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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++ 843 171

  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 616 159

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 558 110

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 395 74

  5. Umpire Umpire Public

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

    C++ 389 61

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 280 65

Repositories

Showing 10 of 632 repositories
  • smith Public

    Smith is a high order nonlinear thermomechanical simulation code

    llnl/smith’s past year of commit activity
    C++ 218 BSD-3-Clause 34 135 (1 issue needs help) 15 Updated Dec 19, 2025
  • SHOCK-UQ Public

    This repository is for the Uncertainty Quantification Demystified class given at SCCM 2025.

    llnl/SHOCK-UQ’s past year of commit activity
    Python 3 MIT 1 0 0 Updated Dec 18, 2025
  • ERF Public Forked from erf-model/ERF

    Energy Research and Forecasting Model

    llnl/ERF’s past year of commit activity
    C++ 1 57 0 0 Updated Dec 18, 2025
  • clippy Public
    llnl/clippy’s past year of commit activity
    Python 5 5 3 2 Updated Dec 18, 2025
  • jsonlogic Public
    llnl/jsonlogic’s past year of commit activity
    C++ 0 MIT 0 2 2 Updated Dec 19, 2025
  • zero-rk Public

    Zero-order Reaction Kinetics (Zero-RK) is a software package that simulates chemically reacting systems in a computationally efficient manner.

    llnl/zero-rk’s past year of commit activity
    C++ 42 BSD-3-Clause 23 1 0 Updated Dec 19, 2025
  • quandary Public

    Optimal control for open quantum systems

    llnl/quandary’s past year of commit activity
    C++ 57 MIT 15 7 5 Updated Dec 19, 2025
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 125 BSD-3-Clause 50 60 23 Updated Dec 19, 2025
  • axom Public

    CS infrastructure components for HPC applications

    llnl/axom’s past year of commit activity
    C++ 179 BSD-3-Clause 31 227 (2 issues need help) 17 Updated Dec 19, 2025
  • Umpire Public

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

    llnl/Umpire’s past year of commit activity
    C++ 389 MIT 61 22 6 Updated Dec 19, 2025
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