Author: Vincent Diepeveen
Date: 18:57:11 02/08/04
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On February 08, 2004 at 16:44:19, Aaron Gordon wrote: >On February 08, 2004 at 16:35:43, Ingo Bauer wrote: > >>On February 08, 2004 at 16:18:49, Aaron Gordon wrote: >> >>>>That only shows how bad a P4 3.0 GHz is. >>>> >>>>A Athlon @ 2.4 GHz (Real 2.4 not a 2400+) has a Shreddermark of 2784 (440kN/s) >>>>at 64 MB Hash. With 409 MB Has (To compare with the 2 GHz Opteron) it is 1237 >>>>(191 kN/s). >>>> >>>>I would be higly interested in a Shreddermark on that opteron with 64 MB Hash. >>>> >>>>Bye Ingo >>> >>>Here is my over year old Athlon XP 2100+ (1.73GHz) running 2505MHz, >>>200fsb(400DDR), Epox 8RDA motherboard. >>> >>>ShredderMark8: >>>64mb hash : 3712 @ 503kn/s >>>409mb hash: 2227 @ 309kn/s >> >>If that is true there is either something wrong with this "Shreddermark" or with >>your or my computer! >> >>Your Comp is 4% (or 100MHz - in fact its less I am running 14*173=2422 - FSB for >>Chess doesnt matter much) faster than mine and is performing 33% better in >>Shreddermarks but only 14% in kN/s (at 64 MB) >> >>In all the other test I did (e.G Solutiontime for a position) my two Athlons >>(2400 + 1850MHz /142 FSB) behave completly linear (less than 1% difference). If >>I have a value for the 1850 I can calculate the value for the 2400 (even if one >>has only 256 L2 Cache and the other 512) >> >>I tend to a broken Shreddermark!!! >> >>Ingo > >The test only takes 0.3 seconds and the timer is probably not that accurate as >well. It COULD be an accurate test if it ran a good minute (or more) and timed >down to the millisecond. Measuring for 0.3 seconds is not so clever, a second or 4 would be better indeed. It still doesn't change facts and that's that shredder is a different program from fritz. It means it heavily uses RAM in contradiction to Fritz. Additionally we do not know for the different hashtable sizes in shredder how they are divided when total hashtable size changes. So it is very hard to tell the real differences between 401+ MB versus 64MB. The only one knowing this is Stefan and he won't be soon posting about this publicly. Further i expect you use XP. There can be other problems as well like things not caching under a certain size or caching in general more or less. In diep evaluation hashtable nowadays is like 32 MB and pawnhashtable 16 MB. The tests show clearly this is different in shredder. The real interesting thing is that the opteron is 60% faster than the K7 for shredder. This is similar to findings from others with their own program as well. It basically confirms superiority of the opteron for chessprograms and AI in general. Vincent
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