BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CEEC CoE - ECPv6.15.20//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:CEEC CoE X-ORIGINAL-URL:https://ceec-coe.eu X-WR-CALDESC:Events for CEEC CoE REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:Europe/Paris BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20220327T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20221030T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20230326T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20231029T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20240331T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20241027T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20250330T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20251026T010000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:20260329T010000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:20261025T010000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20250129T100000 DTEND;TZID=Europe/Paris:20250129T110000 DTSTAMP:20260415T061539 CREATED:20241121T105419Z LAST-MODIFIED:20250205T165517Z UID:1236-1738144800-1738148400@ceec-coe.eu SUMMARY:Vistle Part I: An Introduction to Immersive Visualizations of Large-Scale Scientific Data DESCRIPTION:Save the date for our next webinar! \nThis one-hour webinar introduces the visualization tool Vistle\, which is used to create augmented reality/virtual reality visualizations of large-scale scientific datasets. It presents Vistle’s remote rendering functionality and how Vistle is being ported to GPUs as part of the CEEC project to enable visualization for exascale datasets. \nAgenda\n\nIntroducing Vistle\n\nExamples of Immersive Visualizations\nThe Visualization Pipeline\n\nPreparing Vistle for the Exascale Era\n\nHybrid Remote Rendering\nAdding GPU support with VTK-m URL:https://ceec-coe.eu/event/vistle-part-i-an-introduction-to-immersive-visualizations-of-large-scale-scientific-data/ CATEGORIES:Webinar ATTACH;FMTTYPE=image/png:https://ceec-coe.eu/wp-content/uploads/2024/11/VistleEvent-Poster-1-e1736791803437.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20250122T140000 DTEND;TZID=Europe/Paris:20250122T142000 DTSTAMP:20260415T061539 CREATED:20250117T151553Z LAST-MODIFIED:20250120T085109Z UID:1339-1737554400-1737555600@ceec-coe.eu SUMMARY:GALEXI: Scale-resolving simulations of compressible turbulence on GPU-accelerated systems DESCRIPTION:Joine our Anna Schwarz for her talk “GALEXI: Scale-resolving simulations of compressible turbulence on GPU-accelerated systems”\, part of the workshop “Tackling Software Exascale Challenges: the Centres of Excellence in High-Performance Computing Perspective”. She will present GALEXI\, the GPU version of FLEXI\, and the grogress she’s made in CEEC preparing these codes for exascale CFD simulations. URL:https://ceec-coe.eu/event/tackling-software-exascale-challenges-the-centres-of-excellence-in-high-performance-computing-perspective/ LOCATION:Room 9 CATEGORIES:Workshop END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20250122T100000 DTEND;TZID=Europe/Paris:20250122T102000 DTSTAMP:20260415T061539 CREATED:20250117T160440Z LAST-MODIFIED:20250121T154826Z UID:1342-1737540000-1737541200@ceec-coe.eu SUMMARY:Exploring quantum computing in CoEs DESCRIPTION:Join our Pratibha Raghupati to learn about her experience exploring the potential of quantum in the context of work being done by the European HPC Centers of Excellence! \nPart of the workshop “Tackling software exascale challenges: the Centres of Excellence in High Performance Computing perspective”\, she will present the potential impact of quantum in the context of exascale CFD simulations we’re working on in CEEC. URL:https://ceec-coe.eu/event/exploring-quantum-computing-in-coes/ LOCATION:Room 9 END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20250120T123000 DTEND;TZID=Europe/Paris:20250120T125000 DTSTAMP:20260415T061539 CREATED:20250117T150621Z LAST-MODIFIED:20250117T161323Z UID:1336-1737376200-1737377400@ceec-coe.eu SUMMARY:Scientific Visualization for Exascale Simulations DESCRIPTION:Join our own Susanne Malheiros for her presentation “Scientific Visualization for Exascale Simulations” at HiPEAC25! \nPart of the workshop “From petascale to exascale and beyond: the Centres of Excellence challenge”\, Susanne will present her work on visualizing exascale CFD and multi-physics simulations like our Localized Erosion of Wind Turbine foundations lighthouse case. URL:https://ceec-coe.eu/event/from-petascale-to-exascale-and-beyond-the-centres-of-excellence-challenge/ LOCATION:Room 9 CATEGORIES:Workshop END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20241216T110000 