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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++ 834 170

  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 603 156

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 539 108

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 390 73

  5. Umpire Umpire Public

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

    C++ 384 59

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 275 66

Repositories

Showing 10 of 618 repositories
  • 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 603 BSD-3-Clause 156 31 5 Updated Oct 18, 2025
  • 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++ 42 BSD-3-Clause 23 1 0 Updated Oct 18, 2025
  • axom Public

    CS infrastructure components for HPC applications

    LLNL/axom’s past year of commit activity
    C++ 176 BSD-3-Clause 30 219 (2 issues need help) 21 Updated Oct 18, 2025
  • RAJAPerf Public

    RAJA Performance Suite

    LLNL/RAJAPerf’s past year of commit activity
    Jupyter Notebook 124 BSD-3-Clause 47 57 20 Updated Oct 18, 2025
  • ERF Public Forked from erf-model/ERF

    Energy Research and Forecasting Model

    LLNL/ERF’s past year of commit activity
    C++ 1 56 0 0 Updated Oct 18, 2025
  • PYB11Generator Public

    PYB11Generator is a python based code generator that creates pybind11 code for binding C++ libraries as extensions in Python.

    LLNL/PYB11Generator’s past year of commit activity
    Python 20 BSD-3-Clause 4 0 1 Updated Oct 17, 2025
  • spheral Public
    LLNL/spheral’s past year of commit activity
    C++ 69 BSD-3-Clause 22 29 (3 issues need help) 8 Updated Oct 17, 2025
  • paraview_mcp Public

    ParaView-MCP integrates multimodal LLMs with ParaView via Model Context Protocol, enabling natural language control of scientific visualizations. The agent observes the viewport for visual feedback, making complex visualization tool accessible to all users while providing intelligent automation for experts.

    LLNL/paraview_mcp’s past year of commit activity
    Python 17 BSD-3-Clause 6 0 0 Updated Oct 17, 2025
  • dftracer Public

    A multi-level dataflow tracer for capturing I/O calls from workflows.

    LLNL/dftracer’s past year of commit activity
    Jupyter Notebook 18 MIT 11 16 4 Updated Oct 17, 2025
  • camp Public

    Compiler agnostic metaprogramming library providing concepts, type operations and tuples for C++ and cuda

    LLNL/camp’s past year of commit activity
    C++ 91 19 29 (1 issue needs help) 9 Updated Oct 17, 2025
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