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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260303T182500
DTEND;TZID=Europe/Paris:20260303T185000
DTSTAMP:20260526T104500
CREATED:20260202T084610Z
LAST-MODIFIED:20260202T101246Z
UID:1983-1772562300-1772563800@ceec-coe.eu
SUMMARY:GALAEXI: An Architecture-Agnostic GPU-Acceleration Approach for Legacy Fortran Software
DESCRIPTION:Join Spencer Starr at the Society for Industrial and Applied Mathematics (SIAM)Processing for Scientific Computing (PP26)confrence in Berlin for his talk on “GALAEXI: An Architecture-Agnostic GPU-Acceleration Approach for Legacy Fortran Software” \n GALAEXI is a high-order discontinuous Galerkin spectral element method (DGSEM) computational fluid dynamics (CFD) code used for the study of compressible\, turbulent flows. It is the device-accelerated version of an existing Fortran-based\, CPU-only CFD framework. In this talk\, the chosen strategy for porting the Fortran-based compute kernels in GALAEXI to CUDA/HIP C++ is covered. Included are discussions on managing device memory\, retaining support for CPU computations\, strategies for writing and testing kernels and how to handle GPU-to-GPU MPI communication. Specific emphasis is placed on how the strategies covered can be abstracted in an architecture-agnostic way to allow the greatest degree of portability. The information presented will then be distilled into advice for those seeking to perform a similar porting effort.
URL:https://ceec-coe.eu/event/galaexi-an-architecture-agnostic-gpu-acceleration-approach-for-legacy-fortran-software/
CATEGORIES:Conference,mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260303T161000
DTEND;TZID=Europe/Paris:20260303T163000
DTSTAMP:20260526T104500
CREATED:20260223T100154Z
LAST-MODIFIED:20260223T100154Z
UID:1995-1772554200-1772555400@ceec-coe.eu
SUMMARY:FAIR-FLEXI - A Trustworthy CFD Code for Simulation and Training
DESCRIPTION:Engineering and science disciplines\, especially computational fluid dynamics (CFD) generate massive amounts of research data\, but they can only become knowledge if they can be shared and explored through data analytics and AI. This\, in turn\, requires a FAIR (findable\, accessible\, interoperable\, reusable) infrastructure. For complex research software\, however\, FAIR goes far beyond being open-source: reproducibility is hindered by hidden expertise such as user-defined parameters\, compile options\, hardware constraints\, and third-party dependencies.\nThis talk outlines the design\, implementation\, and lessons learned from FAIR-FLEXI. We discuss how comprehensive provenance capture\, portable environments\, and interactive notebooks turn CFD workflows into trustworthy\, reproducible research assets.
URL:https://ceec-coe.eu/event/fair-flexi-a-trustworthy-cfd-code-for-simulation-and-training/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260302T164500
DTEND;TZID=Europe/Paris:20260302T183000
DTSTAMP:20260526T104500
CREATED:20260223T095144Z
LAST-MODIFIED:20260223T095144Z
UID:1993-1772469900-1772476200@ceec-coe.eu
SUMMARY:CEEC at the 1st Stuttgart Research Software Day
DESCRIPTION:What is research software and why does it matter? These questions are the point of the first ever Research Software Day at the University of Stuttgart. Come learn about the CEEC codes FLEXI/GALAXI during the poster session and stay to learn about what else is being developed on campus.
URL:https://ceec-coe.eu/event/ceec-at-the-1st-stuttgart-research-software-day/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260128T120000
DTEND;TZID=Europe/Paris:20260128T123000
DTSTAMP:20260526T104500
CREATED:20260126T131141Z
LAST-MODIFIED:20260126T131312Z
UID:1978-1769601600-1769603400@ceec-coe.eu
SUMMARY:A Matrix-Free Algebraic hp-Multigrid Method for Computational Fluid Dynamics Applications
DESCRIPTION:After the talk on preconditioners in Osaka\, Japan at SCA/HPCAsia2026 \, stick with Niclas Jannson for his next talk on “A Matrix-Free Algebraic hp-Multigrid Method for Computational Fluid Dynamics Application.\, a best paper finalist. “
URL:https://ceec-coe.eu/event/a-matrix-free-algebraic-hp-multigrid-method-for-computational-fluid-dynamics-applications/
CATEGORIES:Conference,Paper Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260128T113000
DTEND;TZID=Europe/Paris:20260128T120000
DTSTAMP:20260526T104500
CREATED:20260126T125309Z
LAST-MODIFIED:20260126T125309Z
UID:1976-1769599800-1769601600@ceec-coe.eu
SUMMARY:Task-decomposed Overlapped Preconditioner for Sustained Strong Scalability on Accelerated Exascale Systems
DESCRIPTION:Join Niclas Jannson in Osaka\, Japan at SCA/HPCAsia2026 for his talk on “Task-decomposed Overlapped Preconditioner for Sustained Strong Scalability on Accelerated Exascale Systems.”
