Specification and runtime workflow support in the ASKALON Grid environment

Issue title: Dynamic Computational Workflows: Discovery, Optimization and Scheduling

Article type: Research Article

Authors: Prodan, Radu

Affiliations: Institute of Computer Science, University of Innsbruck, Technikerstraße 21a, A-6020 Innsbruck, Austria. Tel.: +43 512 507 6445; Fax: +43 512 507 2758; E-mail: [email protected]

Abstract: We describe techniques to support the runtime execution of scientific workflows in the ASKALON Grid environment. We present a formal model and three middleware services that support in combination the effective execution in heterogeneous and dynamic Grid environments: performance prediction, scheduling, and enactment engine. We validate our techniques with concrete experimental results for two real-world applications executed in the Austrian Grid environment.

Keywords: Grid computing, scientific workflows, performance prediction, scheduling, enactment engine

Journal: Scientific Programming, vol. 15, no. 4, pp. 193-211, 2007