Discover LLNL/lmt Open Source project

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

668

sundials

515

RAJA

RAJA Performance Portability Layer (C++)

Caliper is an instrumentation and performance profiling library

458

Caliper

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

345

Umpire

A streamlined CMake build system foundation for developing HPC software

315

blt

Livermore Big Artificial Neural Network Toolkit

253

lbann

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

223

SAMRAI

HPC solver for nonlinear optimization problems

214

hiop

Simplified Data Exchange for HPC Simulations

210

conduit

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

207

libROM

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.

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magpie

Shell

193

HPC-Tutorials

Future home of hpc-tutorials.llnl.gov

188

units

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

140

maestrowf

Machine Learning for HPC Workflows

133

merlin

Serac is a high order nonlinear thermomechanical simulation code

121

serac

CS infrastructure components for HPC applications

120

axom

UnifyFS: A file system for burst buffers

110

UnifyFS

106

ior

Parallel filesystem I/O benchmark

105

umap

User-space Page Management

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

104

CHAI

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

104

cowc

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.

104

scr

LULESH

Livermore Unstructured Lagrangian Explicit Shock Hydrodynamics (LULESH)

Allows safer access to model specific registers (MSRs)

msr-safe

RAJAPerf

RAJA Performance Suite

Fusion models for Atomic and molecular STructures (FAST)

FAST

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

shroud

Software & Patch management for macOS

MacPatch

Objective-C

Aluminum

High-performance, GPU-aware communication library

A light-weight MPI profiler.

mpiP

yorick

yorick interpreted language

camp

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

Lossless compressor of multidimensional floating-point arrays

fpzip

GOTCHA is a library for wrapping function calls in shared libraries

GOTCHA

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 - the Stack Trace Analysis Tool

STAT

pyranda

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

spheral

Agent Based Modeling and Reinforcement Learning

Abmarl

Python interface for libROM, library for reduced order models

pylibROM

Cellular automata code for alloy nucleation and solidification written with Kokkos

ExaCA

LLNL's branches of Lustre

lustre

metall

Persistent memory allocator for data-centric analytics

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

libmsr

H5Z-ZFP

A registered ZFP compression plugin for HDF5

mpiBench

MPI benchmark to test and measure collective performance

cardioid

Cardiac simulation toolkit.

Python library for getting metadata from source code hosting tools

scraper

Public home for LLNL software catalog

llnl.github.io

JavaScript

mttime

Time Domain Moment Tensor Inversion in Python

Optimal control for open quantum systems

quandary

GridDyn is an open-source power transmission simulation software package

LaSDI

Jupyter Notebook

GridDyn

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.

qball

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.

mgmol

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

Juqbox.jl

Julia

ExaConstit

A crystal plasticity FEM code that runs on the GPU

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

unum

Universal Number Library

fastcam

Jupyter Notebook

DJINN

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

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

CxxPolyFit

User space POSIX-like file system in main memory

cruise

Kripke

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

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

UEDGE

MPI wrapper generator, for writing PMPI tool libraries

wrap

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

acrotensor

Adaptive Mesh Phase-field Evolution

AMPE

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

MACSio

zero-rk

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

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

ddcMD

GPLaSDI

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

Quicksilver

Pragmatic, Productive, and Portable Affinity for HPC

mpibind

FPChecker

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

Visualization tool for analyzing call trees and graphs

CallFlow

Vue

FGPU

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

graphite

Jupyter Notebook

ygm

Algebraic multigrid benchmark

AMG

gLaSDI

Mesh and Field I/O Library and Scientific Database

Silo

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.

Graph-indexed Pandas DataFrames for analyzing hierarchical performance data

hatchet

JavaScript

burstfs

ravel

Ravel MPI trace visualization tool

MPI benchmark to generate network bandwidth images

mpiGraph

Perl

macc

Robust neural network surrogate for inertial confinement fusion

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

benchpark

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

Tribol

Automates using spack to build and deploy software

uberenv

Shell

havoqgt

Massively Scalable Clustering

muster

Interactive Visualization of Memory Access Samples

MemAxes

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

cram

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

MuyGPyS

Used for testing the metadata performance of a file system

mdtest

100

SoRa

SoRa uses genetic programming to find mathematical representations from experimental data