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A power measurement environment for PCIe accelerators

Application to the Intel Xeon Phi

Abstract

We describe and validate a complete hardware/software environment for power consumption analysis of PCIe-based accelerators, using the Intel Xeon Phi co-processor as the target platform. Our environment is flexible and affordable—based on commodity instrumentation—and provides both accuracy and transparency for the user, which enables an easy instrumentation of existing codes from the power consumption perspective. We present empirical power traces for two well known scientific codes (LINPACK and libflame) that give insights not only on the benefits of the presented environment, but also on the power profile of the Intel Xeon Phi co-processor under different workloads.

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Acknowledgments

This work is supported by Projects CICYT-TIN 2008/508 and 2012-32180. We thank the technical staff at DACYA for their support in setting up the measurement environment.

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Correspondence to Francisco D. Igual.

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Igual, F.D., Jara, L.M., Gómez-Pérez, J.I. et al. A power measurement environment for PCIe accelerators. Comput Sci Res Dev 30, 115–124 (2015). https://doi.org/10.1007/s00450-014-0266-8

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  • DOI: https://doi.org/10.1007/s00450-014-0266-8

Keywords

  • Measurement environments
  • Hardware accelerators
  • Power-efficent HPC
  • Intel Xeon Phi