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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 624 163

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 563 111

  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
  • GRACE---GRinding-Automated-Classification-Engine Public

    Machine learning classifier for quality control of alloy sample grinding. Uses a YOLO based classifier on microscopy images to perform binary classification of grind quality, detecting surface scratches and separating pass or fail samples for an autonomous preparation workflows.

    llnl/GRACE---GRinding-Automated-Classification-Engine’s past year of commit activity
    Jupyter Notebook 0 AGPL-3.0 0 0 0 Updated Feb 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 65 Apache-2.0 42 136 22 Updated Feb 3, 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 624 BSD-3-Clause 163 29 13 Updated Feb 3, 2026
  • conduit Public

    Simplified Data Exchange for HPC Simulations

    llnl/conduit’s past year of commit activity
    C++ 237 70 196 9 Updated Feb 3, 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 3, 2026
  • hiop Public

    HPC solver for nonlinear optimization problems

    llnl/hiop’s past year of commit activity
    C++ 225 45 38 10 Updated Feb 3, 2026
  • benchmarks Public

    Related to benchmarking activities for Advanced Simulation & Computing (ASC) Advanced Technology Systems

    llnl/benchmarks’s past year of commit activity
    4 CC-BY-4.0 0 15 1 Updated Feb 3, 2026
  • blt Public

    A streamlined CMake build system foundation for developing HPC software

    llnl/blt’s past year of commit activity
    C++ 284 BSD-3-Clause 65 126 5 Updated Feb 3, 2026
  • RAJAPerf Public

    RAJA Performance Suite

    llnl/RAJAPerf’s past year of commit activity
    Jupyter Notebook 130 52 62 24 Updated Feb 3, 2026
  • CompilerGPT Public

    Driver tieing together compiler and AI models to achieve better code optimizations.

    llnl/CompilerGPT’s past year of commit activity
    C 13 BSD-3-Clause 0 19 0 Updated Feb 3, 2026
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