All IBM Supercomputers

IBM has built several landmark supercomputers across different eras and purposes. Deep Blue, developed at IBM after originating as Carnegie Mellon University's ChipTest and Deep Thought projects, became the first computer to defeat a reigning world chess champion in a match under standard time controls, in 1997. The Blue Gene project pursued a different goal, designing highly power-efficient parallel supercomputers able to reach petaflop-scale performance for scientific research. Roadrunner, built for the United States Department of Energy's Los Alamos National Laboratory, became the world's first sustained petaflop system in 2008 using a hybrid Cell and Opteron design. Summit, installed at Oak Ridge National Laboratory's Leadership Computing Facility, held the top position on the TOP500 list from 2018 to 2020 and later reached 148.6 petaflops on the LINPACK benchmark. Together these systems trace IBM's continuing role at the frontier of high-performance computing across chess-playing, low-power parallel and leadership-class scientific machines.