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Paper ID: 1534

GridWorkflow Scheduling in WOSE
Yash,Patel Andrew Stephen,Mc Gough John,Darlington

Appeared in: Proceedings of the UK e-Science All Hands Conference 2006 website: http://www.allhands.org.uk/2006/
Page Numbers:566 - 574
Publisher: National e-Science Centre
Year: 2006
ISBN/ISSN: 0-9553988-0-0
Contributing Organisation(s):
Field of Science: e-Science

URL: http://www.allhands.org.uk/2006/proceedings/papers/673.pdf

Abstract: Grid users seek to use combinations of web services to perform the overall task they need to achieve. The user may also have certain constraints on the workflow operations, such as execution time or cost to the user, specified in the form of a Quality of Service (QoS) document. We propose in this paper an approach for generating constraint equations describing the workflow, the QoS requirements and the state of the Grid. We further develop a 2-stage stochastic ILP which is capable of dealing with the volatile nature of the Grid and adapting the selection of the services during the life of the workflow. We present experimental results comparing our approaches, showing that the 2-stage stochastic programming approach performs consistently better than other traditional approaches.

Keywords: e-Science, AHM 2006


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