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Lawrence Livermore National Laboratory

Login: LLNL

Company: null

Location: Livermore, CA, USA

email: open-source@llnl.gov

Blog: https://software.llnl.gov

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acrotensor: A C++ library for computing large scale tensor contractions.
Adagio: A power aware runtime
ADAPT: Adaptive Thresholds for Feature Extraction
adept-utils: LLNL Utility Libraries
AMG: Algebraic multigrid benchmark
AMPE: Adaptive Mesh Phase-field Evolution
ap: Absolute Path Command
AriesNCL: Aries Network Performance Counters Monitoring Library
AutomaDeD: Debugging Tool based on Statistical Analysis
avalaunch: Research prototype for fast launch of MPI jobs
backstroke: A tool for reversible computation in C++ based on incremental state saving.
BGQNCL: Blue Gene/Q Network Performance Counters Monitoring Library
blockbuster: Automatically exported from code.google.com/p/blockbuster
blt: A streamlined CMake build system foundation for developing HPC software
boxfish: Boxfish is a platform for visualizing performance data across the domains in which it was collected
burstfs: null
Caliper: Caliper is a flexible application introspection system
caliper-compiler: Compiler tools for Caliper
caliper-examples: Example codes, configurations, and datasets collected using Caliper
CallFlow: Visualization tool for Calling Context Trees
callpath: Library for representing callpaths consistently in distributed-memory performance tools.
CHAI: Copy-hiding array abstraction to automatically migrate data between memory spaces
coda-calibration-tool: Tool for calibrating body wave coda seismic models
COGENT: null
Collabmaps: An extension of the Datamaps package to show links between locations
CoMD-Chapel: CoMD implementation in Chapel
conduit: Simplified Data Exchange for HPC Simulations
coreFPUtest: This test is designed to perform a specific calculation that has been shown to exhibit rounding differences on certain "bad" AMD Opteron chips.
core_stack_merge: A script to merge IBM BlueGene lightweight core files into STAT prefix trees
cowc: Cars Overhead With Context related scripts described in Mundhenk et al. 2016 ECCV.
cram: Tool to run many small MPI jobs inside of one large MPI job.
cruise: User space POSIX-like file system in main memory
cryoH2vehicle: Using cryogenic H2 onboard a vehicle has the proven advantage to dramatically increase the density of the fluid as compared to room temperature. Under certain par/drive/fill scenarios, however, the pressure in vessel can reach its rated value and the hydrogen may start leaking through the pressure relief device. A FORTRAN code was written to simulate the variations of the thermodynamics state of the hydrogen inside the vessel (pressure, temperature, density, para/ortho) as a function of the vessel design (volume, rated pressure, aspect ratio, heat transfer ? including the influence of outside temperature) and the duty cycle the vehicle experiences, in terms of parking, driving, and refilling (assuming the vehicle always refills when it reaches a fixed amount, using a dispensing system of fixed outlet entropy or temperature). As a result, large parametric studies can be performed (influence of outside temperature, volume, rated pressure, fill pressure, dispensing entropy?) for various duty cycles, to be specified by the user; and typical states of charge and boil-off losses can be estimated. The code relies on the conservation of mass and energy, and includes real gas equations of state, para/ortho kinetics, temperature dependent heat capacity for the materials, and a model for tank design.
Curvallis: Curvallis is program for plotting, modifying, repairing, and fitting 1D data. (with some limited 2D support)
CxxPolyFit: A simple library for producing multidimensional polynomial fits for C++
damselfly: Damselfly Network Simulator
dataracebench: Data race benchmark suite
DragonView: Visual Analytics Tool for Dragonfly Network-based Supercomputers
dtcmp: Datatype Compare (DTCMP) Library for sorting and ranking distributed data using MPI
DysectAPI: The DysectAPI allows users to install debug probes that can gather various debug data under user-specified conditions?i.e., breakpoints, evaluation points, external conditions, etc. Probes can be linked in a tree to automate debug actions that a user would manually perform using a traditional debugger.
Elemental: Distributed-memory, arbitrary-precision, dense and sparse-direct linear algebra, conic optimization, and lattice reduction
FastGlobalFileStatus: Fast and scalable retrieval techniques for file global properties
fdtree: Recursive generator of directory trees
flume-plugins: A small collection of Flume Plugins and scripts.
glvis: Mirror of GLVis - a lightweight OpenGL tool for accurate and flexible finite element visualization. Please use the official repository, https://github.com/glvis/glvis, to create issues and pull requests.
