Author: Michael P. Nance Sr.
Date: 06:48:31 09/13/03
Go up one level in this thread
On September 13, 2003 at 09:21:59, m.d.hurd wrote: >On September 13, 2003 at 08:59:34, William Penn wrote: > >>On September 13, 2003 at 07:30:49, m.d.hurd wrote: >> >>>On September 12, 2003 at 21:40:13, William Penn wrote: >>> >>>>[running Shredder 7 with the March 2003 GUI update] >>>> >>>>I have 1024MB (1GB) RAM. My video graphics siphons off 32MB, leaving 992MB >>>>available. Shredder 7 therefore decides, by some kind of internal formula, that >>>>my maximum allowed hash shall be 784MB. It refuses to allow me to set it any >>>>larger. No matter what I've tried, it reverts to 784MB or less. >>>> >>>>Note: For those who have 1GB RAM free and clear (100% available), the hash limit >>>>shall be 816MB instead of my 784MB. (784+32=816) I expect this is the same >>> >>>On my machine it is 819 MB >>> >>> >>>>the Fritz 8 GUI, which I believe is identical to the Shredder 7 GUI. Of course >>>>I'm talking about the Chessbase GUI, not the Classic Shredder one. >>>> >>>>I really should be able to set my hash to 800MB (or perhaps a little more) >>>>without a serious system problem, but the Shredder won't allow it. It would take >>>>a little longer for the swapfile, but that's OK with me. I'm not in a big hurry! >>>>I only run Shredder in infinite mode for an hour or more anyway, so I don't care >>>>if it takes 5 minutes for the swapfile. If it is taking too long, I can always >>>>abort it. But Shredder 7 refuses to give me that option... >>>> >>>>Yes, I know it won't help the engine's strength significantly, but I'd like to >>>>try it nevertheless. Maybe I just like round numbers -- 800MB sounds better to >>>>me than 784MB! >>> >>>Go here for info : http://www.chessbase.com/support/support.asp?pid=199 >>> >>> >>>>Anybody know a tweak to allow this? I've tried some obvious tweaks with the .ini >>>>files, and looked around in the system registry, but didn't get lucky. If anyone >>>>knows how to do this, I'd very much like that info. >>>>Thanks. >>>>WP >>> >>>Regards >>> >>>Mike >> >>Based on the formula in that article... >> >>HT[KB] = 2.0 * PFreq[MHz] * t[s] >> >>I have a 2.0MHz processor, and analyze each move for at least 1 hour (3600 >>seconds) in Infinite Analysis mode. I do not use any other time controls. >>Therefore my optimum hash size would be 14.4GB. So obviously I should set my >>hash as high as possible for optimum results. >> >>However that isn't possible with the current Shredder 7/Fritz 8 GUI. When you >>enter a larger-than-recommended-maximum hash size, it asks whether it should >>ignore the recommended maximum size (Yes/No). Then it completely ignores your >>choice, and refuses to set the hash to whatever you've entered if larger than >>the recommended maximum. That is presumably a bug in their algorithm's logic, >>and I need to know how to get around it (tweak it, so it works correctly)... >>WP > >The highest mine will go is 818 MB. I would guess that the programmers have been >consertavative and assumed windows will take a chunk of memory plus the gui of >chessbase and calculated that around 80% should be the maximum available which >prevents a new user from crashing his machine. > >Regards > >Mike I have serval Boxes with a gig(1024 mb) of memory. Each one reverts back to 818 when You click for a new game. I always hit the optimization and it then sets to 819. This is for Fritz,Junior,and Shredder. This is the highest allowed by Chessbase ,so You don't BLUE SCREEN. Altho, I have played beyond that setting ,with crahing.>>>>Mike
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