Implementing a Change Assimilation Mechanism for Source Routing Interconnects

Authors:
Antonio Robles-Gómez;Aurelio Bermúdez;Rafael Casado
Affiliations:
Instituto de Investigación en Informática de Albacete, Universidad de Castilla-La Mancha, Albacete 02071;Instituto de Investigación en Informática de Albacete, Universidad de Castilla-La Mancha, Albacete 02071;Instituto de Investigación en Informática de Albacete, Universidad de Castilla-La Mancha, Albacete 02071
Venue:
Euro-Par '09 Proceedings of the 15th International Euro-Par Conference on Parallel Processing
Year:
2009

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Abstract

Current high-performance interconnects are switch-based systems using either distributed or source routing. Usually, they incorporate a management mechanism in charge of detecting and assimilating any topological change. In order to restore the connectivity among endpoints, this mechanism must obtain the new topology, and compute and distribute a new set of fabric paths. It is desirable that the change assimilation process is simple, fast, deadlock-free and, above all, it must minimize the impact of the change on the network service. In this work we implement and evaluate a complete management mechanism for source routing networks that accomplishes all these requirements. The proposed scheme results from the combination of previous proposals for each task in the change assimilation process.