http://en.wikipedia.org/wiki/Super_PI
http://www.super-computing.org/
This is a better benchmark. And universal to any operating system (Linux, BSD, Win, OS X, anything)
Entering '21' as a value, I got 91.388 sec.
Total calculation(I/O) time= 91.388( 14.327) Sec.
------ Ended super_pi run : Sat Nov 4 22:07:50 PST 2006
Early 2005 Powermac G5 dual 2Ghz / 1.5GB Ram
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Edit: Not sure if that one above is multithreaded. This one is:
http://www.xtremesystems.org/forums/archive/index.php/t-111462.html
Results:
stmiller:~/Desktop/multipi stmiller$ ./multipi.sh
**** MULTIPI 0.2: a multithreaded pi calculator ****
USE: /MultiPi <numberofiterations> <workunitsize>
<numberofiterations>: total number of iterations to find pi - DEFAULT: 100000000
<workunitsize>: divise iterations into blocks of this size to spread work over cores - DEFAULT: 5000000
WARNING: this is a beta version, do not distribute unless you're a betatester. Results may vary in future versions.
Starting Pi calculation
Available cores dedected: 2
[snip]
Pi calculated in: 01m 59.600s