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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++ 823 168

  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 588 154

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 530 105

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 386 72

  5. Umpire Umpire Public

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

    C++ 374 54

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 274 62

Repositories

Showing 10 of 597 repositories
  • serac Public

    Serac is a high order nonlinear thermomechanical simulation code

    LLNL/serac’s past year of commit activity
    C++ 206 BSD-3-Clause 35 135 (1 issue needs help) 18 Updated Aug 12, 2025
  • mpibind Public

    Pragmatic, Productive, and Portable Affinity for HPC

    LLNL/mpibind’s past year of commit activity
    C 42 MIT 10 4 1 Updated Aug 12, 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 15 4 Updated Aug 12, 2025
  • 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++ 43 15 11 7 Updated Aug 12, 2025
  • SSAPy Public

    A Python package allowing for fast and precise orbital modeling.

    LLNL/SSAPy’s past year of commit activity
    Python 54 MIT 12 14 3 Updated Aug 12, 2025
  • 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 52 Apache-2.0 34 103 27 Updated Aug 12, 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 19 BSD-3-Clause 4 0 0 Updated Aug 11, 2025
  • inq Public

    This is a mirror. Please check our main website on gitlab.

    LLNL/inq’s past year of commit activity
    C++ 29 MPL-2.0 5 1 1 Updated Aug 11, 2025
  • UEDGE Public

    2D fluid simulation of plasma and neutrals in magnetic fusion devices

    LLNL/UEDGE’s past year of commit activity
    Fortran 40 LGPL-2.1 21 15 4 Updated Aug 11, 2025
  • CHAI Public

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

    LLNL/CHAI’s past year of commit activity
    C++ 108 BSD-3-Clause 23 22 14 Updated Aug 11, 2025