Grid Job Handler

The Workflow Engine of the Fraunhofer Resource Grid

In addition to the execution of simple, uncoupled applications which have been defined by the Globus-specific description language XML-RSL, the current version of the Grid Job Handler allows the execution of coupled Grid jobs based on the description language GJobDL, version 1.1. Here, the control and data flow is described by a Petri net. The Grid Job Handler uses the Globus service GRAM in order to execute the single components of the coupled Grid application on usual Globus grid nodes. Utilizing the service GridFTP you can transmit the necessary data and executable files to the target computer before the job execution. The installation of Globus on the local machine on which the Grid Job Handler will be started is not required.

There is also a prototype available that consumes GJobDL version 2.0 which is based on top of the Globus Toolkit 3.2 using Grid Service method calls as basic flow element.

Within the K-Wf Grid project there will be a complete redesign of the Grid Job Handler focusing on Web- and Grid-Service invokation (refer to GWES)

References

• Hoheisel, A.: Der Grid Job Handler des Fraunhofer Resource Grid. Kurzanleitung, Fraunhofer FIRST, 2004 pdf 286kB
• Hoheisel, A.: The Grid Job Handler of the Fraunhofer Resource Grid. Getting started guide, Fraunhofer FIRST, 2004 pdf 286kB (in Englisch)
• Hoheisel, A., Zschaage, T., Loos, S.: Grid Job Handler Event Channel Syntax. Technischer Report, Fraunhofer FIRST, 2003 html 19kB (in Englisch)
• Hoheisel, A.: Ein Komponentenmodell für Softwarekomponenten des Fraunhofer Resource Grid. Interner Report, Fraunhofer FIRST, 2002 pdf 31kB, ps 51kB