URL:https://ceec-coe.eu/event/task-decomposed-overlapped-preconditioner-for-sustained-strong-scalability-on-accelerated-exascale-systems/
CATEGORIES:Conference,Paper Talk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251009T155000
DTEND;TZID=Europe/Paris:20251009T161000
DTSTAMP:20260526T104500
CREATED:20251008T135146Z
LAST-MODIFIED:20251008T135146Z
UID:1831-1760025000-1760026200@ceec-coe.eu
SUMMARY:Mixed-Precision Strategies in Spectral Element Codes: Accuracy-Aware Approximation for Energy-Efficient Simulations
DESCRIPTION:If you’re at the Workshop on Approximate Computing in Numerical Linear Algebra in Paris this week\, chec out Roman Iakymchuk’s talk on mixed-precision strategies in spectral element codes on Thursday! \nAbstract: Approximate computing via mixed precision arithmetic offers a promising path to energy-efficient high-performance computing. However\, identifying where and how to apply reduced precision without compromising solution accuracy remains a key challenge in scientific simulations. In this talk\, we present a comprehensive methodology for enabling mixed-precision in spectral element codes using floating-point analysis tools\, roofline modeling\, and empirical verification. We apply our strategy to Nekbone and Neko—two fluid dynamics solvers—by combining reduced-precision iterative solvers with double-precision critical operations such as dot products and global communications. Our method is supported by Verificarlo’s Monte Carlo arithmetic and precision emulation\, which help detect numerically stable kernels for approximation. The resulting mixed-precision versions deliver up to 2.38x faster time-to-solution and 2.8× lower energy-to-solution\, while retaining double-precision-level accuracy. This work highlights a practical\, accuracy-aware approach to integrating approximation into large-scale legacy applications\, making them fit for future exascale platforms.
URL:https://ceec-coe.eu/event/mixed-precision-strategies-in-spectral-element-codes-accuracy-aware-approximation-for-energy-efficient-simulations/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251009T121000
DTEND;TZID=Europe/Paris:20251009T143000
DTSTAMP:20260526T104500
CREATED:20251008T140057Z
LAST-MODIFIED:20251008T140057Z
UID:1833-1760011800-1760020200@ceec-coe.eu
SUMMARY:Mixed-Precision and Energy-Efficient Computations
DESCRIPTION:If you’re at the Workshop on Approximate Computing in Numerical Linear Algebra in Paris this week\, don’t miss Yanxiang Chen’s  lunch poster talk on mixed precision and energy efficient computations! \nAbstract: High Performance Computing has traditionally focused on optimizing between memory usage\, arithmetic intensity\, parallelism\, and communication costs. However\, as simulations grow\, energy consumption has surged\, presenting significant sustainability challenges for large-scale computing infrastructures. Addressing these challenges requires innovative strategies that enhance energy efficiency without compromising computational accuracy or performance.\nWe present a systematic methodology for reducing the energy footprint of large-scale simulations via mixed-precision computing\, without compromising accuracy or performance. Our approach combines performance profiling with numerical sensitivity analysis to identify precision-insensitive code regions\, select promising candidates\, and gradually convert them to lower precision. Applied to representative high-performance computing kernels\, this strategy yields up to 40% speedup and 47% energy savings in an implicit Poisson solver\, and roughly 30% gains in both execution time and energy consumption in explicit solvers\, all while preserving double-precision level accuracy. These results demonstrate that our methodology provides a versatile and effective lever for enhancing the sustainability of HPC applications.
