Computers

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