Author: George Speight
Date: 23:17:53 11/10/05
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On November 10, 2005 at 21:56:31, Per Jørgensen wrote: >Hello Chesscomputerfriends! > >I just a bought a new PC and I'm ready to make a lot of Enginematches (Pondern >OFF) which will result in a kind of Ratinglist. But now before starting I am >having some doubt of how much Hash Table size and TB Cache I should use to >optimize the performance of the Engines. I'm using the complete 3+4 TB's that >are included on the Shredder 9 CD and I have copied them to my Hard Disk (size: >app. 30 MB). You should know the following of my tests and new PC: > >- I'm doing testmatches with 5+5 thinkingtime, that means an average thinking >time of 10 seconds per move provided that an averagegame is 60 Moves. > >- Here are some basic facts of my new PC-system: > >Asus A8V, socket 939 Motherboard >AMD Athlon 64 4000+, The quite new San Diego core (only 90 nm), 2.4 GHz, 1 MB >Level 2 Cache >2 x 512 MB Corsair TwinX 3200 XLPT, PC3200 Ram, CAS Latency 2-2-2-5 >Windows XP operative system > >The reason I bought these High Peformance Ram is that I read a review of my new >CPU in which it was emphasized that fast memory is imperative due to the fact >that the memory controller is integrated in the CPU. Hence, fast memory should >make a real difference. > >Based on these informations; which size of Hash Tables and TB's Cache would you >recommend? My sugest: 128 MB HT for each engine and 32 MB Cache for the TB's (or >maybe 16 MB are sufficient??). > >Best regards >Per Jørgensen, Denmark Ed is pretty much right on in his advice, as usual, as this is his expertise. I will merely add what one of the top tech reps for chessbase in Germany told me after consluting with the programmers of Junior, Fritz, Shredder. Its not a perfect world but he asked them to give him a unified setting for what i was looking for. The following was their answer:(theirs, not mine) For a five minute game- 32mb hash For 40/20 minutes and 40/40 minutes, both repeating- 128mb hash for anything longer, obviously 256mb or higher. But I didnt go there, because 40/40 is the longest that interest me. Hope this is of some help. Regards, George
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