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Auflistung nach Autor:in "Bauer, Martin"

1 - 6 von 6
  • Zeitschriftenartikel
    Comparison of PGAS Languages on a Linked Cell Algorithm
    (PARS-Mitteilungen: Vol. 30, Nr. 1, 2013) Bauer, Martin; Kuschel, Christian; Ritter, Daniel; Sembritzki, Klaus
    The intention of partitioned global address space (PGAS) languages is to decrease developing time of parallel programs by abstracting the view on the memory and communication. Despite the abstraction a decent speed-up is promised. In this paper the performance and implementation time of Co-Array Fortran (CAF)Unified Parallel C (UPC) and Cascade High Productivity Language (Chapel) are compared by means of a linked cell algorithm. An MPI parallel reference implementation in C is ported to CAFChapel and UPCrespectivelyand is optimized with respect to the available features of the corresponding language. Our tests show parallel programs are developed faster with the above mentioned PGAS languages as compared to MPI. We experienced a performance penalty for the PGAS versions that can be reduced at the expense of a similar programming effort as for MPI. Programmers should be aware that the utilization of PGAS languages may lead to higher administrative effort for compiling and executing programs on different super-computers.
  • Zeitschriftenartikel
    Comparison of PGAS Languages on a Linked Cell Algorithm
    (PARS: Parallel-Algorithmen, -Rechnerstrukturen und -Systemsoftware: Vol. 30, No. 1, 2013) Bauer, Martin; Kuschel, Christian; Ritter, Daniel; Sembritzki, Klaus
    The intention of partitioned global address space (PGAS) languages is to decrease developing time of parallel programs by abstracting the view on the memory and communication. Despite the abstraction a decent speed-up is promised. In this paper the performance and implementation time of Co-Array Fortran (CAF), Unified Parallel C (UPC) and Cascade High Productivity Language (Chapel) are compared by means of a linked cell algorithm. An MPI parallel reference implementation in C is ported to CAF, Chapel and UPC, respectively, and is optimized with respect to the available features of the corresponding language. Our tests show parallel programs are developed faster with the above mentioned PGAS languages as compared to MPI. We experienced a performance penalty for the PGAS versions that can be reduced at the expense of a similar programming effort as for MPI. Programmers should be aware that the utilization of PGAS languages may lead to higher administrative effort for compiling and executing programs on different super-computers.
  • Zeitschriftenartikel
    Estimating Process Conformance by Trace Sampling and Result Approximation.
    (EMISA Forum: Vol. 40, No. 1, 2020) Bauer, Martin; Aa, Han van der; Weidlich, Matthias
  • Konferenzbeitrag
    Keeping track of "flying elephants": Challenges in large-scale management of complex mobile objects
    (Informatik 2004 – Informatik verbindet – Band 1, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Drosdol, Tobias; Schwarz, Thomas; Bauer, Martin; Großmann, Matthias; Hönle, Nicola; Nicklas, Daniela
    The management of mobile objects like cars, persons, or workpieces in a factory is an important task in many context-aware environments. So far, most solutions can either cope with many small objects (few properties) or with a limited number of complex objects in a centralized way. In this paper, we face the challenge of managing a large number of bulky mobile objects (flying elephants). We state requirements, propose basic components, and discuss alternative architectures based on the main influencing factors like mobility and update rate.
  • Konferenzbeitrag
    SFB 627 Umgebungsmodelle für mobile kontextbezogene Systeme
    (INFORMATIK 2003 – Innovative Informatikanwendungen, Band 1, Beiträge der 33. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2003) Rothermel, Kurt; Fritsch, Dieter; Kühn, Paul J.; Mitschang, Bernhard; Bauer, Martin; Becker, Christian; Hauser, Christian; Nicklas, Daniela; Volz, Steffen
    Ziel des Sonderforschungsbereichs 627 „Umgebungsmodelle für mobile kontextbezogene Systeme“ ist die Erforschung von Methoden und Verfahren für die Definition, die Verwaltung und die Nutzung von digitalen Umgebungsmodellen. Existierende Informationsräume werden mit komplexen Modellen der realen Welt verschränkt und erlauben so neuartige Anwendungen. Insbesondere die Klasse der ortsbezogenen Anwendungen und aktuelle Forschungsgebiete wie das Ubiquitous Computing können von solchen Umgebungsmodellen profitieren, oder werden durch sie erst ermöglicht.
  • Konferenzbeitrag
    Towards a real world internet: Context and actuation based on the SENSEI system
    (Informatik 2009 – Im Focus das Leben, 2009) Bauer, Martin