Staff profile

Book

T. Weinzierl: A Framework for Parallel PDE Solvers on Multiscale Adaptive Cartesian Grids. Verlag Dr. Hut, München, 2009.

This book is available online though I very much appreciate if you buy it from the publisher.

Book

M. Bader, H.-J. Bungartz and T. Weinzierl (ed.): Advanced Computing, Volume 93 of Lecture Notes in Computational Science and Engineering. Springer-Verlag, Heidelberg, Berlin, 2013.

• Scientific Computing
• High-performance Computing
• Parallel Algorithms

• Innovative Computing

• DaStGen - a C++ Data Structure Generator for HPC Software
• HPC Research at Durham's School of Engineering and Computing Sciences
• Peano - a PDE solver framework

• Programm Committee membership:
  • ISC High Performance (2018)
  • PASC (2016,2017)
  • PARCO (2013)
  • ISPDC (2012-2018)
• Stop Talking to Me - Some Communication-avoiding Programming Patterns: Invited keynote talk PPAM 2019
• Visiting Researcher: Technische Universitaet Muenchen (TUM; 2014-2020) and KU Leuven (2012)
• Workshop organiser: ISC HPC 2016: Form Follows Function - Do algorithms and applications challenge or drag behind the hardware evolution?: See summary (https://arxiv.org/abs/1607.02835) which has been discussedf by several international newspages such as HPC Wire.
• Workshop organiser: ISC HPC 2018: The power of Lo(o)sing Control - When does a re-implementation of mature simulation fragments with HPC DSLs pay off?:

Authored book

• Weinzierl, Tobias (2016). Multiscale Storage, Parallelisation and Programming Paradigms for Spacetrees in Scientific Computing. München: Technischen Universität München.
• Bader, Michael, Bungartz, Hans-Joachim & Weinzierl, Tobias (2013). Advanced Computing. Heidelberg, Berlin: Springer-Verlag.
• Weinzierl, Tobias (2009). A Framework for Parallel PDE Solvers on Multiscale Adaptive Cartesian Grids. München: Verlag Dr. Hut.

Chapter in book

• Bader, Michael & Weinzierl, Tobias (2015). Cache-Oblivious Spacetree Traversals. In Encyclopedia of Algorithms. Kao, Ming-Yang Springer. 1-6.
• Weinzierl, T., Neumann, P., Unterweger, K., Verleye, B. & Wittmann, R. (2014). PaTriG – Particle Transport Simulation in Grids. In High Performance Computing in Science and Engineering 2014. Wagner, S., Bode, A., Satzger, H. & Brehm, M. Bayerische Akademie der Wissenschaften. 128-129.