googletest-mpi-listener: Header-only plugin for the Google Test framework defining listener(s) emitting sensible output when testing MPI-based, distributed-memory parallel software.
GOTCHA: GOTCHA is a library for wrapping function calls in shared libraries
GOTCHA-tracer: Tracer generater example using GOTCHA
GRAPE: Distributed Git Workflow Management Tool - The Git Replacement for the "Awesome" PARSEC Environment
graphator: Communication Graph Generator for Parallel Programs
graphlib: GraphLib
Gremlins: Flexible and extensible framework to emulate expected exascale architecture characteristics
GridDyn: GridDyn is an open-source power transmission simulation software package
GridKit: Experimental code for prototyping interfaces betwen numerical libraries and network models.
gtest-mpi-listener: Header-only plugin for the Google Test framework defining listener(s) emitting sensible output when testing MPI-based, distributed-memory parallel software.
H5Z-ZFP: A registered ZFP compression plugin for HDF5
hatchet: A Python library for analyzing hierarchical performance data
havoqgt: null
hiop: HPC solver for nonlinear optimization problems
hscs: HTTPS Web Server Reference Implementations
hypre: Parallel solvers for sparse linear systems featuring multigrid methods. This repository houses releases and test releases. Pull requests can still be addressed. LLNL users should use the main repository on MyBitbucket.
ibtopo: Perl scripts to process ibnetdiscover to extract network topology info
ior: Parallel filesystem I/O benchmark
irep: A tool for filling C/C++ or Fortran data structures from Lua input tables
iris: null
Jekyll-LLNL-Theme: LLNL Themed Jekyll Template
json-cwx: JSON-C with Extensions
Kripke: Kripke is a simple, scalable, 3D Sn deterministic particle transport code
KVTree: KVTree provides a C implementation of a Key-Value store based on perl hashes
LaunchMON: LaunchMON is a software infrastructure that enables HPC run-time tools to co-locate tool daemons with a parallel job. Its API allows a tool to identify all the remote processes of a job and to scalably launch daemons into the relevant nodes.
lbann: Livermore Big Artificial Neural Network Toolkit
ldapotp-java-api: provides OTP authentication services for java applications
ldapotp-jni-lib: A native interface wrapper for the standard LDAPOTP Client Authentication libraries
LH2Transfer: Liquid H2 (LH2) is a strong candidate for large scale, cost effective zero-emission transportation. One drawback of using LH2 are the losses along the supply chain, when transferring or using the molecule. This simulation code written in MATLAB enables to quantify the transfer and boil-off losses when using LH2, typically between a LH2 trailer and a stationary storage (e.g. at the refueling station). Different boundary conditions can be simulated for further optimization.
libmsr: Wrapper library for model-specific registers. APIs cover RAPL, performance counters, clocks and turbo.
libROM: null
libyogrt: Your One Get Remaining Time library
llnl.github.io: Public home for LLNL software catalog
llnl-hires-timers: C library containing high resolution timer implementation for several platforms.
lmt: Lustre Monitoring Tools
loupe: MPI profiler
LULESH: Livermore Unstructured Lagrangian Explicit Shock Hydrodynamics (LULESH)
lustre: LLNL's branches of Lustre
lustre-tools-llnl: Some lustre-related scripts and utilities in use at LLNL.
lwgrp: The Light-weight Group Library provides methods for MPI codes to quickly create and destroy process groups
MacPatch: Software & Patch management for Mac OS X
MacPatch-AutoPKG: null
MACSio: A Multi-purpose, Application-Centric, Scalable I/O Proxy Application
maestrowf: A tool and library for specifying and conducting general workflows.
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. and LSF.
MahonFitting: Python code to fit isochrons according to prescription by Mahon (1996)
mdtest: Used for testing the metadata performance of a file system
melodee: Modular Expression Language for Ordinary Differential Equation Editing
MemAxes: Interactive Visualization of Memory Access Samples
mfem: Mirror of MFEM - a lightweight, general, scalable C++ library for finite element methods. Please use the official repository, https://github.com/mfem/mfem, to create issues and pull requests. See also the MFEM website:
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.
mib: null
Mitos: Memory Sampling Tool using Linux perf_events
MountPointAttributes: Mount Point Attributes module
mpiBench: MPI benchmark to test and measure collective performance
mpiGraph: MPI benchmark to generate network bandwidth images
mpileaks: Tool to detect and report leaked MPI objects like MPI_Requests and MPI_Datatypes
mpiP: A light-weight MPI profiler.
mpi-tools: Tools for MPI programmers
msr-safe: Allows safer access to model specific registers (MSRs)
MultiMatTest: A demonstration code to test performance of basic operations for different representations of multi-material data structures.
