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WASHINGTON, D.C. — The National Nuclear Security Administration (NNSA) has announced that Lawrence Livermore National Laboratory (LLNL) has decommissioned Advanced Simulation and Computing (ASC) Program’s Purple, the first supercomputer capable of producing the reliable three-dimensional simulations of nuclear weapons performance critical to NNSA’s program to ensure the safety, security and effectiveness of the nuclear stockpile without having to conduct testing.
Purple represented the culmination of the Accelerated Strategic Computing Initiative’s (ASCI) nearly 10-year quest to deploy a 100 teraFLOP/s (100 trillion floating point operations per second) system. Purple transformed ASCI from an initiative into today’s Advanced Simulation and Computing (ASC) program.
“The Purple machine was the icon of the Advanced Simulation and Computing Initiative kicked off in 1996 that was intended to demonstrate that science-based simulations could effectively underwrite the nation’s nuclear deterrent during a moratorium on underground nuclear explosive testing,” said Programs Don Cook, NNSA deputy administrator for defense.
“The success of Purple reinforces our confidence that we are on the right path to realizing predictive simulations for particularly tough scientific questions.”
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