I highly recommend a new super-pi built with gmp, which is much faster and also supports multi-thread computation.
Check the urls and benchmarks:
Phoronix Test Suite
The packages which are required for the GUI to function (gtksourceview version 1) are no longer available in the AUR. The process of getting the GUI to work is...tiresome
it seems that development for php-gtk is troublesome, for now I suggest we advise users to use the CLI interface or use the Live-CD which comes with a GUI interface. I don't think it would be a good idea to provide outdated php / gtksourceview versions to enable use of the GUI on Arch--stefanwilkens 14:15, 9 December 2011 (EST)