Computers

Sierra, Livermore’s newest advanced technology high performance computing system, joined LLNL’s lineup of supercomputers in 2018.
The IBM BlueGene/Q Sequoia supercomputer supports NNSA classified stockpile science, produces record predictive simulations, and ranks first at running data science workloads.
The 150 teraFLOP/s Catalyst, a unique high-performance computing cluster, serves as a proving ground for new technologies, architectures, and applications.
Lassen debuted in 2018 as a smaller, unclassified system built with Sierra’s architecture.
NNSA's new capacity computing systems provide the needed computing capacity for NNSA’s day-to-day scientific work at the three labs managing the nation’s nuclear deterrent.