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

PDES

Modeling Complex, Asynchronous Systems

PDES focuses on models that can accurately and effectively simulate California’s large-scale electric grid.

Math for Data Mining

Improved Matrix Factorization Algorithms

Newly developed mathematical techniques reveal important tools for data mining analysis.

Legacy

ExReDi

Extreme Resilient Discretization

The Extreme Resilient Discretization project (ExReDi) was established to address these challenges for algorithms common for fluid and plasma simulations.

Cluster Management Tools

Flexible Support for Our Linux Ecosystem

Large Linux data centers require flexible system management. At Livermore Computing, we are committed to supporting our Linux ecosystem at the high end of commodity computing.

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.

Legacy

GEFIE-QUAD

Laser Grating Simulation

This first-principles simulation method models the interaction of laser light with diffraction gratings, giving scientists a powerful tool to predict the performance of a laser compressor.

Legacy

Sphinx

Integrated Parallel Microbenchmark Suite

Sphinx, an integrated parallel microbenchmark suite, consists of a harness for running performance tests and extensive tests of MPI, Pthreads and OpenMP.

Legacy

SOAR

Visualization of Large Terrains Made Easy

SOAR (Stateless, One-pass Adaptive Refinement) is a view-dependent mesh refinement and rendering algorithm.

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.

Legacy

GOLLNLP

Improving Efficiency and Robustness of the U.S. Electrical Power Grid using HPC

Responding to a DOE grid optimization challenge, an LLNL-led team developed the mathematical, computational, and software components needed to solve problems of the real-world power grid.

MacPatch

Enterprise Management for macOS Systems

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

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.

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.

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.

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.

Legacy

Interconnection Networks

Topology-Aware Task Mapping

LLNL's interconnection networks projects improve the communication and overall performance of parallel applications using interconnect topology-aware task mapping.

Unify

Distributed Burst Buffer File System

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

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.

Umpire

Managing Heterogeneous Memory Resources

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

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.

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.

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.

Legacy

VPC

Variable Precision Computing

Researchers develop innovative data representations and algorithms to provide faster, more efficient ways to preserve information encoded in data.

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.