Author: Robert Hyatt
Date: 14:28:17 05/11/00
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On May 11, 2000 at 15:14:30, Rajen Gupta wrote: >Hi all: i read on the chessbase site that junior will be playing in the >supergrandmaster tournament on an 8 proceesor system-i thought that the maximum >number of CPUs for a xeon based system is 4 and for a coppermine based system >was 2.Will junior be playing on an alpha based system or has intel now built >motherboards that can take more than 4 xeons?? > >rajen gupta Xeons can go up to 8-way, so far. But it is really two 4-way systems with a special hack sitting between the two 4-way cache systems. All the processors share memory, and the usual bus-snooping cache works, but with some extra hardware that a 2-4 way system doesn't need. Dell sells 8-way machines. Drawback is that memory is still 4-way interleaved, so 8 processors _really_ starve for data...
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