Analogue to digital converter

Alternating directions method

Akaike information criterion

Augmented Lagrange multiplier

Adaptive mesh refinement

Software framework for block-structured AMR

Argonne National Laboratory

Artificial Neural Network

Analysis of Variance

Application Programming Interface

Autoregressive moving average

Autoregressive moving average with exogenous input

Adaptive sparse quadrature

Advanced Terrestrial Simulator, previously Arctic Terrestrial Simulator

Boundary Condition

(UK government) Department for Business, Energy and Industrial Strategy

IBM Blue Gene / L supercomputer platform

Bayesian information criterion

Tokamak edge plasma modelling framework https://boutproject.github.io/

Balanced proper orthogonal decomposition

Opensource software licence

Computer-Aided Design, geometry including NURBS, usually “CAD database" implied

Canonical correlation analysis

Culham Centre for Fusion Energy

The French Alternative Energies and Atomic Energy Commission

Community Earth System Model

Computational fluid dynamics

Continuous integration

Command Line Interface

Convolutional neural network

LLNL continuum plasma simulation code

Computing patterns for multiscale HPC (project)

Compressive sampling matching pursuit

Framework for regional weather prediction in Europe

UQ and risk analysis package (Uni. Liverpool)

C plus plus programming language

Central Processing Unit

Create, Read, Update, Delete

Compressed sensing

Computational science and engineering

Constructive Solid Geometry

Computer science, mathematics, and physics

Chief Technology Officer

Compute Unified Device Architecture

Coupling with interpolation parallel interface (coupling library)

Continuous wavelet transform

Data Assimilation

Direct Acyclic Graph

UQ and optimization package (Sandia)

Discrete cosine transform

Digital Differential Analyser

Document-Driven Design

Differential equation

Discrete Empirical Interpolation Method

Department for Energy Security and Net Zero

Discrete Fourier Transform

Dynamic mode decomposition with control

Deep learning

Dynamic mode decomposition

Dynamic mode decomposition with control

Direct numerical simulation

Department of Energy

Digital Object Identifier

Data Parallel C++, Intel compiler for C++ with SYCL extension

Delayed Rejection Adaptive Metropolis

Domain-Specific Language

Discrete wavelet transform

Electrocorticography

Exascale Computing Project

Co-design centre for particle applications (part of ECP)

Extended DMD

Empirical interpolation method

name of neutral package

Expectation maximization

Empirical orthogonal functions

Eigensystem realization algorithm

Extremum-seeking control

name of software company https://www.esi-group.com/

Earth System Modeling Framework

EUROfusion Theory and Advanced Simulation Coordination

European Transport Simulator

European Union

Flux-Coordinate Independent (method)

name of edge code

Finite Element Method

name of PDE software project https://fenicsproject.org

Fast Fourier Transform

Fastest Fourier Transform in the West (library)

name of Multiscale physics code

General Atomics

Global Braginskii Solver (software)

Generalied Collisional Radiative (framework)

Global Drift-Ballooning

GNU debugger

General Data Protection Regulation

name of gyrokinetic code

Gaussian mixture model

Generalized Minimal Residual method

GNU’s Not Unix!

Gaussian Process

Generalised polynomial chaos (Xiu and Karniadakis https://doi.org/10.1016/S0021-9991(03)00092-5

Graphics Processing Unit

name of 3D turbulence code based on the flux-coordinate independent approach

Global sensitivity analysis

Graphical User Interface

HAmiltonian GuIding centre System

Hankel alternative view of Koopman

Hierarchical Data Format (version 5)

Hierarchical Data Structure

High Level Architecture

High Performance Computing

High Throughput Computing

International Business Machines Corp., but really known as IBM

Initial Condition

Independent component analysis

ICOsahedral Nonhydrostatic, the global numerical weather prediction model of the German weather service

Institute of Electrical and Electronics Engineers

Internet Engineering Taskforce

Integrated Modelling & Analysis Suite, promoted by ITER

Implicit-Explicit Methods

Input/Output

name of International Thermonuclear Experimental Reactor

Ion Temperature Gradient

Ion Tearing Mode

International Tokamak Physics Activity (ITER research programme)

Joint European Torus

Just In Time

JohnsonLindensfrauss

name of nonlinear MHD code

JavaScript Object Notation

Kullback Leibler

Karhunen-Loeve transform

Least absolute deviations

Large-scale Atomic/Molecular Massively Parallel Simulator

Los Alamos National Laboratory

Least Absolute Shrinkage and Selection Operator

Last Closed Flux Surface

Linear discriminant analysis

GNU Lesser General Public License

Latin Hypercube Sampling

Lawrence Livermore National Laboratory

Leave One Out

Linear quadratic estimator

Linear quadratic Gaussian controller

Linear quadratic regulator

Linear time invariant system

Maximium A Posteriori

Model-based systems engineering

Monte-Carlo (methods)

Markov chain Monte-Carlo

Model Coupling Toolkit

Molecular Dynamics

Mutually exclusive and collectively exhaustive

Multi-fidelity, Matrix-free

Multi-fidelity Monte-Carlo

Magnetohydrodynamics

Multi-Index Monte-Carlo

Multiple input, multiple output

Module Interface Specification

Massachusetts Institute of Technology

Opensource software licence ref. [6]