URL:https://ceec-coe.eu/event/mixed-precision-and-energy-efficient-computations-2/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250827T164000
DTEND;TZID=Europe/Paris:20250827T170000
DTSTAMP:20260526T104500
CREATED:20250826T091453Z
LAST-MODIFIED:20250826T091453Z
UID:1702-1756312800-1756314000@ceec-coe.eu
SUMMARY:Exploring Flow Fields at Scale: GPU-Accelerated Scientific Visualization for Exascale CFD
DESCRIPTION:Join our own Susanne Malheiros at the WHPC Europa Invited Session to hear about our latest work on Vistle. \nAbstract:\nThis talk presents the ongoing efforts to port Vistle – a software for creating immersive extended reality visualizations of scientific data – to the GPU by integrating the portable visualization toolkit Viskores. The approach is illustrated by sample computational fluid dynamics (CFD) visualizations of the light-house cases from the Center of Excellence in Exascale CFD (CEEC) project.
URL:https://ceec-coe.eu/event/exploring-flow-fields-at-scale-gpu-accelerated-scientific-visualization-for-exascale-cfd/
LOCATION:TUD Dresden University of Technology   Barkhausen-Bau (BAR)\, Georg-Schumann-Str. 13  \, Dresden\, 01069\, Germany
CATEGORIES:Conference,InvitedSession
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250827T162000
DTEND;TZID=Europe/Paris:20250827T164000
DTSTAMP:20260526T104500
CREATED:20250826T092550Z
LAST-MODIFIED:20250826T092550Z
UID:1706-1756311600-1756312800@ceec-coe.eu
SUMMARY:FLEXI: Scale-resolving simulations of compressible turbulence on modern HPC systems
DESCRIPTION:Join our own Anna Schwarz for the WHPC Europa invited session discussing our latest work preparing FLEXI for exascale and GPU-based systems. \nAbstract\nThe application of scale-resolving simulations such as LES and DNS remains challenging in numerous engineering applications due to the substantial computational demands and the limited available computational resources. It was thoroughly demonstrated in the last decade that high-order numerical methods show significant advantages in terms of computational cost required to achieve a given accuracy for DNS and LES and that they can be implemented efficiently on traditional CPU-based system architectures. However\, the improvements in performance for CPU-based systems has slowed down significantly over the last years. Consequently\, more specialised architectures\, such as GPUs\, have become increasingly popular in the last decade. These architectures still promise considerable performance improvements per generation and thus allow more complex flow cases to be tackled\, while also yielding better performance per invested amount of energy. However\, CPU codes cannot be easily run on GPU hardware\, since they exhibit a distinctly different architecture and require different programming languages. In this talk it is demonstrated how existing codebases can be translated efficiently to GPU hardware\, both in terms of implementation effort and computational performance. For this\, the unstructured DG code FLEXI~\cite{Krais2019\,Kempf2024} is utilized as an example. Finally\, it is shown that FLEXI is capable of tackling challenging large-scale problems with complex geometries on modern HPC systems.
URL:https://ceec-coe.eu/event/flexi-scale-resolving-simulations-of-compressible-turbulence-on-modern-hpc-systems/
LOCATION:TUD Dresden University of Technology   Barkhausen-Bau (BAR)\, Georg-Schumann-Str. 13  \, Dresden\, 01069\, Germany
CATEGORIES:Conference,InvitedSession
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250611T133000
DTEND;TZID=Europe/Paris:20250611T141500
DTSTAMP:20260526T104500
CREATED:20250610T124216Z
LAST-MODIFIED:20250610T124216Z
UID:1585-1749648600-1749651300@ceec-coe.eu
SUMMARY:RESEARCH POSTER PITCH with Yanxiang Chen
DESCRIPTION:After listening to Niclas Jansson present our project at the EuroHPC JU booth at 1pm\, strole over to Hall E to hear from our own Yanxiang Chen. \nIf you want the chance to ask questions about how we’re using mixed precision to drive energy-to-solution down without compromising accuracy\, make sure to stop by the research poster pitch ! \nYanxiang will present and answer questions about his poster Mixed-Precision and Energy-Efficient Computations.
URL:https://ceec-coe.eu/event/research-poster-pitch-with-yanxiang-chen/
CATEGORIES:Poster
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250611T130000
DTEND;TZID=Europe/Paris:20250611T132000
DTSTAMP:20260526T104500
CREATED:20250605T150437Z
LAST-MODIFIED:20250605T150437Z
UID:1580-1749646800-1749648000@ceec-coe.eu
SUMMARY:CEEC at ISC25
DESCRIPTION:Join our own Niclas Jansson at the Euro HPC JU booth for a presentation on our project and progress so far!
