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  • Poster for a webinar titled "Performance Portability for Fortran CFD Software with GALÆXI." At the top left, bold black text displays the title. The top right features the CEEC and GALÆXI logos. Main section text: "Join CEEC and Spencer Starr for a webinar on porting Fortran codes with CUDA/HIP C++! We’ll discuss important design questions and porting requirements (e.g. adapting algorithms and data structures) through the example of the high-order discontinuous Galerkin spectral element CFD code GALÆXI." Date and time information with icons: December 9, 2025, 14:00 – 15:00 CET, Online. Simple white and grey background with a thin, curled-corner border around the main text and a subtle wave pattern at the bottom.

    Performance Portability for Fortran CFD Software with GALÆXI

    Online

    With GPU acceleration now ubiquitous in HPC, porting existing simulation software to leverage GPUs is more important than ever. Although many GPU programming models exist, they often have limited or no support for Fortran, making porting existing Fortran scientific codes to multiple computing architectures an extra struggle. This webinar guides you through one solution of taking a Fortran CFD code and porting it to GPUs using CUDA/HIP C++. We will cover the basics of GPU hardware and programming through the example of the high-order discontinuous Galerkin spectral element CFD code GALÆXI, including the important design questions and porting requirements for researchers to consider when porting their own codes.

  • CEEC at the 1st Stuttgart Research Software Day

    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.

  • FAIR-FLEXI – A Trustworthy CFD Code for Simulation and Training

    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: […]

  • GALAEXI: An Architecture-Agnostic GPU-Acceleration Approach for Legacy Fortran Software

    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” 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 […]

  • A landscape event flyer. Top left, large title text: “Flagship scientific applications on a European RISC-V long-vector accelerator”. Top right, the logo text “CEEC”. Left side shows a large rounded rectangle text box with a curled-paper design on the top-left and bottom-left corners. Inside the box, paragraph text: “Join CEEC and EPI for our experiences and lessons learned when porting applications from CEEC and other Centers of Excellence to the long-vector RISC-V accelerators.” Below it, italic paragraph: “Learn code optimization techniques, common performance pitfalls, and evaluation methods to apply to your own codes on this novel long-vector hardware platform.” Bottom left of the box has three icon-and-text lines: “April 29, 2026”, “14:00 – 15:00 CEST”, “Online”. Right side contains three main graphics. Upper middle is a square chip image labeled “epi” and “EPAC” with smaller text “A0 000010 #2”. Upper right is a bar chart with y-axis label “Speedup” and x-axis label “BLOCK_SIZE” with tick labels “16”, “64”, “128”, “240”, “256”, “512”. The chart legend lists: “Scalar”, “Original vector”, “VEC2”, “IVEC2”, “VEC1”. Bottom right is a diagram shaped like a blue-to-purple connector between two areas. Above the left half is the heading “Hardware projects” and above the right half is the heading “Centers of Excellence (CoE)”. On the left half are a factory-like icon and the text “RISC-V” plus a small square logo with the text “epi”. Between the halves are four arrow labels pointing right: “Provide real use-cases”, “Discover performance issues”, “Evaluate app portability”, “Optimize app for RISC-V”. On the right half are multiple logos/text: “CHEESE”, “PLASMA PEPSC”, and a “CEEC” logo. Along the bottom of the flyer are thin decorative wavy lines.

    Flagship scientific applications on a European RISC-V long-vector accelerator: Lessons learned

    Online

    As Europe accelerates its efforts in chip sovereignty, scientific applications need to be ported to and evaluated on emerging prototypes, assessing their performance as well as the technology readiness of the new hardware platforms. In this talk, we will share the experiences and lessons learned when porting applications from CEEC and other Centers of Excellence […]

  • Digital webinar poster for CEEC. Top right corner: CEEC logo in black capital letters with a small curved “wave” accent above the first E. Large heading on the left: “Webinar” followed by a small laptop icon. Second line, large bold text: “Enabling mixed-precision with VerifiCarlo: Sharing CEEC experience” Beneath the heading is a large dark-blue rectangular panel that contains the event details in white text with small icons: First line, next to a calendar icon: “May 27, 2026” Second line, next to a clock icon: “15:00 – 16:00 CEST” Third line, next to an icon of a small building: “Online” Lower part of the blue panel has two short descriptive sections: “Discover … Verificarlo, An open-source framework for verifying and optimizing numerical accuracy.” “Learn about … Verificarlo’s variable precision backend and that let’s one explore the trade-offs between precision and performance IN neuroimaging pipelines, DFT quantum mechanical modeling, structural simulations, and now CFD.” On the right side of the poster, framed by a thin dark border, is the Verificarlo logo: a large green checkmark leaning to the right, followed immediately by the word “verificarlo” in clean, black lowercase letters. The background is white with thin, subtle horizontal wave lines along the bottom edge, giving a light, technical, modern feel.

    Enabling mixed-precision with VerifiCarlo: Sharing CEEC experience

    Join our own Roman Iakymchuk, Umeå University on behalf of CEEC, and Pablo de Oliveira Castro, Université Paris-Saclay UVSQ, for our next webinar on mixed precision and VerifiCarlo!

    In this webinar, we will introduce Verificarlo, showcase its backends for numerical bug detection and mixed-precision analysis, and present a success story highlighting the road from analysis of codes with Verificarlo to reliable mixed-precision codes.

  • Calibration of Analytical Suction Bucket Installation Models Using Grain-Scale LBM-DEM Simulations

    Suction bucket foundations offer significant advantages for offshore wind applications, enabling fast and cost-efficient installation. However, installation failures due to piping erosion remain a critical challenge, particularly in loose or highly permeable seabeds. Understanding the interplay between seepage flow, soil properties, and foundation geometry during suction installation is essential for improving design guidelines and installation strategies. In this talk, Samuel Kemmler presents results that illustrate how fully resolved LBM-DEM modeling can complement experimental and field studies, providing a powerful tool for developing more robust suction bucket installation strategies in challenging seabed conditions.

  • Promotional graphic for a webinar titled “Extreme-Scale High-Fidelity Computational Fluid Dynamics with Neko.” The title is written in large bold black letters across the top left on a white background. In the top right corner is the CEEC logo in black, with three curved lines above the first “E” suggesting airflow. Below the title, inside a rounded white rectangular panel with a thin black outline, is the event description in black text: “Join CEEC and Niclas Jansson for a hands-on webinar introducing Neko! We’ll explore Neko's capabilities, focusing on major updates to its features, functionalities, and user interaction. This interactive session will teach participants how to run the code and fine-tune configuration settings for peak performance.” Near the bottom left of the panel, small black icons show a calendar, a clock, and a location pin, followed by the event details: “June 17, 2026 13:00 – 15:00 CEST Online” On the right side of the image, outside the text panel, is the Neko logo: a stylized black-and-white cartoon cat wearing goggles, with a curved, wave-like flourish beneath it, followed by the word “NEKO” in bold, italicized, horizontal-striped letters that give a sense of motion. Along the very bottom edge of the image, thin gray wavy lines suggest flowing fluid or waves.

    Extreme-Scale High-Fidelity Computational Fluid Dynamics with Neko

    Neko is a portable framework for high-order spectral element-based simulations, focusing primarily on incompressible and compressible fluid flows. Written using a modern object-oriented approach, the framework supports a wide range of hardware backends, including general-purpose processors, accelerators, and vector processors. Neko has demonstrated excellent performance and scalability across various hardware architectures and was nominated as […]