Specification and runtime workflow support in the ASKALON Grid environment

  • Authors:
  • Radu Prodan

  • Affiliations:
  • Institute of Computer Science, University of Innsbruck, Technikerstraß/e 21a, A-6020 Innsbruck, Austria. Tel.: +43 512 507 6445/ Fax: +43 512 507 2758/ E-mail: radu@dps.uibk.ac.at

  • Venue:
  • Scientific Programming - Dynamic Computational Workflows: Discovery, Optimization and Scheduling
  • Year:
  • 2007

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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.