Temperature-Aware Scheduling and Assignment for Hard Real-Time Applications on MPSoCs

—Increasing integrated circuit (IC) power densities and temperatures may hamper multiprocessor system-on-chip (MPSoC) use in hard real-time systems. This article formalizes the temperature-aware real-time MPSoC assignment and scheduling problem and presents an optimal mixed integer linear programming based solution that considers the impact of scheduling and assignment decisions on MPSoC thermal profiles to directly minimize the chip peak temperature. We also introduce a flexible heuristic framework for task assignment and scheduling that permits system designers to trade off accuracy for running time to solve large problem instances. Finally, for task sets with sufficient slack, we show that inserting idle times between task executions can further reduce the peak temperature of the MPSoC quite significantly.

• Type: Conference
• Year: 2008
• Where: DATE
• Authors: Thidapat Chantem, Robert P. Dick, Xiaobo Sharon Hu
• Keywords: DATE 2008, Hardware, Mixed Integer Linear Programming, Peak Temperature, Real-time Mpsoc Assignment