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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 637 163

  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 646 repositories
  • spheral Public
    llnl/spheral’s past year of commit activity
    C++ 74 BSD-3-Clause 23 35 (1 issue needs help) 9 Updated Feb 27, 2026
  • quandary Public

    Optimal control for open quantum systems

    llnl/quandary’s past year of commit activity
    C++ 57 MIT 15 7 4 Updated Feb 27, 2026
  • SEAMsurrogates Public

    Shared Education in Artificial intelligence and Machine learning (SEAM) professional development course on "Surrogate Modeling and Design Optimization," as designed at LLNL.

    llnl/SEAMsurrogates’s past year of commit activity
    Python 5 1 5 0 Updated Feb 27, 2026
  • radiuss-spack-configs Public

    Shared spack configurations for RADIUSS projects

    llnl/radiuss-spack-configs’s past year of commit activity
    Python 3 MIT 11 0 1 Updated Feb 27, 2026
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 131 BSD-3-Clause 53 60 22 Updated Feb 27, 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 43 125 20 Updated Feb 27, 2026
  • libyogrt Public

    Your One Get Remaining Time library

    llnl/libyogrt’s past year of commit activity
    C 8 LGPL-2.1 10 3 0 Updated Feb 27, 2026
  • RAJA Public

    RAJA Performance Portability Layer (C++)

    llnl/RAJA’s past year of commit activity
    C++ 567 BSD-3-Clause 112 207 (7 issues need help) 38 Updated Feb 27, 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 36 139 (1 issue needs help) 15 Updated Feb 27, 2026
  • Tribol Public

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

    llnl/Tribol’s past year of commit activity
    C++ 35 MIT 9 28 11 Updated Feb 27, 2026
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