Logo image
Dependency-based risk evaluation for robust workflow scheduling
Conference paper   Open access   Peer reviewed

Dependency-based risk evaluation for robust workflow scheduling

Mingzhong Wang, K Ramamohanarao and J Chen
Proceedings of the 26th International Parallel and Distributed Processing Symposium Workshops (IPDPSW 2012), pp.2328-2335
International Parallel and Distributed Processing Symposium Workshops (IPDPSW), 26th (Shanghai, China, 21-May-2012–25-May-2012)
IEEE Computer Society
2012
pdf
PDF - Published Version266.66 kBDownloadView
Published VersionPDF - Published Version Open Access
url
https://doi.org/10.1109/IPDPSW.2012.286View
Published Version

Abstract

risk assessment robustness workflow schedule
The robustness of a schedule, with respect to its probability of successful execution, becomes an indispensable requirement in open and dynamic service-oriented environment, such as grids or clouds. We design a fine-grained risk assessment model customized for workflows to precisely compute the cost of failure of a schedule. In comparison with current course-grained model, ours takes the relation of task dependency into consideration and assigns higher impact factor to tasks at the end. Thereafter, we design the utility function with the model and apply a genetic algorithm to find the optimized schedule, thereby maximizing the robustness of the schedule while minimizing the possible risk of failure. Experiments and analysis show that the application of customized risk assessment model into scheduling can generally improve the successful probability of a schedule while reducing its exposure to the risk. © 2012 IEEE.

Details

Metrics

53 File views/ downloads
642 Record Views
Logo image