Proceedings of the 11th Symposium

Abstract

The 11th bwHPC Symposium showcases the breadth and depth of computational research enabled by high-performance computing across disciplines in Baden-Württemberg and beyond. Contributions span advances in Research Data Management (RDM), methodological innovation, domain sciences, and infrastructure development. Several works highlight the increasing integration of Research Data Management with HPC workflows, emphasising FAIR principles, automation, and scalable data handling to support diverse scientific communities. In parallel, new HPC-enabled methods are presented for modelling complex electrochemical and quantum systems, including density functional theory and computational spectroscopy of electrochemical interfaces, and a novel diagrammatic high-temperature expansion approach to capture dynamical correlations in frustrated quantum magnets.

The proceedings feature significant strides in large-scale simulation and modelling, such as an accelerated Monte Carlo framework for long-axial field-of-view PET/CT systems, a massively parallel SYCL-based radiative transfer code for astrophysical applications, and refined CFD simulations to study airflow effects in agricultural machinery for insect conservation. Advances in astrophysics include N-body studies exploring the influence of galactic triaxiality on the evolution of triple supermassive black holes. In Earth system modelling, the introduction of PaleoPlaSim 1.0 demonstrates the potential of efficient, intermediate-complexity climate models to support large ensemble studies and perturbation-based calibration.

Contributions also highlight emerging security and AI-driven HPC challenges, with investigations into the detection of network information hiding artifacts at scale and reflections on the need for interactive, GPU-ready, interoperable HPC infrastructure to support modern AI-driven research workflows. Complementing these scientific advances, the bwRSE4HPC project illustrates how professional research software engineering practices enhance performance, sustainability, and collaborative development across scientific domains.

Together, these works underscore how HPC, combined with robust software engineering, modern infrastructure, and interdisciplinary methodologies, continues to drive scientific discovery, support new research paradigms, and enable the exploration of increasingly complex physical, biological, and computational systems.

Lectures in detail

  • Marrying Two Worlds: Research Data Management and Supercomputing
    • Dr. Stephan Hachinger
    • Leibniz Supercomputing Center (LRZ), Garching
  • Challenges for modeling and understanding electrochemical interfaces: The case of InP
    • Dr. Matthias May,  Vibhav Yadav and Holger Euchner
    • Institute of Physical and Theoretical Chemistry, Tübingen
  • Detection of Network Information Hiding Artifacts – A Case for HPC?
    • Prof. Dr. Steffen Wendzel, Jörg Keller and Simon Volpert
    • University of Ulm
    • Fernuniversität Hagen
  • Dynamic correlations of frustrated quantum spins from high-temperature expansion
    • Dr. Björn Sbierski
    • Institute of Physical and Theoretical Chemistry, Tübingen
  • Accelerated Monte Carlo Simulation Framework for Patient Motion Correction with a Long Axial field of view Positron Emission Tomography scanner
    • Mr. Wenhong Lan, C. Pommranz, S. Weigel, P. M. Linder, Elnaz Olyaei, C. la Fougère and F. P. Schmidt
    • Department Of Nuclear Medicine And Clinical Molecular Imaging, University Hospital Tübingen
    • Institute For Astronomy And Astrophysics, University Of Tübingen
    • Werner Siemens Imaging Center, Department Of Preclinical Imaging And Radiopharmacy, University Of Tübingen
    • Cluster Of Excellence Ifit (Exc 2180) “Image Guided And Functionally Instructed Tumor Therapies”, University Of Tübingen
  • bwHPC4RSE - Enabling Scientific Discovery Through RSE Support (Case Studies from bwRSE4HPC)
    • Dr. Thomas Isensee, Andreas Baer, René Caspart, Jasmin Hörter, Glen Hunter, Dominic Kempf, Marcel Koch, Kai Riedmiller, Tim Schrader and Inga Ulusoy
    • Scientific Computing Center, Karlsruhe Institute Of Technology
    • 2Scientific Software Center, Interdisciplinary Center For Scientific Computing (Iwr), Heidelberg University
  • THOR: massively parallel GPU-accelerated radiative transfer (A modern Monte Carlo radiative transfer code for astrophysics)
    • Dr. Chris Byrohl, Dylan Nelson
    • Institut Für Theoretische Astrophysik, Heidelberg University, Heidelberg, Germany
    • Kavli Ipmu, University Of Tokyo, Kashiwa, Japan
    • Interdisziplinäres Zentrum Für Wissenschaftliches Rechnen, Heidelberg University
  • Interactive AI on bwHPC (Lessons Learned from Building a Large-Scale Image Analysis Platform)
    • Mr. Alexander Zeilmann, Erik Schnetter and Vincent Heuveline
    • Interdisciplinary Center For Scientific Computing, Heidelberg University
    • Data Mining And Uncertainty Quantification Group, Heidelberg Institute For Theoretical Studies, Heidelberg
  • Numerical simulation of the airflow inside disc mowers to protect grassland insects
    • Mr. Jonas Frank, Lea von Berg, Stefanie Erhard, Oliver Betz, Johannes Steidle and Stefan Böttinger
    • Dept. Fundamentals Of Agricultural Engineering, University Of Hohenheim
    • Dept. Evolutionary Biology Of Invertebrates, University Of Tübingen
  • Influence of Triaxiality on the Dynamics of Triple Supermassive Black Holes in a Cosmological Context.
    • Mr. Navonil Saha, Andreas Just, Peter Berczik, Margarita Sobolenko and Walter Dehnen
    • Zentrum Fur Astronomie Der Universitat Heidelberg, Astronomisches Recheninstitut, Heidelberg
    • Nicolaus Copernicus Astronomical Centre, Polish Academy Of Sciences, Warsaw, Poland
    • Main Astronomical Observatory, National Academy Of Sciences Of Ukraine, Kyiv, Ukraine
  • PaleoPlaSIM 1.0: An Earth System Model of Intermediate Complexity for Paleoclimate Modeling and Large Ensemble Studies
    • Ms. Muriel Racky, Arya Samanta, Kira Rehfeld
    • Geo- And Environmental Center (Guz), University Of Tübingen

Further information:

  • The Proceedings of the 11th bwHPC Symposium have been published and are available online.
  • University of Tübingen
  • You can access the flashback of the 11th bwHPC Symposium 2025, featuring a link to the collection of posters here.