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Energy-Efficient Mapping and Scheduling for DVS Enabled Distributed Embedded Systems

Schmitz, Marcus T., Al-Hashimi, Bashir M. and Eles, Petru (2002) Energy-Efficient Mapping and Scheduling for DVS Enabled Distributed Embedded Systems

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In this paper, we present an efficient two-step iterative synthesis approach for distributed embedded systems containing dynamic voltage scalable processing elements (DVS-PEs), based on genetic algorithms. The approach partitions, schedules, and voltage scales multi-rate specifications given as task graphs with multiple deadlines. A distinguishing feature of the proposed synthesis is the utilisation of a generalised DVS method. In contrast to previous techniques, which "simply" exploit available slack time, this generalised technique additionally considers the PE power profile during a refined voltage selection to further increase the energy savings. Extensive experiments are conducted to demonstrate the efficiency of the proposed approach. We report up to 43.2% higher energy reductions compared to previous DVS scheduling approaches based on constructive techniques and total energy savings of up to 82.9% for mapping and scheduling optimised DVS systems.

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Published date: March 2002
Additional Information: accepted for publication
Organisations: Electronic & Software Systems


Local EPrints ID: 256142
PURE UUID: dcd9777e-7a8f-43e7-b6ea-fe309c6fae8e

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Date deposited: 21 Nov 2001
Last modified: 18 Jul 2017 09:48

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Author: Marcus T. Schmitz
Author: Petru Eles

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