54 open source projects by LLNL

RAJA Performance Portability Layer (C++)

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 welcome for bug fixes and minor changes.

Caliper is an instrumentation and performance profiling library

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

Livermore Big Artificial Neural Network Toolkit

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

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, and more.

A streamlined CMake build system foundation for developing HPC software

See https://github.com/hypre-space/hypre for the development repository and releases. This repo will eventually be removed.

Parallel filesystem I/O benchmark

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

HPC solver for nonlinear optimization problems

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

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

STAT - the Stack Trace Analysis Tool

Qball (also known as [email protected]) 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.

Topology Aware Task Mapping Tool

Visual Analytics Tool for Dragonfly Network-based Supercomputers

Compressed numerical arrays that support high-speed random access

Comb is a communication performance benchmarking tool.

SoRa uses genetic programming to find mathematical representations from experimental data

Lossless compressor of multidimensional floating-point arrays

Allows safer access to model specific registers (MSRs)

Universal Number Library

Model reduction library with an emphasis on large scale parallelism and linear subspace methods

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

Future home of hpc-tutorials.llnl.gov

Simplified Data Exchange for HPC Simulations

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

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

No description or website provided.

Tool for hardware-level feature control

Tool for calibrating body wave coda seismic models

User space POSIX-like file system in main memory

Adaptive Mesh Phase-field Evolution

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

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

Livermore Unstructured Lagrangian Explicit Shock Hydrodynamics (LULESH)

Massively Scalable Clustering

MPI benchmark to generate network bandwidth images

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

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

Lustre Monitoring Tools

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

User-space Page Management

Distributed-memory, arbitrary-precision, dense and sparse-direct linear algebra, conic optimization, and lattice reduction

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

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.

MPI benchmark to test and measure collective performance

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.