Interactive In-Job Workflows

Authors:
Branislav Šimo;Ondrej Habala;Emil Gatial;Ladislav Hluchý
Affiliations:
Institute of Informatics, Slovak Academy of Sciences, Bratislava, Slovakia 845,07;Institute of Informatics, Slovak Academy of Sciences, Bratislava, Slovakia 845,07;Institute of Informatics, Slovak Academy of Sciences, Bratislava, Slovakia 845,07;Institute of Informatics, Slovak Academy of Sciences, Bratislava, Slovakia 845,07
Venue:
ICCS '08 Proceedings of the 8th international conference on Computational Science, Part I
Year:
2008

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Abstract

This paper describes a new approach to interactive workflow management in the grid. By modification of existing system for management of applications composed of web and grid services an interactive workflow management system has been created, which allows users to manage complex jobs, composed of several program executions, interactively. The system uses an interactivity functionality provided by the Interactive European Grid project to forward commands from a GUI to a workflow manager running inside of a grid job. The tool is able to visualize the inner workflow of the application and the user has complete in-execution control over the job, can see its partial results, and can even alter it while it is running. This allows not only to accommodate the job workflow to the data it produces, extend or shorten it, but also to interactively debug and tune the job.