Our research projects vary in size, scope, and duration, but they share a focus on developing tools and methods that help LLNL deliver on its missions to the nation and, more broadly, advance the state of the art in scientific HPC. Projects are organized here in three ways: Active projects are those currently funded and regularly updated. Legacy projects are no longer actively developed. The A-Z option sorts all projects alphabetically, both active and legacy.

Active | A-Z | Legacy

RAJA Portability Suite

Enabling Performance Portable CPU and GPU HPC Applications

A Livermore-developed programming approach helps software to run on different platforms without major disruption to the source code.

Axom

Providing Shared Computer Science Infrastructure to HPC Applications

Supported by the Advanced Simulation and Computing program, Axom focuses on developing software infrastructure components that can be shared by HPC apps running on diverse platforms.

BUILD

Solving the Software Complexity Puzzle

BUILD tackles the complexities of HPC software integration with dependency compatibility models, binary analysis tools, efficient logic solvers, and configuration optimization techniques.

StarSapphire

Data-Driven Modeling and Analysis

StarSapphire is a collection of scientific data mining projects focusing on the analysis of data from scientific simulations, observations, and experiments.

ASC Proxy Apps

Prepare for Testing and Porting Applications

Proxy apps serve as specific targets for testing and simulation without the time, effort, and expertise that porting or changing most production codes would require.

Floating Point Compression

Lossless and Lossy Solutions

High-precision numerical data from computer simulations, observations, and experiments is often represented in floating point and can easily reach terabytes to petabytes of storage.

fpzip

Compressed Large Multidimensional Floating-Point Arrays

fpzip is a library for lossless or lossy compression of multidimensional floating-point arrays. It was primarily designed for lossless compression.

SAMRAI

Structured Adaptive Mesh Refinement Application Infrastructure

The SAMRAI library is the code base in CASC for exploring application, numerical, parallel computing, and software issues associated with structured adaptive mesh refinement.

Maestro Workflow Conductor

Developing Sustainable Computational Workflows

The Maestro Workflow Conductor is a lightweight, open-source Python tool that can launch multi-step software simulation workflows in a clear, concise, consistent, and repeatable manner.

TEIMS

Taurus Environmental Information Management System

TEIMS manages collaborative tasks, site characterization, risk assessment, decision support, compliance monitoring, and regulatory reporting for the Environmental Restoration Department.

ADAPD

Advanced Data Analytics for Proliferation Detection

ADAPD integrates expertise from DOE national labs to analyze growing global data streams and traditional intelligence data, enabling early warning of nuclear proliferation activities.

Alkemi

Improving Simulation Workflows with Machine Learning and Big Data

Simulation workflows for ALE methods often require a manual tuning process. We are developing novel predictive analytics for simulations and an infrastructure for integration of analytics.

FGPU

GPU Portability for FORTRAN Codes

FGPU provides code examples that port FORTRAN codes to run on IBM OpenPOWER platforms like LLNL's Sierra supercomputer.

HYPRE

Scalable Linear Solvers and Multigrid Methods

The hypre library's comprehensive suite of scalable parallel linear solvers makes large-scale scientific simulations possible by solving problems faster.

Umpire

Managing Heterogeneous Memory Resources

Umpire is a resource management library that allows the discovery, provision, and management of memory on next-generation architectures.

Parallel Software Development Tools

R&D for Exascale Architectures

Users need tools that address bottlenecks, work with programming models, provide automatic analysis, and overcome the complexities and changing demands of exascale architectures.

Unify

Distributed Burst Buffer File System

This open-source file system framework supports hierarchical HPC storage systems by utilizing node-local burst buffers.

PRUNERS

Providing Reproducibility for Uncovering Non-Deterministic Errors in Runs on Supercomputers

The PRUNERS Toolset offers four novel debugging and testing tools to assist programmers with detecting, remediating, and preventing errors in a coordinated manner.

Preparing Codes for Exascale

Advanced Architecture and Portability Specialists

LLNL's Advanced Simulation Computing program formed the Advanced Architecture and Portability Specialists team to help LLNL code teams identify and implement optimal porting strategies.

AIMS

Analytics and Informatics Management Systems

AIMS (Analytics and Informatics Management Systems) develops integrated cyberinfrastructure for big climate data discovery, analytics, simulations, and knowledge innovation.

BLT

Build, Link, and Test

BLT software supports HPC software development with built-in CMake macros for external libraries, code health checks, and unit testing.

MacPatch

Enterprise Management for macOS Systems

MacPatch provides LLNL with enterprise system management for desktop and laptop computers running Mac OS X.

CHAI

Copy Hiding Application Interface

A new software model helps move million-line codes to various hardware architectures by automating data movement in unique ways.

Apollo

Fast, Lightweight, Dynamic Tuning for Data-Dependent Code

Apollo, an auto-tuning extension of RAJA, improves performance portability in adaptive mesh refinement, multi-physics, and hydrodynamics codes via machine learning classifiers.