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Iterative Schedule Optimisation for Voltage scalable Distributed Embedded Systems
Dept. of Electronics and Computer Science University of Southampton.
Dept. of Electronics and Computer Science University of Southampton.
Linköpings universitet, Tekniska högskolan. Linköpings universitet, Institutionen för datavetenskap, ESLAB - Laboratoriet för inbyggda system.
2004 (Engelska)Ingår i: ACM Transactions on Embedded Computing Systems, ISSN 1539-9087, E-ISSN 1558-3465, Vol. 3, nr 1, s. 182-217Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We present an iterative schedule optimisation for multi-rate system specifications, mapped onto heterogeneous distributed architectures containing dynamic voltage scalable processing elements (DVS-PEs).To achieve a high degree of energy reduction, we formulate a generalised DVS problem, taking into account the power variations among the executing tasks. An efficient heuristic is presented that identifies optimised supply voltages by not only "simply" exploiting slack time, but under the additional consideration of the power profiles. Thereby, this algorithm minimises the energy dissipation of heterogeneous architectures, including power managed processing elements, effectively. Further, we address the simultaneous schedule optimisation towards timing behaviour and DVS utilisation by integrating the proposed DVS heuristic into a genetic list scheduling approach. We investigate and analyse the possible energy reduction at both steps of the co-synthesis (voltage scaling and scheduling), including the power variations effects. Extensive experiments indicate that the presented work produces solutions with high quality.

Ort, förlag, år, upplaga, sidor
2004. Vol. 3, nr 1, s. 182-217
Nyckelord [en]
dynamic voltage scaling, DVS, supply voltage, co-synthesis, energy reduction
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:liu:diva-23322DOI: 10.1145/972627.972636Lokalt ID: 2752OAI: oai:DiVA.org:liu-23322DiVA, id: diva2:243636
Tillgänglig från: 2009-10-07 Skapad: 2009-10-07 Senast uppdaterad: 2018-01-13

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Förlagets fulltexthttp://www.ida.liu.se/labs/eslab/publications/pap/db/ACM_TECS03.pdf

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