Supporting Quality of Service in Scientific Workflows

Tim Dörnemann

ISBN 10: 3838132343 / ISBN 13: 9783838132341

Published by Südwestdeutscher Verlag Für Hochschulschriften AG Co. KG Jul 2015, 2015

About this Item

This item is printed on demand - it takes 3-4 days longer - Neuware -In this book, the use of the industry standard BPEL, a Turing-complete workflow language for modeling business processes, is proposed for the modeling and the execution of scientific workflows. BPEL is well suited for the modeling of scientific workflows, but existing implementations of the standard lack important properties - such as availability, reliability, and scalability - that are necessary for the execution of scientific workflows. This work presents components that extend an existing implementation of the BPEL standard and eliminate the identified weaknesses. Those components include a provisioner which enables the system to automatically provision virtual machines from Cloud environments. It is steered by a multi-objective genetic scheduling algorithm that takes data flow dependencies and cost into account. A policy-based fault-tolerance component improves reliability and availability of the system by using a variety of mechanisms, including Cloud-based substituion of faulty servers. Lastly, a comprehensive suite of easy-to-use graphical development and modeling tools is presented. 236 pp. Englisch.

Seller Inventory # 9783838132341

Bibliographic Details

• Title: Supporting Quality of Service in Scientific Workflows
• Publisher: Südwestdeutscher Verlag Für Hochschulschriften AG Co. KG Jul 2015
• Publication Date: 2015
• Language: English
• ISBN 10: 3838132343
• ISBN 13: 9783838132341
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 15D millimeters 220 millimeters width by 150 millimeters height by 15 millimeters depth
• Weight: 369 grams

About this title

Synopsis

In this book, the use of the industry standard BPEL, a Turing-complete workflow language for modeling business processes, is proposed for the modeling and the execution of scientific workflows. BPEL is well suited for the modeling of scientific workflows, but existing implementations of the standard lack important properties – such as availability, reliability, and scalability – that are necessary for the execution of scientific workflows. This work presents components that extend an existing implementation of the BPEL standard and eliminate the identified weaknesses. Those components include a provisioner which enables the system to automatically provision virtual machines from Cloud environments. It is steered by a multi-objective genetic scheduling algorithm that takes data flow dependencies and cost into account. A policy-based fault-tolerance component improves reliability and availability of the system by using a variety of mechanisms, including Cloud-based substituion of faulty servers. Lastly, a comprehensive suite of easy-to-use graphical development and modeling tools is presented.

About the Author

Tim Dörnemann holds a diploma (M.Sc.) degree in Computer Science and worked as a full-time research and teaching assistant in the Department of Mathematics and Computer Science at the University of Marburg (Germany) from 2006 to 2011. In 2012, he completed his Ph.D. with a focus on Workflow Quality of Service in Cloud Computing environments.