November 15, 2009, 9:00 pm
The Cray XT5 supercomputer known as “Jaguar” has finally clawed its way to the title of fastest computer in the world.
Sitting back at No. 2 on the Top500 list of supercomputers for more than a year, Jaguar overtook IBM’s “Roadrunner” according to the twice-yearly list that will be unveiled Tuesday at the SC09 Conference in Portland, Ore.
Jaguar beat out the competition by showing it can process 1.75 petaflop/s, or quadrillions of floating point operations per second, according to the Top500 Linpack benchmark. IBM’s Roadrunner was pushed back to No. 2 by posting a processing speed of 1.04 petaflop/s, a dip from the 1.105 petaflop/s it reached in a June 2009 test. The slower performance this time around is apparently due to a repartitioning of the system…