Author: Michael P. Nance Sr.
Date: 06:57:41 09/13/03
Go up one level in this thread
On September 13, 2003 at 09:48:31, Michael P. Nance Sr. wrote: >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 that should be WITHOUT CRASHING
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