Author: Andrew Dados
Date: 04:33:40 09/05/99
Go up one level in this thread
On September 05, 1999 at 03:53:35, Ed Schröder wrote: >On September 05, 1999 at 02:54:08, Mark Young wrote: > >>On September 05, 1999 at 00:11:40, Robert Hyatt wrote: >> >>>On September 04, 1999 at 23:25:27, Mark Young wrote: >>> >>>>On September 04, 1999 at 22:17:37, Robert Hyatt wrote: >>>> >>>>>On September 04, 1999 at 18:35:32, James T. Walker wrote: >>>>> >>>>>>I feel bad for Ed and the Rebel team. It appears that ED had a corrupted >>>>>>version of Rebel loaded and it crashed 10 times during the match. It was still >>>>>>a good game in which the GM IMHO played very good.(As GM's are prone to do). I >>>>>>think his opening selection was perfect for him. He seemed to be in control >>>>>>most of the way after gambiting a pawn. >>>>>>Jim Walker >>>>> >>>>> >>>>>No.. the problem was the overclocked AMD machine. If you overclock, you ask >>>>>for trouble. And in general, if you ask often enough, you receive what you >>>>>ask for... >>>>> >>>>>I'm not counting this game in the "Is the computer a GM?" rating calculation, >>>>>as obviously Rebel was broken by the hardware. >>>>> >>>>>For the record, overclocking AMD is _bad_. I have had several horror stories >>>>>from Crafty users about this. It seems that the AMD engineers know what their >>>>>chips can run at, and going beyond that gets you into deep water. Intel seems >>>>>to be more conservative rating their chips... >>>> >>>>I heard that Ed said it was a bad version of Rebel that caused the >>>>problem....but I know your statement is true about AMD in general. >>> >>> >>>All I can say is what Ed said to me during the game... he also reported that he >>>had bogus problems in Paderborn... illegal moves in the PV, etc. It is >>>definitely possible that the program was broken, however. But I have seen log >>>files from crafty run on a misbehaving overclocked AMD, and they were pretty >>>amazing. Bogus scores, bogus moves, all sorts of nonsense... >>> >>>One person only had the problem after several consecutive games, indicating some >>>sort of thermal problem. Others just got bogus values, but things were fine >>>when the clock was set back to normal... >> >>He is what Ed posted on the Rebel Board. >> >>____________________________________________________________________________ >>Rebel lost. After 10 crashes the moves of the game are lost too. Rebel >>apparantly played with a wrong version. After 10 crashes I loaded the >>Sorin/Rohde version. No crashes since then but then it was already too late. I >>am sorry, it never happened in my whole life I played with a corrupted version. >>Expensive though! So most likely it was not the hardware. I have some homework >>to do! >>Ed >>____________________________________________________________________________ > >Some quick online notes, I will report more precisely later. > >I take the above back, it was a premature conclusion. After some more >testing after the game the version that played Sorin/Rohde also crashed. > >In the game Rebel played 40.Rg4 showing a score +2.30, that is ridiculus >of course. I can not reproduce this with any Rebel version I have. > >In any case yesterdays game was meaningless for the statistics and the >discussion if micro's are at GM level on tournamemt time control. Of >course the result remains including the financial consequences. > >Ed It is my understanding reading rules for GM Challenge that independent third party (Enrique Irazoqui) was supposed to verify Rebels moves during game. Why didn't he give you a clue that something is unreproductible/grossly wrong? (Meaning - obvious hardware failure while both program copies were identical). -Regards- Andrew
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