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The fastest got faster, as the K Computer topped its own record on the twice-yearly supercomputer speed test by scoring 10.51 quadrillion calculations per second.
Created to monitor the U.S. nuclear weapons stockpile, the IBM supercomputer was the first to break the petaflop barrier.
In the twice-yearly list of the fastest computers on the planet, IBM has 5 of the top 10 most powerful computers, including the No. 1 spot.
Big Blue breaks into the quadrillion calculation range with new Blue Gene/P supercomputer.
In the latest ranking of high-performance computers, the IBM-based Roadrunner system at Los Alamos National Laboratory once again crosses the petaflop barrier.