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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++ 844 171

  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 617 159

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 559 110

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 396 74

  5. Umpire Umpire Public

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

    C++ 392 61

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 281 65

Repositories

Showing 10 of 632 repositories
  • llnl.github.io Public

    Public home for LLNL software catalog

    llnl/llnl.github.io’s past year of commit activity
    JavaScript 61 MIT 58 14 0 Updated Dec 28, 2025
  • romweb Public

    Reduced order model (ROM) website

    llnl/romweb’s past year of commit activity
    Less 1 0 0 0 Updated Dec 28, 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 28, 2025
  • scaleupROM Public

    Scalable Reduced Order Model with Discontinuous Galerkin Domain Decomposition

    llnl/scaleupROM’s past year of commit activity
    C++ 11 MIT 6 2 6 Updated Dec 27, 2025
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 127 BSD-3-Clause 50 60 25 Updated Dec 27, 2025
  • ygm Public
    llnl/ygm’s past year of commit activity
    C++ 39 27 6 6 Updated Dec 27, 2025
  • axom Public

    CS infrastructure components for HPC applications

    llnl/axom’s past year of commit activity
    C++ 180 BSD-3-Clause 32 228 (2 issues need help) 17 Updated Dec 26, 2025
  • hiop Public

    HPC solver for nonlinear optimization problems

    llnl/hiop’s past year of commit activity
    C++ 225 45 37 9 Updated Dec 27, 2025
  • echemfem Public

    Finite Element Method for Electrochemical Transport (EchemFEM)

    llnl/echemfem’s past year of commit activity
    Python 25 MIT 5 0 0 Updated Dec 26, 2025
  • inq Public

    This is a mirror. Please check our main website on gitlab.

    llnl/inq’s past year of commit activity
    C++ 29 MPL-2.0 5 1 1 Updated Dec 26, 2025
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