DTEND;TZID=Europe/Paris:20241216T120000 DTSTAMP:20260415T061539 CREATED:20241115T145729Z LAST-MODIFIED:20241219T185747Z UID:1203-1734346800-1734350400@ceec-coe.eu SUMMARY:Programming complex workflows with PyCOMPSs DESCRIPTION:Programming large-scale systems poses several challenges to scientific application developers. Systems are growing in complexity\, and concurrency is not the only difficulty that programmers face. They also contend with the distribution of memory spaces\, complex architectures\, new storage technology\, etc. Task-based programming models have proven to be a good alternative to traditional programming models for HPC. PyCOMPSs is a pioneering approach to task-based programming in Python that enables codes to be executed in distributed computing platforms. In particular\, PyCOMPSs supports different types of tasks\, such as parallel simulations (MPI)\, artificial intelligence\, or data analytics. This webinar will give an overview of PyCOMPSs illustrated with examples in development at BSC that include CFD simulations with AI training or real-time visualization in the same workflow. URL:https://ceec-coe.eu/event/programming-complex-workflows-with-pycompss/ LOCATION:Online CATEGORIES:Webinar ATTACH;FMTTYPE=image/png:https://ceec-coe.eu/wp-content/uploads/2024/11/Event-Poster-e1731686061722.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20241215T000000 DTEND;TZID=Europe/Paris:20241215T235959 DTSTAMP:20260415T061539 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:20241113T150000 DTEND;TZID=Europe/Paris:20241113T160000 DTSTAMP:20260415T061539 CREATED:20241018T102838Z LAST-MODIFIED:20241115T103832Z UID:1120-1731510000-1731513600@ceec-coe.eu SUMMARY:Introduction to the DLB Library DESCRIPTION:The Dynamic Load Balancing library is a runtime library that offers different capabilities to HPC users. It consists of three different modules that work collaboratively and independently:\n• Lend When Idle (LeWI): Offers a transparent load balancing mechanism for hybrid applications (MPI + OpenMP)\n• Tracking Application Life Performance (TALP): Collects performance metrics at runtime\, offering a transparent and lightweight tool to measure the parallel and computational efficiency of your code. Metrics can be collected during runtime\, offering the possibility of dynamic adaptation.\n• Dynamic Resource Ownership Management: Provides a mechanism to change the amount of computational resources used by the different processes at runtime without stopping the application.\nIn this tutorial we will provide an overview of the DLB library and each one of its modules. For each module we will share its main features\, how to use it\, and some success stories. URL:https://ceec-coe.eu/event/introduction-to-the-dlb-library/ LOCATION:Online CATEGORIES:Webinar ATTACH;FMTTYPE=image/png:https://ceec-coe.eu/wp-content/uploads/2024/10/Poster.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20241030T110000 DTEND;TZID=Europe/Paris:20241030T120000 DTSTAMP:20260415T061539 CREATED:20241018T092318Z LAST-MODIFIED:20241022T131330Z UID:1129-1730286000-1730289600@ceec-coe.eu SUMMARY:FLEXI/GALÆXI: Open-Source Solver for Multiscale Flows DESCRIPTION:Join us for the 11th CASTIEL Code of the Month to learn about FLEXI/GALÆXI! \nIn the field of computational fluid dynamics (CFD)\, high-order methods have reached a certain level of maturity for the solution of unsteady multiscale problems\, of which turbulence is a prime example. For these types of problems\, high-order schemes have proven to be efficient alternatives to more traditional numerical schemes. Among the high-order discretization variants\, the discontinuous Galerkin method offers a collection of features which increased its popularity. In order to take full advantage of the potential benefits of these methods\, all steps in the simulation chain\, from pre- to post-processing\, must be designed and executed with high-order in mind.