Sebastian Rettenberger, M.Sc.

Address:

TU München

Institut für Informatik

Boltzmannstr. 3

85748 Garching b. München

Office:

Leibniz Supercomputing Centre (Boltzmannstr. 1):

E.2.036

Email:

Phone:

(089) 35831-7814

Office hours:

by arrangement

Open Student Projects

• Comparing MPI one-sided communication and GPI-2 in ASAGI or SeisSol
• Comparing mesh generators: SimModeler, Gmesh and deal.II
• Automatic generation of parameter files
• OpenMP parallelization for unstructured mesh reconstruction

Software Projects

• ASAGI - a parallel server for adaptive geoinformation
• SWE - Shallow Water Equations teaching code
• SeisSol - Seismic Wave Propagation Solutions for Realistic 3D Media

Publications

• C. Uphoff, S. Rettenberger, M. Bader, E. H. Madden, T. Ulrich, S. Wollherr und A.-A. Gabriel: Extreme Scale Multi-Physics Simulations of the Tsunamigenic 2004 Sumatra Megathrust Earthquake [BibTeX].
  In SC '17: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis, November 2017. accepted.
• S. Rettenberger, O. Meister, M. Bader und A.-A. Gabriel: ASAGI - A Parallel Server for Adaptive Geoinformation [pdf] [BibTeX].
  In EASC '16 Proceedings of the Exascale Applications and Software Conference 2016, S. 2:1–2:9. ACM, September 2016.
• S. Rettenberger und M. Bader: Optimizing Large Scale I/O for Petascale Seismic Simulations on Unstructured Meshes [BibTeX].
  In 2015 IEEE International Conference on Cluster Computing (CLUSTER), S. 314–317. IEEE Xplore, Chicago, IL, September 2015.
• S. Rettenberger, C. Smith und C. Pelties: Optimizing CAD and Mesh Generation Workflow for SeisSol [BibTeX].
  In SC '14: The International Conference for High Performance Computing, Networking, Storage and Analysis. IEEE, New Orleans, November 2014. poster abstract.
• A. Heinecke, A. Breuer, S. Rettenberger, M. Bader, A.-A. Gabriel, C. Pelties, A. Bode, W. Barth, X.-K. Liao, K. Vaidyanathan, M. Smelyanskiy und P. Dubey: Petascale High Order Dynamic Rupture Earthquake Simulations on Heterogeneous Supercomputers [BibTeX].
  In SC '14: Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis, S. 3–14. IEEE, New Orleans, LA, USA, November 2014. Gordon Bell Finalist.
• M. Bader, A. Breuer, W. Hölzl und S. Rettenberger: Vectorization of an Augmented Riemann Solver for the Shallow Water Equations [BibTeX].
  In W. W. Smari und V. Zeljkovic (Hrsg.), Proceedings of the 2014 International Conference on High Performance Computing and Simulation (HPCS 2014), S. 193–201. IEEE, August 2014.
• A. Breuer, A. Heinecke, S. Rettenberger, M. Bader, A.-A. Gabriel und C. Pelties: Sustained Petascale Performance of Seismic Simulations with SeisSol on SuperMUC [pdf] [BibTeX].
  In J.M. Kunkel, T. T. Ludwig und H.W. Meuer (Hrsg.), Supercomputing - 29th International Conference, ISC 2014, Band 8488 der Reihe Lecture Notes in Computer Science, S. 1–18. Springer, Heidelberg, Juni 2014. PRACE ISC Award 2014.
• T. Weinzierl, R. Wittmann, K. Unterweger, M. Bader, A. Breuer und S. Rettenberger: Hardware-aware block size tailoring on adaptive spacetree grids for shallow water waves [BibTeX].
  In HiStencils 2014 - 1st International Workshop on High-Performance Stencil Computations, 2014.
• A. Heinecke, A. Breuer, S. Rettenberger, M. Bader, A. Gabriel und C. Pelties: Optimized Kernels for large scale earthquake simulations with SeisSol, an unstructured ADER-DG code [BibTeX].
  In Supercomputing 2013, The International Conference for High Performance Computing, Networking, Storage and Analysis.. IEEE, Denver, November 2013. Poster abstract, accepted for publication.
• C. Pelties, A. Gabriel, L. Passone, A. Breuer, S. Rettenberger und A. Atanasov: SeisSol: The ADER-DG method for seismic wave propagation and earthquake rupture dynamics [BibTeX].
  In SCEC Annual Meeting 8-11 September 2013, Palm Springs, California, USA, September 2013.

