June 22–26, 2014
Leipzig, Germany

Session Details

Name: BoF 06: Measuring Energy Usage in Parallel Software/Hardware
Time: Tuesday, June 24, 2014
09:00 am - 10:00 am
Room:   Hall 5
CCL - Congress Center Leipzig
Presenter:   Nick Johnson, EPCC
  Michèle Weiland, EPCC
Abstract:   The EC-funded Adept project addresses the challenge of energy-efficient use of parallel technologies. We will present early results in measuring the power usage of parallel software and hardware, following three clear strands:
  1. Adept is developing benchmarks to help attribute power usage to specific components in a parallel application. We will present our advances in getting accurate and meaningful measurements (as well as the challenges faced), and discuss the value of the information that can be gained.
  2. To measure the power usage of parallel software to a high resolution, we need to either instrument the hardware or rely on vendor-exposed energy usage information. We will discuss our methodology, and compare accuracy and reliability of different measurement techniques.
  3. We will consider “performance vs. energy usage” metrics, which important in order to directly compare different types of software applications running on different hardware architectures, and to quantify the performance/energy trade-off.
The BoF will consist of three short talks on each of the three strands, followed by a moderator-led discussion.