URL:https://ceec-coe.eu/event/ceec-at-isc25/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250610T150000
DTEND;TZID=Europe/Paris:20250612T160000
DTSTAMP:20260526T104500
CREATED:20250610T084324Z
LAST-MODIFIED:20250610T084324Z
UID:1583-1749567600-1749744000@ceec-coe.eu
SUMMARY:Mixed-Precision and Energy-Efficient Computations
DESCRIPTION:As supercomputers get bigger\, they become both more capable of solving complex problems and consuming enormous amounts of energy. To ensure their sustainability\, we must start focusing on reducing energy-to-solution at least as much as we focus on reducing time-to-solution. One of the ways CEEC is working on this is using mixed precision.  \nJoin Yanxiang Chen at ISC in the Foyer D-G – on the 2nd floor to learn about our latest work  reducing precision and energy consumption without compromising accuracy.
URL:https://ceec-coe.eu/event/mixed-precision-and-energy-efficient-computations/
CATEGORIES:Poster
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241215T000000
DTEND;TZID=Europe/Paris:20241215T235959
DTSTAMP:20260526T104500
CREATED:20241024T121556Z
LAST-MODIFIED:20241115T103716Z
UID:1143-1734220800-1734307199@ceec-coe.eu
SUMMARY:Call for Abstracts! High-fidelity CFD with application in ship hydrodynamics
DESCRIPTION:Submit your abstract to our invited session at Marine 2025!! \nThe session titled “High-fidelity CFD with application in ship hydrodynamics” is seeking submissions by December 15th\, 2024. Full details and guidelines for submission are available in  the proposal . \nYou can also check out the invited session’s page on the conference website.
URL:https://ceec-coe.eu/event/call-for-abstracts-high-fidelity-cfd-with-application-in-ship-hydrodyamics/
CATEGORIES:OpenCall
ATTACH;FMTTYPE=image/png:https://ceec-coe.eu/wp-content/uploads/2024/10/ceec_CallForAbstracts-with-numbers_v2-1-e1729843076883.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240909T120500
DTEND;TZID=Europe/Paris:20240909T122500
DTSTAMP:20260526T104500
CREATED:20240905T131604Z
LAST-MODIFIED:20240905T135557Z
UID:1077-1725883500-1725884700@ceec-coe.eu
SUMMARY:'Enabling mixed-precision with the help of tools: A Nekbone case study' at PPAM24
DESCRIPTION:If you’re going to PPAM24 September 8 – 11 in Ostrava\, Czechia\, make sure to check out the talk by Yanxiang Chen from our partner UMU on their progress implementing and optimizing mixed precision in Nekbone toward its integration in Neko and NekRS. The accompanying paper is also available as a pre-print online: https://arxiv.org/pdf/2405.11065
URL:https://ceec-coe.eu/event/enabling-mixed-precision-with-the-help-of-tools-a-nekbone-case-study-at-ppam24/
LOCATION:Ostrava\, Czechia\, Ostrava\, Czech Republic
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240903T181500
DTEND;TZID=Europe/Paris:20240903T190000
DTSTAMP:20260526T104500
CREATED:20240605T092248Z
LAST-MODIFIED:20240903T081225Z
UID:923-1725387300-1725390000@ceec-coe.eu
SUMMARY:Keynote Lecture at parCFD
DESCRIPTION:Join our own Niclas Jansson for his keynote lecture as an invited speaker at the 35th Parallel CFD International Conference 2024 in Bonn\, Germany.
URL:https://ceec-coe.eu/event/keynote-lecture-at-parcfd/
LOCATION:Universitätsclub Bonn e.V.\, Konviktstr.9\, Bonn\, 53113\, Germany
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240903T165000
DTEND;TZID=Europe/Paris:20240903T171000
DTSTAMP:20260526T104500
CREATED:20240903T082639Z
LAST-MODIFIED:20240903T082759Z
UID:1066-1725382200-1725383400@ceec-coe.eu
SUMMARY:A continuous benchmarking pipeline for performance engineering on different architectures for the waLBerla framework
DESCRIPTION:Come listen to our own Kajol Kulkarni presenting in mini-symposium 4 at parCFD on our work with benchmarking of waLBerla.
