"Even as Silicon Graphics Inc. trumpeted on Tuesday a new speed
     record with the Columbia supercomputer it built for NASA, CNET
     News.com has learned, it quietly submitted another, faster result:
     51.9 trillion calculations per second.

     "During the unveiling of the Columbia supercomputer, SGI touted a
     speed of 42.7 trillion calculations per second, or 42.7 teraflops.
     That handily beat the machine at the top of a list of the world's
     500 fastest machines, NEC's Earth Simulator at 35.9 teraflops, as
     well as a top challenger, IBM's Blue Gene/L at 36.0 teraflops..."