Talks

• S. Rettenberger: Scalable I/O for the earthquake simulation software SeisSol [BibTeX].
  Exascale I/O for Unstructured Grids (EIUG), Hamburg, Germany, September 2017.
• S. Rettenberger: Asynchronous I/O for various I/O libraries [BibTeX].
  High Performance Computing Workshop, Leogang, März 2017.
• S. Rettenberger: Large Scale I/O of an open-source earthquake simulation package [BibTeX].
  19th Results and Review Workshop of the HLRS, Stuttgart, Oktober 2016.
• S. Rettenberger: Performing Earthquake Simulations at Petascale with SeisSol - an I/O View [BibTeX].
  5th European Seminar on Computing, Pilsen, Juni 2016.
• S. Rettenberger: I/O and Checkpointing for Large-Scale Seismic Simulations [BibTeX].
  SeisMIC - Seismic Simulation on Current and Future Supercomputers (Workshop), Ostrava, Mai 2016.
• S. Rettenberger: ASAGI - A Parallel Server for Adaptive Geoinformation [pdf] [BibTeX].
  Exascale Applications & Software Conference 2016 (EASC 2016), Stockholm, April 2016.
• S. Rettenberger: Optimizing Large Scale I/O for Petascale Seismic Simulations on Unstructured Meshes [BibTeX].
  IEEE Cluster 2015, Chicago, IL, USA, September 2015.
• S. Rettenberger: SeisSol - Petascale seismic wave simulation on unstructured meshes [BibTeX], Troy, NY, USA, Rensselaer Polytechnic Institute, August 2014. Colloquium talk.
• S. Rettenberger: Towards petascale seismic wave propagation in SeisSol [pdf] [BibTeX].
  ParCo 2013, Garching, Germany, September 2013.
• S. Rettenberger: A Parallel Server for Adaptive Geoinformation [pdf] [BibTeX].
  SIAM Conference on Mathematical and Computational Issues in the Geosciences, Padova, Italy, Juni 2013.

Students

• D. Endreß: Generic Output for Mesh-Based Supercomputing Applications [pdf] [BibTeX].
  Master's thesis, Institut für Informatik, Technische Universität München, April 2017.
• U. Huber: A Scalable Mesh Format for Parallel Unstructured Meshes in Scientific Applications [pdf] [BibTeX].
  Bachelor's thesis, Institut für Informatik, Technische Universität München, März 2017.
• M. Fasching: JIT compilation to realize flexible data access in simulation software [pdf] [BibTeX].
  Master's thesis, Institut für Informatik, Technische Universität München, März 2017.
• F. Simonis: Parallel Sub-sampling of Unstructured High Order Data for Visualisation [BibTeX].
  Studienarbeit/SEP/IDP, Institut für Informatik, Technische Universität München, Oktober 2015. Guided research project.
• P. Nieleck: Expanding Zoltan by additional SFC orders to improve locality on unstructured grids [pdf] [BibTeX].
  Bachelor's thesis, Institut für Informatik, Technische Universität München, März 2014.
• M. Fasching: Thread-based Optimization of Memory Access Patterns in ASAGI [pdf] [BibTeX].
  Bachelor's thesis, Institut für Informatik, Technische Universität München, Dezember 2013.
• L. Spiegelberg: Ocean circulation studies in the Labrador Sea [pdf] [BibTeX].
  Bachelor's thesis, Institut für Informatik, Technische Universität München, Oktober 2013.
• W. Hölzl: Vectorization and GPGPU-Acceleration of an Augmented Riemann Solver for the Shallow Water Equations [pdf] [BibTeX].
  Bachelor's thesis, Institut für Informatik, Technische Universität München, Juli 2013.