URL:https://ceec-coe.eu/event/a-continuous-benchmarking-pipeline-for-performance-engineering-on-different-architectures-for-the-walberla-framework/
LOCATION:Universitätsclub Bonn e.V.\, Konviktstr.9\, Bonn\, 53113\, Germany
CATEGORIES:mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240902T000000
DTEND;TZID=Europe/Paris:20240903T235959
DTSTAMP:20260526T104500
CREATED:20240605T090813Z
LAST-MODIFIED:20240903T081621Z
UID:921-1725235200-1725407999@ceec-coe.eu
SUMMARY:Mini-Symposium 4: Modernizing CFD: Exploring CI/CD for Improved Software Development Life Cycle
DESCRIPTION:Join CEEC at the 35th Parallel CFD International Conference 2024 this fall in Bonn\, Germany.  \nIn the Mini-Symposium 4: Modernizing CFD: Exploring CI/CD for Improved Software Development Life Cycle\, CEEC will be joined by sister European Centers of Excellence EXCELLERAT P2\, EOCOE3\, and HIDALGO 2 supported by the coordination activity CASTIEL 2. This symposium will focus on the role of Continuous Integration/Continuous Deployment (CI/CD) in guaranteeing CFD simulation applications’ stability\, reproducibility\, portability\, and performance.
URL:https://ceec-coe.eu/event/mini-symposium-4-modernizing-cfd-exploring-ci-cd-for-improved-software-development-life-cycle/
LOCATION:Universitätsclub Bonn e.V.\, Konviktstr.9\, Bonn\, 53113\, Germany
CATEGORIES:mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240716T173000
DTEND;TZID=Europe/Paris:20240716T180000
DTSTAMP:20260526T104500
CREATED:20240605T075254Z
LAST-MODIFIED:20240712T075620Z
UID:919-1721151000-1721152800@ceec-coe.eu
SUMMARY:Task-decomposed Overlapped Pressure Preconditioner for Sustained Strong Scalability on Accelerated Pre-exascale Systems
DESCRIPTION:Join CEEC in Kobe\, Japan at the 12th bi-annual ICCFD conference this July! Niclas Jansson will be presenting “Task-decomposed Overlapped Pressure Preconditioner for Sustained Strong Scalability on Accelerated Pre-exascale Systems” as part of the technical program.
URL:https://ceec-coe.eu/event/task-decomposed-overlapped-pressure-preconditioner-for-sustained-strong-scalability-on-accelerated-pre-exascale-systems/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240604T170000
DTEND;TZID=Europe/Paris:20240604T190000
DTSTAMP:20260526T104500
CREATED:20240501T181950Z
LAST-MODIFIED:20240501T182319Z
UID:851-1717520400-1717527600@ceec-coe.eu
SUMMARY:Entropy stable subcell shock capturing scheme for high-order discontinuous Galerkin methods on moving meshes
DESCRIPTION:If you’re not in the mini-symposium with Samual\, make sure to see the talk ‘Entropy stable subcell shock capturing scheme for high-order discontinuous Galerkin methods on moving meshes’ presented by Anna Schwarz in room 1.14.
URL:https://ceec-coe.eu/event/851/
LOCATION:Lisbon Congress Centre\, Praça das Indústrias 1\, Lisboa\, 1300-307\, Portugal
CATEGORIES:mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240604T170000
DTEND;TZID=Europe/Paris:20240604T190000
DTSTAMP:20260526T104500
CREATED:20240501T175610Z
LAST-MODIFIED:20240501T184728Z
UID:844-1717520400-1717527600@ceec-coe.eu
SUMMARY:A Fluid-Solid Coupled Micromechanical Simulation of Piping Erosion During the Installation of a Suction Bucket for the Foundation of an Offshore Wind Turbine
DESCRIPTION:If you’re not in the mini-symposium with Anna\, make sure to come see Samuel Kemmler’s talk ‘A Fluid-Solid Coupled Micromechanical Simulation of Piping Erosion During the Installation of a Suction Bucket for the Foundation of an Offshore Wind Turbine’. It is part of the mini-symposium 020 – Advancements in Offshore Wind Structures \, which will be held in Room 2.02.
