IBM closes in on petaflop barrier

November 14, 2007 Astronomical figures abound in the world of supercomputing and the numbers have just become even more astounding with IBM continuing its four-year domination of the official TOP500 Supercomputer Sites List with a new world record courtesy of the Blue Gene/L supercomputer. Although the Blue Gene/L, located at the Lawrence Livermore national Laboratory in California, has held the number one position since November 2004, the system was significantly expanded this summer to deliver a sustained performance of 478 trillion calculations per second (478 “teraflops”).

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