Workflow applications are frequently used in many production Grids. There is a natural need to run the same workflow with many different parameter sets. P-GRADE portal has been providing a high-level, graphical workflow development and execution environment for various Grids (EGEE, UK NGS, GIN VO, OSG, TeraGrid, etc.) built on second and third generation Grid technologies (GT2, LCG-2, GT4, gLite). Feedback from the user communities of the portal showed that parameter study support is highly needed and hence the recent release (2.5) of the portal supports the workflow-level parameter study applications. The current paper describes the semantics and implementation principles of managing and executing workflows as parameter studies. Special emphasis is on the generation of the parameter input files, concurrent management of large number of files and jobs as well as collecting the large number of results generated at the PS execution time.
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Kacsuk, P., Farkas, Z., Sipos, G., Hermann, G., Kiss, T. (2007). Supporting Workflow-level PS Applications by the P-GRADE Grid portal. In: Priol, T., Vanneschi, M. (eds) Towards Next Generation Grids. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-72498-0_23
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DOI: https://doi.org/10.1007/978-0-387-72498-0_23
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