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Subject: Re: question for DF(6) & dual owners

Author: Uri Blass

Date: 23:10:16 09/08/01

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On September 07, 2001 at 17:52:06, Mike S. wrote:

>What is the typical, or average ply depth Deep Fritz (6) calculates per move on
>your dual machine (MHz?) in a game at 40/2h, or 3 min/move?
>
>I can only make rough estimations of the speed increase from dual to 8 CPUs
>(maybe one of you can make a more precise assumption), but if we can expect it
>to be *3 times* as fast as a dual - then I think we can also expect Deep Fritz 7
>to calculate approximately *1 ply deeper* than on a dual.
>
>Is this ok?
>
>With that, we would have a better comparison with Deep(er) Blue than by the node
>rates. From the D.B. logs of 1997, I have the impression that it's typical
>searching depth was 11(6), or 17 plies, except in the endgame where it was more
>of course.
>
>I think if we base the DF7 estimation on duals from 2*800 MHz to 2*1 GHz, it
>will be ok because I think the Bahrain machine should have clock rates in this
>range. Plus one ply and we'll see roughly, what depth gap to expect to D.B.'s
>depth. If there is one :o)
>
>Regards,
>M.Scheidl

I believe that 15 plies is typical for Deep Fritz in the middle game.
I did not calculate average and my machine is only p800 but it is my impression
based on the analysis that I see.

Uri



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