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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++ 840 170

  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 611 159

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 552 109

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 393 74

  5. Umpire Umpire Public

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

    C++ 388 60

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 279 66

Repositories

Showing 10 of 628 repositories
  • 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 Dec 1, 2025
  • dapper Public

    Dependency Analysis Project - tools to discover implicit dependencies in source code and on systems

    LLNL/dapper’s past year of commit activity
    Python 18 MIT 4 20 3 Updated Dec 1, 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++ 1 232 0 0 Updated Dec 1, 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 20 MIT 12 17 5 Updated Dec 1, 2025
  • ExaCMech Public

    A GPU-friendly materials library with a focus on crystal plasticity methods

    LLNL/ExaCMech’s past year of commit activity
    C++ 22 BSD-3-Clause 1 5 0 Updated Dec 1, 2025
  • smith Public

    Smith is a high order nonlinear thermomechanical simulation code

    LLNL/smith’s past year of commit activity
    C++ 218 BSD-3-Clause 36 137 (1 issue needs help) 18 Updated Nov 30, 2025
  • 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 611 BSD-3-Clause 159 31 6 Updated Nov 30, 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 6 Updated Nov 30, 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 14 1 Updated Nov 30, 2025
  • dfanalyzer Public

    Layered data-flow analysis for HPC I/O.

    LLNL/dfanalyzer’s past year of commit activity
    Jupyter Notebook 3 MIT 2 3 3 Updated Nov 30, 2025
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