Author: William Penn
Date: 11:01:35 09/14/03
Go up one level in this thread
On September 14, 2003 at 09:21:20, Michael P. Nance Sr. wrote: >On September 13, 2003 at 21:06:11, William Penn wrote: > >>On September 13, 2003 at 09:57:41, Michael P. Nance Sr. wrote: >> >>>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 >> >>Thanks guys. I guess nobody knows how to do it. I'll keep looking. >> >>I only had 128MB RAM in this Walmart machine when I took it out of the box. I >>installed Shredder 7 and was able to use 48MB hash, no problem, although of >>course the system was sluggish. I lowered that to 32MB hash and didn't have any >>problems with it. >> >>Then I put in 1024-128=896MB more RAM (1G total). So I really should be able to >>try a setting of 32+896=928MB hash. Certainly I could use 900MB hash and there >>wouldn't be a computer crash. Yet Shredder 7 arbitrarily decides that I shall be >>limited to 784MB hash. I don't like it! I should have the option to try whatever >>hash size I wish. And it really SHOULD work that way, but the operation involved >>is buggy - it seems to me. >>WP >I beleive the size of Your Box limits Shredder not Shredder. Because Mine go way >higher than that. >>>>Mike Thanks for the clue. I hadn't considered that it might be my computer's op system rejecting the larger hash size, rather than Shredder. I guess that's possible, but believe it's more likely a Shredder bug. WP
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