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Lawrence Livermore National Laboratory (@LLNL)

LLNL

Stars
12,012
Global Org. Rank 1,988 (Top 0.7 %)
Registered about 11 years ago
Most used languages

C++
30.0 %

Python
29.0 %

C
16.3 %

Jupyter Notebook
5.2 %

JavaScript
2.7 %

Fortran
2.7 %

Java
2.5 %

Shell
1.7 %

Perl
1.2 %

CMake 1.0 %

Others 7.0 %
Location 🇺🇸 United States
Country Total Rank 833
Country Ranking

Chapel 4

Fortran
18

Modelica 19

C++
81

Prolog
114

Roff 142

Cuda 148

C
167

CMake 180

Julia
229

Perl
379

Vue 541

Scala
642

MATLAB
681

Shell
852

Jupyter Notebook
948

Python
972

Clojure
1,106

Lua
1,146

Objective-C
1,204

Dockerfile
1,833

Assembly
2,065

Vim Script
3,387

Java
4,273

R
5,165

JavaScript
6,478

C#
7,855

Ruby
8,659

zfp

Compressed numerical arrays that support high-speed random access

sundials

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

RAJA

RAJA Performance Portability Layer (C++)

Caliper

Caliper is an instrumentation and performance profiling library

Umpire

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

blt

A streamlined CMake build system foundation for developing HPC software

lbann

Livermore Big Artificial Neural Network Toolkit

SAMRAI

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

hiop

HPC solver for nonlinear optimization problems

conduit

Simplified Data Exchange for HPC Simulations

libROM

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

magpie

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.

HPC-Tutorials

Future home of hpc-tutorials.llnl.gov

units

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

maestrowf

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

merlin

Machine Learning for HPC Workflows

serac

Serac is a high order nonlinear thermomechanical simulation code

axom

CS infrastructure components for HPC applications

UnifyFS

UnifyFS: A file system for burst buffers

ior

Parallel filesystem I/O benchmark

umap

User-space Page Management

CHAI

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

cowc

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

scr

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.

LULESH

Livermore Unstructured Lagrangian Explicit Shock Hydrodynamics (LULESH)

msr-safe

Allows safer access to model specific registers (MSRs)

RAJAPerf

RAJA Performance Suite

FAST

Fusion models for Atomic and molecular STructures (FAST)

shroud

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

MacPatch

Software & Patch management for macOS

Aluminum

High-performance, GPU-aware communication library

mpiP

A light-weight MPI profiler.

yorick

yorick interpreted language

camp

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

fpzip

Lossless compressor of multidimensional floating-point arrays

GOTCHA

GOTCHA is a library for wrapping function calls in shared libraries

dataracebench

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

variorum

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

STAT

STAT - the Stack Trace Analysis Tool

lmt

Lustre Monitoring Tools

pyranda

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

spheral

Abmarl

Agent Based Modeling and Reinforcement Learning

pylibROM

Python interface for libROM, library for reduced order models

ExaCA

Cellular automata code for alloy nucleation and solidification written with Kokkos

lustre

LLNL's branches of Lustre

metall

Persistent memory allocator for data-centric analytics

libmsr

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

H5Z-ZFP

A registered ZFP compression plugin for HDF5

mpiBench

MPI benchmark to test and measure collective performance

cardioid

Cardiac simulation toolkit.

scraper

Python library for getting metadata from source code hosting tools

llnl.github.io

Public home for LLNL software catalog

mttime

Time Domain Moment Tensor Inversion in Python

quandary

Optimal control for open quantum systems

LaSDI

Jupyter Notebook

GridDyn

GridDyn is an open-source power transmission simulation software package

qball

Qball (also known as qb@ll) is a first-principles molecular dynamics code that is used to compute the electronic structure of atoms, molecules, solids, and liquids within the Density Functional Theory (DFT) formalism. It is a fork of the Qbox code by Francois Gygi.

mgmol

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.

Juqbox.jl

Juqbox.jl solves quantum optimal control problems in closed quantum systems

ExaConstit

A crystal plasticity FEM code that runs on the GPU

unum

Universal Number Library

fastcam

A toolkit for efficent computation of saliency maps for explainable AI attribution. This tool was developed at Lawrence Livermore National Laboratory.

Jupyter Notebook

DJINN

Deep jointly-informed neural networks -- as easy-to-use algorithm for designing/initializing neural nets

CxxPolyFit

A simple library for producing multidimensional polynomial fits for C++

cruise

User space POSIX-like file system in main memory

Kripke

Kripke is a simple, scalable, 3D Sn deterministic particle transport code

UEDGE

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

wrap

MPI wrapper generator, for writing PMPI tool libraries

acrotensor

A C++ library for computing large scale tensor contractions.

AMPE

Adaptive Mesh Phase-field Evolution

MACSio

A Multi-purpose, Application-Centric, Scalable I/O Proxy Application

zero-rk

Zero-order Reaction Kinetics (Zero-RK) is a software package that simulates chemically reacting systems in a computationally efficient manner.

ddcMD

A fully GPU-accelerated molecular dynamics program for the Martini force field

GPLaSDI

Quicksilver

A proxy app for the Monte Carlo Transport Code, Mercury. LLNL-CODE-684037

mpibind

Pragmatic, Productive, and Portable Affinity for HPC

FPChecker

A dynamic analysis tool to detect floating-point errors in HPC applications.

CallFlow

Visualization tool for analyzing call trees and graphs

FGPU

graphite

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

Jupyter Notebook

ygm

AMG

Algebraic multigrid benchmark

gLaSDI

Silo

Mesh and Field I/O Library and Scientific Database

CARE

CHAI and RAJA provide an excellent base on which to build portable codes. CARE expands that functionality, adding new features such as loop fusion capability and a portable interface for many numerical algorithms. It provides all the basics for anyone wanting to write portable code.

hatchet

Graph-indexed Pandas DataFrames for analyzing hierarchical performance data

burstfs

ravel

Ravel MPI trace visualization tool

mpiGraph

MPI benchmark to generate network bandwidth images

macc

Robust neural network surrogate for inertial confinement fusion

benchpark

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

Tribol

Modular interface physics library featuring state-of-the-art contact physics methods.

uberenv

Automates using spack to build and deploy software

havoqgt

muster

Massively Scalable Clustering

MemAxes

Interactive Visualization of Memory Access Samples

cram

Tool to run many small MPI jobs inside of one large MPI job.

MuyGPyS

A fast, pure python implementation of the MuyGPs Gaussian process realization and training algorithm.

mdtest

Used for testing the metadata performance of a file system