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Subject: Re: Beowulf Crafty

Author: Pete Galati

Date: 18:35:13 05/17/00

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On May 17, 2000 at 20:19:56, Eugene Nalimov wrote:

>On May 17, 2000 at 20:15:01, Robert Hyatt wrote:
>
>>On May 17, 2000 at 18:20:38, Pete Galati wrote:
>>
>>>On May 17, 2000 at 18:03:46, Robert Hyatt wrote:
>>>
>>>>On May 17, 2000 at 15:33:13, Peter Hegger wrote:
>>>>
>>>>>Hello
>>>>>Bob, I was wondering how many nps you will expect to hit when you get crafty up
>>>>>and running on the Beowulf cluster.
>>>>>Have you an approximate time frame when you think you may have the beast going?
>>>>>Or, is that something that is unpredictable at this point?
>>>>>Thanks,
>>>>>Peter
>>>>
>>>>
>>>>It is unpredictable.  There are lots of things to do... but obviously it
>>>>ought to hit 10M nodes per second.  Whether that is 10x faster than my
>>>>normal search on a single quad is very doubtful.  But I don't think that
>>>>hoping for 50% efficiency is out of line... which means an effective speed
>>>>of 5M.  And this is based on the current cluster.  Another 8 quad xeons are
>>>>due in this Summer, for a total of 18.  That just might really hit 10M useful
>>>>nodes per second.
>>>>
>>>>But lots of things are left to play with, like shared vs local transposition
>>>>tables, carefully scheduling positions on nodes that have seen them before,
>>>>etc...
>>>
>>>Just curiuous, have other programs used Beowulf clusters yet?
>>>
>>>Will someone with too much money in the future be able to buy a Beowulf cluster
>>>and compile a BeoCrafty from the same source as the rest of us poor folks use
>>>for our humble PCs?
>>>
>>>Pete
>>
>>Probably.  I would hope that the beowulf version would work well on a two node
>>machine (ie two PII/500's sitting side by side with a 100baseTx connection
>>between them.)  But once that is public, doing the same with 32 quad xeons
>>will be just as easy, although I don't know how efficient it will be.
>
>It would be interesting to run it in our SQL lab :-)
>
>Eugene

At MS?  What's an SQL Lab?  Is that a bunch of PCs connected through a server or
something?

You know, Bill Gates loves talking about computer Chess, maybe there's a way to
make that happen.

Pete



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