[quote]Originally posted by Amorph:
<strong>[quote]Question: Is there a way to run a dual system through two separate busses. Where each CPU has it's own bus and they are connect at the system controller? If apple ever mad quads for there Xserves would this not help performance? Just wondering.<hr></blockquote></strong>
[quote]<strong>Yes. This is how a NUMA architecture is built. It's been popular in e.g. SGI workstations, but until this year - really - it's been prohibitively expensive to design. HyperTransport, RapidIO, and IBM's Giga bus (the one on the 970) change that.
The 970 can only be set up this way, although if I recall there's another bus that can go directly between processors, setting up a fabric of sorts (rather than everything going through a central controller). This would correspond to something like the Reserved SMP support in the 7400, allowing CPUs to keep their respective memory banks coherent without having to go through the controller.</strong><hr></blockquote>
Would it then be okay to expect a quad 970 on a theoretically 3.6 Ghz bus?
[quote]Originally posted by Clive:
<strong>Can we just ban these stupid "970 when?" threads, because we seem to having one about every two weeks at the moment - and we don't get any more information for all the fuss it causes.</strong><hr></blockquote>
Some of us dont live their lives on AI, and therefore dont know all the gossip.
And if you dont like the smell in the bakery, then stay away!
[ 02-07-2003: Message edited by: T'hain Esh Kelch ]</p>