Dynamic control of grid workflows through activities global state monitoring

Authors:
Marek Tudruj;Damian Kopanski;Janusz Borkowski
Affiliations:
Polish-Japanese Institute of Information Technology, Warsaw and Institute of Computer Science, Polish Academy of Sciences, Warsaw;Polish-Japanese Institute of Information Technology, Warsaw;Polish-Japanese Institute of Information Technology, Warsaw
Venue:
PPAM'07 Proceedings of the 7th international conference on Parallel processing and applied mathematics
Year:
2007

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Abstract

This paper presents a method to design dynamic execution control in Grid workflows, which is based on predicates defined on global states of constituent activities. This method is based on introduction of user-defined control-dedicated processes called synchronizers. The co-operating synchronizers provide dynamic features in Grid workflows functionality. The use of synchronizer-based control infrastructure provides also means for structured design of complicated control in Gridlevel application programs. This control method has been embedded in a graphical parallel program design system, which facilitates the programming process. The proposed Grid programming environment principles are illustrated with a representative dynamic workflow implementation example.