High Performance Computing | Livermore Computing

News

Optimizing Math Libraries to Prepare for Exascale Computing

This episode of Let’s Talk Exascale takes a brief look at the xSDK4ECP and hypre projects within the Software Technology research focus area of the US Department of Energy’s Exascale Computing

Podcast: SCR Scalable Checkpoint/Restart Paves the Way for Exascale

In this Let’s Talk Exascale podcast, researchers involved with the Scalable Checkpoint/Restart (SCR) Framework describe how it will enable users of high-performance computing systems to roll with

Kathryn Mohror and fellow researcher in front of scientific poster

Software Enables Use of Distributed In-System Storage and Parallel File System

A software product from the Exascale Computing Project (ECP) called UnifyFS can provide I/O performance portability for applications, enabling them to use distributed in-system storage and the

Join Our Team

Looking for a challenge? Livermore Computing offers one of the most stable, stimulating work environments anywhere. Career opportunities in system administration, visualization, and data analysis emphasize creative technology, advanced research, and multidisciplinary collaboration.

Top-Ranked Supercomputers at Livermore Computing Center

Sierra

Our newest supercomputer, Sierra, is nearing completion and projected to provide four to six times the sustained performance and five to seven times the workload performance of Sequoia, with ~125 petaFLOP/s peak. The Collaboration of Oak Ridge, Argonne and Lawrence Livermore, also known as CORAL, represents an innovative procurement strategy to accelerate the development of high performance computing. Sierra is the Livermore system acquired as a result of the CORAL procurements, which will influence the modernization of future generations of computing throughout the NNSA complex.

More about Sierra

Sequoia

Ranked among the world’s most powerful supercomputers, Sequoia supports two missions: quantify the uncertainties in numerical simulations of nuclear weapons performance and perform the advanced weapons science calculations needed to develop the accurate physics-based models for weapons codes. Sequoia is primarily water-cooled and significantly more energy efficient than comparable systems, which is essential to control operating costs.

Sequoia has been ranked in the top ten on the Graph500 list since November 2012, indicating that it is one of the most efficient systems in the world for processing extremely vast (petabyte and exabyte-size) data sets. The Graph500 benchmark measures how quickly a system can search through a large data set—an important indicator of a system's usefulness as computer scientists increasingly use supercomputers to analyze massive data-intensive workloads in addition to executing traditional modeling and simulation tasks.

More about Sequoia

Lassen

Lassen, an unclassified, heterogeneous IBM/NVIDIA system with the same architecture as Sierra but smaller, placed No. 10 on the June 2019 Top500 list with a High Performance Linpack (HPL) benchmark score of 18.2 petaFLOPS (18.2 quadrillion point operations per second) boosting its original 15.4 petaFLOP performance from the previous November.

More about Lassen

A flagship facility in the Advanced Simulation and Computing Program, Livermore Computing houses some of the world's fastest supercomputers accessible to ~3000 researchers.

Computing advances the frontiers of computational science and delivers game-changing solutions to society’s biggest challenges in energy, environment, and national and global security. Our research and development activities are applications driven and are focused on LLNL programmatic objectives.

Search form

Livermore
Computing Center

HPC News

Computing Resources

User Portal

Sierra

Sequoia

Lassen

Advanced Simulation and Computing

Computing Directorate