Conference Paper

• Schulz, Holger, Brito Gadeschi, Gonzalo, Rudyy, Oleksandr & Weinzierl, Tobias (2021), Task inefficiency patterns for a wave equation solver, IWOMP 2021. Bristol.
• Samfass, Philipp, Weinzierl, Tobias, Reinarz, Anne & Bader, Michael (2021), Doubt and Redundancy Kill Soft Errors---Towards Detection and Correction of Silent Data Corruption in Task-based Numerical Software, Supercomputing 21 - FTXS Workshop. St Louis.
• Samfass, Philipp, Weinzierl, Tobias, Hazelwood, Benjamin & Bader, Michael (2020), teaMPI---replication-based resiliency without the (performance) pain, in Sadayappan, Ponnuswamy, Chamberlain, Bradford L., Juckeland, Guido & Ltaief, Hatem eds, Lecture Notes in Computer Science 12151: ISC High Performance. Frankfurt, Springer, 455-473.
• Murray, Charles & Weinzierl, Tobias (2019), Lazy Stencil Integration in multigrid algorithms, 13th INTERNATIONAL CONFERENCE ON PARALLEL PROCESSING AND APPLIED MATHEMATICS. Bialystok, Poland.
• Rannabauer, L., Haas, S., Charrier, D.E., Weinzierl, T. & Bader, M. (2018), Simulation of tsunamis with the exascale hyperbolic PDE engine ExaHyPE, Environmental Informatics: Techniques and Trends. Adjunct Proceedings of the 32nd edition of the EnviroInfo.
• Krestenitis, Konstantinos, Weinzierl, Tobias & Koziara, Tomasz (2018), Fast DEM collision checks on multicore nodes, in Wyrzykowski, Roman, Dongarra, J. J., Deelman, Ewa & Karczewski, Konrad eds, Lecture Notes in Computer Science, 10777 12th International Conference on Parallel Processing and Applied Mathematics (PPAM) 2017. Lublin, Poland, Springer, Cham, 123-132.
• Charrier, Dominic E. & Weinzierl, Tobias (2018), An experience report on (auto-)tuning of mesh-based PDE solvers on shared memory systems, in Wyrzykowski, Roman, Dongarra, J. J., Deelman, Ewa & Karczewski, Konrad eds, Lecture Notes in Computer Science, 10777 PPAM 2017. Lublin, Poland, Springer, Cham, 3-13.
• Schreiber, Martin & Weinzierl, Tobias (2018), A Case Study for a New Invasive Extension of Intel's Threading Building Blocks, in Weidendorfer, Josef & Trinitis, Carsten eds, HiPEAC 2018 — 3rd COSH Workshop on Co-Scheduling of HPC Applications. Manchester, England, Technische Universität München, München, 21-26.
• Krestenitis, Konstantinos, Weinzierl, Tobias & Koziara, Tomasz (2016), A Contact Detection Code using Triangles for Non-Spherical Particle Simulations, 24th Conference on Computational Mechanics (ACME-2016). Cardiff, UK, 227-230.
• Eckhardt, W., Glas, R., Korzh, D., Wallner, S. & Weinzierl, T. (2016), On-the-fly memory compression for multibody algorithms, in Joubert, G.R., Leather, H., Parsons, M., Peters, F. & Sawyer, M. eds, Advances in Parallel Computing 27: International Conference on Parallel Computing (ParCo) 2015. Edinburgh, Scotland, IOS Press, Amsterdam, 421-430.
• Unterweger, K., Wittmann, R., Neumann, P., Weinzierl, T. & Bungartz, H.-J. (2015), Integration of FULLSWOF2D and PeanoClaw: Adaptivity and Local Time-stepping for Complex Overland Flows, in Mehl, M., Bischoff, M. & Schäfer, M. eds, Lecture notes in computational science and engineering, 105 Part II: 3rd International Workshop on Computational Engineering CE 2014. Stuttgart, Germany, Springer, Stuttgart, 181-195.
• Weinzierl, Tobias, Wittmann, Roland, Unterweger, Kristof, Bader, Michael, Breuer, Alexander & Rettenberger, Sebastian (2014), Hardware-aware block size tailoring on adaptive spacetree grids for shallow water waves, in Größlinger, Armin & Köstler, Harald eds, HiPEAC HiStencils 2014 - 1st International Workshop on High-Performance Stencil Computations. Vienna, Austria, Vienna.
• Johnson, C., Carter, A., Bethune, I., Statford, K., Alava, M., Cardoso, V., Asif, M., Schuberth, B. & Weinzierl, Tobias (2013), PRACE DECI (Distributed European Computing Initiative) Minisymposium, in Manninen, P. & Öster, P. eds, Lecture Notes in Computer Science 7782: PARA 2012, EPCC, Department of Physics and Astronomy, The University of Edinburgh. Springer, 43-60.
• Atanasov, Atanas, Bungartz, Hans-Joachim, Unterweger, Kristof, Weinzierl, Tobias & Wittmann, Roland (2013), A Case Study on Multi-Component Multi-Cluster Interaction with an AMR Solver, WOLFHPC 2013: Third International Workshop on Domain-Specific Languages and High-Level Frameworks for High Performance Computing held in conjunction with SC 2013 Technische Universität München, Department of Informatics.
• Schreiber, Martin, Weinzierl, Tobias & Bungartz, Hans-Joachim (2013), Cluster Optimization and Parallelization of Simulations with Dynamically Adaptive Grids, in Wolf, F., Mohr, B. & an Mey, D. eds, Lecture Notes in Computer Science 8097: Euro-Par 2013. Aachen, Springer-Verlag, Aachen, 484-496.
