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Advanced Event-Sampling Support for PAPI

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Programming and Performance Visualization Tools (ESPT 2017, ESPT 2018, VPA 2017, VPA 2018)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 11027))

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Abstract

The PAPI performance library is a widely used tool for gathering performance data from running applications. Modern processors support advanced sampling interfaces, such as Intel’s Precise Event Based Sampling (PEBS) and AMD’s Instruction Based Sampling (IBS). The current PAPI sampling interface predates the existence of these interfaces and only provides simple instruction-pointer based samples.

We propose a new, improved, sampling interface that provides support for the extended sampling information available on modern hardware. We extend the PAPI interface to add a new PAPI_sample_init call that uses the Linux perf_event interface to access the extra sample information. A pointer to these samples is returned to the user, who can either decode them on the fly, or write them to disk for later analysis.

By providing extended sampling information, this new PAPI interface allows advanced performance analysis and optimization that was previously not possible. This will greatly enhance the ability to optimize software in modern extreme-scale programming environments.

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Acknowledgment

This work was supported by the National Science Foundation under Grant No. SSI-1450122.

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Authors and Affiliations

  1. University of Maine, Orono, ME, 04469, USA

    Forrest Smith & Vincent M. Weaver

Authors
  1. Forrest Smith
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  2. Vincent M. Weaver
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Corresponding author

Correspondence to Vincent M. Weaver .

Editor information

Editors and Affiliations

  1. Lawrence Livermore National Laboratory, Livermore, CA, USA

    Abhinav Bhatele

  2. Lawrence Livermore National Laboratory, Livermore, CA, USA

    David Boehme

  3. The University of Arizona, Tucson, AZ, USA

    Joshua A. Levine

  4. University of Oregon, Eugene, OR, USA

    Allen D. Malony

  5. Technical University of Munich, Munich, Germany

    Martin Schulz

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Smith, F., Weaver, V.M. (2019). Advanced Event-Sampling Support for PAPI. In: Bhatele, A., Boehme, D., Levine, J., Malony, A., Schulz, M. (eds) Programming and Performance Visualization Tools. ESPT ESPT VPA VPA 2017 2018 2017 2018. Lecture Notes in Computer Science(), vol 11027. Springer, Cham. https://doi.org/10.1007/978-3-030-17872-7_9

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  • DOI: https://doi.org/10.1007/978-3-030-17872-7_9

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-17871-0

  • Online ISBN: 978-3-030-17872-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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