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Dynamic Communicators in MPI

  • Conference paper
Recent Advances in Parallel Virtual Machine and Message Passing Interface (EuroPVM/MPI 2009)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 5759))

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Abstract

This paper describes a proposal to add support for dynamic communicators to the MPI standard. This adds the ability to grow or shrink a specified communicator, under well defined conditions. The goal is to make it possible for a new class of applications – long-running, mission-critical, loosely coupled applications, running in a highly dynamic environment – to use MPI libraries for their communication needs, and to enable HPC applications to adjust to changing system resources. Implementation analysis indicates that performance impact on existing high-performance MPI applications should be minimal, or non-existent. The changes to MPI implementations are expected to be well compartmentalized.

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Author information

Authors and Affiliations

  1. Computer Science and Mathematics Departement, Oak Ridge National Laboratory, USA

    Richard L. Graham & Rainer Keller

Authors
  1. Richard L. Graham
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  2. Rainer Keller
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Editor information

Editors and Affiliations

  1. Department of Information Technology, Åbo Akademi, 20500, Turku, Finland

    Matti Ropo  & Jan Westerholm  & 

  2. Department of Electrical Engineering and Computer Science, University of Tennessee, 37996-3450, Knoxville, TN, USA

    Jack Dongarra

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© 2009 Springer-Verlag Berlin Heidelberg

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Graham, R.L., Keller, R. (2009). Dynamic Communicators in MPI. In: Ropo, M., Westerholm, J., Dongarra, J. (eds) Recent Advances in Parallel Virtual Machine and Message Passing Interface. EuroPVM/MPI 2009. Lecture Notes in Computer Science, vol 5759. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03770-2_18

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  • DOI: https://doi.org/10.1007/978-3-642-03770-2_18

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-03769-6

  • Online ISBN: 978-3-642-03770-2

  • eBook Packages: Computer ScienceComputer Science (R0)

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