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Subject: Re: 8-processor system for junior6? (Like D.B?)

Author: Robert Hyatt

Date: 06:05:39 05/12/00

Go up one level in this thread


On May 12, 2000 at 00:28:50, stuart taylor wrote:

>On May 11, 2000 at 15:39:50, Dann Corbit wrote:
>
>>On May 11, 2000 at 15:33:09, Jason Williamson wrote:
>>
>>>On May 11, 2000 at 15:29:18, Dann Corbit wrote:
>>>
>>>>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?
>>>>
>>>>ProLiant 8500:
>>>>http://www.nt-advantage.com/adv-1999-09/adv-09-8way-pov.html
>>>>
>>>>If it were ported to Alpha, he could have a lot more CPU's than that.
>>>>Ludicrously more:
>>>>http://www.digital.com/hpc/news/news_hptc_review2000.html
>>>More?  On 8 processors that program will be scary....  Of course on 100
>>>processors it would be even more scary.  :))
>>
>>The high performace computing review mentions 512 CPU Alpha systems, and of
>>course, these systems cluster so you can basically create as many CPUs as you
>>want.  Even thousands.  The specifically mention a 4TF system.  4000GF or
>>4000000MF.  Not bad.
>
>The Junior (upgrade test version-I presume) which they will be playing, how
>might it compare to deeper blue? If not on 8 proccessors, how many proccessoes
>would do it?


Since xeons are limited to 550mhz max, if you want a 4-way box, and since DB is
roughly 2,000 times faster, you would need a machine with about 2K cpus.  But
since that would not be SMP, and since current programs like DJ are not built
around something like PVM for message-passing, it would probably take on the
order of 4K=8K cpus to catch up, assuming the necessary programming changes were
made (which is way non-trivial to do).



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