llnl

Compressed numerical arrays that support high-speed random access

Official development repository for SUNDIALS - a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. Pull requests are welcome for bug fixes and minor changes.

ROSE is an open-source compiler framework engineered by LLNL supporting program analysis and transformation at both the source and binary levels. ROSE can act as a compiler frontend for C, C++...

RAJA Performance Portability Layer (C++)

OGhidra bridges Large Language Models (LLMs) via Ollama with the Ghidra reverse engineering platform, enabling AI-driven binary analysis through natural language. Interact with Ghidra using...

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

Caliper is an instrumentation and performance profiling library

A streamlined CMake build system foundation for developing HPC software

comprehensive library of 3D transmission Computed Tomography (CT) algorithms with Python and C++ APIs, a PyQt GUI, and fully integrated with PyTorch

Future home of hpc-tutorials.llnl.gov

Simplified Data Exchange for HPC Simulations

Structured Adaptive Mesh Refinement Application Infrastructure - a scalable C++ framework for block-structured AMR application development

Smith is a high order nonlinear thermomechanical simulation code

Data-driven model reduction library with an emphasis on large scale parallelism and linear subspace methods

HPC solver for nonlinear optimization problems

Magpie contains a number of scripts for running Big Data software in HPC environments, including Hadoop and Spark. There is support for Lustre, Slurm, Moab, Torque. LSF, Flux, and more.

CS infrastructure components for HPC applications

A run-time C++ library for working with units of measurement and conversions between them and with string representations of units and measurements

A tool to easily orchestrate general computational workflows both locally and on supercomputers

Machine Learning for HPC Workflows

RAJA Performance Suite

Lossless compressor of multidimensional floating-point arrays

Livermore Unstructured Lagrangian Explicit Shock Hydrodynamics (LULESH)

UnifyFS: A file system for burst buffers

User-space Page Management

A light-weight MPI profiler.

Cars Overhead With Context related scripts described in Mundhenk et al. 2016 ECCV.

A repository for implementing graph network models based on atomic structures.

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

Scalable dynamic library and python loading in HPC environments

SCR caches checkpoint data in storage on the compute nodes of a Linux cluster to provide a fast, scalable checkpoint / restart capability for MPI codes.

Compiler agnostic metaprogramming library providing concepts, type operations and tuples for C++ and cuda

Parallel filesystem I/O benchmark

Allows safer access to model specific registers (MSRs)

Cellular automata code for alloy nucleation and solidification written with Kokkos

Shroud: generate Fortran and Python wrappers for C and C++ libraries

High-performance, GPU-aware communication library

Fusion models for Atomic and molecular STructures (FAST)

GOTCHA is a library for wrapping function calls in shared libraries

yorick interpreted language

Software & Patch management for macOS

Agent Based Modeling and Reinforcement Learning

Vendor-neutral library for exposing power and performance features across diverse architectures

Open-source implementation of Google's AI co-scientist for genenerating research hypotheses

Data race benchmark suite for evaluating OpenMP correctness tools aimed to detect data races.

An open collaborative repository for reproducible specifications of HPC benchmarks and cross site benchmarking environments

A Python package allowing for fast and precise orbital modeling.

Lustre Monitoring Tools

Time Domain Moment Tensor Inversion in Python

ParaView-MCP integrates multimodal LLMs with ParaView via Model Context Protocol, enabling natural language control of scientific visualizations. The agent observes the viewport for visual...

STAT - the Stack Trace Analysis Tool

A crystal plasticity FEM code that runs on the GPU

ParaDiS (Parallel Dislocation Simulator) is a massively parallel Discrete Dislocation Dynamics simulation tool to simulate motion and interaction of large ensembles of dislocations

A Python driven, Fortran powered Finite Difference solver for arbitrary hyperbolic PDE systems. This is the mini-app for the Miranda code.

Persistent memory allocator for data-centric analytics

Public home for LLNL software catalog

Cardiac simulation toolkit.

LLNL's branches of Lustre

GridDyn is an open-source power transmission simulation software package

Python interface for libROM, library for reduced order models

Pragmatic, Productive, and Portable Affinity for HPC

Optimal control for open quantum systems

Python library for getting metadata from source code hosting tools

Transformer-based model for learning authorship representations.

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

Programmable JIT Compilation and Optimization for C/C++ using LLVM

A registered ZFP compression plugin for HDF5

MPI benchmark to test and measure collective performance

Wrapper library for model-specific registers. APIs cover RAPL, performance counters, clocks and turbo.