Author: Aaron Gordon
Date: 11:08:30 12/21/02
Go up one level in this thread
On December 21, 2002 at 08:54:58, Bob Durrett wrote: >On December 20, 2002 at 23:33:35, Aaron Gordon wrote: > >>On December 20, 2002 at 21:55:31, Bob Durrett wrote: >> >>>On December 20, 2002 at 21:32:18, Sean Mintz wrote: >>> >>>>It's a hobby for some people to overclock their computers and for some it's >>>>interesting to see what they can get done. Also, it's just one way to compare >>>>AMD/Intel in a way a lot of people only understand (mhz to mhz). I think >>>>everyone used the same hash sizes for that benchmark. >>> >>>What hash sizes do you suppose they use? Anybody? >>> >>>Bob D. >> >>http://www.talkchess.com/forums/1/message.html?271912 > >I must be getting senile. The question was already answered. : ( > >But the main point is that the hash table sizes used for the tests was the >absolute minimums. That means that the Kn/s figures given in the Crafty v18.11 >Benchmark test were INFLATED. It would have been much more informative to see >the Kn/s figures for *realistic* hash table sizes. Why? Because if someone >[like me] is considering the purchase of a newer [supposedly faster] computer, >then they will want wish to know what to expect. > >Bob D. I used the default hash size becase as I said before crafty scales linearly and it's easier for people to test, they don't need to use a crafty.rc file or mess with anything. Most of the computers on that list are from friends that haven't the slightest clue about computer chess. Also one thing I've noticed here when you crank up the hash table on a P4 and Athlon is the Athlon actually pulls ahead even more. Why this is I'm not sure (because it's done it on DDR & RDRAM P4's). Like a P4-2.8 to P4-3.0 would hold basically even with my AthlonXP @ 1.8-1.86GHz at lower hash sizes, when we used 256mb (for like Hiarcs8, Fritz 7, Crafty, etc) my Athlon would start pulling away and take the lead. If anyone could explain why this is I'd appreciate it. You'd figure it would be the other way around (since P4's have more memory bandwidth).
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