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Algorithms for Temperature-Aware Task Scheduling in Microprocessor Systems by Chrobak, Marek; Durr, Christoph; Hurand, Mathilde; Robert, Julien is a scholarly article available to read on EtoBox.

What is Algorithms for Temperature-Aware Task Scheduling in Microprocessor Systems about?

We study scheduling problems motivated by recently developed techniques for microprocessor thermal management at the operating systems level. The general scenario can be described as follows. The microprocessor's temperature is controlled by the hardware thermal management system that continuously monitors the chip temperature and automatically reduces the processor's speed as soon as the thermal threshold is exceeded. Some tasks are more CPU-intensive than other and thus generate more heat during execution. The cooling system operates non-stop, reducing (at an exponential rate) the deviation of the processor's temperature from the ambient temperature. As a result, the processor's temperature, and thus the performance as well, depends on the order of the task execution. Given a variety of possible underlying architectures, models for cooling and for hardware thermal management, as well as types of tasks, this scenario gives rise to a plethora of interesting and never studied scheduling problems. We focus on scheduling real-time jobs in a simplified model for cooling and thermal management. A collection of unit-length jobs is given, each job specified by its release time, deadline a

Author

Chrobak, Marek; Durr, Christoph; Hurand, Mathilde; Robert, Julien

Published

2008

Language

EN