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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++ 819 167

  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 585 149

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 527 105

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 381 72

  5. Umpire Umpire Public

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

    C++ 369 53

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 273 62

Repositories

Showing 10 of 591 repositories
  • 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 585 BSD-3-Clause 149 34 9 Updated Jul 18, 2025
  • UETOOLS Public
    LLNL/UETOOLS’s past year of commit activity
    Jupyter Notebook 3 LGPL-2.1 4 1 0 Updated Jul 18, 2025
  • quandary Public

    Optimal control for open quantum systems

    LLNL/quandary’s past year of commit activity
    C++ 53 MIT 12 5 2 Updated Jul 18, 2025
  • SSAPy Public

    A Python package allowing for fast and precise orbital modeling.

    LLNL/SSAPy’s past year of commit activity
    Python 51 MIT 11 17 1 Updated Jul 18, 2025
  • RAJA Public

    RAJA Performance Portability Layer (C++)

    LLNL/RAJA’s past year of commit activity
    C++ 527 BSD-3-Clause 105 203 (7 issues need help) 32 Updated Jul 18, 2025
  • 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 48 Apache-2.0 32 87 35 Updated Jul 18, 2025
  • serac Public

    Serac is a high order nonlinear thermomechanical simulation code

    LLNL/serac’s past year of commit activity
    C++ 203 BSD-3-Clause 35 133 (1 issue needs help) 12 Updated Jul 18, 2025
  • spheral Public
    LLNL/spheral’s past year of commit activity
    C++ 68 BSD-3-Clause 19 33 (4 issues need help) 12 Updated Jul 17, 2025
  • raja-suite-tutorial Public

    Tutorial materials for the RAJA Portability Suite

    LLNL/raja-suite-tutorial’s past year of commit activity
    C++ 8 2 11 1 Updated Jul 17, 2025
  • Umpire Public

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

    LLNL/Umpire’s past year of commit activity
    C++ 369 MIT 53 18 3 Updated Jul 17, 2025
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