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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++ 848 172

  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 625 163

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 564 111

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 396 75

  5. Umpire Umpire Public

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

    C++ 396 61

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 284 65

Repositories

Showing 10 of 635 repositories
  • Umpire Public

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

    llnl/Umpire’s past year of commit activity
    C++ 396 MIT 61 18 11 Updated Feb 5, 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 42 135 18 Updated Feb 5, 2026
  • conduit Public

    Simplified Data Exchange for HPC Simulations

    llnl/conduit’s past year of commit activity
    C++ 238 70 197 8 Updated Feb 4, 2026
  • axom Public

    CS infrastructure components for HPC applications

    llnl/axom’s past year of commit activity
    C++ 182 32 226 (2 issues need help) 17 Updated Feb 4, 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 625 BSD-3-Clause 163 29 14 Updated Feb 4, 2026
  • SAMRAI Public

    Structured Adaptive Mesh Refinement Application Infrastructure - a scalable C++ framework for block-structured AMR application development

    llnl/SAMRAI’s past year of commit activity
    C++ 238 85 52 5 Updated Feb 4, 2026
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 130 52 61 22 Updated Feb 4, 2026
  • spheral Public
    llnl/spheral’s past year of commit activity
    C++ 72 BSD-3-Clause 23 35 (1 issue needs help) 15 Updated Feb 4, 2026
  • smith Public

    Smith is a high order nonlinear thermomechanical simulation code

    llnl/smith’s past year of commit activity
    C++ 225 BSD-3-Clause 34 139 (1 issue needs help) 12 Updated Feb 4, 2026
  • RAJA Public

    RAJA Performance Portability Layer (C++)

    llnl/RAJA’s past year of commit activity
    C++ 564 111 207 (7 issues need help) 38 Updated Feb 4, 2026
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