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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++ 835 170

  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 606 156

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 540 108

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 392 73

  5. Umpire Umpire Public

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

    C++ 384 59

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 277 66

Repositories

Showing 10 of 621 repositories
  • Tribol Public

    Modular interface physics library featuring state-of-the-art contact physics methods.

    LLNL/Tribol’s past year of commit activity
    C++ 32 MIT 8 27 8 Updated Oct 23, 2025
  • Silo Public

    Mesh and Field I/O Library and Scientific Database

    LLNL/Silo’s past year of commit activity
    C 34 26 111 2 Updated Oct 23, 2025
  • SSAPy Public

    A Python package allowing for fast and precise orbital modeling.

    LLNL/SSAPy’s past year of commit activity
    Python 57 MIT 12 10 1 Updated Oct 23, 2025
  • hiop Public

    HPC solver for nonlinear optimization problems

    LLNL/hiop’s past year of commit activity
    C++ 223 45 37 9 Updated Oct 23, 2025
  • ERF Public Forked from erf-model/ERF

    Energy Research and Forecasting Model

    LLNL/ERF’s past year of commit activity
    C++ 1 56 0 0 Updated Oct 23, 2025
  • spheral Public
    LLNL/spheral’s past year of commit activity
    C++ 70 BSD-3-Clause 22 29 (3 issues need help) 8 Updated Oct 23, 2025
  • quandary Public

    Optimal control for open quantum systems

    LLNL/quandary’s past year of commit activity
    C++ 54 MIT 13 5 5 Updated Oct 23, 2025
  • 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.

    LLNL/sundials’s past year of commit activity
    C 606 BSD-3-Clause 156 30 5 Updated Oct 23, 2025
  • Wintap Public

    An extensible host-based agent for Windows.

    LLNL/Wintap’s past year of commit activity
    C# 16 MIT 2 0 0 Updated Oct 23, 2025
  • llnl.github.io Public

    Public home for LLNL software catalog

    LLNL/llnl.github.io’s past year of commit activity
    JavaScript 60 MIT 58 15 0 Updated Oct 23, 2025
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