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World's fastest supercomputer 'El Capitan' goes online — it will be used to secure the US nuclear stockpile and in other classified research


The world's fastest supercomputer 'El Capitan' can reach a peak performance of 2.746 exaFLOPS, making it the planet's third exascale computer.

The supercomputer, called "El Capitan," cost $600 million to build and will handle various sensitive and classified tasks including securing the U.S. stockpile of nuclear weapons in the absence of underground testing, according to LNNL representatives. Research will primarily be focused on national security, including material discovery, high-energy-density physics, nuclear data and weapon design, as well as other classified tasks. El Capitan became the world's fastest computer when it became fully operational last year with a score of 1.742 exaFLOPS in the High-Performance Linpack (HPL) benchmark.

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