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DTSTART;TZID=Europe/Paris:20260720T170000
DTEND;TZID=Europe/Paris:20260720T183000
DTSTAMP:20260717T153707Z
CREATED:20260716T083800Z
LAST-MODIFIED:20260717T153707Z
UID:2278-1784566800-1784572200@ceec-coe.eu
SUMMARY:CEEC at WCCM - ECCOMAS 2026
DESCRIPTION:Join us in Munich for the 17th World Congress on Computational Mechanics 10th European Congress on Computational Methods in Applied Sciences and Engineering (WCCM – ECCOMAS 2026 ) for a talk called\, “Adjoint Methods Using POD State Reconstructions on Modern HPC Architectures.” \nPart of the mini-symposium MS349B Topology\, Shape And Parameter Optimisation For Time-Dependent Systems II\, the talk given by our own Harrison Nobis  discusses the potential for placing checkpointing with Proper Orthogonal Decomposition to make adjoint sensitivity analysis  in CFD more efficient and better suited to modern heterogeneous architectures. \nAccessing the full time history of the state\, either through direct storage or checkpointing and recomputation\, can make adjoint sensitivity analysis of dynamical systems prohibitively costly over long time integration periods. This is particularly relevant in large scale Computational Fluid Dynamics (CFD) applications consisting of time averaged objective functions that may require long integration periods to converge. In this work we investigate integrating the adjoint system through a truncated reconstruction of the forward state based on a Proper Orthogonal Decomposition (POD). The forward and adjoint computations are performed using the GPU based spectral element solver Neko\, meanwhile the POD computation is performed in-situ using the data processing toolbox pySEMTools. The POD algorithm is both parallel in space and streaming in time\, enabling the use in large scale CFD applications. While similar methodologies have been explored in the past\, a salient feature of the proposed method relates to modern HPC architectures consisting of both CPUs and GPUs. Performing the CFD simulation on the GPUs allows the otherwise idle CPUs to be leveraged in performing the POD computation\, again\, reducing the overall cost. The proposed methodology is compared to the conventional method of checkpointing both in terms of cost reduction and errors incurred at various levels of POD truncation.
URL:https://ceec-coe.eu/event/ceec-at-wccm-eccomas-2026/
CATEGORIES:Conference,mini-symposium,Paper Talk
ATTACH;FMTTYPE=image/gif:https://ceec-coe.eu/wp-content/uploads/2026/07/WCCM-–-ECCOMAS--e1784302588842.gif
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DTSTART;TZID=Europe/Paris:20261002T134500
DTEND;TZID=Europe/Paris:20261002T144500
DTSTAMP:20260812T113515Z
CREATED:20260812T113515Z
LAST-MODIFIED:20260812T113515Z
UID:2280-1790948700-1790952300@ceec-coe.eu
SUMMARY:womENcourage™ 2026: Bringing Simulations to Life with Vistle
DESCRIPTION:Join our own Susanne Malheiros for her talk\, “Bringing Simulations to Life with Vistle\,” which is part of the workshop under the theme “Technical Computing Topics.” \nHow can highly complex simulation results be turned into compelling stories that empower both researchers and their audiences?  \nThis workshop introduces Vistle\, an open-source visualization tool designed to embed scientific data into immersive virtual reality environments. By integrating computational results into three-dimensional models—whether built in modelling software or captured from real life through laser scanning or photogrammetry—Vistle helps scientists and their collaborators explore and present their work in new ways. Drawing on real examples from the “Center of Excellence for Computational Fluid Dynamics” (CEEC) project\, the session offers a behind-the-scenes look at how Vistle was used to visualise large-scale CFD simulation results in virtual reality\, first prototyping on a laptop and then scaling up to a computing cluster. Through lecture-style segments and live demonstrations\, participants will learn how to create their own interactive visualization pipelines\, adjust parameters on the fly\, and customise workflows for their research. No prior experience with Vistle or similar tools is required—just curiosity and a willingness to explore how visualization can enhance the reach and impact of one’s work.  \nLaptops are not required; slides will be shared afterwards so participants can experiment on their own.
URL:https://ceec-coe.eu/event/womencourage-2026-bringing-simulations-to-life-with-vistle/
CATEGORIES:Conference,Workshop
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