Lawrence Livermore National Laboratory

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633 repositories

llnl.github.io
Public
Public home for LLNL software catalog
javascript jekyll website catalog portal gov
JavaScript
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MIT License
•58•61•14•0•Updated Jan 10, 2026Jan 10, 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.
hpc solver parallel-computing scientific-computing high-performance-computing sensitivity-analysis time-integration ode-solver dae-solver nonlinear-equation-solver
C
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BSD 3-Clause "New" or "Revised" License
•161•620•29•8•Updated Jan 10, 2026Jan 10, 2026
ERF
Public
Energy Research and Forecasting Model
C++
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Other
•57•1•0•0•Updated Jan 10, 2026Jan 10, 2026
zero-rk
Public
Zero-order Reaction Kinetics (Zero-RK) is a software package that simulates chemically reacting systems in a computationally efficient manner.
application chemistry cpp simulation
C++
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BSD 3-Clause "New" or "Revised" License
•23•43•1•0•Updated Jan 10, 2026Jan 10, 2026
CHAI
Public
Copy-hiding array abstraction to automatically migrate data between memory spaces
cpp gpu memory-management blt portability raja data-abstraction radiuss
C++
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BSD 3-Clause "New" or "Revised" License
•23•110•23•16•Updated Jan 10, 2026Jan 10, 2026
RAJAPerf
Public
RAJA Performance Suite
c-plus-plus performance cpp programming-model raja llnl proxy-application
Jupyter Notebook
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BSD 3-Clause "New" or "Revised" License
•51•128•61•25•Updated Jan 10, 2026Jan 10, 2026
spheral
Public
python simulations sph hydrodynamics astronomical-algorithms hydrodynamic-modeling llnl meshfree simulations-physics math-physics
C++
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BSD 3-Clause "New" or "Revised" License
•23•72•33•10•Updated Jan 10, 2026Jan 10, 2026
PYB11Generator
Public
PYB11Generator is a python based code generator that creates pybind11 code for binding C++ libraries as extensions in Python.
python cpp
Python
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BSD 3-Clause "New" or "Revised" License
•5•20•0•0•Updated Jan 10, 2026Jan 10, 2026
benchpark
Public
An open collaborative repository for reproducible specifications of HPC benchmarks and cross site benchmarking environments
benchmark performance hpc
Python
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Apache License 2.0
•42•63•132•28•Updated Jan 10, 2026Jan 10, 2026
conduit
Public
Simplified Data Exchange for HPC Simulations
python yaml json cpp fortran hpc scientific-computing hdf5 data-management llnl
C++
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Other
•69•235•188•5•Updated Jan 10, 2026Jan 10, 2026
mphys-surrogate-model
Public
This repository contains python scripts for training latent-space machine learning representations of warm rain droplet microphysics
Python
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Other
•0•0•0•0•Updated Jan 10, 2026Jan 10, 2026
ATS
Public
ATS - Automated Testing System - is an open-source, Python-based tool for automating the running of tests of an application across a broad range of high performance computers.
Python
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BSD 3-Clause "New" or "Revised" License
•6•9•5•1•Updated Jan 9, 2026Jan 9, 2026
axom
Public
CS infrastructure components for HPC applications
c-plus-plus cpp fortran hpc parallel-computing llnl radiuss app-infrastructure
C++
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BSD 3-Clause "New" or "Revised" License
•32•180•230•17•Updated Jan 9, 2026Jan 9, 2026
benchmarks
Public
Related to benchmarking activities for Advanced Simulation & Computing (ASC) Advanced Technology Systems
Creative Commons Attribution 4.0 International
•0•3•20•2•Updated Jan 9, 2026Jan 9, 2026
RAJA
Public
RAJA Performance Portability Layer (C++)
c-plus-plus cpp parallel-computing blt programming-model portability raja llnl radiuss
C++
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BSD 3-Clause "New" or "Revised" License
•110•560•208•39•Updated Jan 9, 2026Jan 9, 2026
Umpire
Public
An application-focused API for memory management on NUMA & GPU architectures
cpp hpc gpu memory-management blt portability radiuss
C++
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MIT License
•61•392•20•9•Updated Jan 9, 2026Jan 9, 2026
UETOOLS
Public
Jupyter Notebook
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GNU Lesser General Public License v2.1
•4•4•0•1•Updated Jan 9, 2026Jan 9, 2026
uberenv
Public
Automates using spack to build and deploy software
shell build-tools
Shell
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Other
•12•29•32•4•Updated Jan 9, 2026Jan 9, 2026
microbenchmarks
Public
C++
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Apache License 2.0
•0•0•0•0•Updated Jan 9, 2026Jan 9, 2026
ygm
Public
C++
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Other
•27•39•6•5•Updated Jan 9, 2026Jan 9, 2026
hiop
Public
HPC solver for nonlinear optimization problems
hpc optimization solver mpi cuda constrained-optimization nonlinear-programming-algorithms nonlinear-optimization nonlinear-programming interior-point-method
C++
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Other
•45•225•37•10•Updated Jan 9, 2026Jan 9, 2026
session-recorder
Public
Allows you to record a browser and voice, and produce a session. Inspired by Playwright's repo.
TypeScript
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MIT License
•0•0•0•0•Updated Jan 9, 2026Jan 9, 2026
smith
Public
Smith is a high order nonlinear thermomechanical simulation code
cpp simulation finite-elements proxy-application math-physics
C++
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BSD 3-Clause "New" or "Revised" License
•34•221•136•13•Updated Jan 9, 2026Jan 9, 2026
Caliper
Public
Caliper is an instrumentation and performance profiling library
performance cpp hpc instrumentation trace performance-analysis performance-monitoring caliper annotation-apis radiuss
C++
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BSD 3-Clause "New" or "Revised" License
•74•396•27•13•Updated Jan 9, 2026Jan 9, 2026
radiuss-docker
Public
Automated builds of Docker container bases for RADIUSS projects
Dockerfile
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MIT License
•0•2•4•1•Updated Jan 8, 2026Jan 8, 2026
UEDGE
Public
2D fluid simulation of plasma and neutrals in magnetic fusion devices
simulation math-physics
Fortran
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GNU Lesser General Public License v2.1
•22•44•16•5•Updated Jan 8, 2026Jan 8, 2026
ContinuationSolvers
Public
C++
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BSD 3-Clause "New" or "Revised" License
•1•0•1•0•Updated Jan 8, 2026Jan 8, 2026
pEyeON
Public
Repository for the EyeON file manifest tool
Python
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MIT License
•1•4•5•4•Updated Jan 8, 2026Jan 8, 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.
cpp simulation molecular-dynamics applications
C++
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Other
•15•43•11•8•Updated Jan 8, 2026Jan 8, 2026
SAMRAI
Public
Structured Adaptive Mesh Refinement Application Infrastructure - a scalable C++ framework for block-structured AMR application development
cpp hpc parallel-computing scientific-computing amr adaptive-mesh-refinement math-physics radiuss
C++
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Other
•85•237•52•5•Updated Jan 8, 2026Jan 8, 2026