Hey Mike, I got curious and found this on Wiki....do you actually work with the Cray? If so, I'm green with envy
"As of May 2011[update], the largest computer system Cray has delivered is the XT5 system at National Center for Computational Sciences at Oak Ridge National Laboratories.[9] This system, with over 224,000 processing cores, is dubbed "Jaguar" and was the fastest computer in the world as measured by the LINPACK benchmark[10] at the speed of 1.75 petaflops[11] until being surpassed by the Tianhe-1A in October 2010. It is the fastest system available for open science and was the first system to exceed a sustained performance of 1 petaflops on a 64-bit scientific application; it has since been upgraded to a peak performance of more than two petaflops"