Computer Science - Research and Development

, Volume 27, Issue 4, pp 255–263

Determine energy-saving potential in wait-states of large-scale parallel programs

Authors

    • Jülich Supercomputing Centre (JSC) Forschungszentrum Jülich
  • Bernd Mohr
    • Jülich Supercomputing Centre (JSC) Forschungszentrum Jülich
  • Timo Minartz
    • Department of InformaticsUniversity of Hamburg
Open AccessSpecial Issue Paper

DOI: 10.1007/s00450-011-0196-7

Cite this article as:
Knobloch, M., Mohr, B. & Minartz, T. Comput Sci Res Dev (2012) 27: 255. doi:10.1007/s00450-011-0196-7

Abstract

Energy consumption is one of the major topics in high performance computing (HPC) in the last years. However, little effort is put into energy analysis by developers of HPC applications.

We present our approach of combined performance and energy analysis using the performance analysis tool-set Scalasca. Scalascas parallel wait-state analysis is extended by a calculation of the energy-saving potential if a lower power-state can be used.

Keywords

Power consumptionEnergy efficiencyEnergyPerformanceAnalysisScalascaMPI
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Copyright information

© The Author(s) 2011