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Workflow Concepts of the Java CoG Kit
Authors:Gregor von Laszewski  Mike Hategan
Affiliation:(1) Mathematics and Computer Science Division, Argonne National Laboratory, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60440, USA;(2) Computation Institute, University of Chicago, Research Institutes Building #402, 5640 S. Ellis Ave., Chicago, IL 60637-1433, USA
Abstract:Many scientific simulations and experiments require the coordination of numerous tasks posed by interdisciplinary research teams. Grids can provide access to the necessary high-end resources to conduct such tasks. The complex tasks and their interactions must be supported through convenient tools. To address this issue, we introduce a number of Grid abstractions that make the development of Grid middleware-independent tools possible and allow for the integration of a number of commodity tools. Our vision is implemented through an integrated approach based on a layered architecture that bridges the gap between Grid middleware and scientific applications. Our abstractions include specialized services, a Grid workflow engine and language, and Gridfaces – graphical abstractions that can be employed in science portals and standalone applications.
Keywords:Java CoG Kit  Grid  workflow
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