The NHR PerfLab is a collaborative effort by the NHR centers at FAU, RWTH Aachen, ZIB Berlin, and the University of Paderborn to combine resources and activities around performance engineering, code analysis, HPC computer architectures, and tools. The NHR PerfLab seminar is a series of public talks about those topics, and more. The usual time slot is Tuesday 2 p.m.–3 p.m CE[S]T. Video recordings are usually available on the NHR@FAU YouTube Channel.
If you want to get notified of upcoming talks, subscribe to the nhr-announcements mailing list.
Zoom link: https://go-nhr.de/perflab-seminar
Contact address for inquiries: hpc-support@fau.de
Find below a list of past and upcoming public talks:
- May 5, 2026 (online)
Ondřej Vysocký, IT4Innovations National Supercomputing Center: MERIC: Energy Efficiency Data Center Software Suite. - June 30, 2026 (on-site)
Martin Schulz, TU München: MPI State of the Union. - July 7, 2026 (online)
Iason Chalas, IBM Research Zurich: Analog In-Memory Computing for Efficient Large Language Model Deployment.
- April 28, 2026
Chris Kitching, Spectral Compute: SCALE: Ahead of Time Compilation of CUDA for HPC platforms.
Slides TBA Video TBA - March 10, 2026
William Jalby, Université de Versailles Saint-Quentin-en-Yvelines: The MAQAO performance analysis and optimization framework.
Slides Video - March 3, 2026
Jee Choi, University of Oregon: Human vs. AI – Who Is Better At Sparse Computation?
Slides Video - February 3, 2026
Alexander Heinlein, TU Delft: Domain Decomposition-Based Preconditioners and Neural Networks.
Slides Video - January 20, 2026
Holger Fröning, ZITI, Heidelberg University: From Picojoules to Gigawatt-hours: Energy-to-Completion and GPU DVFS for LLM Workloads.
Slides Video - January 15, 2026
Andrea Pilzer, NVIDIA AI Technology Center (Italy): Scaling and accelerating LLM trainings
Slides Video
- December 9, 2025
Jose Moreira, IBM: Why (and how) matrix processing?
Slides Video - November 11, 2025
Nils Thürey, TU München: Generative AI and Probabilistic Learned Solvers.
Slides Video - October 21, 2025
Bernd Mohr, Jülich Supercomputing Center: Memories of a Performance Engineer: 38 Years of Tools Building.
Slides Video - October 14, 2025
Harald Köstler, FAU Erlangen-Nürnberg: Code Generation Technology for HPC Codes: Case studies on waLBerla and HyTeG.
Slides Video - October 7, 2025
Julita Corbalan Gonzalez, Energy Aware Solutions S.L.: Energy monitoring and optimization made easy and accessible — powered by EAR.
Slides Video - September 9, 2025
Paul Kelly, Imperial College: Compiler architecture: the discipline and abstractions to exploit application domains, target accelerators and feed microarchitecture.
Slides Video - September 2, 2025
Matt Godbolt: Exploring Compilers for HPC.
Slides Video - July 22, 2025
Jürgen Teich, FAU Erlangen-Nürnberg: (Re-)Configurable Processor Arrays On Chip—Low-Energy/High-Performance Loop Nest Acceleration.
Slides Video (fau.tv via IdM Login) - July 15, 2025
Tom Deakin, University of Bristol: C++ is (nearly) all you need for HPC.
Slides Video - July 1, 2025
Martin Schulz, TU München: Quantum Computing in the Munich Quantum Valley.
Slides Video - June 24, 2025
Sarah Neuwirth, University of Mainz: From Data Traces to System Insight—Redefining I/O Understanding in HPC.
Slides Video - May 6, 2025
Sunita Chandrasekaran, University of Delaware: The Artificial Scientist: In-Transit Machine Learning of Plasma Simulations.
Slides Video - April 15, 2025
Johannes Partzsch, TU Dresden: Neuromorphic Hardware—A System Perspective.
Slides Video - April 1, 2025
Catherine Schuman, University of Tennessee, Knoxville: Neuromorphic Computing from the Computer Science Perspective—Algorithms and Applications.
Slides Video - March 18, 2025
Thomas Ludwig, German Climate Computing Center (DKRZ): The Stunning Success Story of Machine Learning for Weather Prediction.
Slides Video - March 10, 2025
Katherine Rasmussen, Lawrence Berkeley National Laboratory: Fortran 2023 for you: Features and tools.
