ADIOS
Provides a simple, flexible way for scientists to describe the data in their code that may need to be written, read, or processed
Data and visualization
The current CASS software portfolio focuses on freely available libraries and tools that support leading-edge computational science and engineering research on high-performance parallel computers. Most of the software has been developed with support from the U.S. Department of Energy Office of Advanced Scientific Computing Research, and the Software Technologies focus area of the Exascale Computing Project. Many products have Spack packages available and are part of the E4S distribution to facilitate installation.
AML
Building blocks for advanced memory management
Development tools
AMReX
Software framework for block structured AMR
Mathematical libraries
Ascent
A featherweight in situ visualization and analysis tool designed to be integrated with applications to reduce I/O overhead
Data and visualization
CAESAR
A unified framework of foundation and generative models for efficient compression of scientific data
Artificial intelligence
Caffeine
The CoArray Fortran Framework of Efficient Interfaces to Network Environments
Programming models and runtimes
ChatVis
Scientific visualization agent and benchmark
Data and visualization
Uses AI
Chimbuko
Performance analysis and visualization framework for scientific workflows
Development tools
Uses AI
chipStar
A tool for compiling and running HIP/CUDA on SPIR-V via OpenCL or Level Zero APIs
Programming models and runtimes
CodeScribe
Fortran to C++ code translation
Development tools
Uses AI
Dakota
Software for black-box, ensemble analysis of computationally costly simulations
Mathematical libraries
Darshan
A lightweight I/O characterization tool that transparently captures I/O access pattern information from HPC applications
Development tools
DeepHyper
A hyperparameter optimization library
Artificial intelligence
DIY
A block-parallel library for writing scalable parallel algorithms
Data and visualization
Dyninst
A toolkit for binary analysis, instrumentation, and code modification across a variety of CPU and GPU architectures
Development tools
E4S
The Extreme-Scale Scientific Software Stack
Software ecosystem and delivery
Empirical Roofline Tool
Automates generation of roofline model for architecture-specific performance analysis and optimization
Development tools
EXARL
Easily extendable architecture for reinforcement learning
Artificial intelligence
FASTEig
Software for solving large-scale eigenvalue problems
Mathematical libraries
Fiats
A deep learning library for use in high-performance computing applications in modern Fortran
Artificial intelligence
GASNet
A network-independent, high-performance communications middleware
Programming models and runtimes
HDF5
A parallel I/O library for high performance access to self-describing HDF5 datasets
Data and visualization
HPCToolkit
A toolkit that supports measurement, analysis, attribution, and inspection of application performance on CPU and GPU-accelerated architectures
Development tools
hypre
High-performance linear solvers library
Mathematical libraries
Julienne
A modern Fortran correctness-checking framework supporting expressive idioms for writing assertions and tests
Development tools
Kokkos
Performance portability programming model
Programming models and runtimes
Kokkos Kernels
Performance portable math kernels of the Kokkos Ecosystem.
Mathematical libraries
Legion
A task-based programming model and runtime
Programming models and runtimes
libEnsemble
A Python toolkit for coordinating asynchronous and dynamic ensembles of calculations
Mathematical libraries
LLVM Flang
A Fortran compiler
Programming models and runtimes
MFEM
High-performance finite element library
Mathematical libraries
MPICH
A high performance open-source implementation of the Message Passing Interface (MPI) standard
Programming models and runtimes
Oineus
A computational topology library
Data and visualization
Artificial intelligence
Open MPI
A high performance open-source implementation of the Message Passing Interface (MPI) standard
Programming models and runtimes
OpenACC Verification and Validation Test Suite
A test suite for OpenACC implementations
Programming models and runtimes
OpenMP Validation and Verification Test Suite
A test suite for OpenMP implementations
Programming models and runtimes
PAPI
A universal interface for hardware counters to monitor software performance
Development tools
ParaView
A tool for data analysis and visualization at scale
Data and visualization
ParaView Catalyst
A tool for in situ data analysis and visualization at scale
Data and visualization
PETSc/TAO
The Portable, Extensible Toolkit for Scientific Computation
Mathematical libraries
PnetCDF
An I/O library for high-performance parallel access to self-describing netCDF datasets
Data and visualization
PUMI Components
Provides support for unstructured mesh workflows including mesh adaption, hybrid particle-mesh calculations, and solution transfer
Mathematical libraries
PyTUQ
Library for tools and workflows for uncertainty quantification in computational models
Mathematical libraries
Spack
A flexible package manager that supports multiple versions, configurations, platforms, and compilers
Software ecosystem and delivery
StFT
Spatio-temporal fourier transformer for long term dynamics prediction
Artificial intelligence
STRUMPACK
Low-rank STRUctured Matrix PACKage for both dense and sparse matrices.
Mathematical libraries
SUNDIALS
A library of time integrators and nonlinear solvers for ordinary differential equations (ODEs), differential-algebraic equations (DAEs), and nonlinear algebr...
Mathematical libraries
SuperLU
Sparse direct solver and preconditioner based on supernodal sparse LU factorization
Mathematical libraries
TAU
A performance evaluation tool that supports GPUs from multiple vendors for HPC and AI applications
Development tools
UPC++
A C++ library that supports Partitioned Global Address Space (PGAS) programming
Programming models and runtimes
VisIt
An open source, interactive, scalable, visualization, animation and analysis tool.
Data and visualization
Viskores
A performance-portable visualization library leveraged by production tools such as ParaView and VisIt
Data and visualization
ytopt
Machine-learning-based autotuning and hyperparameter optimization framework
Development tools
Uses AI
zfp
An open-source library for compressed floating-point and integer arrays that support high-throughput random access read and write
Data and visualization