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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++ 832 170

  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 596 154

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 537 108

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 389 73

  5. Umpire Umpire Public

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

    C++ 383 57

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 275 65

Repositories

Showing 10 of 612 repositories
  • radiuss Public
    LLNL/radiuss’s past year of commit activity
    CSS 3 MIT 1 29 0 Updated Sep 29, 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 Sep 29, 2025
  • WarpX Public Forked from BLAST-WarpX/warpx

    WarpX is an advanced, time-based electromagnetic & electrostatic Particle-In-Cell code.

    LLNL/WarpX’s past year of commit activity
    C++ 1 224 0 0 Updated Sep 29, 2025
  • Silo Public

    Mesh and Field I/O Library and Scientific Database

    LLNL/Silo’s past year of commit activity
    C 33 26 126 1 Updated Sep 28, 2025
  • saltatlas Public
    LLNL/saltatlas’s past year of commit activity
    C++ 5 MIT 7 6 1 Updated Sep 28, 2025
  • axom Public

    CS infrastructure components for HPC applications

    LLNL/axom’s past year of commit activity
    C++ 175 BSD-3-Clause 30 215 (2 issues need help) 17 Updated Sep 28, 2025
  • llnl.github.io Public

    Public home for LLNL software catalog

    LLNL/llnl.github.io’s past year of commit activity
    JavaScript 60 MIT 58 15 0 Updated Sep 28, 2025
  • serac Public

    Serac is a high order nonlinear thermomechanical simulation code

    LLNL/serac’s past year of commit activity
    C++ 210 BSD-3-Clause 35 135 (1 issue needs help) 17 Updated Sep 28, 2025
  • scaleupROM Public

    Scalable Reduced Order Model with Discontinuous Galerkin Domain Decomposition

    LLNL/scaleupROM’s past year of commit activity
    C++ 11 MIT 6 2 5 Updated Sep 28, 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 5 Updated Sep 27, 2025
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