2. IBM Roadrunner
IBM Roadrunner was crowned No. 1 in June 2008 after becoming the first supercomputer to break one petaflop/s. IBM’s Roadrunner managed 1.042 petaflops. The supercomputer is located at the Los Alamos National Laboratory.
The world’s fastest supercomputer according to TOP500 supercomputer list of 2009 is Cray XT5, also known as Jaguar. Jaguar bagged the No. 1 spot, beating IBM’s Roadrunner, who held the top crown from 2008 to 2009. It can perform more than 1 quadrillion calculations per second.
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