URL:https://ceec-coe.eu/event/a-fluid-solid-coupled-micromechanical-simulation-of-piping-erosion-during-the-installation-of-a-suction-bucket-for-the-foundation-of-an-offshore-wind-turbine/
LOCATION:Lisbon Congress Centre\, Praça das Indústrias 1\, Lisboa\, 1300-307\, Portugal
CATEGORIES:mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240604T143000
DTEND;TZID=Europe/Paris:20240604T163000
DTSTAMP:20260526T104500
CREATED:20240430T120841Z
LAST-MODIFIED:20240501T184545Z
UID:839-1717511400-1717518600@ceec-coe.eu
SUMMARY:ECCOMAS MS088 - State-of-the-art Machine Learning Techniques For Computational Fluid Dynamics
DESCRIPTION:Come join our Anna Schwarz\, Jens Keim\, and Andrea Beck for the mini-simposium “State-of-the-art Machine Learning Techniques For Computational Fluid Dynamics” in room 2.01.\nMachine learning (ML) in scientific applications including computational fluid dynamics (CFD) is a growing field of research. However\, ML can be less stable and more prone to errors in CFD because of its complexity relative to e.g. game theory. Thus\, recent research has concentrated on reinforcement learning (RL) or physics-informed methods applied to CFD. Common examples for RL in CFD are flow control\, turbulence modeling and shock capturing. An additional and continuously growing field of research which alleviates the common problems of ML in CFD is physics-informed neural networks (PINNs). In general\, recently\, modified versions of classical PINNs have been proposed to push their limitations and make them more tailored to CFD. With these considerations in mind\, the objective of this minisymposium is to discuss the applicability\, predictive performance and limitations of state-of-the-art ML methods in CFD.
URL:https://ceec-coe.eu/event/eccomas-ms088-state-of-the-art-machine-learning-techniques-for-computational-fluid-dynamics/
LOCATION:Lisbon Congress Centre\, Praça das Indústrias 1\, Lisboa\, 1300-307\, Portugal
CATEGORIES:mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240604T103000
DTEND;TZID=Europe/Paris:20240604T123000
DTSTAMP:20260526T104500
CREATED:20240412T090425Z
LAST-MODIFIED:20240501T181344Z
UID:821-1717497000-1717504200@ceec-coe.eu
SUMMARY:Neko: A modern\, Portable\, and Scalable Framework for High-Fidelity Computational Fluid Dynamics
DESCRIPTION:If you’ll be at ECCOMAS 2024\, check out ‘Neko: A modern\, Portable\, and Scalable Framework for High-Fidelity Computational Fluid Dynamics’ presented by Niclas Jansson on the terrace.
URL:https://ceec-coe.eu/event/ceec-at-eccomas24/
LOCATION:Lisbon Congress Centre\, Praça das Indústrias 1\, Lisboa\, 1300-307\, Portugal
CATEGORIES:mini-symposium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240319T175000
DTEND;TZID=Europe/Paris:20240319T184500
DTSTAMP:20260526T104500
CREATED:20240306T150806Z
LAST-MODIFIED:20240306T153047Z
UID:700-1710870600-1710873900@ceec-coe.eu
SUMMARY:PLENARY: EuroHPC Users: How Are They Exploiting the Current EuroHPC Systems & Will Exploit Future Exascale Capabilities?\,
DESCRIPTION:If you’re attending the EuroHPC Summit Week this month in Antwerp\, make sure to join our Niclas Jansson for a PLENARY\, “EuroHPC Users: How Are They Exploiting the Current EuroHPC Systems & Will Exploit Future Exascale Capabilities?”\n17:15→18:45
URL:https://ceec-coe.eu/event/plenary-eurohpc-users-how-are-they-exploiting-the-current-eurohpc-systems-will-exploit-future-exascale-capabilities/
LOCATION:Flanders Meeting and Convention Centre\, A Room with a ZOO\, Koningin Astridplein 20-26\, Antwerp\, 2018\, Belgium
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20240319T141500
DTEND;TZID=Europe/Paris:20240319T151500
DTSTAMP:20260526T104500
CREATED:20240311T143207Z
LAST-MODIFIED:20240311T143207Z
UID:704-1710857700-1710861300@ceec-coe.eu
SUMMARY:CEEC at the Euro HPC Summit Poster Session
DESCRIPTION:If you’re interested in our progress over the last year or hoping to ask us questions about our plans for the future\, don’t miss the chance to talk with our own Niclas Jansson at the first poster session of the Euro HPC Summit on Tuesday\, March 19th!
