Dr. Michael Kuhn

michaelkuhn.jpg

E-mailmichael.kuhn@informatik.uni-hamburg.de
Telephone+49 40 460094-108
AddressDKRZ, room 117.1

Biography

Michael Kuhn is a postdoctoral researcher in the Scientific Computing group at Universität Hamburg, where he also received his doctoral degree in computer science in 2015. He conducts research in the area of high performance I/O with a special focus on I/O interfaces and data reduction techniques. Other interests of his include file systems and high performance computing in general.

Projects

Theses

Teaching

Sommersemester 2017

Wintersemester 2016/2017

Sommersemester 2016

Wintersemester 2015/2016

Sommersemester 2015

Wintersemester 2014/2015

Sommersemester 2014

Wintersemester 2013/2014

Sommersemester 2013

Wintersemester 2012/2013

Sommersemester 2012

Wintersemester 2011/2012

Sommersemester 2011

Wintersemester 2010/2011

Sommersemester 2010

Wintersemester 2009/2010

Publications

2016

  • Analyzing the energy consumption of the storage data path (Pablo Llopis, Manuel F. Dolz, Javier Garcia Blas, Florin Isaila, Mohammad Reza Heidari, Michael Kuhn), In The Journal of Supercomputing, Series: Number 11227, pp. 1–18, (Editors: Hamid Arabnia), Springer US, ISSN: 0920-8542, 2016
    BibTeX DOI

2015

  • ArduPower: A low-cost wattmeter to improve energy efficiency of HPC applications (Manuel F. Dolz, Mohammad Reza Heidari, Michael Kuhn, Thomas Ludwig, Germán Fabregat), In Sixth International Green Computing Conference and Sustainable Computing Conference (IGSC) 2015, pp. 1–8, IEEE, IGSC 2015, Las Vegas, USA, 2015-12
    BibTeX DOI
  • MPI-Checker - Static Analysis for MPI (Alexander Droste, Michael Kuhn, Thomas Ludwig), In Proceedings of the Second Workshop on the LLVM Compiler Infrastructure in HPC, LLVM '15, ACM (New York, USA), SC15, Austin, Texas, USA, ISBN: 978-1-4503-4005-2, 2015-11
    BibTeX URL DOI
  • Analyzing Power Consumption of I/O Operations in HPC Applications (Pablo Llopis, Manuel F. Dolz, Javier García-Blas, Florin Isaila, Jesús Carretero, Mohammad Reza Heidari, Michael Kuhn), In Proceedings of the Second International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2015), pp. 107–116, (Editors: Jesus Carretero, Javier Garcia Blas, Roman Wyrzykowski, Emmanuel Jeannot), Computer Architecture, Communications and Systems Group (ARCOS) (Madrid, Spain), NESUS 2015, Jesus Carretero, Krakow, Poland, ISBN: 978-84-608-2581-4, 2015-10
    BibTeX URL
  • Dynamically Adaptable I/O Semantics for High Performance Computing (Michael Kuhn), In High Performance Computing, Lecture Notes in Computer Science (9137), pp. 240–256, (Editors: Julian Martin Kunkel, Thomas Ludwig), Springer International Publishing (Switzerland), ISC 2015, Frankfurt, Germany, ISBN: 978-3-319-20118-4, ISSN: 0302-9743, 2015-06
    BibTeX DOI
  • A Best Practice Analysis of HDF5 and NetCDF-4 Using Lustre (Christopher Bartz, Konstantinos Chasapis, Michael Kuhn, Petra Nerge, Thomas Ludwig), In High Performance Computing, Lecture Notes in Computer Science (9137), pp. 274–281, (Editors: Julian Martin Kunkel, Thomas Ludwig), Springer International Publishing (Switzerland), ISC 2015, Frankfurt, Germany, ISBN: 978-3-319-20118-4, ISSN: 0302-9743, 2015-06
    BibTeX DOI
  • Big Data Research at DKRZ – Climate Model Data Production Workflow (Michael Lautenschlager, Panagiotis Adamidis, Michael Kuhn), In Big Data and High Performance Computing (Lucio Grandinetti, Gerhard Joubert, Marcel Kunze, Valerio Pascucci), Series: Advances in Parallel Computing, Edition: 26, pp. 133–155, IOS Press, ISBN: 978-1-61499-582-1, 2015
    BibTeX URL DOI

