Author: Kurt Utzinger
Date: 06:41:26 08/30/04
Go up one level in this thread
On August 30, 2004 at 09:18:47, Jorge Pichard wrote:
>On August 30, 2004 at 09:03:38, Albert Silver wrote:
>
>>On August 30, 2004 at 08:30:34, Kurt Utzinger wrote:
>>
>>>On August 30, 2004 at 08:12:52, Jouni Uski wrote:
>>>
>>>>Eine FPGA-Karte untersucht momentan ca. 3 Millionen Positionen/Sekunde. 16
>>>>Karten machen daher theoretisch 48 MPos/sec. (Donninger)
>>>>
>>>>Jouni
>>>
>>> If Hydra made 48 Mpos/sec this again proves (in comparison
>>> with the 2 Mpos/sec on Quad-Opteron server with 4 CPU's of
>>> Shredder) that the number of pos/sec can't be taken as a
>>> reliable value for the goodness of a chess program. It's
>>> of course simply impossible to compare apples and organes.
>>> Kurt [http://www.utzingerk.com]
>>
>>It would be necessary to have more games played to really judge the relative
>>strengths of the machines (software + hardware), but supposing the gain is 40
>>Elo per ply at this point (diminishing returns) and that Hydra is gaining one
>>ply per 3-fold speedup that would mean it is roughly 120-150 Elo stronger than
>>Shredder on that hardware.
>
>The biggest problem that we have is that we don't really know if Hydra on a
>comparable hardware is the same strenght as Shredder, therefore, to say that
>Hyrdra is 120-150 Elo stronger than Shredder would be the wrong assumption.
>Now if you take the latest Nimzo and consider that it had four upgrades in
>private and each upgrade equal to 40 Elo which is an increase of 160 Elo, than
>we can say that Nimzo (Hydra )strength is almost equal to Shredder 8 on equal
>hardware. Even if Hydra is a special program that run on parallel, I believe
>that Dr., Donninger started from his own algorithm (clone Nimzo program) and
>simply made several changes.
Hi Jorge
You might be wrong here. I guess that Hydra is a completely
new written program and not a simple "Nimzo-clone".
Kurt
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