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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++ 848 175

  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 631 164

  3. RAJA RAJA Public

    RAJA Performance Portability Layer (C++)

    C++ 566 112

  4. Caliper Caliper Public

    Caliper is an instrumentation and performance profiling library

    C++ 397 76

  5. Umpire Umpire Public

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

    C++ 396 62

  6. blt blt Public

    A streamlined CMake build system foundation for developing HPC software

    C++ 284 65

Repositories

Showing 10 of 637 repositories
  • conduit Public

    Simplified Data Exchange for HPC Simulations

    llnl/conduit’s past year of commit activity
    C++ 238 70 198 10 Updated Feb 13, 2026
  • SEAMsurrogates Public

    Shared Education in Artificial intelligence and Machine learning (SEAM) professional development course on "Surrogate Modeling and Design Optimization," as designed at LLNL.

    llnl/SEAMsurrogates’s past year of commit activity
    Python 5 1 8 0 Updated Feb 13, 2026
  • smith Public

    Smith is a high order nonlinear thermomechanical simulation code

    llnl/smith’s past year of commit activity
    C++ 225 BSD-3-Clause 36 139 (1 issue needs help) 15 Updated Feb 13, 2026
  • spheral Public
    llnl/spheral’s past year of commit activity
    C++ 72 BSD-3-Clause 23 35 (1 issue needs help) 13 Updated Feb 12, 2026
  • STAT Public

    STAT - the Stack Trace Analysis Tool

    llnl/STAT’s past year of commit activity
    C 67 26 7 1 Updated Feb 12, 2026
  • 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 631 BSD-3-Clause 164 30 15 Updated Feb 12, 2026
  • 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 66 Apache-2.0 43 131 21 Updated Feb 12, 2026
  • quandary Public

    Optimal control for open quantum systems

    llnl/quandary’s past year of commit activity
    C++ 57 MIT 15 7 2 Updated Feb 12, 2026
  • axom Public

    CS infrastructure components for HPC applications

    llnl/axom’s past year of commit activity
    C++ 182 33 226 (2 issues need help) 21 Updated Feb 12, 2026
  • dftracer-utils Public

    A collection of utilities for DFTracer

    llnl/dftracer-utils’s past year of commit activity
    C++ 1 MIT 2 4 1 Updated Feb 12, 2026
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