Publications

Papers


  • Müller, A., M.A. Kopera, S. Marras, L.C. Wilcox, T. Isaac, F.X. Giraldo (2015): “Strong scaling for numerical weather prediction at petascale with the atmospheric model NUMA”, (submitted to 30th IEEE International Parallel & Distributed Processing Symposium 2016), pre-print
  • Marras, S., J.F. Kelly, M. Moragues, A. Müller, M.A. Kopera, M. Vázquez, F.X. Giraldo, G. Houseaux, O. Jorba (2015): “A review of element-based Galerkin methods for numerical weather prediction. Finite elements, spectral elements, and discontinuous Galerkin”, Archives of Computational Methods in Engineering 04/2015. DOI:10.1007/s11831-015-9152-1. pre-print
  • Müller, A., and F.X. Giraldo (2015): “Towards numerical weather prediction at exascale with the dynamical core NUMA”, (in preparation)
  • Yelash, L., A. Müller, M. Lukacova-Medvidova, F.X. Giraldo, and V. Wirth (2014): “Adaptive discontinuous evolution Galerkin method for dry atmospheric flow”, Journal of Computational Physics. 268C (2014) 106 – 133.
  • Marras, S., A. Müller, and F. X. Giraldo (2014): “Physics-based stabilization of spectral elements for the 3D Euler equations of moist atmospheric convection”, Proceedings of ICOSAHOM 2014, Salt Lake City, UT, USA
  • Marras, S., A. Müller, and F.X. Giraldo (2014): “An LES-like stabilization of the spectral element solution of the Euler equations for atmospheric flows”, Proceedings of the VI European Conference on Computational Fluid Dynamics ECCOMAS
  • Müller, A., J. Behrens, F. X. Giraldo, and V. Wirth (2013): “Comparison between adaptive and uniform discontinuous Galerkin simulations in dry 2D bubble experiments”, Journal of Computational Physics. 235 (2013) 371 – 393.
  • Müller, A. (2012): “Untersuchungen zur Genauigkeit adaptiver unstetiger Galerkin-Simulationen mit Hilfe von Luftblasen-Testfällen”, Ph.D. thesis (german pdf: http://ubm.opus.hbz-nrw.de/volltexte/2012/3168/)
  • Müller, A., J. Behrens, F. X. Giraldo, V. Wirth (2010): “An adaptive discontinuous Galerkin model for modeling cumulus clouds”, Proceedings of the V European Conference on Computational Fluid Dynamics ECCOMAS CFD 2010, ISBN: 978-989-96778-1-4
  • Müller, A. and V. Wirth (2009): “Resolution dependence of the tropopause inversion layer in an idealized model for upper tropospheric anticyclones”, Journal of the Atmospheric Sciences, Vol. 66, No. 11, pp. 3491–3497.

