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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.

Popular repositories Loading

  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
  • 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
  • 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) 1 Updated Feb 26, 2026
  • 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++ 45 BSD-3-Clause 25 1 0 Updated Feb 26, 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 26, 2026
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 131 53 61 25 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
  • spheral Public
    llnl/spheral’s past year of commit activity
    C++ 74 BSD-3-Clause 23 35 (1 issue needs help) 10 Updated Feb 26, 2026
  • quandary-examples Public

    Examples for Quandary

    llnl/quandary-examples’s past year of commit activity
    Jupyter Notebook 1 MIT 0 0 2 Updated Feb 26, 2026
  • mgmol Public

    MGmol is a scalable O(N) First-Principles Molecular Dynamics code that is capable of performing large-scale electronics structure calculations and molecular dynamics simulations of atomistic systems.

    llnl/mgmol’s past year of commit activity
    C++ 45 15 10 8 Updated Feb 25, 2026
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