Author: Bernhard Bauer
Date: 23:08:16 09/04/02
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On September 04, 2002 at 21:19:05, Robert Hyatt wrote: >If anyone has the time, and a dual-cpu machine, would you run the following >position to depth 13 using first one cpu, then restarting, and running it again >with two processors? Everything else at default values. > >2r2rk1/1bqnbpp1/1p1ppn1p/pP6/N1P1P3/P2B1N1P/1B2QPP1/R2R2K1 b - - 0 1 > >That is kopec position 22, one of my favorites. I am only interested in >two numbers, the raw NPS for 1 cpu, and the raw NPS for two cpus. I don't care >about the times or anything, just the NPS... > >Please include your cpu/speed/vendor/etc... > >Vincent thinks that the 2-cpu test will slow way down in terms of NPS. I >can't reproduce it on my machines here. Eugene can't reproduce it on Intel >boxes, but the two AMD machines he has tried produce 1.4X the nps using two >that it produces using 1, while my machines produce about 1.9X the nps... > >Thanks... My modified version of crafty18.15 gives: mt depth time score nps 1 13 66 -0.43 212k 2 13 34.5 -0.43 407k I hope the table is readable. Machine: 2xP3-450 Kind regards Bernhard
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