[Beowulf] Pony: not yours.
atchley at tds.net
Thu May 16 08:22:46 PDT 2013
On Thu, May 16, 2013 at 10:28 AM, Mark Hahn <hahn at mcmaster.ca> wrote:
> > Interesting, but depressing, presentation.
> I found it unilluminating, actually. don't we all know about power issues?
Know? Yes. To this extent? Maybe not.
> > At HotInterconnects in 2011, Intel gave a presentation about the
> > in power per flop over time. The corresponding communication power
> > consumption per bit was flat (no improvement). Projecting the trends
> well, it has to be said that most computation is mundane and doesn't
> multiple processors, let alone big clusters. so the fact that the computer
> industry focuses on this domain is appropriate.
> > forward and with a 20 Mw power budget, an exascale machine's network
> > consume all the power leaving nothing for computation.
> well, that sounds absurd - were they assuming a full-bisection fat tree of
> older (hotter, lower fanout) generation interconnect?
Even dragonfly topologies (high-radix routers with low hop count) and a
bandwidth taper of 1/2 given current power consumption levels will exceed
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Beowulf