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Lawrence Livermore National Laboratory

For over 70 years, the Lawrence Livermore National Laboratory has applied science and technology to make the world a safer place.

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  1. zfp zfp Public

    Compressed numerical arrays that support high-speed random access

    C++ 849 176

  2. sundials sundials Public

    Official development repository for SUNDIALS - a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. Pull requests are welcome for bug fixes and minor changes.

    C 634 163

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 566 112

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 398 76

  5. Umpire Umpire Public

    An application-focused API for memory management on NUMA & GPU architectures

    C++ 396 62

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 284 65

Repositories

Showing 10 of 640 repositories
  • quandary Public

    Optimal control for open quantum systems

    llnl/quandary’s past year of commit activity
    C++ 57 MIT 15 7 2 Updated Feb 18, 2026
  • spheral Public
    llnl/spheral’s past year of commit activity
    C++ 73 BSD-3-Clause 23 35 (1 issue needs help) 10 Updated Feb 18, 2026
  • pEyeON Public

    Repository for the EyeON file manifest tool

    llnl/pEyeON’s past year of commit activity
    Python 4 MIT 1 7 7 Updated Feb 18, 2026
  • conduit Public

    Simplified Data Exchange for HPC Simulations

    llnl/conduit’s past year of commit activity
    C++ 239 70 198 10 Updated Feb 18, 2026
  • benchpark Public

    An open collaborative repository for reproducible specifications of HPC benchmarks and cross site benchmarking environments

    llnl/benchpark’s past year of commit activity
    Python 66 Apache-2.0 43 130 21 Updated Feb 18, 2026
  • STAT Public

    STAT - the Stack Trace Analysis Tool

    llnl/STAT’s past year of commit activity
    C 67 26 7 1 Updated Feb 18, 2026
  • AMS Public
    llnl/AMS’s past year of commit activity
    C++ 8 Apache-2.0 9 21 7 Updated Feb 18, 2026
  • maestrowf Public

    A tool to easily orchestrate general computational workflows both locally and on supercomputers

    llnl/maestrowf’s past year of commit activity
    Python 152 MIT 44 69 (9 issues need help) 14 Updated Feb 18, 2026
  • smith Public

    Smith is a high order nonlinear thermomechanical simulation code

    llnl/smith’s past year of commit activity
    C++ 224 BSD-3-Clause 36 139 (1 issue needs help) 16 Updated Feb 18, 2026
  • llnl.github.io Public

    Public home for LLNL software catalog

    llnl/llnl.github.io’s past year of commit activity
    JavaScript 63 MIT 58 14 0 Updated Feb 18, 2026
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