> Doesn't matter.  Could even be dedicated
> point-to-point links between all chips.  My
> assumption is that a processor on a chip can access
> the memory controller without sending messages to
> other chips via the xbar/hypertransport links.  Of
> course this can't be done naively...

Right. The reason I ask, is that in a 4 node ring you have a 3 level
latency topology (local/either neighbor/far node) vs
2 level where there is only local and remote.

-Eric
 
 
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