\nIn this talk\, we will present the open-source CFD frameworks FLEXI/GALÆXI\, which are continuously developed by the Numerics Research Group of Prof. Andrea Beck at the Institute of Aerodynamics and Gas Dynamics at the University of Stuttgart. Both solvers provide a high-order consistent simulation tool chain for solving the compressible Navier–Stokes equations in a highly efficient\, accurate and robust manner in a high performance computing setting either on CPU-based systems (FLEXI) or GPUaccelerated clusters (GALÆXI). The talk commences with a description of the numerical algorithms and implementation details\, accompanied by an outline of the features and capabilities of all parts of the framework. In addition to these technical details\, we also discuss the significant issues of code stability\, reproducibility and user-friendliness. The advantages gained by developing an open-source framework are addressed\, with a particular focus on usability for the open-source community. We conclude with application examples that demonstrate the wide range of use cases and the extensibility of FLEXI\, as well as an overview of current and future developments. \nRegistration:\nhttps://forms.office.com/e/P4Kr9xweRN URL:https://ceec-coe.eu/event/flexi-galaexi-open-source-solver-for-multiscale-flows/ CATEGORIES:Webinar ATTACH;FMTTYPE=image/png:https://ceec-coe.eu/wp-content/uploads/2024/10/CEEC-FLEXI-PublicCodeofTheMonth_graphs2-e1729602796118.png END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20240916 DTEND;VALUE=DATE:20240921 DTSTAMP:20260415T061539 CREATED:20240605T095852Z LAST-MODIFIED:20240605T100010Z UID:925-1726444800-1726876799@ceec-coe.eu SUMMARY:Introduction to Computational Fluid Dynamics DESCRIPTION:Join our Anna Schwarz as one of the instructors for the reoccuring “Introduction to Computational Fluid Dynamics” course organized by HLRS\, IAG (University of Stuttgart) and the\nInstitute of Software Methods for Product Virtualisation (DLR). URL:https://ceec-coe.eu/event/introduction-to-computational-fluid-dynamics/ LOCATION:HLRS University of Stuttgart\, Nobelstraße 19\, Stuttgart\, 70569\, Germany CATEGORIES:Training END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240909T120500 DTEND;TZID=Europe/Paris:20240909T122500 DTSTAMP:20260415T061539 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:20260415T061539 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:20260415T061539 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:20260415T061539 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:20260415T061539 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:20260415T061539 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:20260415T061539 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:20260415T061539 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:20260415T061539 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:20240516T140000 DTEND;TZID=Europe/Paris:20240516T180000 DTSTAMP:20260415T061539 CREATED:20240502T155910Z LAST-MODIFIED:20240503T165549Z UID:870-1715868000-1715882400@ceec-coe.eu SUMMARY:Workshop on Readiness of HPC Extreme-scale Applications DESCRIPTION:If you have a workshop pass\, please come hear about application development in the European HPC Centres of Excellence including CEEC! \n“this ISC workshop has been organised to provide a forum to consider common challenges\, ideas\, solutions\, and opportunities from the point of view of HPC applications developers preparing for exa-scale. ISC is the leading HPC conference in Europe\, gathering not only the main HPC vendors and providers but also developers and standardizing committees from programming models\, compilers\, and other system software. However\, we still need one of the key players in this ecosystem\, the HPC applications! With this workshop\, we seek to cover this gap and expand the ISC conference to HPC code developers.” URL:https://ceec-coe.eu/event/workshop-on-readiness-of-hpc-extreme-scale-applications/ LOCATION:Congress Center Hamburg\, Congressplatz 1\, Hamburg\, 20355\, Germany END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240515T160000 DTEND;TZID=Europe/Paris:20240515T162000 DTSTAMP:20260415T061539 CREATED:20240501T190638Z LAST-MODIFIED:20240503T165512Z UID:866-1715788800-1715790000@ceec-coe.eu SUMMARY:Neko: A Modern\, Portable\, and Scalable Framework for Extreme-Scale Computational Fluid Dynamics DESCRIPTION:Recent trends and advancements in 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 hard- ware 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 Neko’s performance and exascale readiness\, we outline the optimisation and algorithmic work necessary to ensure scalability and performance portability across a wide range of platforms. Finally\, we present performance measurements on a wide range of accelerated computing platforms\, including the EuroHPC pre-exascale system LUMI and Leonardo\, where Neko achieves excellent parallel efficiency for an extreme-scale direct numerical simulation (DNS) of turbulent thermal convection using up to 80% of the entire LUMI supercomputer. URL:https://ceec-coe.eu/event/neko-a-modern-portable-and-scalable-framework-for-extreme-scale-computational-fluid-dynamics/ LOCATION:Congress Center Hamburg\, Congressplatz 1\, Hamburg\, 20355\, Germany END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240515T141500 