• Schreiber, Martin, Weinzierl, Tobias & Bungartz, Hans-Joachim (2013), SFC-based Communication Metadata Encoding for Adaptive Mesh, in Bader, Michael, Bode, Arndt, Bungartz, Hans-Joachim, Gerndt, Michael, Joubert, G.R. & Peters, F. eds, Advances in Parallel Computing 25: Proceedings of the International Conference on Parallel Computing (ParCo). IOS Press, 233-242.
• Nogina, Svetlana, Unterweger, Kristof & Weinzierl, Tobias (2012), Autotuning of Adaptive Mesh Refinement PDE Solvers on Shared Memory Architectures, in Wyrzykowski, Roman, Dongarra, Jack, Karczewski, Konrad & Wasniewski, Jerzy eds, Lecture Notes in Computer Science 7203: PPAM 2011. Torun, Springer-Verlag, Torun, 671-680.
• Atanasov, Atanas, Srinivasan, Madhusudhanan & Weinzierl, Tobias (2012), Query-driven Parallel Exploration of Large Datasets, Large Data Analysis and Visualization (LDAV), 2012 IEEE Symposium on. 23 -30.
• Atanasov, Atanas & Weinzierl, Tobias (2011), Query-driven Multiscale Data Postprocessing in Computational Fluid Dynamics, in Sato, Mitsuhisa, Matsuoka, Satoshi, van Albada, G. Dick, Dongarra, Jack & Sloot, Peter M.A. eds, Procedia Computer Science 4: Proceedings of the International Conference on Computational Science, ICCS 2011. 332-341.
• Eckhardt, Wolfgang & Weinzierl, Tobias (2010), A Blocking Strategy on Multicore Architectures for Dynamically Adaptive PDE Solvers, in Wyrzykowski, Roman, Dongarra, Jack, Karczewski, Konrad & Wasniewski, Jerzy eds, Lecture Notes in Computer Science 6068: Parallel Processing and Applied Mathematics, PPAM 2009. Springer-Verlag, 567--575.
• Küstner, Tilman, Weidendorfer, Josef & Weinzierl, Tobias (2010), Argument Controlled Context Profiling, in Hai-Xiang, Lin, Alexander, M., Forsell, M., Knüpfer, A., Prodan, R., Sousa, L. & Streit, A. eds, Lecture Notes in Computer Science 6043: Europar 2009, Parallel Processing - Workshops. Springer Verlag, Delft, 177-184.
• Gatzhammer, Bernhard, Mehl, Miriam & Weinzierl, Tobias (2009), A Coupling Tool for the Partitioned Simulation of Fluid-Structure Interactions, in Kvamsdal, T., Pettersen, B., Bergan, P., Onate, E. & Garcia, J. eds, 3: Computational Methods in Marine Engineering International Center for Numerical Methods in Engineering (CIMNE). Trondheim, CIMNE, Trondheim, 147-150.
• Mehl, Miriam, Brenk, Markus, Muntean, Ioan Lucian, Neckel, Tobias & Weinzierl, Tobias (2008), A Modular and Efficient Simulation Environment for Fluid-Structure Interactions with Large Domain Deformation, in Papadrakakis, M. & Topping, B. H. V. eds, Proceedings of the Sixth International Conference on Engineering Computational Technology, Athens, September 2008. Kippen, Stirlingshire, United Kingdom, Civil-Comp Press, Kippen, Stirling.
• Bungartz, Hans-Joachim, Mehl, Miriam, Weinzierl, Tobias & Eckhardt, Wolfgang (2008), DaStGen - A Data Structure Generator for Parallel C++ HPC Software, in Bubak,, van Albada,, Sloot, & Dongarra, eds, Lecture Notes in Computer Science 5103: Springer-Verlag, Heidelberg, Berlin, 213-222.
• Muntean, Ioan Lucian, Mehl, Miriam, Neckel, Tobias & Weinzierl, Tobias (2008), Concepts for Efficient Flow Solvers Based on Adaptive Cartesian Grids, in Wagner, Siegfried, Steinmetz, Matthias, Bode, Arndt & Brehm, Matthias eds, Springer, Berlin Heidelberg New York.
• Mehl, Miriam, Neckel, Tobias & Weinzierl, Tobias (2008), Concepts for the Efficient Implementation of Domain Decomposition Approaches for Fluid-Structure Interactions, in Langer, U., Discacciati, M., Keyes, D.E., Widlund, O.B. & Zulehner, W. eds, Lecture Notes in Science an Enginnering 60: Springer, Berlin Heidelberg New York, 591-598.
• Mehl, Miriam, Brenk, Markus, Muntean, Ioan Lucian, Neckel, Tobias & Weinzierl, Tobias (2007), Benefits of Structured Cartesian Gris for the Simulation of Fluid-Structure Interactions, in Yagawa, G., Iu, V.P., Kashiyama, K., Miyazaki, N., Arantes e Oliveira, E., Valliappan, S., Yabe, T., Yuan, M.W. & Yoshimura, S. eds, Proceedings of the Third Asian-Pacific Congress on Computational Mechanics, APCOM 07. Kyoto, Japan, Kyoto.
• Brenk, Markus, Bungartz, Hans-Joachim, Mehl, Miriam, Muntean, Ioan Lucian, Neckel, Tobias & Weinzierl, Tobias (2007), A coupling environment for fluid-structure interactions on Cartesian grids, in Bergan, P., Garcia, J., Onate, E. & Kvamsdal, T. eds, International Conference on Computational Methods in Marine Engineering International Center for Numerical Methods in Engineering (CIMNE). Barcelona, Barcelona.
• Bungartz, Hans-Joachim, Mehl, Miriam & Weinzierl, Tobias (2006), A Parallel Adaptive Cartesian PDE Solver Using Space-Filling Curves, in Nagel, Wolfgang E., Walter, Wolfgang V. & Lehner, Wolfgang eds, LNCS 4128: Springer-Verlag, Berlin, Heidelberg, 1064-1074.
• Langlotz, Markus, Mehl, Miriam, Weinzierl, Tobias & Zenger, Christoph (2005), SkvG: Cache-Optimal Parallel Solution of PDEs on High Performance Computers Using Space-Trees and Space-Filling Curves, in Bode, A. & Durst, F. eds, Springer-Verlag, Berlin Heidelberg New York, 71-82.

