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Education and Innovation in Embedded Systems Design

USI Università della Svizzera italiana, USI Faculty of Informatics, Advanced Learning and Research Institute USI Università della Svizzera italiana USI Faculty of Informatics USI Advanced Learning and Research Institute
TitleA Middleware Approach to Achieving Fault-tolerance of Kahn Process Networks on Networks-on-Chips
Publication TypeJournal Article
Year of Publication2011
AuthorsDerin, O., E. Diken, and L. Fiorin
JournalInternational Journal of Reconfigurable Computing
Pagination14 pages
Date PublishedFebruary
Keywordsfault tolerance, kahn process networks (KPN), middleware, network-on-chip (NoC), self-adaptivity

Kahn process networks (KPN) is a distributed model of computation used for describing systems where streams of data are transformed by processes executing in sequence or parallel. Autonomous processes communicate through unbounded FIFO channels in absence of a global scheduler. In this work, we propose a task-aware middleware concept that allows adaptivity in KPN implemented over a Network-on-Chip (NoC). We also list our ideas on the development of a simulation platform as an initial step towards creating fault-tolerance strategies for KPNs applications running on NoCs. In doing that, we extend our SACRE (Self-adaptive Component Run-time Environment) framework by integrating it with an open source NoC simulator, Noxim. We evaluate the overhead that the middleware brings to the the total execution time and to the total amount of data transferred in the NoC. With this work, we also provide a methodology that can help in identifying the requirements and implementing fault tolerance and adaptivity support on real platforms.