Reliability Aware Real Time Scheduling Strategies for Heterogeneous Embedded Systems
Saurav Kumar Ghosh, Abhimanyu Nanda, Soumyajit Dey · 2018
As the design paradigm shifts from federated to integrated architecture in the automotive domain [1], scheduling of real time tasks becomes increasingly important to utilize the computation resources of integrated architectures. In addition to having real time deadlines, automotive tasks like Anti-lock Braking System (ABS) that are safety critical in nature, also demand high reliability against transient fault induced soft errors [2] which silently corrupts the results. Existing reliability aware scheduling strategies are offline and real time dynamic scheduling strategies are not reliability aware. This is an initial attempt to bridge this gap and propose reliability aware online scheduling strategies for periodic, aperiodic, and sporadic real time tasks. We also propose a suitable approach to guarantee the maximum load that can be successfully scheduled by the proposed strategies for a heterogeneous architecture.