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Measuring the effectiveness of throttled data transfers on data-intensive workflows

Rodríguez, Ricardo J., Tolosana-Calasanz, Rafael and Rana, Omer Farooq 2012. Measuring the effectiveness of throttled data transfers on data-intensive workflows. Presented at: KES-AMSTA 2012: 6th KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications, Dubrovnik, Croatia, 25-27 June 2012. Published in: Jezic, G., Kusek, K., Nguyen, N.-T., Howlett, R. J. and Jain, L. C. eds. Agent and Multi-Agent Systems. Technologies and Applications: 6th KES International Conference, KES-AMSTA 2012,Dubrovnik, Croatia, June 25-27, 2012. Proceedings. Berlin and Heidelberg: Springer, pp. 144-153. 10.1007/978-3-642-30947-2_18

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In data intensive workflows, which often involve files, transfer between tasks is typically accomplished as fast as the network links allow, and once transferred, the files are buffered/stored at their destination. Where a task requires multiple files to execute (from different previous tasks), it must remain idle until all files are available. Hence, network bandwidth and buffer/storage within a workflow are often not used effectively. In this paper, we are quantitatively measuring the impact that applying an intelligent data movement policy can have on buffer/storage in comparison with existing approaches. Our main objective is to propose a metric that considers a workflow structure expressed as a Directed Acyclic Graph (DAG), and performance information collected from historical past executions of the considered workflow. This metric is intended for use at the design-stage, to compare various DAG structures and evaluate their potential for optimisation (of network bandwidth and buffer use).

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Publisher: Springer
ISSN: 0302-9743
Last Modified: 06 Aug 2018 15:03

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