On Tue, Feb 08, 2011 at 07:06:14PM -0500, Gus Correa wrote: > how much cabling does it take to wire a 2D or 3D doughnut/torus > on the back of racks of servers with these Numascale cards,
A cubic carbon (diamond) lattice would use 4 links for a 3d lattice, but for cubic primitive you'd go 4 links for 2d and 6 links for 3d. Cables can be short within a rack if your grid is wrapped around. Of course if you start to interconnect nodes in adjacent racks with short cables for 3d, the result would drive a spider green with envy. So below the floor they would go, and pretty thick cable bundles they're going to be, even if they're plain CAT 5e. > and no switch. > (Or do they use switches?) > How much cabling? > Does it scale well? > Or will it look like our router on the 3rd floor? > Anyway, it's not as fun as Homer. -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE _______________________________________________ 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
