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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 636 163

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 567 112

  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++ 397 63

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 284 65

Repositories

Showing 10 of 645 repositories
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 131 53 61 26 Updated Feb 26, 2026
  • RAJA Public

    RAJA Performance Portability Layer (C++)

    llnl/RAJA’s past year of commit activity
    C++ 567 112 207 (7 issues need help) 40 Updated Feb 26, 2026
  • axom Public

    CS infrastructure components for HPC applications

    llnl/axom’s past year of commit activity
    C++ 182 BSD-3-Clause 33 226 (2 issues need help) 19 Updated Feb 26, 2026
  • 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 636 BSD-3-Clause 163 30 15 Updated Feb 26, 2026
  • CHAI Public

    Copy-hiding array abstraction to automatically migrate data between memory spaces

    llnl/CHAI’s past year of commit activity
    C++ 111 BSD-3-Clause 23 16 16 Updated Feb 26, 2026
  • units Public

    A run-time C++ library for working with units of measurement and conversions between them and with string representations of units and measurements

    llnl/units’s past year of commit activity
    C++ 165 BSD-3-Clause 31 5 (1 issue needs help) 0 Updated Feb 26, 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 26, 2026
  • Caliper Public

    Caliper is an instrumentation and performance profiling library

    llnl/Caliper’s past year of commit activity
    C++ 398 BSD-3-Clause 76 27 11 Updated Feb 26, 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 19 Updated Feb 26, 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 36 140 (1 issue needs help) 16 Updated Feb 26, 2026
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