Adaptive Task Migration Policies for Thermal Control in MPSoCs

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Executive Summary

In deep submicron circuits, high temperatures have created critical issues in reliability, timing, performance, coolings costs and leakage power. Task migration techniques have been proposed to manage efficiently the thermal distribution in multi-processor systems but at the cost of important performance penalties. While traditional techniques have focused on reducing the average temperature of the chip, they have not considered the effect that temperature gradients have in system reliability. In this paper, the authors explore the benefits of thermal-aware task migration techniques for embedded multi-processor systems. They propose several policies that are able to reduce the average temperature of the chip and the thermal gradients with a negligible performance overhead.

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