Since 2011, Dipl. Phys. Marc Wiedemann has been working on I/O analysis and optimization. He writes his thesis about cross-layer analysis and optimzation of input/output of high performance computing systems“. Currently, he is focussing on system-wide time and energy monitoring of parallel programs on application, middleware and kernel level. Mr. Wiedemann has reviewed papers for international conferences and took part in paper and poster sessions of the International Supercomputing Conference (ISC) from 2012 to 2015. Currently, he contributes to simultaneous faster, energy conserving runs of parallel I/O workflows in science.

• Analysis of parallel applications
• Analysis of system-wide parallel I/O
• Optimization of parallel application performance
• Parallel file systems
• Management of cluster systems
• Software engineering of scientific software
• Software configuration of hardware components
• Distributed object and file storage and persistance

• SIOX

• Monitoring energy consumption with SIOX (Julian Kunkel, Alvaro Aguilera, Nathanael Hübbe, Marc Wiedemann, Michaela Zimmer), In Computer Science – Research and Development, Series: Volume 30, Number 2, pp. 125–133, Springer, ISSN: 1865-2034, 2015-05
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• A Comparison of Trace Compression Methods for Massively Parallel Applications in Context of the SIOX Project (Alvaro Aguilera, Holger Mickler, Julian Kunkel, Michaela Zimmer, Marc Wiedemann, Ralph Müller-Pfefferkorn), In Tools for High Performance Computing 2013, pp. 91–105, ISBN: 978-3-319-08143-4, 2014
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• Monitoring Energy Consumption With SIOX Autonomous Monitoring Triggered by Abnormal Energy Consumption (Julian M. Kunkel, Alvaro Aguilera, Nathanael Hübbe, Marc Wiedemann, Michaela Zimmer), pp. 8, Springer, EnA-HPC 2014, Technische Universität Dresden, Dresden, 2014
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• Towards I/O Analysis of HPC Systems and a Generic Architecture to Collect Access Patterns (Marc Wiedemann, Julian Kunkel, Michaela Zimmer, Thomas Ludwig, Michael Resch, Thomas Bönisch, Xuan Wang, Andriy Chut, Alvaro Aguilera, Wolfgang E. Nagel, Michael Kluge, Holger Mickler), In Computer Science - Research and Development, Series: 28, pp. 241–251, Springer New York Inc. (Hamburg, Berlin, Heidelberg), ISSN: 1865-2034, 2013-05
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• SIOX: An Infrastructure for Monitoring and Optimization of HPC-I/O (Julian Kunkel, Michaela Zimmer, Marc Wiedemann, Nathanael Hübbe, Alvaro Aguilera, Holger Mickler, Xuan Wang, Andrij Chut, Thomas Bönisch), ISC'14 Leipzig, 2014-06-23
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• Towards I/O Analysis of HPC Systems & a Generic Architecture to Collect Access Patterns (Marc Wiedemann), International Supercomputing Conference, Hamburg, Germany, 2012-06-19 Presentation

• Seminar „Speicher- und Dateisysteme“ (Ansprechpartner: Prof. Dr. Michael Kuhn)

• Praktikum „Kernel Programming“ (Ansprechpartner: Konstantinos Chasapis)

• Praktikum „Kernel Programming“ (Ansprechpartner: Konstantinos Chasapis)

• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Prof. Dr. Michael Kuhn)

• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Prof. Dr. Michael Kuhn)

• Proseminar „Ein-/Ausgabe - Stand der Wissenschaft“ (Ansprechpartner: Prof. Dr. Julian Kunkel)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Prof. Dr. Michael Kuhn)

• Proseminar „Architekturen von Hochleistungsrechnern“ (Ansprechpartner: Nathanael Hübbe)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Prof. Dr. Michael Kuhn)

• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Prof. Dr. Michael Kuhn)
• Vorlesung „Programmierung für Naturwissenschaften“ (Ansprechpartner: Prof. Dr. Michael Kuhn)