2014

  • Compression By Default - Reducing Total Cost of Ownership of Storage Systems (Michael Kuhn, Konstantinos Chasapis, Manuel Dolz, Thomas Ludwig), In Supercomputing, Lecture Notes in Computer Science (8488), (Editors: Julian Martin Kunkel, Thomas Ludwig, Hans Werner Meuer), Springer International Publishing (Berlin, Heidelberg), ISC 2014, Leipzig, Germany, ISBN: 978-3-319-07517-4, ISSN: 0302-9743, 2014-06
    BibTeX DOI
  • Evaluating Power-Performace Benefits of Data Compression in HPC Storage Servers (Konstantinos Chasapis, Manuel Dolz, Michael Kuhn, Thomas Ludwig), In IARIA Conference, pp. 29–34, (Editors: Steffen Fries, Petre Dini), IARIA XPS Press, ENERGY 2014, Chamonix, France, ISBN: 978-1-61208-332-2, ISSN: 2308-412X, 2014-04-20 – Awards: Best Paper
    BibTeX
  • Evaluating Lustre's Metadata Server on a Multi-socket Platform (Konstantinos Chasapis, Manuel Dolz, Michael Kuhn, Thomas Ludwig), In Proceedings of the 9th Parallel Data Storage Workshop, PDSW (2014), pp. 13–18, IEEE Press (Piscataway, NJ, USA), SC14, New Orleans, Louisiana, ISBN: 978-1-4799-7025-4, 2014
    BibTeX DOI

2013

  • A Semantics-Aware I/O Interface for High Performance Computing (Michael Kuhn), In Supercomputing, Lecture Notes in Computer Science (7905), pp. 408–421, (Editors: Julian Martin Kunkel, Thomas Ludwig, Hans Werner Meuer), Springer (Berlin, Heidelberg), ISC 2013, Leipzig, Germany, ISBN: 978-3-642-38749-4, ISSN: 0302-9743, 2013-06
    BibTeX DOI

