Today the National Nuclear Security Administration (NNSA) announced a contract with Penguin Computing for a set of large-scale Open Compute HPC clusters. With 7-to-9 Petaflops of aggregate peak performance, the systems will be installed as part of NNSA’s tri-laboratory Commodity Technology Systems program. Scheduled for installation starting next year, the systems will bolster computing for national security at Los Alamos, Sandia and Lawrence Livermore national laboratories.