Author: Terry McCracken
Date: 16:28:11 04/02/01
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On April 02, 2001 at 18:12:29, Rory Nolan wrote: >Hello all, > >I have been trying to run some Fritzmarks and am having problems. >Firstly if I try to go above 184mb for hash I get the message 'not enough >memory'. >Also Fritz6e will not run the fritzmark. I set it up and the engine >automatically switches to Fritz 5.32 > >My System: AMD 750 oc'd to 950, 512mb ram, windows ME. > >many thanks for your help > >Rory You can find "FritzMark" in your help files. However I'll post it here. As for your ram I'm not clear on this, unless "FritzMark" has a _cap_ on hash for running it? I only have 128MB of ram so it loads 64MB by default. If I want to use more it will require disk cache swapping. But you have 512MB of ram, I'm surprised you can't run 256MB? As I said maybe there's a limit? The Fritz 5.32 is _Allways_ used in the "FritzMark" as a standard, this is explained in the help files. Regards, Terry McCracken FritzMark -------------------------------------------------------------------------------- Menu: Tools – FritzMark The speed of the hardware Fritz is running on has great influence on its playing strength. Obviously a 500 MHz Pentium is going to give you a much better performance than one running at 200 MHz. But the optimum configuration of the hardware also plays an important role. For instance the amount of first and second level cache, the speed of access to memory, and other such factors, can lead to considerable variance. Two computers with exactly the same processor may produce substantially different results with Fritz. The “FritzMark” is a special benchmark that allows you to test the chess specific performance of your hardware. In order to make the results reproducible it will always be conducted with the Fritz5 engine. The results of the FritzMark test depend to a great extent on the size of the hash tables. It also varies according to the number of applications you have running in the background. You should use the test to check the effectiveness of your current configuration. Here are some typical FritzMarks: Hardware FritzMark Pentium 200, 32 MB Hash 100 Pentium 200 MMX, 32MB Hash 115 PentiumII 300, 32MB Hash 188 PentiumII 450, 32MB Hash 285 The FritzMark also gives you the number of positions Fritz is generating and evaluating per second. This value (in “kilo nodes”) is independent of hash tables and reflects mainly the processor speed. You should get roughly the clock frequency of the processor divided by 1000 positions, i.e. on a 200 MHz (= 200 million operations per second) Fritz should produce roughly 200,000 positions per second. Under Windows 95 or 98 there is a surprising variance in the performance of the engine on the same machine. Simply reloading the engine may cause it to speed up or slow down by up to five percent. So before you play an important game it is advisable to run the FritzMark and check that everything is running at an acceptable speed. And you may want to reload the engine, if the value is lower than the one you usually get.
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