Thermal-aware global real-time scheduling and analysis on multicore systems

  • Authors:
  • Nathan Fisher;Jian-Jia Chen;Shengquan Wang;Lothar Thiele

  • Affiliations:
  • Department of Computer Science, Wayne State University, USA;Computer Engineering and Networks Laboratory (TIK), ETH Zurich, Switzerland;Department of Computer and Information Science, University of Michigan-Dearborn, USA;Computer Engineering and Networks Laboratory (TIK), ETH Zurich, Switzerland

  • Venue:
  • Journal of Systems Architecture: the EUROMICRO Journal
  • Year:
  • 2011

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Abstract

As the power density of modern electronic circuits increases dramatically, systems are prone to overheating. Thermal management has become a prominent issue in system design. This paper explores thermal-aware scheduling for sporadic real-time tasks to minimize the peak temperature in a homogeneous multicore system, in which heat might transfer among some cores. By deriving an ideally preferred speed for each core, we propose global scheduling algorithms which can exploit the flexibility of multicore platforms at low temperature. We perform simulations to evaluate the performance of the proposed approach.