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Subject: Re: Crafty on Quad G5

Author: Robert Hyatt

Date: 18:10:52 12/10/05

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On December 09, 2005 at 17:53:59, Andreas Guettinger wrote:

>I compiled and tested Crafty 19.19 on a Dual Dual PowerMac G5 2.5 Ghz. The
>results are below.
>Unfortunately with the disappearance of Posix Threads fom Crafty sources since
>version 20 the SMP code of newer versions will not compile for ppc anymore.

Doesn't OSX support fork()???  and the ATT shared memory libs???


>
>Crafty v19.19 (1 cpus)
>
>White(1): bench
>Running benchmark. . .
>......
>Total nodes: 96761642
>Raw nodes per second: 1640027
>Total elapsed time: 59
>SMP time-to-ply measurement: 10.847458
>White(1): mt 4
>max threads set to 4
>White(1): bench
>Running benchmark. . .
>......
>Total nodes: 112526607
>Raw nodes per second: 5922453
>Total elapsed time: 19
>SMP time-to-ply measurement: 33.684211
>White(1): quit
>
>The 4-way Opterons will get something above 8 MNPS if I remeber correctly, but
>the lack on ineger performance of the PowerPC G5 compared with the
>Athlon64/Opteron is well known and not surprising. Still almost 6 MNPS is not
>bad.
>Maybe I will give Deep Shredder a try.
>
>regards
>Andy



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