Machine Learning

Machine learning control

Multi-Level Monte-Carlo

Multi-Level Multi-Fidelity

Multiscale Modeling Framework

Method of Manufactured Solutions

Multiphysics Object Oriented Simulation Environment

Model Order Reduction

Missing point estimation

Message Passing Interface

Multi-resolution dynamic mode decomposition

Materials Science and Scientific Computing

MUltifrontal Massively Parallel Sparse direct Solver

Multiscale Coupling Library and Environment version 3

Numerical Algorithms Group

Nonlinear autoregressive model with exogenous inputs

Nucleus for European Modelling of the Ocean

Neutrals and Plasma Turbulence Numerics for the Exascale

Network Common Data Form

Nonlinear Schroedinger equation

Not ruled out yet

Software: SMARDDA/NUCODE for Neutral Beam Duct Calculations

NonUniform Rational B-Spline

Ocean Atmosphere Sea Ice Soil

Ocean Atmosphere Sea Ice Soil version 4

Ordinary Differential Equation

Observer Kalman filter identification

OLYMPUS Programming System

One Modeling Framework for Integrated Tasks

A Unified, Standards-Based Programming Model, https://software.intel.com/en-us/oneapi

API with associated libraries and preprocessors for performance-portable parallel computations on unstructured meshes https://github.com/OP-DSL/OP2-Common

Open Multi-Processing

Oxford University

Optimisation under uncertainty

Parallel Sparse matriX package

PopovBelevitchHautus test

Polynomial chaos

Principal components analysis

Polynomial chaos expansion

Principal component pursuit

Partial Differential Equation

Partial differential equation functional identification of nonlinear dynamics

Probability distribution function

Portable Extensible Toolkit for Scientific Computation https://www.mcs.anl.gov/petsc/

Plasma Facing Component

Proper Generalised Decomposition

Particle-In-Cell

Particle-In-Cell-Particle-In-Fourier

Proportional-integral-derivative control

Particle image velocimetry

Proper Orthogonal Decomposition

Parallel Object-Oriented Methods and Applications

SIAM Conference on Parallel Processing for Scientific Computing 2020

Performance-Portable Framework For Atomistic Simulations

git Pull Request

PSyclone is a code generation system that generates appropriate code for the PSyKAl code structure developed in the GungHo project. https://github.com/stfc/PSyclone

Framework for performance-portable parallel computations on unstructured meshes http://op2.github.com/PyOP2

Quality Assurance

Quality in Cloud and Grid, see QCG Pilot Job

Quasi-Monte-Carlo

Quantity of interest

Quality of Service

Risks, Assumptions, Issues, Dependencies

RAJA Performance Portability Layer (C++) https://github.com/LLNL/RAJA

Representational State Transfer (Resources as simple CRUD objects)

Restricted isometry property

Runge-Kutta-Fehlberg (aka Embedded Runge-Kutta), \(23\) denotes orders of scheme

Reproducing kernel Hilbert space

Root-mean-square

Random Number Generator

Recurrent neural network

Responsible Officer

Reduced-Order Model

Robust principal components analysis

Randomized SVD

Structured Adaptive Mesh Refinement Application Infrastructure

name of 1-D edge code

Software Development Life Cycle

Stochastic gradient descent

Society for Industrial and Applied Mathematics

Sparse identification of nonlinear dynamical systems

Single input, single output

Service-level Agreement

Software Language Extensions

System Level Engineering

name of Scalable Library for Eigenvalue Problem Computations

Sequential Least-Squares’ Thresholding

name of Ray-tracing algorithm, hybrid of SMART and DDA

name of Ray-tracing algorithm based on use of octree

SMARDDA modules with ITER interface

Stochastic Nonlinear Optimisation with Path-Augmented Constraints (software package)

Scrape-Off Layer

name of edge modelling code

name of edge modelling code combines B2 and EIRENE

Spatial Hybridisation

Smoothed Particle Hydrodynamics

Sparse representation for classification

Senior Responsible Owner role in UK government project delivery

Software Requirements Specification

Singular spectrum analysis

Scientific Software Development

Runtime system supporting heterogeneous multicore architectures http://starpu.gforge.inria.fr/doc/html/

name of vacuum field code

Short time Fourier transform

Scientific And Technical Information eXchange

Sequential thresholded least-squares

Scrape-off layer Transport ORiented Module

STRUctured Matrix PACKage

name of ODE package

Singular Value Decomposition

Support Vector Machine

C++-single-source heterogeneous programming for acceleration offload, https://www.khronos.org/sycl/

Systems Modeling Language

Toroidal Alfven Eigenmode

Test Driven Development

Time-lagged independent component analysis

TradeMark

name of set of edge modelling codes

name of Edge modelling software

Transactions on Mathematical Software

TORoidal Plasma Experiment

Object-oriented software framework for the solution of large-scale, complex multi-physics engineering and scientific problems https://trilinos.github.io/

TRIangular MEsh based Gyrokinetic code

Theory, Simulation, Validation and Verification, tasks of the E-TASC programme of Eurofusion

Technical University Munich

United Kingdom

United Kingdom Atomic Energy Authority

United Kingdom Research and Innovation, a non-departmental public body encompassing the research councils and Innovate UK

Unified Modelling Language

Uncertainty quantification

United States

United States of America

Unicode Transformation Format (Unicode denotes Universal Coded Character Set)

Universally Unique IDentifier is a 128-bit label used for information in computer systems

Variational approach of conformation dynamics

Vertical Dispacement Event

Verified Exascale Computing for Multiscale Applications

VECMA toolkit

name of Electromagnetic Particle-in-Cell code

variable stepsize, variable order solver of differential equation

Verification, Validation and Uncertainty Quantification

name of Particle-based gyrokinetic code

eXtensible Markup Language

eXtensible Modeling and Simulation Framework

ExCALIBUR Project NEPTUNE