Slides Example Slide 25 Video - February 11, 2025
Anton Kozhevnikov, Swiss National Supercomputing Centre (CSCS): SIRIUS: a GPU-accelerated plane-wave DFT library.
Slides Video - February 4, 2025
Ulrich Rüde, Chair for System Simulation (LSS), FAU Erlangen-Nürnberg: Efficient Solvers for Partial Differential Equations.
Slides Video - January 14, 2025
Grace Li Zhang, Technical University of Darmstadt: Efficient and Robust Hardware for Neural Networks
Slides Video
- December 10, 2024
Filippo Mantovani, Barcelona Supercomputing Center: A RISC-V vector CPU for High-Performance Computing: architecture, platforms and tools to make it happen.
Slides Video - October 29, 2024
Estela Suarez, Senior Principal Solution Architect at SiPEARL: (Co-)designing a European CPU for HPC/AI
Slides Video
- September 24, 2024
Christian Trott, Sandia National Laboratories: Kokkos: Getting Lucky by Design.
Slides TBA Video - July 30, 2024
Sadaf Alam, University of Bristol: How to rapidly deploy and deliver a highly sustainable national Exascale AI research resource.
Slides Video - July 16, 2024
Piotr Luszczek, Innovative Computing Lab (ICL), University of Tennessee, Knoxville: Mixing precisions in numerical algorithms: HPC perspective with modern hardware context.
Slides Video - July 2, 2024
Achim Basermann, German Aerospace Center (DLR): Quantum Computing at DLR—Algorithms and Applications.
Slides Video - May 28, 2024
Michael Klemm, Advanced Micro Devices (AMD): OpenMP Target Offloading for AMD GPUs and APUs.
Slides Video (FAU IdM login required) - March 26, 2024
Martin Schreiber, University of Grenoble: Breaking through the barrier of time integration for climate and weather simulations.
Slides Video - February 27, 2024
Melven Röhrig-Zöllner, German Aerospace Center (DLR): Performance of linear solvers in tensor-train format on current multicore architectures.
Slides Video - January 30, 2024
Ivo Sbalzarini, Max Planck Institute of Molecular Cell Biology and Genetics, Dresden: Processing very large image volumes with the adaptive particle representation.
Slides Video
- December 12, 2023
Théo Mary, Sorbonne University and French National Center for Scientific Research (LIP6): Mixed-Precision Computing: An Overview.
Slides Video - November 7, 2023
Jan Eitzinger, NHR@FAU: A review of processor advances over the past thirty years—an outsider’s perspective
Slides Video - October 17, 2023
Mathias Krause, Karlsruhe Institute of Technology: Facing Challenges in Computational Fluid Mechanics with Lattice Boltzmann Methods, OpenLB and High Performance Computers.
Slides Video - September 12, 2023
Paolo Bientinesi, University of Umeå: The Linear Algebra Mapping Problem and how programming languages solve it.
Slides Video - September 5, 2023
Hiroyuki Ootomo, Tokyo Tech: DGEMM on Integer Tensor Cores.
Slides Video - July 11, 2023
Charlotte Debus, Karlsruhe Institute of Technology: Towards robust and efficient AI at scale.
Slides Video - May 30, 2023
Johannes Doerfert, Lawrence Livermore National Laboratory: LLVM in HPC – Enabling Performance Portability, Interoperability, and Novel Features.
Slides (Part 1+2) Video (Part 1) Video (Part 2) - May 16, 2023
Hatem Ltaief, King Abdullah University of Science and Technology: The Comedy Club of High-Performance Computing: Low-Rank Matrix Approximation Takes the Stage!.
Slides Video - April 18, 2023
Ahmad Tarraf, Technical University of Darmstadt: Conquering Noise With Hardware Counters on HPC Systems.
Slides Video - April 4, 2023
Joachim Jenke (né Protze), RWTH Aachen University: Asynchronous MPI communication with OpenMP tasks – spawning task dependency graphs across nodes.
Slides Video - February 14, 2023
Florian Sattler, Saarland University: Configuration-Aware Performance Analysis.
Slides Video - January 31, 2023
Philipp Slusallek, German Research Center for Artificial Intelligence and Saarland University: Digital Reality: From Learned Models via Synthetic Data to Trusted-AI — and Back!
Slides Video
- December 20, 2022
Michael Hartmann, FAU Erlangen-Nürnberg: Quantum Computing Today and Tomorrow.
