DiRAC-3 Operations 2023-26 - Leicester
Lead Research Organisation:
University of Leicester
Department Name: Physics and Astronomy
Abstract
The DiRAC High Performance Computing (HPC) facility provides cutting-edge computing services for the STFC theory communities in particle physics, astrophysics, cosmology and nuclear physics. Our complementary programmes of HPC skills training and innovation activities provide further support to the STFC theory research programme, as well as delivering significant benefits to wider society and the economy.
Physicists across the astrophysics, cosmology, nuclear and particle physics communities are focussed
on understanding how the Universe works at a very fundamental level. The distance scales
with which they work vary by more than 40 orders of magnitude from the smallest distances probed
by experiments at the Large Hadron Collider, deep within the atomic
nucleus, to the largest scale galaxy clusters observed in the Universe. The science challenges,
however, are linked through questions such as: How did the Universe begin and how is it evolving?
and What are the fundamental constituents and fabric of the Universe and how do they interact?
Progress requires a combination of new astronomical observations, new experimental data and new theoretical insights. Today, theoretical understanding comes increasingly from large-scale
computations that allow us to confront, in detail, the implications of our theoretical models with data from observations or experiments, or to interrogate the data to extract information that has
impact on our theories. Increasingly, theoretical calculations use artificial intelligence and machine learning algorithms to enhance their physical realism, improve their computational efficiency, or both.
These computations require the performance of the fastest computers available and push the boundaries of technology in this sector. They also provide an excellent
environment for training students in state-of-the-art techniques for code optimisation, data mining and visualisation; all valuable skills for their future careers.
The DiRAC HPC facility has been operating since 2009, providing computing resources for theoretical research
in all areas of particle physics, astrophysics, cosmology and nuclear physics supported by STFC. It is a highly productive
facility, supporting the STFC theory community in publishing over 270 papers annually in international, peer-reviewed journals.
In 2020, DiRAC received a £20m capital investment from the UKRI World Class Laboratories fund, allowing the deployment of DiRAC-3 Phase 1, the first major uplift in our
computational resources since DiRAC-2 in 2012 and providing a vital boost to the STFC theory programme for 2022/23.
The main purpose of the funding requested in this proposal is to support the continued operation of the DiRAC HPC facility for the period 2023-2026, including staff and power costs. These resources will enable DiRAC to continue sustainably as an internationally competitive computing facility for the STFC theory community, to train the next generation of leading computational scientists and to play a lead role in the UKRI Digital Research Infrastructure over the next decade.
Physicists across the astrophysics, cosmology, nuclear and particle physics communities are focussed
on understanding how the Universe works at a very fundamental level. The distance scales
with which they work vary by more than 40 orders of magnitude from the smallest distances probed
by experiments at the Large Hadron Collider, deep within the atomic
nucleus, to the largest scale galaxy clusters observed in the Universe. The science challenges,
however, are linked through questions such as: How did the Universe begin and how is it evolving?
and What are the fundamental constituents and fabric of the Universe and how do they interact?
Progress requires a combination of new astronomical observations, new experimental data and new theoretical insights. Today, theoretical understanding comes increasingly from large-scale
computations that allow us to confront, in detail, the implications of our theoretical models with data from observations or experiments, or to interrogate the data to extract information that has
impact on our theories. Increasingly, theoretical calculations use artificial intelligence and machine learning algorithms to enhance their physical realism, improve their computational efficiency, or both.
These computations require the performance of the fastest computers available and push the boundaries of technology in this sector. They also provide an excellent
environment for training students in state-of-the-art techniques for code optimisation, data mining and visualisation; all valuable skills for their future careers.
The DiRAC HPC facility has been operating since 2009, providing computing resources for theoretical research
in all areas of particle physics, astrophysics, cosmology and nuclear physics supported by STFC. It is a highly productive
facility, supporting the STFC theory community in publishing over 270 papers annually in international, peer-reviewed journals.
