Analysis and optimisation of hierarchically scheduled multiprocessor embedded systems
2008 (English)In: International journal of parallel programming, ISSN 0885-7458, Vol. 36, no 1, 37-67 p.Article in journal (Refereed) Published
We present an approach to the analysis and optimisation of heterogeneous multiprocessor embedded systems. The systems are heterogeneous not only in terms of hardware components, but also in terms of communication protocols and scheduling policies. When several scheduling policies share a resource, they are organised in a hierarchy. In this paper, we first develop a holistic scheduling and schedulability analysis that determines the timing properties of a hierarchically scheduled system. Second, we address design problems that are characteristic to such hierarchically scheduled systems: assignment of scheduling policies to tasks, mapping of tasks to hardware components, and the scheduling of the activities. We also present several algorithms for solving these problems. Our heuristics are able to find schedulable implementations under limited resources, achieving an efficient utilisation of the system. The developed algorithms are evaluated using extensive experiments and a real-life example. © 2007 Springer Science+Business Media, LLC.
Place, publisher, year, edition, pages
2008. Vol. 36, no 1, 37-67 p.
Hierarchical schedulers, Multiprocessor embedded systems, Static/dynamic communication protocols
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-47088DOI: 10.1007/s10766-007-0059-9OAI: oai:DiVA.org:liu-47088DiVA: diva2:267984