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Subject: Re: Coparing two Identical Programs using Different Processors Speed !

Author: Hristo

Date: 16:19:55 01/28/01

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Christophe,
I do beleive you are "wrong" (! ;-) ) and
Jorge is correct. However Jorges test doesn't undoubtedly prove
his conclusion. In some cases it is not a prove at all. ;-)

It is much more likely that some programs benefit more from
increased CPU (memory, ...) performance than others.
This is the case with many computer aided algoritms in general!
Take for example linear search versus binary search. Then use those
algorithms on a slow computer than can only generate 10 items to be searched
and another faster computer that can generate 1000 items. This is self evident,
no?! Computer chess programs present us with a significantly more
complicated algoritm which in its own right is not a perfect solution
to the problem at hand (chess). Firstly the benefit from improved performance
might not be large enough to measure. Secondly the "benefit" (extra more ply
than the opponent) might cause worst game results. (!!!)

Perhaps someone has done this before.
Take two computers C1 and C2. Where C1 is half the speed of C2.
Take two programs A and B.
Play a match of 100 games using the same program on both computers:
dA = A-on-C1 vs A-on-C2
dB = B-on-C1 vs B-on-C2

? dA > dB then A benefits more from higher speed.

This is not perfect test. However I'm sure you are going to get consistently
different (dA != dB) results.
It would be interesting to know what a test like that yelds ... ;-)

hristo
















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