-port adapter that can implement a switchless fabric? it's quite difficult to understand at this point, expecially when the product appears to have originally been a lab project in silicon photonics. _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
