Author: Christophe Theron
Date: 12:36:01 03/28/01
Go up one level in this thread
On March 28, 2001 at 13:59:55, Robert Hyatt wrote:
>On March 27, 2001 at 17:42:40, Christophe Theron wrote:
>
>>>
>>
>>I had overlooked that it was 450PII single against 800PIII dual.
>>
>>For a factor 2 speedup the rating increase is 53 ELO, read my message.
>>
>>
>> Christophe
>
>
>That is why the scientist in me cringes at some of these posts. If I
>told you I put unleaded premium gas in my car, where I was using unleaded
>regular, and my gas milage went from 20mpg to 24mpg that would be interesting.
>If I forgot to tell you that I also replaced all the filters, spark plugs,
>plug wires, distributer cap/roter, etc, that would make that interesting
>statement very confusing. Which of the changes made the biggest difference
>in the milage?
>
>As a result, I will _always_ give 1 vs 2 vs 3 vs 4 processor tests using the
>_exact_ same _everything_. Same memory, same hash sizes, same positions,
>same exact processor (ie you can't even compare a PIII XEON with a PIII
>coppermine XEON. They are different even if the mhz is the same).
>
>I would like to see that same standard of reporting followed by everyone so
>we don't have to read the fine print, and interpolate results to make them fit
>known values.
I agree. I think Vincent can hardly make any useable comparison given the
hardware differences, but I guess he will try anyway. :)
>IE when Bruce and I were both actively working on the parallel thread stuff
>in Crafty and Ferret, we compared noted pretty frequently. We used the exact
>same test positions, same time limits, etc. So that we could see how we were
>doing. If I do tests using real games, while Bruce uses the Bratko-Kopec
>positions, it is _very_ hard to compare the results and conclude anything other
>than "they don't quite match..."
Right.
Christophe
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