An Efficient Protocol for Reserving Multiple Grid Resources in Advance

Autor: Thomas Röblitz, Jörg Schneider, Julius Gehr, Barry Linnert
Rok vydání: 2008
Předmět:
Zdroj: Grid and Services Evolution ISBN: 9780387859651
CoreGRID Workshop on Grid Middleware
DOI: 10.1007/978-0-387-85966-8_14
Popis: We propose a mechanism for the co-allocation of multiple resources in Grid environments. By reserving multiple resources in advance, scientific simulations and large-scale data analyses can efficiently be executed with their desired quality-of-service level. Co-allocating multiple Grid resources in advance poses demanding challenges due to the characteristics of Grid environments, which are (1) incomplete status information, (2) dynamic behavior of resources and users, and (3) autonomous resources’ management systems. Our co-reservation mechanism addresses these challenges by probing the state of the resources and by enhancing a two-phase commit protocol with timeouts. We performed extensive simulations to evaluate communication overhead of the new protocol and the impact of the timeouts’ length on the scheduling of jobs as well as on the utilization of the Grid resources.
Databáze: OpenAIRE