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Subject: Re: misunderstanding about PC cards (deep blue)

Author: Tom Kerrigan

Date: 10:45:09 06/28/98

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On June 28, 1998 at 06:09:47, Vincent Diepeveen wrote:

>So suppose IBM permits certain people to try to put cpu at card in PC,
>what is your conclusion about it, is it very easy possible considering
>communication speed?

I think communication speed is a total non-issue.
I just read one of Hyatt's posts saying a chip searches 2.5M NPS.
If a search takes 100,000 nodes, that's one search in 0.04 seconds.
Now, consider a chess program on the PC that searches, say, 300k NPS.
The same search would take it 0.33 seconds.
Thus, if a program uses a DB chip, it's possible (even likely) that it would go
8 times faster than it would without. Even if the communication overhead doubles
the amount of time it takes the DB chip to complete a search (impossible in my
mind), it would still make the program 4 times faster. And that's with the
chip's fancy evaluation, mind you.

Cheers,
Tom



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