Soft Computing

, Volume 22, Issue 10, pp 3271–3285 | Cite as

A genetic algorithm-based method for optimizing the energy consumption and performance of multiprocessor systems

  • Anju S. Pillai
  • Kaumudi Singh
  • Vijayalakshmi Saravanan
  • Alagan Anpalagan
  • Isaac Woungang
  • Leonard Barolli


In a multiprocessor system, scheduling is an NP-hard problem, and solving it using conventional techniques demands the support of evolutionary algorithms such as genetic algorithms (GAs). Handling the energy consumption issues, while delivering the desired performance for a system, is also a challenging task. In order to achieve these goals, this paper proposes a GA-based method for optimizing the energy consumption and performance of multiprocessor systems using a weighted-sum approach. A performance optimization algorithm with two different selection operators, namely the proportional roulette wheel selection (PRWS) and the rank-based roulette wheel selection (RRWS), is proposed, and the impact of adding elitism in the GA is investigated. Simulation results show that for a specific task graph, using the considered selection operators with elitism yields, respectively, 16.80, 17.11 and 17.82% reduction in energy consumption with a deviation in finish time of 2.08, 2.01 and 1.76 ms when an equal weight factor of 0.5 is considered. This confirms that the selection operator RRWS is superior to PRWS. It is also seen that using elitism enhances the optimization procedure. For a given specific workload, the average percentage reduction in energy consumption with varying weight vector is in the range 12.57–19.51%, with a deviation in finish time of the schedule varying between 1.01 and 2.77 ms.


Multi-objective optimization Genetic algorithm (GA) Multiprocessor systems Task graph Task scheduling Energy optimization Schedule length minimization 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Human and animal rights

This article does not contain any studies with human participants or animals performed by any of the authors.


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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Anju S. Pillai
    • 1
  • Kaumudi Singh
    • 2
  • Vijayalakshmi Saravanan
    • 3
  • Alagan Anpalagan
    • 4
  • Isaac Woungang
    • 5
  • Leonard Barolli
    • 6
  1. 1.Department of Electrical and Electronics Engineering, Amrita School of Engineering, Amrita Vishwa VidyapeethamAmrita UniversityCoimbatoreIndia
  2. 2.Department of Electronic System EngineeringIndian Institute of ScienceBangaloreIndia
  3. 3.Department of Electrical and Computer EngineeringUniversity of WaterlooWaterlooCanada
  4. 4.Department of Electrical and Computer EngineeringRyerson UniversityTorontoCanada
  5. 5.Department of Computer ScienceRyerson UniversityTorontoCanada
  6. 6.Department of Information and Communication Engineering Faculty of Information EngineeringFukuoka Institute of Technology (FIT)FukuokaJapan

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