Author: Slater Wold
Date: 11:16:22 08/23/02
Eugene has posted the following on the speedup of various systems using Crafty: On August 22, 2002 at 20:45:33, Eugene Nalimov wrote: >Several days ago I run Crafty on 3 different dual systems. I measured only nps >reported by 'bench', not time to solve something, so resulting numbers show how >efficient dual support in the system is implemented. > >PIII/800: 1.9x >P4/2GHz: 1.86x >Athlon/1.67 1.4x > >I.e. Athlon was much faster than P4 using single CPU, but became slower when >both CPUs were used. > >Thanks, >Eugene I just wanted to report my findings: Dual AMD 1.73Ghz running Windows XP Pro and Crafty 18.15 from Hyatt's FTP site: EPD Kit revision date: 1996.04.21 found computer opening book file [./bookc.bin]. Crafty v18.15 (1 cpus) White(1): bench Running benchmark. . . ...... Total nodes: 97498164 Raw nodes per second: 911197 Total elapsed time: 107 SMP time-to-ply measurement: 5.981308 White(1): end execution complete. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ EPD Kit revision date: 1996.04.21 found computer opening book file [./bookc.bin]. Crafty v18.15 (1 cpus) White(1): mt 2 max threads set to 2 White(1): bench Running benchmark. . . ...... Total nodes: 106580575 Raw nodes per second: 1440278 Total elapsed time: 74 SMP time-to-ply measurement: 8.648649 White(1): end execution complete. Result: 1.58x nps
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