Robustness analysis of multiprocessor schedules
conference paper
Tasks executing on general purpose multiprocessor platforms exhibit variations in their execution times. As such, there is a need to explicitly consider robustness, i.e., tolerance to these fluctuations. This work aims to quantify the robustness of schedules of directed acyclic graphs (DAGs) on multiprocessors by defining probabilistic robustness metrics and to present a new approach to perform robustness analysis to obtain these metrics. Stochastic execution times of tasks are used to compute completion time distributions which are then used to compute the metrics. To overcome the difficulties involved with the max operation on distributions, a new curve fitting approach is presented using which we can derive a distribution from a combination of analytical and limited simulation based results. The approach has been validated on schedules of time-critical applications in ASML wafer scanners.
Topics
TNO Identifier
519631
ISBN
9781479937707
Publisher
Institute of Electrical and Electronics Engineers Inc.
Article nr.
6893189
Source title
14th International Conference on Embedded Computer Systems: Architectures, Modeling and Simulation, SAMOS 2014, 14 July 2014 through 17 July 2014
Editor(s)
Veidenbaum A.V.
Galuzzi C.
Galuzzi C.
Pages
9-17
Files
To receive the publication files, please send an e-mail request to TNO Repository.