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Subject: Re: Crafty 17-10 v Fritz 6a ponder=on Single cpu

Author: Dann Corbit

Date: 12:55:14 04/28/00

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On April 28, 2000 at 15:36:59, Christophe Theron wrote:
[snip]
>While I think the ponder=off experiment is a valid one (at least to see how
>program strength varies with time controls), I have doubts about ponder=on on
>one CPU.
>
>If you can, I would suggest you use 2 computers. But if you do not have 2
>identical computers, ponder=on on one CPU will maybe tell us something too...

Here I agree.  Which program dominates will depend largely on how effectively a
program grabs all of the CPU.  If a program had an occasional
yield()/sleep()/whatever in it so that other programs could get a chip of CPU
from time to time or at least the mouse moved freely, it might crush that
program in that setting.

I don't think the machines have to be equal, as long as you alternate and play
at least 4 games.  E.g. with Winboard, use /mg 4.

However, if the machines are totally lopsided (e.g. p5 against AMD Athlon) then
that would harm results also.  But as long as the machines are within 2x of each
other, I think you would still get data of some value.







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