URL:https://ceec-coe.eu/event/ceec-at-the-euro-hpc-summit-poster-session/
LOCATION:Flanders Meeting and Convention Centre\, A Room with a ZOO\, Koningin Astridplein 20-26\, Antwerp\, 2018\, Belgium
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20231116T003000
DTEND;TZID=Europe/Paris:20231116T013000
DTSTAMP:20260526T104500
CREATED:20231114T164318Z
LAST-MODIFIED:20231114T164922Z
UID:408-1700094600-1700098200@ceec-coe.eu
SUMMARY:Exploring the Ultimate Regime of Turbulent Rayleigh–Bénard Convection through Unprecedented Spectral-Element Simulations
DESCRIPTION:Don’t miss the official presentation of the work on NEKO that is nominated for the Gordon Bell Prize! \nOfficial Description: We detail our developments in the high-fidelity spectral-element code Neko that are essential for unprecedented large-scale direct numerical simulations of fully developed turbulence. Major innovations are modular multi-backend design enabling performance portability across a wide range of GPUs and CPUs\, a GPU-optimized preconditioner with task overlapping for the pressure-Poisson equation and in-situ data compression. We carry out initial runs of Rayleigh–Bénard Convection (RBC) at extreme scale on the LUMI and Leonardo supercomputers. We show how Neko is able to strongly scale to 16\,384 GPUs and obtain results that are not possible without careful consideration and optimization of the entire simulation workflow. These developments in Neko will help resolving the long-standing question regarding the ultimate regime in RBC.
URL:https://ceec-coe.eu/event/exploring-the-ultimate-regime-of-turbulent-rayleigh-benard-convection-through-unprecedented-spectral-element-simulations/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20231115T203000
DTEND;TZID=Europe/Paris:20231115T210000
DTSTAMP:20260526T104500
CREATED:20231114T155924Z
LAST-MODIFIED:20231114T155924Z
UID:406-1700080200-1700082000@ceec-coe.eu
SUMMARY:Neko – a European code development effort shortlisted for the 2023 ACM Gordon Bell Prize
DESCRIPTION:Come listen to our own Niclas Jansson talk about his work on NEKO\, which has been shortlisted for the 2023 ACM Gordon Bell Prize. We have the great fortune of being able to build on this work during the cEEC project. Learn more in his interview at the LUMI stand (booth 206)!
URL:https://ceec-coe.eu/event/neko-a-european-code-development-effort-shortlisted-for-the-2023-acm-gordon-bell-prize/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20230824T083000
DTEND;TZID=Europe/Paris:20230824T101000
DTSTAMP:20260526T104500
CREATED:20230913T143738Z
LAST-MODIFIED:20230913T143738Z
UID:369-1692865800-1692871800@ceec-coe.eu
SUMMARY:VPREC to analyze the precision appetites and numerical abnormalities of several proxy applications
DESCRIPTION:The energy consumption constraint for large-scale computing encourages scientists to revise the architecture design of hardware but also applications\, algorithms\, as well as the underlying working/ storage precision. We introduce an approach to address the issue of sustainable computations from the perspective of computer arithmetic tools. We employ the variable precision backend (VPREC) to identify parts of code that can benefit from smaller floating-point formats. Finally\, we show preliminary results on several proxy applications.
URL:https://ceec-coe.eu/event/vprec-to-analyze-the-precision-appetites-and-numerical-abnormalities-of-several-proxy-applications/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20230627T163000
DTEND;TZID=Europe/Paris:20230627T170000
DTSTAMP:20260526T104500
CREATED:20230912T153004Z
LAST-MODIFIED:20230912T153004Z
UID:361-1687883400-1687885200@ceec-coe.eu
SUMMARY:Sustainable and Reliable Computing with Tools: Analyzing Precision Appetites of CFD Applications with VerifiCarlo
DESCRIPTION:The energy consumption constraint for large-scale computing encourages scientists to revise the architecture design of hardware but also applications\, algorithms\, as well as the underlying working/ storage precision. The main aim is to make the computing cost sustainable and apply the lagom principle (”not too much\, not too little\, the right amount”)\, especially when it comes to working/ storage precision. Thus\, I will introduce an approach to address the issue of sustainable\, but still reliable\, computations from the perspective of computer arithmetic tools. Before lowering precision\, one needs to ensure that the simulation is numerically correct\, e.g. by relying on alternative floating-point models/ rounding to pinpoint numerical bugs and to estimate the accuracy. We employ VerifiCarlo and its variable precision backend to identify the parts of the code that benefit from smaller floating-point formats. Finally\, we show preliminary results on proxies of CFD applications.
