Author: Dann Corbit
Date: 16:23:00 11/13/01
Go up one level in this thread
On November 13, 2001 at 18:03:18, Robert Hyatt wrote:
>On November 13, 2001 at 15:37:52, Slater Wold wrote:
>
>>On November 13, 2001 at 13:02:34, Joshua Lee wrote:
>>
>>>I have seen many argue this point weather or not DB had much in the way of
>>>intellegence which makes no sense do you really think that IBM would risk just
>>>having a node cruncher? Don't you think that Someone on the DB team would
>>>explain how there are many positions where brute force wouldn't work even if
>>>every cpu in the world were connected together?
>>>
>>>What technigues Can be used together and on micros? Has anyone tried to make
>>>their program more like this enigma?
>>>
>>>Here's what i found:
>>>
>>>sophisticated quiescence search
>>> - endgame heuristics
>>> - a few small endgame databases
>>> - position repetition detection
>>> - calculates mobility
>>> - evaluates space
>>> - close to 50 tables to evaluate a chess move
>>> (implied that this includes:
>>> piece square tables
>>> pawn bitmaps
>>> open file
>>> coefficient updates after each move (incremental evaluation)
>>>
>>>Deep Blue can recognize (in hardware) approximately 6,000
>>>chess-specific features
>>
>>DB's features were 75% hardware and 25% software.
>>
>>With a micro, they have to be 100% software.
>>
>>Hence the catch on trying to make something "like" it.
>>
>>DB was the last chess "super computer". Chess software is made to make money,
>>or as a hobby. Chess hardware is made to spend money, and lots of it.
>>
>>Although DT I only cost about $5,000. Less than *most* servers now. A LOT less
>>than Hyatt's quad 700. (A 700mhz Xeon CPU is about $1,300 right now. That's
>>$5,200 just in CPU's.)
>
>
>My total machine is worth about $10,000 now. We just bought another one
>identical to my machine to use for our departmental file server. Only
>difference it that the new one has 6 36 gig 10K scsi drives and a raid-5
>(hardware) controller. The chassis is now under $2K. $5K for the processors,
>a couple of hundred bucks for 512mb of RAM, and then the disks of your choice
>will give you a quad for under 10K. I don't know if Intel has released any
>quad 900 or quad 1000 certified processors. They will work in this chassis
>when/if they do.
You can easily price out an 8 CPU Xeon box at $100K. At some point, I suspect a
Cray is cheaper! When there are 5 digits in the price {not counting the
decimals} it's not a PC anymore. Beyond that, we're talking mainframe.
;-)
Here is one that starts at 25K {FOR THE BARE BONES MODEL!!}
http://rcommerce.us.dell.com/rcomm/config.asp?order_code=PE8450
I worked up a price of $102,443.00 by fiddling around with various options.
With Linux, it drops clear down to: $98,608.00
;-)
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