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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++ 850 176

  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 638 162

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 568 112

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 398 77

  5. Umpire Umpire Public

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

    C++ 398 63

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 285 64

Repositories

Showing 10 of 646 repositories
  • hubcast Public

    An event driven synchronization application for bridging GitHub and GitLab

    llnl/hubcast’s past year of commit activity
    Python 24 Apache-2.0 3 16 (1 issue needs help) 8 Updated Mar 3, 2026
  • RAJAPerf-Benchmark Public

    Scripts and data associated with RAJA Performance Suite benchmarking activities

    llnl/RAJAPerf-Benchmark’s past year of commit activity
    Python 1 BSD-3-Clause 0 0 0 Updated Mar 3, 2026
  • CHAI Public

    Copy-hiding array abstraction to automatically migrate data between memory spaces

    llnl/CHAI’s past year of commit activity
    C++ 111 BSD-3-Clause 23 16 15 Updated Mar 3, 2026
  • quandary Public

    Optimal control for open quantum systems

    llnl/quandary’s past year of commit activity
    C++ 57 MIT 15 7 4 Updated Mar 3, 2026
  • RAJA Public

    RAJA Performance Portability Layer (C++)

    llnl/RAJA’s past year of commit activity
    C++ 568 BSD-3-Clause 112 207 (7 issues need help) 38 Updated Mar 3, 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 36 139 (1 issue needs help) 15 Updated Mar 3, 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 2 Updated Mar 3, 2026
  • conduit Public

    Simplified Data Exchange for HPC Simulations

    llnl/conduit’s past year of commit activity
    C++ 240 70 194 7 Updated Mar 3, 2026
  • hatchet Public

    Graph-indexed Pandas DataFrames for analyzing hierarchical performance data

    llnl/hatchet’s past year of commit activity
    JavaScript 34 MIT 19 21 13 Updated Mar 3, 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 22 Updated Mar 3, 2026
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