In 2020, DiRAC received a £20m capital investment from the UKRI World Class Laboratories fund, allowing the deployment of DiRAC-3 Phase 1, the first major uplift in our
computational resources since DiRAC-2 in 2012 and providing a vital boost to the STFC theory programme for 2022/23.
The main purpose of the funding requested in this proposal is to support the continued operation of the DiRAC HPC facility for the period 2023-2026, including staff and power costs. These resources will enable DiRAC to continue sustainably as an internationally competitive computing facility for the STFC theory community, to train the next generation of leading computational scientists and to play a lead role in the UKRI Digital Research Infrastructure over the next decade.
Organisations
People |
ORCID iD |
Mark Wilkinson (Principal Investigator) |
Publications
Altamura E
(2023)
EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies
in Monthly Notices of the Royal Astronomical Society
Altamura E
(2023)
Galaxy cluster rotation revealed in the MACSIS simulations with the kinetic Sunyaev-Zeldovich effect
in Monthly Notices of the Royal Astronomical Society
Alvarez M
(2023)
NNLO QCD corrections to event shapes at the LHC
in Journal of High Energy Physics
Appleby S
(2023)
The physical nature of circumgalactic medium absorbers in Simba
in Monthly Notices of the Royal Astronomical Society
Appleby S
(2023)
Mapping circumgalactic medium observations to theory using machine learning
in Monthly Notices of the Royal Astronomical Society
Astoul A
(2023)
Tidally Excited Inertial Waves in Stars and Planets: Exploring the Frequency-dependent and Averaged Dissipation with Nonlinear Simulations
in The Astrophysical Journal Letters
Barone A
(2023)
Approaches to inclusive semileptonic B(s)-meson decays from Lattice QCD
in Journal of High Energy Physics
Barrera M
(2023)
The MillenniumTNG Project: semi-analytic galaxy formation models on the past lightcone
in Monthly Notices of the Royal Astronomical Society
Batelaan M
(2023)
Moments and power corrections of longitudinal and transverse proton structure functions from lattice QCD
in Physical Review D
Batelaan M
(2023)
Feynman-Hellmann approach to transition matrix elements and quasidegenerate energy states
in Physical Review D
Belokurov V
(2023)
Energy wrinkles and phase-space folds of the last major merger
in Monthly Notices of the Royal Astronomical Society
Beraldo E Silva L
(2023)
Orbital Support and Evolution of Flat Profiles of Bars (Shoulders)
in The Astrophysical Journal
Betts J
(2023)
Machine learning and structure formation in modified gravity
in Monthly Notices of the Royal Astronomical Society
Blum T
(2023)
Update of Euclidean windows of the hadronic vacuum polarization
in Physical Review D
Borrow J
(2023)
The impact of stochastic modelling on the predictive power of galaxy formation simulations
in Monthly Notices of the Royal Astronomical Society
Bose S
(2023)
The progenitor galaxies of stellar haloes as 'failed' Milky Ways
in Monthly Notices of the Royal Astronomical Society
Bose S
(2023)
The MillenniumTNG Project: the large-scale clustering of galaxies
in Monthly Notices of the Royal Astronomical Society
Bowesman C
(2023)
A hyperfine-resolved spectroscopic model for vanadium monoxide ( 51 V 16 O)
in Molecular Physics
Brady S
(2023)
Solving the initial conditions problem for modified gravity theories
in Physical Review D
Braspenning J
(2023)
Sensitivity of non-radiative cloud-wind interactions to the hydrodynamic solver
in Monthly Notices of the Royal Astronomical Society
Brooks R
(2023)
The north-south asymmetry of the ALFALFA H i velocity width function
in Monthly Notices of the Royal Astronomical Society
Chaikin E
(2023)
A thermal-kinetic subgrid model for supernova feedback in simulations of galaxy formation
in Monthly Notices of the Royal Astronomical Society
Changeat Q
(2024)
Is the Atmosphere of the Ultra-hot Jupiter WASP-121 b Variable?