DTEND;TZID=Europe/Paris:20240515T144500 DTSTAMP:20260415T061539 CREATED:20240502T161307Z LAST-MODIFIED:20240503T165422Z UID:872-1715782500-1715784300@ceec-coe.eu SUMMARY:Center of Excellence in Exascale CFD at ISC High-Performance 2024 DESCRIPTION:In addition to the technical programming\, we will be presenting our last year of work at the EuroHPC Joint Undertaking booth J30 on Wednesday afternoon. Come hear about our latest work and then head over to Niclas’ talk on Neko later in the afternoon. URL:https://ceec-coe.eu/event/center-of-excellence-in-exascale-cfd-at-isc-high-performance-2024/ LOCATION:Congress Center Hamburg\, Congressplatz 1\, Hamburg\, 20355\, Germany END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240416T161500 DTEND;TZID=Europe/Paris:20240416T170000 DTSTAMP:20260415T061539 CREATED:20240412T075559Z LAST-MODIFIED:20240412T081257Z UID:816-1713284100-1713286800@ceec-coe.eu SUMMARY:CEEC at the 12th National Conference on Flow Phenomena DESCRIPTION:We will be presenting interem results from our work at the 12th National Conference on Flow Phenomena in Thessaloniki\, Greece. If you’re going to be around (and speak Greek) please come say hello! URL:https://ceec-coe.eu/event/ceec-at-the-12th-national-conference-on-flow-phenomena/ END:VEVENT BEGIN:VEVENT DTSTART;VALUE=DATE:20240410 DTEND;VALUE=DATE:20240413 DTSTAMP:20260415T061539 CREATED:20240214T122819Z LAST-MODIFIED:20240409T144415Z UID:529-1712707200-1712966399@ceec-coe.eu SUMMARY:CEEC at Direct and Large Eddy Simulation DESCRIPTION:The bi-annual Workshop series on Direct and Large Eddy Simulation (DLES) which started in 1994 focuses on modern techniques to simulate turbulent flows based on the partial or full resolution of the instantaneous turbulent flow structure. With the growing capacities of modern computers\, this approach has been gaining more and more interest over the years and will undoubtedly be further enhanced and applied. \nThe goal of the bi-annual DLES workshop series is to establish the state-of-the-art of DNS\, LES and related techniques for the computation and modelling of turbulent and transitional flows. \nHybrid modelling techniques\, e.g. based on a combination of LES and RANS approaches\, also fall into this category and are covered as well. This gathering of specialists in the field will be a unique opportunity for discussions about recent advances in the prediction\, understanding and control of turbulent flows in academic and industrial applications. \nThe CEEC contributions to this year’s program are: \n\nEvaluation of Dynamic Sigma Sub-Grid Scale Models\nMS Talk: Numerical Investigation of a Tandem Wing Configuration in Transonic Flow Regime\nMS Talk: GALEXI: Scale-resolving simulations of compressible turbulence on GPU-accelerated systems\n\n \nRegistration: \n\nLate registration closes April 12\, 2024\n\nThe Organizing Committee of DLES14: \n\nPhilipp Schlatter (FAU Erlangen-Nürnberg\, Germany)\nCristian Marchioli (University of Udine\, Italy)\nMaria Vittoria Salvetti (University of Pisa\, Italy)\nStefan Hickel (TU Delft\, The Netherlands) URL:https://ceec-coe.eu/event/direct-and-large-eddy-simulation/ LOCATION:Friedrich-Alexander-Universität (FAU)\, Erlangen-Nürnberg\, Germany\, Schloßplatz 4\, Erlangen\, Bayern\, 91054\, Germany END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240325T090000 DTEND;TZID=Europe/Paris:20240325T160000 DTSTAMP:20260415T061539 CREATED:20240305T151107Z LAST-MODIFIED:20240311T113428Z UID:680-1711357200-1711382400@ceec-coe.eu SUMMARY:Second CEEC Community Workshop - Maximizing CFD Code Efficiency: A workshop on Continuous Integration\, Benchmarking\, and Testing in Cluster Environments DESCRIPTION:CI/CD has revolutionized software development practices by offering streamlined workflows that enhance productivity\, reliability\, and agility in delivering software products. When it comes to massive codes designed for performing physics simulations\, cluster computing environments represent a cornerstone of modern computational infrastructure\, offering unparalleled capabilities for parallel processing and data-intensive applications. Continuous integration (CI)\, benchmarking\, and testing play pivotal roles in optimizing the performance of applications deployed in cluster settings. This workshop delves into the adaptation of CI/CD methodologies to HPC environments. This workshop aims to equip participants with the knowledge and skills to leverage CI/CD practices effectively on a test cluster and then visualise the results. By the end of the workshop\, participants will be equipped with the expertise to implement CI/CD workflows effectively on supercomputer machines. \n\nParticipation is free! \nAttendees may bring their own code (git repo) or use a test code provided by the organizers. \nAttendance is also hybrid\, either on-site or online.