URL:https://ceec-coe.eu/event/sustainable-and-reliable-computing-with-tools-analyzing-precision-appetites-of-cfd-applications-with-verificarlo/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20230627T160000
DTEND;TZID=Europe/Paris:20230627T180000
DTSTAMP:20260526T104500
CREATED:20230912T155326Z
LAST-MODIFIED:20230912T155459Z
UID:364-1687881600-1687888800@ceec-coe.eu
SUMMARY:MS4F - Cross-Cutting Aspects of Exploiting Exascale Platforms for High-Fidelity CFD in Turbulence Research
DESCRIPTION:With the arrival of exascale computing\, the theoretical computational performance has increased\, opening up for unprecedented simulation capabilities for Computational Fluid Dynamics (CFD) applications. While offering high theoretical peak performance and high memory bandwidth\, to efficiently exploit these systems\, complex programming models and significant programming investments are necessary. Furthermore\, most known pre and exascale systems currently planned or installed\, e.g. Frontier\, Leonardo and LUMI\, contain a large fraction of accelerators. Thus\, the challenge of porting and tuning scientific codes for these new platforms can no longer be ignored. However\, established CFD codes build on years of verification and validation of their underlying numerical methods\, potentially preventing a complete rewrite and rendering disruptive code changes a delicate task. Therefore\, porting established codes to accelerators poses several interdisciplinary challenges\, from formulating suitable numerical methods to applying sound software engineering practices to cope with disruptive code changes. The wide range of topics makes the exascale CFD transition relevant to a broader audience\, extending outside the traditional fluid dynamics community. This minisymposium aims at bringing together the CFD community as a whole\, from domain scientists to HPC experts\, to discuss current and future challenges towards enabling exascale fluid dynamics simulations on anticipated accelerated systems.
URL:https://ceec-coe.eu/event/ms4f-cross-cutting-aspects-of-exploiting-exascale-platforms-for-high-fidelity-cfd-in-turbulence-research/
CATEGORIES:Conference
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20230601T170000
DTEND;TZID=Europe/Paris:20230601T173000
DTSTAMP:20260526T104500
CREATED:20230531T133230Z
LAST-MODIFIED:20230531T133356Z
UID:277-1685638800-1685640600@ceec-coe.eu
SUMMARY:Neko: A Modern\, Portable\, and Scalable Framework for High-Fidelity Computational Fluid Dynamics
DESCRIPTION:Recent trends and advancements including more diverse and heterogeneous hardware in High-Performance Computing are challenging scientific software developers in their pursuit of good performance and efficient numerical methods. As a result\, the well-known maxim “software outlives hardware” may no longer necessarily hold true\, and researchers are today forced to re-factor their codes to leverage these powerful new heterogeneous systems. We present Neko – a portable framework for high-fidelity spectral element flow simulations. Unlike prior works\, Neko adopts a modern object-oriented Fortran 2008 approach\, allowing multi-tier abstractions of the solver stack and facilitating various hardware backends ranging from general-purpose processors\, accelerators down to exotic vector processors and Field-Programmable Gate Arrays (FPGAs) via Neko’s device abstraction layer. Focusing on the performance and accuracy of Neko\, we show the first direct numerical simulation (DNS) of a Flettner rotor submerged in a turbulent boundary layer\, observing excellent agreement of lift with experimental data. Using a mesh with five million spectral elements\, which turns into more than a billion unique degrees of freedom\, the simulation requires less than three days to complete on accelerated systems compared to weeks on traditional non-accelerated systems. Finally\, we present performance measurements on a wide range of accelerated computing platforms\, including the EuroHPC pre-exascale system LUMI\, where Neko achieves excellent parallel efficiency for a large DNS of turbulent fluid flow using up to 80% of the entire LUMI supercomputer.
URL:https://ceec-coe.eu/event/neko-a-modern-portable-and-scalable-framework-for-high-fidelity-computational-fluid-dynamics/
CATEGORIES:Conference
END:VEVENT
END:VCALENDAR