Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Hydra node speed from CSS forum

Author: Ingo Bauer

Date: 11:57:35 08/30/04

Go up one level in this thread


On August 30, 2004 at 14:51:01, Uri Blass wrote:

>On August 30, 2004 at 13:51:48, Robert Hyatt wrote:
>
>>On August 30, 2004 at 12:24:54, Volker Böhm wrote:
>>
>>>On August 30, 2004 at 10:02:54, Robert Hyatt 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]
>>>>
>>>>
>>>>Don't forget that Hydra ripped Shredder's head off.  So the NPS _might_ be
>>>>significant here...
>>>
>>>Didn´t I´ve heard you saying that 10 games are not enough to draw a
>>>statistically significant conclusion on the playing strength?
>>>
>>>Greetings Volker
>>
>>
>>With two _close_ opponents, correct.  But if one is seriously stronger, as hydra
>>appeared to be, 10 games is plenty.
>
>We do not know if hydra is seriously stronger.
>
>You cannot start by assuming that hydra is significantly stronger when this is
>the question.
>
>If you see 10-0 you can say based on the result that Hydra is significantly
>stronger but when you see 5.5-2.5 you cannot claim it based on the result and
>you only can say that you do not know if it is significantly stronger based on
>the result.

Just some facts:

10 +3 =7 -0    65.0%   TP = +107 Elo    68%->[+70,+206]   95%->[+34,+351]

Is if 107 Elo "seriously or significantly" stronger?

Bye Ingo



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.