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@INPROCEEDINGS{Hermanns:856881,
      author       = {Hermanns, Marc-André and Hjlem, Nathan T. and Knobloch,
                      Michael and Mohror, Kathryn and Schulz, Martin},
      title        = {{E}nabling callback-driven runtime introspection via
                      ${MPI}_{T}$},
      address      = {New York},
      publisher    = {ACM Press},
      reportid     = {FZJ-2018-06213},
      isbn         = {978-1-4503-6492-8},
      pages        = {8:1--8:10},
      year         = {2018},
      comment      = {Proceedings of the 25th European MPI Users' Group Meeting
                      on - EuroMPI'18},
      booktitle     = {Proceedings of the 25th European MPI
                       Users' Group Meeting on - EuroMPI'18},
      abstract     = {Understanding the behavior of parallel applications that
                      use the Message Passing Interface (MPI) is critical for
                      optimizing communication performance. Performance tools for
                      MPI currently rely on the PMPI Profiling Interface or the
                      MPI Tools Information Interface, $MPI_T,$ for portably
                      collecting information for performance measurement and
                      analysis. While tools using these interfaces have proven to
                      be extremely valuable for performance tuning, these
                      interfaces only provide synchronous information, i.e., when
                      an MPI or an $MPI_T$ function is called. There is currently
                      no option for collecting information about asynchronous
                      events from within the MPI library. In this work we propose
                      a callback-driven interface for event notification from MPI
                      implementations. Our approach is integrated in the existing
                      $MPI_T$ interface and provides a portable API for tools to
                      discover and register for events of interest. We demonstrate
                      the functionality and usability of the interface with a
                      prototype implementation in Open MPI, a small logging tool
                      (MEL) and the measurement infrastructure Score-P.},
      month         = {Sep},
      date          = {2018-09-23},
      organization  = {the 25th European MPI Users' Group
                       Meeting, Barcelona (Spain), 23 Sep 2018
                       - 26 Sep 2018},
      cin          = {JARA-HPC / JSC},
      cid          = {$I:(DE-82)080012_20140620$ / I:(DE-Juel1)JSC-20090406},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511) / ATMLPP - ATML Parallel Performance (ATMLPP)},
      pid          = {G:(DE-HGF)POF3-511 / G:(DE-Juel-1)ATMLPP},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
      UT           = {WOS:000629154600003},
      doi          = {10.1145/3236367.3236370},
      url          = {https://juser.fz-juelich.de/record/856881},
}