2012

  • A Study on Data Deduplication in HPC Storage Systems (Dirk Meister, Jürgen Kaiser, Andre Brinkmann, Michael Kuhn, Julian Kunkel, Toni Cortes), In Proceedings of the ACM/IEEE Conference on High Performance Computing (SC), IEEE Computer Society, SC'12, Salt Lake City, USA, 2012-11-10
    BibTeX
  • Optimizations for Two-Phase Collective I/O (Michael Kuhn, Julian Kunkel, Yuichi Tsujita, Hidetaka Muguruma, Thomas Ludwig), In Applications, Tools and Techniques on the Road to Exascale Computing, Advances in Parallel Computing (22), pp. 455–462, (Editors: Koen De Bosschere, Erik H. D'Hollander, Gerhard R. Joubert, David Padua, Frans Peters), IOS Press (Amsterdam, Berlin, Tokyo, Washington DC), ParCo 2011, University of Ghent, ELIS Department, Ghent, Belgium, ISBN: 978-1-61499-040-6, ISSN: 0927-5452, 2012
    BibTeX
  • Evaluating the Influence of File System Interfaces and Semantics on I/O Throughput in High Performance Computing (Christina Janssen, Michael Kuhn, Thomas Ludwig), In Proceedings of the Work in Progress Session, 20th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, SEA-Publications (31), (Editors: Erwin Grosspietsch, Konrad Klöckner), Institute for Systems Engineering and Automation (Johannes Kepler University Linz), PDP 2012, Munich Network Management Team, Garching, Germany, ISBN: 978-3-902457-31-8, 2012
    BibTeX
  • Simulation-Aided Performance Evaluation of Server-Side Input/Output Optimizations (Michael Kuhn, Julian Kunkel, Thomas Ludwig), In 20th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, pp. 562–566, (Editors: Rainer Stotzka, Michael Schiffers, Yiannis Cotronis), IEEE Computer Society (Los Alamitos, Washington, Tokyo), PDP 2012, Munich Network Management Team, Garching, Germany, ISBN: 978-0-7695-4633-9, ISSN: 1066-6192, 2012
    BibTeX
  • Scientific Computing: Performance and Efficiency in Climate Models (Sandra Schröder, Michael Kuhn, Nathanael Hübbe, Julian Kunkel, Timo Minartz, Petra Nerge, Florens Wasserfall, Thomas Ludwig), In Proceedings of the Work in Progress Session, 20th Euromicro International Conference on Parallel, Distributed and Network-Based Processing, SEA-Publications (31), (Editors: Erwin Grosspietsch, Konrad Klöckner), Institute for Systems Engineering and Automation (Johannes Kepler University Linz), PDP 2012, Munich Network Management Team, Garching, Germany, ISBN: 978-3-902457-31-8, 2012
    BibTeX
  • Tool Environments to Measure Power Consumption and Computational Performance (Timo Minartz, Daniel Molka, Julian Kunkel, Michael Knobloch, Michael Kuhn, Thomas Ludwig), In Handbook of Energy-Aware and Green Computing (Ishfaq Ahmad, Sanjay Ranka), Chapters: 31, pp. 709–743, Chapman and Hall/CRC Press Taylor and Francis Group (6000 Broken Sound Parkway NW, Boca Raton, FL 33487), ISBN: 978-1-4398-5040-4, 2012
    BibTeX

2011

  • Towards an Energy-Aware Scientific I/O Interface – Stretching the ADIOS Interface to Foster Performance Analysis and Energy Awareness (Julian Kunkel, Timo Minartz, Michael Kuhn, Thomas Ludwig), In Computer Science - Research and Development, Series: 1, (Editors: Thomas Ludwig), Springer (Berlin / Heidelberg, Germany), 2011
    BibTeX DOI

2010

2009

  • Dynamic file system semantics to enable metadata optimizations in PVFS (Michael Kuhn, Julian Kunkel, Thomas Ludwig), In Concurrency and Computation: Practice and Experience, Series: 21-14, pp. 1775–1788, John Wiley and Sons Ltd. (Chichester, UK), ISSN: 1532-0626, 2009
    BibTeX URL DOI

2008

  • Directory-Based Metadata Optimizations for Small Files in PVFS (Michael Kuhn, Julian Kunkel, Thomas Ludwig), In Euro-Par '08: Proceedings of the 14th international Euro-Par conference on Parallel Processing, pp. 90–99, Springer-Verlag (Berlin, Heidelberg), Euro-Par-08, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain, ISBN: 978-3-540-85450-0, 2008 – Awards: Best Paper
    BibTeX DOI

2007

  • Analysis of the MPI-IO Optimization Levels with the PIOViz Jumpshot Enhancement (Thomas Ludwig, Stephan Krempel, Michael Kuhn, Julian Kunkel, Christian Lohse), In Recent Advances in Parallel Virtual Machine and Message Passing Interface, Lecture Notes in Computer Science (4757), pp. 213–222, (Editors: Franck Cappello, Thomas Hérault, Jack Dongarra), Springer (Berlin / Heidelberg, Germany), EuroPVM/MPI-07, Institut national de recherche en informatique et automatique, Paris, France, ISBN: 978-3-540-75415-2, 2007
    BibTeX URL DOI

