Researchers at the University of Tsukuba in Japan have broken the record for the number of calculated digits of the constant pi:
The T2K Tsukuba System is a 640-computer cluster with a processing speed of 95 trillion floating-point operations per second. The T2K calculated a total of 2,576,980,377,524 decimal places in 73 hours 36 minutes, which is a small fraction of the 600 hours taken by the previous record holders—Hitachi and the University of Tokyo—who calculated only 1.2 trillion places.
Link
All we're doing here is benchmarking cluster performance and giving autistic savants new things to memorize.
(oh, wait! I know! http://www.worldcommunitygrid.org !)
I just had to say that.