Dr. Matthias Petschow

Dr. Matthias Petschow

Advisor / Co. Advisor

Prof. Bientinesi / Prof. Grasedyck

Dissertation

MRRR-Based Eigensolvers for Multi-Core Processors and Supercomputers

Contact

Matthias Petschow
Aachen Institute for Advanced Study
in Computational Engineering Science (AICES)
RWTH Aachen
Schinkelstr. 2
52056 Aachen

Tel.: (0241) 80 99 142
Fax: (0241) 80 628498
Email: petschow (AT) aices (DOT) rwth-aachen (DOT) de

Education

  • 2009 - 2013
    Postgraduate position at Aachen Institute for Advanced Study in Computational Engineering Science (AICES), RWTH Aachen.
  • 2004 - 2008
    Diploma of Mechanical Enginneering from University Stuttgart.

Professional Career

  • 03/2007 - 11/2007 Internship at Physical Optics Corporation, Los Angeles, CA, USA.

Research Interests

Numerical Linear Algebra, Computational Physics.

Publications

MRRR-Based Eigensolvers for Multi-Core Processors and Supercomputers

Matthias Petschow.
Dissertation, RWTH Aachen, Germany. [Preprint]

Improved Accuracy and Parallelism for MRRR-based Eigensolvers - A Mixed Precision Approach

Matthias Petschow, Enrique S. Quintana-Orti, and Paolo Bientinesi.Submitted. [Preprint]

Improved Orthogonality for Dense Hermitian Eigensolvers based on the MRRR algorithm

Matthias Petschow, Enrique S. Quintana-Orti, and Paolo Bientinesi. AICES technical report. [Preprint]

High-Performance Solvers for Dense Hermitian Eigenproblems.

Matthias Petschow, Elmar Peise, and Paolo Bientinesi.
SIAM Journal on Scientific Computing, Volume 35(1), pp. C1-C22, 2013. [Preprint] [Article]

MR3-SMP: A Symmetric Tridiagonal Eigensolver for Multi-Core Architectures.

Matthias Petschow and Paolo Bientinesi.
Parallel Computing. [Preprint] [Article]

The Algorithm of Multiple Relatively Robust Representations for Multi-Core Processors.

Matthias Petschow and Paolo Bientinesi.
PARA 2010, LNCS 7133 (2012). [Preprint] [Article]

Condensed Forms for the Symmetric Eigenvalue Problem on Multi-threaded Architectures.

Paolo Bientinesi, Francisco Igual, Daniel Kressner, Matthias Petschow and Enrique Quintana-Orti.
Concurrency and Computation: Practice and Experience. [Preprint] [Article]

An Example of Symmetry Exploitation for Energy-related Eigencomputations.

Matthias Petschow, Edoardo Di Napoli and Paolo Bientinesi.
7th International Conference of Computational Methods in Sciences and Engineering (ICCMSE'09). [Preprint]

Effects of Pupil Discretization and Littrow Illumination in Simulation of Bright Field Defect Detection.

S. Rafler, M. Petschow, U. Seifert, K. Frenner, J. Goeckeritz, W. Osten.
Optics Letters, Vol. 34, Issue 12.

Differential method for arbitrary anisotropic periodic media.

M. Petschow.
Diploma thesis, 2008. [Preprint]

Investigation of methods to set up the normal vector field for the differential method.

S. Rafler, P. Goetz, M. Petschow, T. Schuster, K. Frenner, W. Osten.
Proc. SPIE, Vol. 6995, 2008.

Talks

International Workshop on Parallel Matrix Algorithms and Applications (PMAA 2012)

June 28 - 30, 2010, University of London, England.

International Linear Algebra Society Conference (ILAS 2011)

August 22 - 26, 2011, University of Braunschweig, Germany

International Workshop on Parallel Matrix Algorithms and Applications (PMAA 2010)

June 29 - July 02, 2010, University of Basel, Switzerland.

International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2009)

September 18 - 22, 2009, Rethymno, Crete, Greece.

Software

  • MR3-SMP: A Symmetric Tridiagonal Eigensolver for Multi-Core Architectures. [Source Code]
  • PMRRR: A Symmetric Tridiagonal Eigensolver for Distributed-Memory Architectures. [Source Code]
  • Elemental: A Framework for Distributed-Memory Linear Algebra. [Source Code]

More information

HPAC group [Website]