Journal Article

• Murray, Charles D. & Weinzierl, Tobias (2021). Stabilized Asynchronous Fast Adaptive Composite Multigrid using Additive Damping. Numerical Linear Algebra with Applications 28(3): e2328.
• Murray, Charles D. & Weinzierl, Tobias (2021). Delayed approximate matrix assembly in multigrid with dynamic precisions. Concurrency and Computation: Practice and Experience 33(11): e5941.
• Samfass, Philipp, Weinzierl, Tobias, Charrier, Dominic E. & Bader, Michael (2020). Lightweight Task Offloading Exploiting MPI Wait Times for Parallel Adaptive Mesh Refinement. Concurrency and Computation: Practice and Experience 32(24): e5916.
• Charrier, Dominic E. Hazelwood, Benjamin & Weinzierl, Tobias (2020). Enclave Tasking for DG Methods on Dynamically Adaptive Meshes. SIAM Journal on Scientific Computing (SISC) 42(3): C69-C96.
• Reinarz, Anne, Charrier, Dominic E., Bader, Michael, Bovard, Luke, Dumbser, Michael, Duru, Kenneth, Fambri, Francesco, Gabriel, Alice-Agnes, Gallard, Jean-Matthieu, Köppel, Sven, Krenz, Lukas, Rannabauer, Leonhard, Rezzolla, Luciano, Samfass, Philipp, Tavelli, Maurizio & Weinzierl, Tobias (2020). ExaHyPE: An engine for parallel dynamically adaptive simulations of wave problems. Computer Physics Communications 254: 107251.
• Weinzierl, Tobias (2019). The Peano software---parallel, automaton-based, dynamically adaptive grid traversals. ACM Transactions on Mathematical Software 45(2): 14.
• Charrier, D.E., Hazelwood, B., Tutlyaeva, E., Bader, M., Dumbser, M., Kudryavtsev, A., Moskovsky, A. & Weinzierl, T. (2019). Studies on the energy and deep memory behaviour of a cache-oblivious, task-based hyperbolic PDE solver. International Journal of High Performance Computing Applications 33(5): 973-986.
• Tavelli, Maurizio, Dumbser, Michael, Charrier, Dominic E, Rannabauer, Leonhard, Weinzierl, Tobias & Bader, Michael (2019). A simple diffuse interface approach on adaptive Cartesian grids for the linear elastic wave equations with complex topography. Journal of Computational Physics 386: 158-189.
• Dumbser, Michael, Fambri, Francesco, Tavelli, Maruizio, Bader, Michael & Weinzierl, Tobias (2018). Efficient Implementation of ADER Discontinuous Galerkin Schemes for a Scalable Hyperbolic PDE Engine. Axioms 7(3): 63.
• Krestenitis, K. & Weinzierl, T. (2019). A Multi-Core Ready Discrete Element Method With Triangles Using Dynamically Adaptive Multiscale Grids. Concurrency and Computation: Practice and Experience 31(19): e4935.
• Weinzierl, Marion & Weinzierl, Tobias (2018). Quasi-matrix-free hybrid multigrid on dynamically adaptive Cartesian grids. ACM Transactions on Mathematical Software 44(3): 32, 32:1-32:44.
• Reps, Bram & Weinzierl, Tobias (2017). Complex additive geometric multilevel solvers for Helmholtz equations on spacetrees. ACM Transactions on Mathematical Software 44(1): 2.
• Weinzierl, T., Verleye, B., Henri, P. & Roose, D. (2016). Two Particle-in-Grid Realisations on Spacetrees. Parallel Computing 52: 42-64.
• Weinzierl, Tobias, Bader, Michael, Unterweger, Kristof & Wittmann, Roland (2014). Block Fusion on Dynamically Adaptive Spacetree Grids for Shallow Water Waves. Parallel Processing Letters 24(3): 1441006.
• Neumann, Philipp, Bungartz, Hans-Joachim, Mehl, Miriam, Neckel, Tobias & Weinzierl, Tobias (2012). A Coupled Approach for Fluid Dynamic Problems Using the PDE Framework Peano. Communications in Computational Physics 12(1): 65-84.
• Weinzierl, Tobias & Köppl, Tobias (2012). A Geometric Space-time Multigrid Algorithm for the Heat Equation. Numerical Mathematics: Theory, Methods and Applications 5(1): 110-130.
• Weinzierl, Tobias & Mehl, Miriam (2011). Peano - A Traversal and Storage Scheme for Octree-Like Adaptive Cartesian Multiscale Grids. SIAM Journal on Scientific Computing 33(5): 2732-2760.
• Bungartz, Hans-Joachim, Mehl, Miriam, Neckel, Tobias & Weinzierl, Tobias (2010). The PDE framework Peano applied to fluid dynamics: an efficient implementation of a parallel multiscale fluid dynamics solver on octree-like adaptive Cartesian grids. Computational Mechanics 46(1): 103-114.
• Huckle, Thomas, Kallischko, Alexander, Roy, Andreas, Sedlacek, Matous & Weinzierl, Tobias (2010). An Efficient Parallel Implementation of the MSPAI Preconditioner. Parallel Computing 36(5-6): 273-284.
• Bungartz, Hans-Joachim, Eckhardt, Wolfgang, Weinzierl, Tobias & Zenger, Christoph (2010). A Precompiler to Reduce the Memory Footprint of Multiscale PDE Solvers in C++. Future Generation Computer Systems 26(1): 175-182.
• Brenk, Markus, Bungartz, Hans-Joachim, Mehl, Miriam, Muntean, Ioan Lucian, Neckel, Tobias & Weinzierl, Tobias (2008). Numerical Simulation of Particle Transport in a Drift Ratchet. SIAM Journal of Scientific Computing 30(6): 2777-2798.
• Mehl, Miriam, Weinzierl, Tobias & Zenger, Christoph (2006). A cache-oblivious self-adaptive full multigrid method. Numerical Linear Algebra with Applications 13(2-3): 275-291.

