Roadrunner still the fastest computer in the world.

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By The Staff

Six months after Los Alamos National Laboratory’s Roadrunner edged Oak Ridge National Laboratory’s Jaguar, 1.1 05 petaflops per second to 1.059 petaflops per second, their speeds remained exactly the same.

A petaflop is a quadrillion floating-point operations per second.

The difference between first and second was only 46 terraflops difference, or forty six trillion operations per second, but it was enough for the Roadrunner to retain bragging rights for another six months.

Roadrunner was the first supercomputer to break the petaflop speed barrier and held on to the top spot once again, while Jaguar again came in second.

“We are of course pleased to be number one again, however our focus has naturally moved to using the system for science and preparing to move Roadrunner into classified operation,” said Andy White, Roadrunner project director in a prepared statement this morning.

At the present time, Roadrunner is running computational models, including HIV and supernovae calculations.

Built by IBM for LANL, Roadrunner has the additional distinction of being three times more energy efficient than the number two machine.

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