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Japanese supercomputer first to clear 10 petaflops

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.

By November 14, 2011


Former supercomputer king Roadrunner to shut down today

Created to monitor the U.S. nuclear weapons stockpile, the IBM supercomputer was the first to break the petaflop barrier.

By March 31, 2013


IBM's Roadrunner breaks petaflop barrier, tops supercomputer list

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.

By June 18, 2008


New IBM supercomputer achieves petaflop

Big Blue breaks into the quadrillion calculation range with new Blue Gene/P supercomputer.

By June 25, 2007


Roadrunner outraces supercomputer rivals

In the latest ranking of high-performance computers, the IBM-based Roadrunner system at Los Alamos National Laboratory once again crosses the petaflop barrier.

By November 17, 2008