in The Astrophysical Journal Supplement Series
Changeat Q
(2023)
ESA-Ariel Data Challenge NeurIPS 2022: introduction to exo-atmospheric studies and presentation of the Atmospheric Big Challenge (ABC) Database
in RAS Techniques and Instruments
Chen C
(2023)
Can a binary star host three giant circumbinary planets?
in Monthly Notices of the Royal Astronomical Society
Cheng A
(2023)
Momentum transfer from the DART mission kinetic impact on asteroid Dimorphos
in Nature
Conaboy L
(2023)
Relative baryon-dark matter velocities in cosmological zoom simulations
in Monthly Notices of the Royal Astronomical Society
Cuesta-Lazaro C
(2023)
Galaxy clustering from the bottom up: a streaming model emulator I
in Monthly Notices of the Royal Astronomical Society
Curtis-Lake E
(2023)
The epoch of galaxy quenching
in Nature Astronomy
Czakon M
(2023)
A detailed investigation of W+c-jet at the LHC
in Journal of High Energy Physics
Czakon M
(2023)
NNLO B-fragmentation fits and their application to $$ t\overline{t} $$ production and decay at the LHC
in Journal of High Energy Physics
Czakon M
(2023)
Infrared-safe flavoured anti-kT jets
in Journal of High Energy Physics
Daley-Yates S
(2023)
Heating and cooling in stellar coronae: coronal rain on a young Sun
in Monthly Notices of the Royal Astronomical Society
Daly R
(2023)
Successful kinetic impact into an asteroid for planetary defence
in Nature
Deason A
(2023)
Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function
in Monthly Notices of the Royal Astronomical Society
Debattista V
(2023)
The Imprint of Clump Formation at High Redshift. II. The Chemistry of the Bulge
in The Astrophysical Journal
Delgado A
(2023)
The MillenniumTNG project: intrinsic alignments of galaxies and haloes
in Monthly Notices of the Royal Astronomical Society
De Beer S
(2023)
Resolving the physics of quasar Ly a nebulae (RePhyNe): I. Constraining quasar host halo masses through circumgalactic medium kinematics
in Monthly Notices of the Royal Astronomical Society
De Ceuster F
(2023)
Radiative transfer as a Bayesian linear regression problem
in Monthly Notices of the Royal Astronomical Society
Dimmock A
(2023)
Backstreaming ions at a high Mach number interplanetary shock Solar Orbiter measurements during the nominal mission phase
in Astronomy & Astrophysics
Downing E
(2023)
The many reasons that the rotation curves of low-mass galaxies can fail as tracers of their matter distributions
in Monthly Notices of the Royal Astronomical Society
Edwards B
(2023)
Exploring the Ability of Hubble Space Telescope WFC3 G141 to Uncover Trends in Populations of Exoplanet Atmospheres through a Homogeneous Transmission Survey of 70 Gaseous Planets
in The Astrophysical Journal Supplement Series
Edwards B
(2023)
Characterizing a World Within the Hot-Neptune Desert: Transit Observations of LTT 9779 b with the Hubble Space Telescope/WFC3
in The Astronomical Journal
Elbakyan V
(2023)
Episodic accretion and mergers during growth of massive protostars
in Monthly Notices of the Royal Astronomical Society
Elson E
(2023)
Measurements of the angular momentum-mass relations in the Simba simulation
in New Astronomy
Fenton A
(2024)
The 3D structure of disc-instability protoplanets
in Astronomy & Astrophysics
Ferlito F
(2023)
The MillenniumTNG Project: the impact of baryons and massive neutrinos on high-resolution weak gravitational lensing convergence maps
in Monthly Notices of the Royal Astronomical Society
Flynn J
(2023)
Exclusive semileptonic B s ? K l ? decays on the lattice
in Physical Review D
Gaikwad P
(2023)
Measuring the photoionization rate, neutral fraction, and mean free path of H i ionizing photons at 4.9 = z = 6.0 from a large sample of XShooter and ESI spectra
in Monthly Notices of the Royal Astronomical Society