Masters Thesis

• Weinzierl, Tobias (2005). Eine cache-optimale Implementierung eines Navier-Stokes Lösers unter besonderer Berücksichtigung physikalischer Erhaltungssätze. Fakultät für Informatik, Technische Universität München Fakultät für Informatik, Technische Universität München. Masters.
• Angermair, Gerald, Maier, Sonja & Weinzierl, Tobias (2003). Ein Maple-Java-Compiler für eine objektorientierte Maple-Erweiterung. Fakultät für Informatik, Technische Universität München Fakultät für Informatik, Technische Universität München. Masters.

Newspaper/Magazine Article

• Weinzierl, Tobias (Accepted). HPC Coding: The Power of L(o)osing Control. HPC Wire
• Weinzierl, Tobias (2016), Form Follows Function - Do algorithms and applications challenge or drag behind the hardware evolution?, ISC High Performance 2016. Frankfurt am Main, ISC Group.

Presentation

• Bader, M. & Weinzierl, T. (2014), Adaptivity - and Regular Cartesian Patches for the Shallow Water Equations and Vectorisation of an Augmented Riemann Solver for the Shallow Water Equations, SIAM Annual Meeting. Chicago, IL, SIAM.

Report

• Atanasov, Atanas, Bungartz, Hans-Joachim & Weinzierl, Tobias (2013). A Toolkit for the Code Development in Advanced Computing.
• Unterweger, Kristof, Weinzierl, Tobias, Ketcheson, David & Ahmadia, Aron (2013). PeanoClaw - A Functionally-Decomposed Approach to Adaptive Mesh Refinement with Local Time Stepping for Hyperbolic Conservation Law Solvers.
• Jarema, Denis, Neumann, Philipp & Weinzierl, Tobias (2012). A Multiscale Approach for Particle Transport Simulation in Low Reynolds Number Flows.