Author: Ed Schröder
Date: 04:53:57 09/05/99
Go up one level in this thread
On September 05, 1999 at 07:33:40, Andrew Dados wrote: >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). This was done in game one against GM Rohde. But then from game-2 and on I switched to the special KryoTech machine. Enrique now checks the game afterwards because the KryoTech machine runs twice as fast as a PII-450. Ed Schoder >-Regards- > Andrew
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