Markus Wittmann


Regionales Rechenzentrum Erlangen (RRZE)
Professur für Höchstleistungsrechnen

Project member

(SPP 1648: Software for Exascale Computing):
SPPEXA: EXASTEEL II - Bridging Scales for Multiphase Steels
Prof. Dr. Gerhard Wellein
(01/01/2016 - 31/12/2018)

(SPP 1648: Software for Exascale Computing):
EXASTEEL - Bridging Scales for Multiphase Steels
Prof. Dr. Gerhard Wellein
(01/11/2012 - 31/12/2015)

SKALB: SKALB: Lattice-Boltzmann-Methoden für skalierbare Multi-Physik-Anwendungen
Prof. Dr. Gerhard Wellein
(01/01/2009 - 31/12/2011)

Publications (Download BibTeX)

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Wittmann, M., Haag, V., Zeiser, T., Köstler, H., & Wellein, G. (2018). Lattice Boltzmann benchmark kernels as a testbed for performance analysis. Computers & Fluids, 172, 582-592.
Wittmann, M., Hager, G., Janalik, R., Lanser, M., Klawonn, A., Rheinbach, O.,... Wellein, G. (2018). Multicore Performance Engineering of Sparse Triangular Solves Using a Modified Roofline Model. In 2018 30TH INTERNATIONAL SYMPOSIUM ON COMPUTER ARCHITECTURE AND HIGH PERFORMANCE COMPUTING (SBAC-PAD 2018) (pp. 233-241). Lyon, FR: NEW YORK: IEEE.
Bauer, S., Mohr, M., Rüde, U., Weißmüller, J., Wittmann, M., & Wohlmuth, B.I. (2016). A two-scale approach for efficient on-the-fly operator assembly in massively parallel high performance multigrid codes.
Rüde, U., Bauer, S., Mohr, M., & Wittmann, M. (2016, April). Efficient stencil assembly in global geodynamic models. Paper presentation at EGU General Assembly 2016, Wien, AT.
Bauer, S., Bunge, H.-P., Drzisga, D.P., Gmeiner, B., Huber, M., John, L.,... Wohlmuth, B.I. (2016). Hybrid Parallel Multigrid Methods for Geodynamical Simulations. In Bungartz H., Neumann P., Nagel E. (Eds.), 113 (pp. 211-235). Berlin, Heidelberg, New York: Springer.
Wittmann, M., Hager, G., Zeiser, T., Treibig, J., & Wellein, G. (2015). Chip-level and multi-node analysis of energy-optimized lattice Boltzmann CFD simulations. Concurrency and Computation-Practice & Experience, 1-5.
Selgrad, K., Lier, A., Wittmann, M., Lohmann, D., & Stamminger, M. (2014). Defmacro for C: Lightweight, Ad Hoc Code Generation. In Verna, Didier (Eds.), Proceedings of ELS 2014 7th European Lisp Symposium (pp. 80-87). Paris, FR.
Wittmann, M., Zeiser, T., Hager, G., & Wellein, G. (2014). Modeling and analyzing performance for highly optimized propagation steps of the lattice Boltzmann method on sparse lattices.
Shahzad, F., Wittmann, M., Zeiser, T., Hager, G., & Wellein, G. (2013). An Evaluation of Different I/O Techniques for Checkpoint/Restart. In Parallel and Distributed Processing Symposium Workshops PhD Forum (IPDPSW), 2013 IEEE 27th International (pp. 1708-1716). Boston, MA, USA: n.a.: IEEE Digital Library.
Shahzad, F., Wittmann, M., Kreutzer, M., Zeiser, T., Hager, G., & Wellein, G. (2013). A survey of checkpoint/restart techniques on distributed memory systems. Parallel Processing Letters, 23(04), 1340011-1340030.

Last updated on 2019-16-03 at 23:01