National Center for Computational Sciences

Buddy Bland, OLCF Project Director, accepts the Top500 award presented at ISC10 in Hamburg, Germany.

Oak Ridge National Laboratory’s (ORNL’s) Cray XT5 high-performance computing system, Jaguar, remained #1 on the TOP500 list of the world’s fastest supercomputers, issued at the International Supercomputing Conference in Hamburg May 30-June 3. Close behind, however, is China’s Nebulae, which has knocked Los Alamos’s Roadrunner out of the number two spot. Kraken, Jaguar’s National Science Foundation-funded roommate at ORNL, is at number four.

Jaguar races through calculations at a peak speed of 2.33 quadrillion floating point operations per second (2.33 petaflops). “Maintaining a world-leading computational capability like Jaguar for our users is key to achieving the science mission of the laboratory and the Department of Energy, which depends more than ever on simulations to probe climate, energy systems, and national security,” says ORNL Associate Laboratory Director for Computing and Computational Sciences Jeff Nichols.

Jaguar, located at the Oak Ridge Leadership Computing Facility, held on to the No. 1 spot on the TOP500 with its record 1.75 petaflop/s performance speed running the Linpack benchmark. Nebulae’s peak performance is rated at 1.27 petaflop/s.

The next TOP500 ranking will be announced at the November Supercomputing conference.