Design Space Exploration for Partially Reconfigurable Architectures in Real-Time Systems

Abstract : In this paper, we introduce FoRTReSS (Flow for Reconfigurable archiTectures in Real-time SystemS), a methodology for the generation of partially reconfigurable architectures with real-time constraints, enabling Design Space Exploration (DSE) at the early stages of the development. FoRTReSS can be completely integrated into existing partial reconfiguration flows to generate physical constraints describing the architecture in terms of reconfigurable regions that are used to floorplan the design, with key metrics such as partially reconfigurable area, real-time or external fragmentation. The flow is based upon our SystemC simulator for real-time systems that helps develop and validate scheduling algorithms with respect to application timing constraints and partial reconfiguration physical behaviour. We tested our approach with a video stream encryption/decryption application together with Error Correcting Code and showed that partial reconfiguration may lead to an area improvement up to 38% on some resources without compromising application performance, in a very small amount of time: less than 30 s.
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F. Duhem, Fabrice Muller, Willy Aubry, Bertrand Le Gal, Daniel Negru, et al.. Design Space Exploration for Partially Reconfigurable Architectures in Real-Time Systems. Journal of Systems Architecture, Elsevier, 2013, 59 (8), pp.571-581. ⟨10.1016/j.sysarc.2013.06.007⟩. ⟨hal-00998839⟩

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