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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++ 844 171

  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 617 159

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 560 110

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 396 74

  5. Umpire Umpire Public

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

    C++ 392 61

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 283 65

Repositories

Showing 10 of 633 repositories
  • thicket Public
    llnl/thicket’s past year of commit activity
    JavaScript 19 MIT 9 23 9 Updated Jan 3, 2026
  • llnl.github.io Public

    Public home for LLNL software catalog

    llnl/llnl.github.io’s past year of commit activity
    JavaScript 61 MIT 58 14 0 Updated Jan 3, 2026
  • axom Public

    CS infrastructure components for HPC applications

    llnl/axom’s past year of commit activity
    C++ 180 BSD-3-Clause 32 228 (2 issues need help) 19 Updated Jan 3, 2026
  • 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 Jan 3, 2026
  • conduit Public

    Simplified Data Exchange for HPC Simulations

    llnl/conduit’s past year of commit activity
    C++ 235 69 191 8 Updated Jan 3, 2026
  • pefile Public Forked from erocarrera/pefile

    pefile is a Python module to read and work with PE (Portable Executable) files

    llnl/pefile’s past year of commit activity
    Python 1 MIT 547 0 0 Updated Jan 2, 2026
  • hubcast Public

    An event driven synchronization application for bridging GitHub and GitLab

    llnl/hubcast’s past year of commit activity
    Python 21 Apache-2.0 3 15 (1 issue needs help) 10 Updated Jan 2, 2026
  • pefile-tests Public Forked from erocarrera/pefile-tests

    Test suite for pefile

    llnl/pefile-tests’s past year of commit activity
    Python 0 8 0 0 Updated Jan 2, 2026
  • 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 9 Updated Jan 2, 2026
  • Spindle Public

    Scalable dynamic library and python loading in HPC environments

    llnl/Spindle’s past year of commit activity
    C 103 31 18 6 Updated Jan 2, 2026
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