Center of Excellence for Exascale CFD

Projektinformationen

CEEC

ID Finanzhilfevereinbarung: 101093393

DOI

10.3030/101093393

EK-Unterschriftsdatum 14 Dezember 2022

Startdatum 1 Januar 2023

Enddatum 31 Dezember 2026

Finanziert unter

• Digital, Industry and Space

Gesamtkosten

€ 7 812 711,25

EU-Beitrag

€ 3 906 355,38

Koordiniert durch

KUNGLIGA TEKNISKA HOEGSKOLAN
Sweden

CORDIS bietet Links zu öffentlichen Ergebnissen und Veröffentlichungen von HORIZONT-Projekten.

Links zu Ergebnissen und Veröffentlichungen von RP7-Projekten sowie Links zu einigen Typen spezifischer Ergebnisse wie Datensätzen und Software werden dynamisch von OpenAIRE abgerufen.

Leistungen

Documents, reports (22)

Implementation and scaling status update

Strong and weak scaling for LHC code on selected HPC architecture; Identification of improvement potential; Implementation of algorithmic and methodological acceleration techniques; Exchange of methods

Stable adjoints

Preliminary report on stable adjoint for high Reynolds numbers

CEEC visualization and data management support

Final report on the support of visualization and data management for the CEEC light-house cases with focus on efficient parallel data transfers to visualization hardware

Dynamic resource management at the exascale

Report on the dynamic load balancing support developed in this project and its evaluation for at least two CEEC applications

CEEC exascale lighthouse cases and their needs

At the end of Phase 1 Requirements, this report documents the established resolution requirements in all dimensions; established number of grid points / DOF; Estimates for memory consumption, bandwidth requirements, I/O needs; Established parallelization status, identified target HPC architecture and needs; Definition of current code status and steps towards exascale readinessFurthermore, opportunities for exploiting synergies between the development of the different codes during the project will be described

Exploration of strategies for leveraging quantum computers

Results on POCs for exploiting quantum computers for selected computational tasks in CFD applications

Concepts for validation, documentation, sustainability and dissemination

Concepts for self- and cross validation, change and simulation documentation and reproducibility are established

Final code generation results

Documentation of the code generation tools and the results obtained for selected CEEC applications

Communication and dissemination plan

This deliverable will include an analysis of CEECs main target audiences. It will accordingly define a communication and dissemination strategy per target audience, including objectives, suitable channels, key messages, and specific activities to be undertaken in the course of the project.

Improved immersed boundary methods

Performance comparison and demonstrator of immersed boundary representation

Definition of a common benchmark test case

Overview of code capabilities, equations, regimes, strength and weaknesses; Definition of one or more common benchmark problems and performance metrics

Machine-learning-based submodels for CFD

Report on the implementation of ML-based submodels for selected use cases

Initial code inputs for EPI and EPI Pilots

Pre-tested benchmark and other code including input decks, run instructions and result verification tools or documentation based on the different CEEC codes

Intermediate performance and energy efficiency evaluation results

This report documents the initial findings on performance and energy efficiency of the CEEC applications for relevant workloads and define KPIs for the further improvement of each of the applications

Implementation and scaling status update including pre- & post-processing

Identification of parts of the toolchain that are relevant for exascale; Performance improvements; Demonstration of scaling of the full tool chain (in collaboration with WP4); Concept for simulation data management established; code versions available for deployment

Report on Communication and Dissemination

This deliverable will report on the activities of Task 6.1 until M24 based on the initial plan outlined in D6.2.

CEEC workflow support

Report on the workflow support for the light-house cases

Approach to code generation

Documentation of the results obtained from an evaluation of applying code generation techniques to the different CEEC applications

Zero-copy GPU-based visualization workflow

Memory management in the visualization system is extended to enable workflows where consecutive GPU based steps are executed without transferring memory via CPU

Approach to workflows, ML-based submodeling, visualization, uncertainty quantification and dynamic resource management

Documentation of the requirements for the techniques developed and/or enhanced within this work package derived from the light-house cases requirements documented in D1.1

Interim report on scalable, mixed-precision, and fault-resilient algorithms

Documentation of the progress on scalable, mixed-precision, and fault-resilient algorithms

Analysis of the CEEC codes and underlying solvers: Requirements and strategies definition

Documentation of the CEEC codes with the focus on the underlying solvers. Definition of the requirements and potential strategies for enhancing scalability, numerical properties, energy efficiency, as well as execution time

Websites, patent fillings, videos etc. (1)

CEEC brand and website

By month 4, the CEEC brand will be developed, including a logo, templates, banners for social media and the website. The initial website will be set up and designed accordingly. The design process and website structure will be outlined in this deliverable.

