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Our people support and propel scientific discovery.

Computation is dedicated to an idea: HPC drives scientific innovation. Our programs and institutes turn this idea into reality.

We remain the leading HPC and computer science organization by promoting knowledge, insight, and discovery. We make sure that LLNL reaches mission and program goals by delivering outstanding expertise, world-class HPC capabilities, and creative technology and software solutions.

Portrait of Bruce Hendrickson, Associate Director for Computation
Bruce Hendrickson
Associate Director: Computation

Computing is in our blood at LLNL. Since our founding in 1952, we have pioneered the development of computational tools and their application to complex scientific and engineering problems. Computation develops and deploys the world-class, next-generation machines and computational science expertise that enable the science and engineering critical to NNSA national security missions.

Portrait of Ghaleb Abdulla, Director of ISCR
Ghaleb Abdulla
Director: Institute for Scientific Computing Research

The ISCR engages, educates, and empowers the next generation of computational scientists through directed research projects, sponsored conferences and seminars, computer allocations, and outreach programs.


Portrait of Terri Quinn, Department Head of Computing
Terri Quinn
Department Head: Computing

The Computing Department provides innovative hardware, applications, and tools and relevant computer science and math research to accelerate scientific discovery. Computing uses large-scale and Big Data computing, data analytics, and worldwide collaboration to address scientific grand challenges—energy generation, bio-remediation, climate science, and materials-structure aging—that are leading the way to an era of extreme-scale science.

Portrait of Katie Lewis, ASQ Division Leader
Katie Lewis
Division Leader: Applications, Simulations, and Quality

ASQ provides LLNL programs with the world-class computer science expertise required to solve challenging problems in the areas of massively parallel simulation, Web, mobile, software quality assurance, security, and product lifecycle management.

Portrait of John May, CASC Division Leader
John May
Division Leader: Center for Applied Scientific Computing

CASC performs world-class applied math, computer science, and data science research for national security problems related to the weapons program, cyber and energy security, and knowledge discovery for intelligence applications.

Jamie Van Randwyk
Division Leader: Global Security Computing Applications

GS-CAD provides tailored computer science R&D support to LLNL’s Global Security Program. Our programmers, analysts, and architects implement innovative solutions to pressing national security concerns brought to the Lab by government sponsors.

Portrait of LLNL Livermore Computing Acting Division Leader Becky Springmeyer
Becky Springmeyer
Division Leader: Livermore Computing

Livermore Computing delivers an easily accessible, world-class computing environment to LLNL scientists.

Portrait of Lisa Belk, Division Leader of NIFC
Lisa Belk
Division Leader: National Ignition Facility Computing

NIFC employees work in multidisciplinary teams to enable stockpile stewardship, fusion energy, and national security missions leveraging LLNL’s world-renowned laser technologies. More than 80 staff members contribute to the efficient operation of NIF by delivering high performance control systems, laser experiment software applications, and information technology tools.

Lori Diachin, Acting Head of Information Technology Department
Lori Diachin
Acting Department Head: Information Technology

The Information Technology (IT) Department builds and maintains teams of highly qualified individuals and develop leaders in the IT discipline.  We provide technical staff who deliver robust enterprise (IT) applications and services to LLNL programs and workforce.  Our primary areas of emphasis include end-user and computer system support, enterprise infrastructure services, and IT application development for workforce enablement, LLNL operations, and LLNL business functions.


Portrait of Brett Cornell, Division Leader of Computer Systems Support Division
Brett Cornell
Division Leader: Computer Systems Support

CSS delivers comprehensive technical expertise in IT services and solutions to enable LLNL missions. Our staff provides desktop and server support to more than 20,000 computers for organizations across LLNL.


Portrait of Kristin Ruley, Section Leader, Customer Service, Operations, and Support
Kristin Ruley
Section Leader: Customer Service, Operations, and Support

In support of the LivIT program, CSOS is vital to ensuring all LLNL employees can perform their work effectively and efficiently by providing responsive, knowledgeable, real-time problem resolution, support, and communications for a broad range of essential computer and mobile device-related IT services. The section is made up of 35 technical and operations staff who maintain a customer satisfaction rate upwards of 97 percent.

Charalynn Macedo, Division Leader, Enterprise Applications Services
Charalynn Macedo
Division Leader: Enterprise Applications Services

Enterprise Application Services (EAS) is about demonstrating business efficiency and value. Providing the right information, at the right time, at the right quality, and at the right cost. LLNL customers benefit from our high-quality, tailor-made, custom enterprise application solutions as well as strong expertise in implementing pre-packaged application software for the enterprise.

Andrew Ashbaugh, Division Leader, Enterprise Infrastructure Services
Andrew Ashbaugh
Division Leader: Enterprise Infrastructure Services

Enterprise Infrastructure Services Division manages the Laboratory’s 16,000 sq. ft. Enterprise Data Center and delivers four CIO Program services:

  • Application and enterprise web hosting
  • Database hosting
  • Managed OS (operating system) services
  • Data center colocation services
Portrait of Robyne Teslich, LLNL Information Technology Solutions Division Leader
Robyne Teslich
Division Leader: Information Technology Solutions

Communication, collaboration, mobility, and cyber security are fundamental to LLNL’s productivity, competitiveness, and overall success. We provide IT services to all LLNL employees, including e-mail, calendaring, mobile devices, and unclassified network support, as well as infrastructure services, a tier-1 help desk, and cyber technical and professional expertise.

Institute for Scientific Computing Research
Applications, Simulations, and Quality
Center for Applied Scientific Computing
Global Security Computing Applications
Livermore Computing
National Ignition Facility Computing
Information Technology
Computer Systems Support
Customer Service, Operations, and Support
Enterprise Applications Services
Enterprise Infrastructure Services
Information Technology Solutions