Abstract
To schedule precedence task graphs in a more realistic framework, we introduce an efficient fault tolerant scheduling algorithm that is both contention-aware and capable of supporting ε arbitrary fail-silent (fail-stop) processor failures. The design of the proposed algorithm which we call Iso-Level CAFT, is motivated by (i) the search for a better load-balance and (ii) the generation of fewer communications. These goals are achieved by scheduling a chunk of ready tasks simultaneously, which enables for a global view of the potential communications. Our goal is to minimize the total execution time, or latency, while tolerating an arbitrary number of processor failures. Our approach is based on an active replication scheme to mask failures, so that there is no need for detecting and handling such failures. Major achievements include a low complexity, and a drastic reduction of the number of additional communications induced by the replication mechanism. The experimental results fully demonstrate the usefulness of Iso-Level CAFT.
This is a preview of subscription content, log in via an institution to check access.
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Beaumont, O., Boudet, V., Robert, Y.: A realistic model and an efficient heuristic for scheduling with heterogeneous processors. In: Proc. of the 11th Heterogeneous Computing Workshop HCW 2002 (2002)
Benoit, A., Hakem, M., Robert, Y.: Fault tolerant scheduling of precedence task graphs on heterogeneous platforms. In: Proc. of the 10th Int. Workshop in Advances Parallel and Distributed Computational Models APDCM 2008, pp. 1–8 (2008), http://graal.ens-lyon.fr/~abenoit/
Benoit, A., Hakem, M., Robert, Y.: Iso-Level CAFT: How to Tackle the Combination of Communication Overhead Reduction and Fault Tolerance Scheduling. In: RR 2008-25, LIP, ENS Lyon, France (July 2008), http://graal.ens-lyon.fr/~mhakem/
Benoit, A., Hakem, M., Robert, Y.: Realistic models and efficient algorithms for fault tolerance scheduling on heterogeneous platforms. In: Proc. of the 37th IEEE Int. Conference on Parallel Processing ICPP 2008, pp. 246–253 (2008), http://graal.ens-lyon.fr/~abenoit/
Sinnen, O., Sousa, L.: Experimental evaluation of task scheduling accuracy: Implications for the scheduling model. IEICE Transactions on Information and Systems E86-D(9), 1620–1627 (2003)
Sinnen, O., Sousa, L.: Communication contention in task scheduling. IEEE Trans. on Parallel and Distributed Systems 16(6), 503–515 (2005)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Hakem, M. (2009). Iso-Level CAFT: How to Tackle the Combination of Communication Overhead Reduction and Fault Tolerance Scheduling. In: Dou, Y., Gruber, R., Joller, J.M. (eds) Advanced Parallel Processing Technologies. APPT 2009. Lecture Notes in Computer Science, vol 5737. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03644-6_20
Download citation
DOI: https://doi.org/10.1007/978-3-642-03644-6_20
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-03643-9
Online ISBN: 978-3-642-03644-6
eBook Packages: Computer ScienceComputer Science (R0)