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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++ 840 170

  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 611 159

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 552 109

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 393 74

  5. Umpire Umpire Public

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

    C++ 388 60

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 279 66

Repositories

Showing 10 of 629 repositories
  • 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 60 Apache-2.0 40 131 31 Updated Dec 3, 2025
  • quandary Public

    Optimal control for open quantum systems

    LLNL/quandary’s past year of commit activity
    C++ 56 MIT 14 7 3 Updated Dec 3, 2025
  • datacrumbs Public

    A multi-level dataflow profiler for capture I/O calls from worklows.

    LLNL/datacrumbs’s past year of commit activity
    Jupyter Notebook 3 MIT 7 7 4 Updated Dec 4, 2025
  • smith Public

    Smith is a high order nonlinear thermomechanical simulation code

    LLNL/smith’s past year of commit activity
    C++ 218 BSD-3-Clause 36 137 (1 issue needs help) 17 Updated Dec 3, 2025
  • AMS Public
    LLNL/AMS’s past year of commit activity
    C++ 8 Apache-2.0 9 25 8 Updated Dec 4, 2025
  • maestrowf Public

    A tool to easily orchestrate general computational workflows both locally and on supercomputers

    LLNL/maestrowf’s past year of commit activity
    Python 152 MIT 44 65 (9 issues need help) 14 Updated Dec 4, 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 4, 2025
  • repligit Public

    A Git client for mirroring multiple remotes without storing state

    LLNL/repligit’s past year of commit activity
    Python 4 Apache-2.0 2 1 1 Updated Dec 3, 2025
  • axom Public

    CS infrastructure components for HPC applications

    LLNL/axom’s past year of commit activity
    C++ 178 BSD-3-Clause 31 227 (2 issues need help) 15 Updated Dec 4, 2025
  • radiuss-spack-configs Public

    Shared spack configurations for RADIUSS projects

    LLNL/radiuss-spack-configs’s past year of commit activity
    Python 2 MIT 10 0 5 Updated Dec 4, 2025
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