muster: Massively Scalable Clustering
nami: Parallel Wavelet Compression
OMSClient: Tool to read network traffic data output by OpenSM Monitoring Service
Open-Facility-Viewer: Open Facility Viewer (OFV) is an application for 3D interactive walk-throughs of facilities
open-source-guidelines: Information about working with LLNL open source projects
paraDIS_lib: Visualization library to work with the paraDIS dislocation dynamics code
parelag: Parallel element agglomeration algebraic multigrid upscaling and solvers.
parelagmc: Parallel element agglomeration multilevel Monte Carlo library.
PENNANT: Unstructured mesh hydrodynamics for advanced architectures
perf-dump: Records per-process, per-timestep PAPI performance counter values. Saves them in an HDF5 file.
PIPS-SBB: Implementation of parallel branch-and-bound algorithm for stochastic (or block-angular) mixed-integer programs
pmgr_collective: null
PnMPI: Virtualization Layer for the MPI Profiling Interface
prorad: null
psuade: Problem Solving environment for Uncertainty Analysis and Design Exploration
pynamic: The Python Dynamic Benchmark
pyranda: A Python driven, Fortran powered Finite Difference solver for arbitrary hyperbolic PDE systems. This is the mini-app for the Miranda code.
python-lora: Python library for interacting with LLNL's Lorenz REST API
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.
Quicksilver: A proxy app for the Monte Carlo Transport Code, Mercury. LLNL-CODE-684037
RAJA: RAJA Performance Portability Layer
RAJAPerf: RAJA Performance Suite
RAJAProxies: RAJA versions of proxy applications
ravel: Ravel MPI trace visualization tool
refex-rolx: null
rhizome: null
rover: ROVER: an open source hybrid-parallel library for volume rendering and simulated radiography
rubik: Topology Aware Task Mapping Tool
saamge: Smoothed aggregation spectral element-based algebraic multigrid
SAMRAI: Structured Adaptive Mesh Refinement Application Infrastructure - a scalable C++ framework for block-structured AMR application development
SBLLmalloc: Memory allocation library, which automatically identifies the replicated data memory blocks and merges them into a single copy.
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.
scraper: Python library for getting metadata from source code hosting tools
selfsupervised: Deep Learning Self-Supervised source code related to Mundenk et al. CVPR 2018
shroud: A program to generate wrappers for language bindings.
simpool: Simpool is a set of simple pooled memory allocators
simul: MPI coordinated test of parallel filesystem system calls and library functions
smoothG: Mixed graph Laplacian upscaling and solvers
SoRa: SoRa uses genetic programming to find mathmatical representations from experimental data
spark-hdf5: A plugin to enable Apache Spark to read HDF5 files
spawnnet: Communication library for bootstrapping MPI
spl: A shim layer which adds the core interfaces required for OpenZFS.
STAT: STAT - the Stack Trace Analysis Tool
STKAddressConverter: Convert between various StorageTek addressing schemes
strawman: A many-core capable lightweight in situ visualization and analysis infrastructure for multi-physics HPC simulations
sundials: SUNDIALS is a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. This is a mirror of current releases, and development will move here eventually. Pull requests are not currently accepted, but bug reports and questions are welcome at sundials-users@llnl.gov. For more info visit https://computation.llnl.gov/projects/sundials
tango: Transport solver for coupling with turbulence
Task-Time-Tracker: A client side web app for tracking your time
Tizona: Tool for managing HPC workloads
Tool-Gear: Tool Gear is an infrastructure for quickly creating GUIs for tools.
TopoMS: Topological Analysis for Molecular Systems
TourRobotDance: Make your tape library robots dance for the delight of tour groups in your data center
tox: The tox (Tomcat, Oracle, and XML) Web archive is a foundation for development of HTTP-based applications using Tomcat and an Oracle RDBMS.
TraceR: Trace Replay and Network Simulation Framework
TreeScope: Visualization of Traffic on Fat-tree Network
umap: User-space DI-MMAP
Umpire: An application-focused API for memory management on modern HPC architectures
UMT: null
UnifyCR: UnifyCR: A file system for burst buffers
unum: Universal Number Library
UQ_combustion: null
USER-EPH: LAMMPS extension to capture electron-ion interaction
wrap: MPI wrapper generator, for writing PMPI tool libraries
WVL: null
zfp: Library for compressed numerical arrays that support high throughput read and write random access
zfs: ZFS on Linux - the official OpenZFS implementation for Linux.

This work is supported by the National Institutes of Health's National Center for Advancing Translational Sciences, Grant Number U24TR002306. This work is solely the responsibility of the creators and does not necessarily represent the official views of the National Institutes of Health.