Other (1)

CI and performance tracking infrastructure

Documentation of the deployed infrastructure

Veröffentlichungen

Peer reviewed articles (7)

A Fluid-Solid Coupled Micromechanical Simulation for the Analysis of Piping Erosion During the Seabed Installation of a Suction Bucket Foundation

Autoren: S. Kemmler, P. Cuéllar, C. Rettinger, H. Köstler
Veröffentlicht in: IOP Conference Series: Earth and Environmental Science, Ausgabe 1480, 2025, ISSN 1755-1307
Herausgeber: IOP Publishing
DOI: 10.1088/1755-1315/1480/1/012024

GALÆXI: Solving complex compressible flows with high-order discontinuous Galerkin methods on accelerator-based systems

Autoren: Marius Kurz, Daniel Kempf, Marcel P. Blind, Patrick Kopper, Philipp Offenhäuser, Anna Schwarz, Spencer Starr, Jens Keim, Andrea Beck
Veröffentlicht in: Computer Physics Communications, Ausgabe 306, 2024, ISSN 0010-4655
Herausgeber: Elsevier BV
DOI: 10.1016/J.CPC.2024.109388

A fully-resolved micromechanical simulation of piping erosion during a suction bucket installation

Autoren: Samuel Kemmler, Pablo Cuéllar, Antoni Artinov, Li-Hua Luu, Abbas Farhat, Pierre Philippe, Christoph Rettinger, Harald Köstler
Veröffentlicht in: Computers and Geotechnics, Ausgabe 186, 2025, ISSN 0266-352X
Herausgeber: Elsevier BV
DOI: 10.1016/J.COMPGEO.2025.107375

Enabling mixed-precision in spectral element codes

Autoren: Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Niclas Jansson, Roman Iakymchuk
Veröffentlicht in: Future Generation Computer Systems, Ausgabe 174, 2025, ISSN 0167-739X
Herausgeber: Elsevier BV
DOI: 10.1016/J.FUTURE.2025.107990

Design of Neko—A Scalable High‐Fidelity Simulation Framework With Extensive Accelerator Support

Autoren: Niclas Jansson, Martin Karp, Jacob Wahlgren, Stefano Markidis, Philipp Schlatter
Veröffentlicht in: Concurrency and Computation: Practice and Experience, Ausgabe 37, 2025, ISSN 1532-0626
Herausgeber: Wiley
DOI: 10.1002/CPE.8340

Efficiency and scalability of fully-resolved fluid-particle simulations on heterogeneous CPU-GPU architectures

Autoren: Samuel Kemmler, Christoph Rettinger, Ulrich Rüde, Pablo Cuéllar, Harald Köstler
Veröffentlicht in: The International Journal of High Performance Computing Applications, Ausgabe 39, 2025, ISSN 1094-3420
Herausgeber: SAGE Publications
DOI: 10.1177/10943420241313385

Wall-modeled large eddy simulation of a tandem wing configuration in transonic flow

Autoren: Marcel P. Blind, Tobias Gibis, Christoph Wenzel, Andrea Beck
Veröffentlicht in: Physics of Fluids, Ausgabe 36, 2024, ISSN 1070-6631
Herausgeber: AIP Publishing
DOI: 10.1063/5.0198271

Conference proceedings (4)

Neko: A Modern, Portable, and Scalable Framework for Extreme-Scale Computational Fluid Dynamics

Autoren: Niclas Jansson, Martin Karp, Stefano Markidis, Philipp Schlatter
Veröffentlicht in: 2024 IEEE International Conference on Cluster Computing Workshops (CLUSTER Workshops), 2024
Herausgeber: IEEE
DOI: 10.1109/CLUSTERWORKSHOPS61563.2024.00036

Exploring the Ultimate Regime of Turbulent Rayleigh–Bénard Convection Through Unprecedented Spectral-Element Simulations

Autoren: Niclas Jansson, Martin Karp, Adalberto Perez, Timofey Mukha, Yi Ju, Jiahui Liu, Szilárd Páll, Erwin Laure, Tino Weinkauf, Jörg Schumacher, Philipp Schlatter, and Stefano Markidis
Veröffentlicht in: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis (SC '23), 2023, ISBN 979-8-4007-0109-2
Herausgeber: Association for Computing Machinery
DOI: 10.1145/3581784.3627039

Enabling Mixed-Precision with the Help of Tools: A Nekbone Case Study

Autoren: Yanxiang Chen, Pablo de Oliveira Castro, Paolo Bientinesi, Roman Iakymchuk
Veröffentlicht in: Lecture Notes in Computer Science, Parallel Processing and Applied Mathematics, 2025
Herausgeber: Springer Nature Switzerland
DOI: 10.1007/978-3-031-85697-6_3

Exploiting long vectors with a CFD code: a co-design show case

Autoren: Marc Blancafort, Roger Ferrer, Guillaume Houzeaux, Marta Garcia-Gasulla, Filippo Mantovani
Veröffentlicht in: 2024 IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2024
Herausgeber: IEEE
DOI: 10.1109/IPDPS57955.2024.00047

Other (1)

Best Practice Guide -- Harvesting energy consumption on European HPC systems: Sharing Experience from the CEEC project

Autoren: Iakymchuk, Roman; Gedik, Gülçin; Kulkarni, Kajol; Chen, Yanxiang; Kempf, Daniel; Kemmler, Samuel; Papageorgiou, Dimitris; Konioris, Damaskinos; Kiebdaj, Sally; Corbalan, Julita; Köstler, Harald
Veröffentlicht in: 2024
DOI: 10.5281/ZENODO.13306638