Architecture, mechanisms and scheduling analysis tool for multicore time- and space-partitioned systems
João Craveiro, José Luiz Rufino, Frank Singhoff · ACM SIGBED Review · 2011
Time- and space-partitioned systems (TSP) are a current trend in aerospace. They are employed to integrate a heterogeneous set of functions (different criticalities, real-time requirements, and origins) in a shared computing platform, fulfilling individual partitions' and global real-time properties. Applications are separated into logical partitions, scheduled according to predefined partition scheduling tables (PSTs). In this paper we expose our current work on exploiting multiprocessor/multicore processor platforms to add capacity, flexibility and safety to the current state of the art in TSP systems. We propose architectural evolutions, as well as the development of a schedule analysis and generation tool based on Cheddar. The tool will incorporate and extend real-time scheduling theory results, and be able to analyse the feasibility of PSTs and aid the generation of PSTs from the individual timing requirements of each function.