\n\n \n Register Here!\n \nAgenda\n\n9:00 – 9:15: Opening\n9:15 – 10:45: General introduction to CI/CD and cluster access\n10:45 – 11:00: break\n11:00 – 12:15 – setting up a simple test repository \n12:15 – 13:00: lunch break\n13:00 – 16:00:  hands-on session on CB using test cluster and Visualization  URL:https://ceec-coe.eu/event/second-ceec-community-workshopmaximizing-cfd-code-efficiency/ LOCATION:Friedrich-Alexander-Universität (FAU)\, Erlangen-Nürnberg\, Germany\, Schloßplatz 4\, Erlangen\, Bayern\, 91054\, Germany CATEGORIES:Workshop ATTACH;FMTTYPE=image/png:https://ceec-coe.eu/wp-content/uploads/2024/03/PosterCEEC_2nd-Workshop.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20240319T175000 DTEND;TZID=Europe/Paris:20240319T184500 DTSTAMP:20260415T061539 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:20260415T061539 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:20240131T110000 DTEND;TZID=Europe/Paris:20240131T120000 DTSTAMP:20260415T061539 CREATED:20240126T164647Z LAST-MODIFIED:20240126T164647Z UID:464-1706698800-1706702400@ceec-coe.eu SUMMARY:Code of the Month vol.6 “Neko by CEEC” — PUBLIC event 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 hard- ware 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 Neko’s performance and exascale readiness\, we outline the optimisation and algorithmic work necessary to ensure scalability and performance portability across a wide range of platforms. Finally\, we present performance measurements on a wide range of accelerated computing platforms\, including the EuroHPC pre-exascale systems LUMI and Leonardo\, where Neko achieves excellent parallel efficiency for an extreme-scale direct numerical simulation (DNS) of turbulent thermal convection using up to 80% of the entire LUMI supercomputer. URL:https://ceec-coe.eu/event/code-of-the-month-vol-6-neko-by-ceec-public-event/ LOCATION:Online END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20231213T140000 DTEND;TZID=Europe/Paris:20231213T170000 DTSTAMP:20260415T061539 CREATED:20231107T125122Z LAST-MODIFIED:20240214T101053Z UID:393-1702476000-1702486800@ceec-coe.eu SUMMARY:1st CEEC Community Workshop: Energy-Efficient\, Fault Resilient\, and Scalable Solvers for CFD Codes DESCRIPTION:Join us for our first annual community workshop! 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 computations energy-efficient (aka sustainable) and robust numerically but also in terms of fault tolerance. On the level of algorithmic solutions\, we propose to utilize all provided resources wisely by exhibiting algorithms to computation overlapping but even more communication overlapping strategies. We also promote mixed-precision strategies with the aid of computer arithmetic tools like VerifiCarlo and its variable precision backend. Hence\, before lowering precision\, one must 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 also work on fault tolerant and resilient algorithms\, adaptivity and meshing/ mesh refinement that adapt to the heterogeneous nature of current machines. Another issue discussed in the workshop is the adaptation of adjoint-based topology optimization methods to spectral-element CFD codes. Therefore\, in this workshop\, we will share our approaches\, lessons learnt with preliminary results\, and outline perspectives for the upcoming three years of the project. \nAgenda:\n\n14:00 Opening\n14:05 Niclas Jansson\, KTH. “Scalable task-parallel multigrid solvers on GPUs”\n14:30 Dinesh Parthasarathy\, FAU. “Optimizing multigrid solvers using grammar-guided genetic programming”\n14:55 Roman Iakymchuk\, UmU. “A tool-driven approach toward mixed-precision and sustainable solvers for CFD codes”\n15:20 Break\n15:35 Eman Bagheri and Manuel Münsch\, FAU. “Fault-resilient algorithms for Exascale CFD”\n16:00 Adam Peplinski\, KTH. “h-type adaptive mesh refinement in spectral-element solvers: Application to Nek5000 and Neko”\n16:25 Eddie Wadbro and Martin Berggren\, UmU. “Topology optimization in spectral-element codes”\n16:50 Summary\n\nRegister for free here! URL:https://ceec-coe.eu/event/1st-ceec-community-workshop-energy-efficient-and-scalable-solvers-for-cfd-codes/ CATEGORIES:Workshop END:VEVENT BEGIN:VEVENT DTSTART;TZID=Europe/Paris:20231116T003000 DTEND;TZID=Europe/Paris:20231116T013000 DTSTAMP:20260415T061539 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:20260415T061539 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 END:VCALENDAR