Grid resource selection for opportunistic job migration

Abstract

The ability to migrate running applications among different grid resources is generally accepted as the solution to adapt to dynamic resource load, availability and cost. In this paper we focus on opportunistic migration when a new resource becomes available in the Grid. In this situation the performance of the new host, the remaining execution time of the application, and also the proximity of the new resource to the needed data, become critical factors to decide if job migration is feasible and worthwhile. We discuss the extension of the GridWay framework to consider all the previous factors in the resource selection and migration stages in order to improve response times of individual applications. The benefits of the new resource selector will be demonstrated for the execution of a computational fluid dynamics (CFD) code. © Springer-Verlag 2003.