Talks

2016

2015

  • Exploiting Semantical Information for Performance Optimization and Data Reduction (Dr. Michael Kuhn), CluStor 2015, Hamburg, Germany, 2015-07-30
  • A Best Practice Analysis of HDF5 and NetCDF-4 Using Lustre (Dr. Michael Kuhn), ISC High Performance 2015, Frankfurt, Germany, 2015-07-15 Presentation
  • Dynamically Adaptable I/O Semantics for High Performance Computing (Dr. Michael Kuhn), ISC High Performance 2015, Frankfurt, Germany, 2015-07-14 Presentation
  • I/O Semantics for Future Storage Systems (Dr. Michael Kuhn), 14th HLRS/hww Workshop on Scalable Global Parallel File Systems, Stuttgart, Germany, 2015-04-29 Presentation

2014

  • Compression By Default – Reducing Total Cost of Ownership of Storage Systems (Dr. Michael Kuhn), International Supercomputing Conference 2014, Leipzig, Germany, 2014-06-23 Presentation
  • Exascale Storage Systems – An Analytical Study of Expenses (Dr. Michael Kuhn), CluStor 2014, Hamburg, Germany, 2014-06-19

2013

  • A Semantics-Aware I/O Interface for High Performance Computing (Dr. Michael Kuhn), International Supercomputing Conference 2013, Leipzig, Germany, 2013-06-18 Presentation

2012

  • A Semantics-Aware I/O Interface (Dr. Michael Kuhn), HPC Workshop, Leogang, Austria, 2012-02-29
  • Scientific Computing: Performance and Efficiency in Climate Models (Dr. Michael Kuhn), PDP 2012, Munich, Germany, 2012-02-17 Presentation
  • Evaluating the Influence of File System Interfaces and Semantics on I/O Throughput in High Performance Computing (Dr. Michael Kuhn), PDP 2012, Munich, Germany, 2012-02-17 Presentation
  • Simulation-Aided Performance Evaluation of Server-Side Input/Output Optimizations (Dr. Michael Kuhn), PDP 2012, Munich, Germany, 2012-02-16 Presentation

2011

2008

  • Directory-Based Metadata Optimizations for Small Files in PVFS (Dr. Michael Kuhn), Euro-Par 2008, Gran Canaria, Spain, 2008-08-29 Presentation

2006

  • File Systems for Mass Storage of Image Data in Bioinformatics (Dr. Michael Kuhn, Christian Lohse), CluStor 2006, Heidelberg, Germany, 2006-09-21

Supervised Theses

2016

2015

  • Advanced Data Transformation and Reduction Techniques in ADIOS, Tim Alexander Dobert (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, 2015-10-07, BibTeX
  • Static Code Analysis of MPI Schemas in C with LLVM, Alexander Droste (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, 2015-09-25, BibTeX
  • Evaluation of performance and productivity metrics of potential programming languages in the HPC environment, Florian Wilkens (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, Sandra Schröder, 2015-04-28, BibTeX
  • Adaptive Compression for the Zettabyte File System, Florian Ehmke (Master's Thesis), Advisors: Dr. Michael Kuhn, 2015-02-24, BibTeX

2014

2013

  • Design, Implementation, and Evaluation of a Low-Level Extent-Based Object Store, Sandra Schröder (Master's Thesis), Advisors: Dr. Michael Kuhn, 2013-12-18, BibTeX
  • Automated File System Correctness and Performance Regression Tests, Anna Fuchs (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, 2013-09-23, Thesis BibTeX URL
  • Evaluating Distributed Database Systems for Use in File Systems, Roman Michel (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, 2013-09-18, BibTeX
  • Evaluation of Different Storage Backends and Technologies for MongoDB, Johann Weging (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, 2013-02-28, BibTeX

2011

  • Evaluation of File Systems and I/O Optimization Techniques in High Performance Computing, Christina Janssen (Bachelor's Thesis), Advisors: Dr. Michael Kuhn, 2011-12-05, Thesis BibTeX URL