Presentations


  • Müller, A., D. S. Abdi, M. Kopera, L. Wilcox, and F. X. Giraldo: “Towards operational weather prediction at 3.0km global resolution with the dynamical core NUMA”, Workshop on the Solution of Partial Differential Equations on the Sphere, KIAPS, Seoul, South Korea (2015)
  • Müller, A., M. Kopera, S. Marras, and F. X. Giraldo: “Parallel performance of the atmospheric model NUMA using element-based Galerkin methods”, Institute for Numerical Simulation, University of Bonn, Germany (2015), invited talk
  • Müller, A., M. Kopera, and F. X. Giraldo: “Strong scaling on more than 700,000 cores with the atmospheric model NUMA”, Workshop Galerkin methods with applications in weather and climate forecasting, ICMS, Edinburgh, Scotland (2015)
  • Müller, A., M. Kopera, S. Marras, D. S. Abdi, and F. X. Giraldo: “Efficiency of high-order continuous and discontinuous Galerkin methods”, German Weather Service DWD, Offenbach, Germany (2014), invited talk
  • Müller, A.: “Challenges and opportunities of upcoming supercomputers for NWP”, Institute for Atmospheric Physics, University of Mainz, Germany (2014), invited talk
  • Müller, A., M. Kopera, S. Marras, and F. X. Giraldo: “Does high order and dynamic adaptive mesh refinement improve the efficiency of atmospheric simulations?” Coupling physics and dynamics workshop, CICESE, Ensenada, Mexico (2014)
  • Müller, A., M. Kopera, S. Marras, and F.X. Giraldo: “Do high order and dynamic adaptive mesh refinement improve the efficiency of atmospheric simulations?”, World Weather Open Science Conference, Montreal, Canada (2014)
  • Müller, A., M. Kopera, S. Marras, and F.X. Giraldo: “Comparison of adaptive and uniform 2D Galerkin simulations”, Workshop on the Solution of Partial Differential Equations on the Sphere, National Center for Atmospheric Research, Boulder, Colorado, USA (2014)
  • Müller, A.: “Computational and numerical challenges in weather prediction”, INVASIC seminar, Munich, Germany (2013), invited talk
  • Müller, A., M. Kopera, and F.X. Giraldo: “Comparison of adaptive and uniform DG simulations”, SIAM Geoscience Meeting, Padova, Italy (2013)
  • Müller, A., J. Behrens, F. X. Giraldo and V. Wirth: “Accuracy of adaptive discontinuous Galerkin methods”, Workshop on the Solution of Partial Differential Equations on the Sphere, Isaac Newton Institute for Mathematical Sciences, Cambridge, UK (2012) movie of the presentation
  • Müller, A.: “Are adaptive simulations more accurate than uniform simulations?”, Workshop Adaptive Multiscale Methods for the Atmosphere and Ocean, Isaac Newton Institute for Mathematical Sciences, Cambridge, UK (2012) movie of the presentation
  • Müller, A.: “Testing refinement criteria in adaptive Discontinuous Galerkin simulations of dry atmospheric convection”, Seminar Scientific Computing , Hamburg, Germany (2012), invited talk.
  • Müller, A., J. Behrens, F. X. Giraldo and V. Wirth: “An adaptive discontinuous Galerkin model for the 2D, compressible Navier-Stokes equations”, SIAM Conference on Mathematical & Computational Issues in the Geosciences, Long Beach, USA (2011)
  • Müller, A., J. Behrens, F. X. Giraldo, O. Kunst, V. Wirth and G. Wolf: “An adaptive discontinuous Galerkin method for modelling moist convective updrafts”, International MetStröm Conference, Berlin, Germany (2011)
  • Müller, A., J. Behrens, F. X. Giraldo and V. Wirth: “An adaptive discontinuous Galerkin for the 2D, compressible Navier-Stokes equations”, Workshop on the Solution of Partial Differential Equations on the Sphere, Potsdam, Germany (2010)
  • Müller, A., J. Behrens, F. X. Giraldo and V. Wirth: “An adaptive discontinuous Galerkin for modeling cumulus clouds”, Mathematical Theory and Modelling in Atmosphere-Ocean-Science, MFO Oberwolfach, Germany (2010)
  • Müller, A., J. Behrens, F. X. Giraldo and V. Wirth: “An adaptive discontinuous Galerkin for modeling cumulus clouds”, V European Conference on Computational Fluid Dynamics ECCOMAS CFD, Lisbon, Portugal (2010)
  • Müller, A.: “Adaptive disctoninuous Galerkin methods – An introduction with application to cloud modling”, Theorie-Seminar Frankfurt, Germany (2010), invited talk.
  • Müller, A.: “Application of Discontinuous Galerkin methods to adaptive modeling of atmospheric dry convection”, Hirschegg-Workshop, Austria (2009)
  • Müller, A., J. Behrens and V. Wirth: “Adaptive numerical modeling of atmospheric moist convection”, Workshop Multi-scale Modelling of the Atmosphere and  Ocean, Reading, UK (2009), Poster
  • Müller, A. and V. Wirth: “Die Tropopauseninversionsschicht in einem hochaufgelösten balancierten Modell”, DACH 2007, Hamburg, Germany (extended abstract in german: pdf)

current address

Dr. Andreas Müller
Scientist
European Centre for Medium-
Range Weather Forecasts (ECMWF)
Research Department
Shinfield Park
Reading, Berkshire, RG2 9AX, UK
email: mail@anmr.de

about me

I am working as a scientist at the European Centre for Medium-Range Weather Forecasts (ECMWF) on developing energy efficient scalable numerical methods towards weather prediction on exascale supercomputers. On this website you can find some of my results and some of my teaching material which I developed for lectures given in the past years.