Video - November 29, 2022
Simon McIntosh-Smith, University of Bristol: Enabling next-generation processor simulations with SimEng.
Slides Video - November 8, 2022
Martin Kronbichler, University of Augsburg: High-Performance Implementations for High-Order Finite-Element Discretizations of PDEs.
Slides Video - October 18, 2022
Rolf Rabenseifner and Tobias Haas, High Performance Computing Center Stuttgart (HLRS): New Features in MPI 4.0.
Slides Video - September 6, 2022
Jens Domke, RIKEN: LARC: A Case Study in Enhancing CPUs with Copious 3D-Stacked Cache.
Slides Video - June 21, 2022
Ana Lucia Varbanescu, University of Twente: Parallel Graph Processing – a Killer App for Performance Modeling.
Slides Video - June 9, 2022
Kengo Nakajima, University of Tokyo: Innovative Scientific Computing by Integration of (Simulation+Data+Learning) in Information Technology Center, The University of Tokyo.
Slides Video - May 10, 2022
Tze Meng Low, Carnegie Mellon University: Designing for Portable, Efficient and Explainable Performance.
Slides Video - April 26, 2022
Ayesha Afzal, NHR@FAU: The Role of Idle Waves in Modeling and Optimization of Parallel Programs.
Slides Video - April 12, 2022
Ruud van der Pas, Oracle Corp.: gprofng: The Next Generation GNU Profiling Tool.
Slides Video
- April 5, 2022
Christian Terboven, RWTH Aachen University IT Center: OpenMP Offloading. - February 15, 2022
Stefano Markidis, KTH Royal Institute of Technology: Designing Next-Generation Numerical Methods with Physics-Informed Neural Networks.
Slides Video - February 1, 2022
Christie L. Alappat, Erlangen National High Performance Computing Center: Performance Engineering for Sparse Matrix-Vector Multiplication with the Recursive Algebraic Coloring Engine.
Slides Video
- December 15, 2021
John D. McCalpin, Texas Advanced Computing Center: Memory Bandwidth and System Balance in HPC Systems – 2021 Update.
Slides Video - November 23, 2021
Daniel Jünger and Bertil Schmidt, University of Mainz: General-purpose GPU Hashing Data Structures and their Application in Accelerated Genomics.
Slides Video - November 2, 2021
Mehmet Soysal, Karlsruhe Institute of Technology: On-demand file systems: use cases and lessons learned.
Slides Video - October 19, 2021
Tobias Kenter, University of Paderborn: Discontinuous Galerkin Shallow-Water Simulations on FPGAs.
Slides Video (FAU IdM login required) - October 5, 2021
Thomas Kühne, University of Paderborn: Towards exascale simulations using the submatrix method and approximate computing.
Slides Video - September 21, 2021
Christian Iwainsky, TU Darmstadt: Performance Measurements in HPC: Techniques, Side Effects, and Use.
Slides Video
- July 20, 2021
Sebastian Oeste, ZIH Dresden: Exclusive file systems for power users with BeeGFS and network NVMe storage.
Slides Video - June 22, 2021
Christian Terboven, RWTH Aachen University IT Center: Tasking in OpenMP 5.0.
Slides Video - June 1, 2021
Jan Laukemann, Intel Labs: ALTO: Adaptive Linearized Storage of Sparse Tensors.
Slides Video - May 18, 2021
Hartwig Anzt, Karlsruhe Institute of Technology: A Modular Precision Ecosystem Based on a Memory Accessor.
Slides Video - May 4, 2021
Andreas Abel, Saarland University: Automatic Generation of Models of Microarchitectures. - March 23, 2021
Tobias Ribizel, Karlsruhe Institute of Technology: Parallel Selection on GPUs.
Slides Video
- March 16, 2021
Steffen Christgau, Zuse Institut Berlin: On the Interaction of Memory, Application and Operating System on a Heterogeneous Memory System.
Slides - March 9, 2021
Franz-Josef Pfreundt and Jens Krüger, Fraunhofer ITWM: The STX Processor – Hardware and Programming. - February 23, 2021
Georg Hager, NHR@FAU: A closer look at the Fujitsu A64FX processor.
Slides Video
Dr. Georg Hager
Head of Research
Erlangen National High Performance Computing Center (NHR@FAU)
Research Division
- Phone number: +49913185-28973
- Email: georg.hager@fau.de