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Subject: Re: playing with the Opteron - Part I.

Author: Robert Hyatt

Date: 13:05:14 01/26/04

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On January 26, 2004 at 15:56:23, Matthew Hull wrote:

>On January 26, 2004 at 15:47:56, Robert Hyatt wrote:
>
>>This is probably the best result I have ever seen from Crafty.  I am simply
>>running some "sanity checks" to make sure everything is functioning, after a few
>>recent changes.  Here is my first test, WAC at 1 second per move:
>>
>>total positions searched..........         300
>>number right......................         299
>>number wrong......................           1
>>percentage right..................          99
>>percentage wrong..................           0
>>total nodes searched..............   109706792
>>average search depth..............         4.6
>>nodes per second..................     6522401
>>
>>It misses #230.
>>
>>I re-compiled with Dann's favorite -DDETECTDRAW and at one second per move,
>>blasted out the following result:
>>
>>total positions searched..........         300
>>number right......................         300
>>number wrong......................           0
>>percentage right..................         100
>>percentage wrong..................           0
>>total nodes searched..............   103251953
>>average search depth..............         4.5
>>nodes per second..................     5713998
>>
>>I will try to run some other tests as I continue looking at things.  I am also
>>once again experimenting with the -DFUTILITY stuff that Jeramiah wrote, to see
>>how it affects things on this really monster box.
>>
>>BTW for those that have asked, "crafty" is playing on ICC most of this week
>>using this box.  Scrappy is running on my normal dual xeon 2.8 all the time...
>
>
>How much higher than 4-way do they stack the chips in this series of machine?


I don't really know.  they have 8-way boxes available for testing.  I suppose it
will depend on what the market demands, but I'd bet that 16-way is available at
a price, since Intel already has 64-way Itaniums out...




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