On Tue, May 23, 2006 at 04:15:40AM -0700, Jim Lux wrote: > 3) Then, there's the switch. If it's a *switch* that sets up circuits, > then it can be fairly inexpensive. If it's something that has to do packet > buffering, it gets a lot more expensive.
Switches (crossbars) don't scale for very many ports. Especially if you have to do cut-through switching at those high speeds. It would be good if each NIC would came with an integrated switch, with enough ports to wire at least a 3d torus (where you route/switch messages via Bresenham). In regards to keeping the wires short, does this IBM trick of keeping all wires equal-length work well on 3d lattices, and above? This would seem to be a must for those coming (hopefully) Hypertransport motherboards with connectors. -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
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