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Partitioning and Task Transfer on NoC-based Many-Core Processors in the Avionics Domain

: Hilbrich, Robert; Kampenhout, J. Reinier van

Fulltext urn:nbn:de:0011-n-2497338 (246 KByte PDF)
MD5 Fingerprint: 9d8e9621b23cf5f43ffa41d1f032835d
Created on: 18.7.2013

Gesellschaft für Informatik -GI-, Fachgruppe 2.1.5 Ada:
Berichte aus den Fachgruppen und Arbeitskreisen : FG Ada4. Workshop Entwicklung Zuverlässiger Software-Systeme 2011. Bericht und Beiträge : vom 30. Juni 2011 in Stuttgart
Bonn: GI, 2011 (Softwaretechnik-Trends 31.2011, Nr.3)
6 pp.
Workshop Entwicklung zuverlässiger Software-Systeme <4, 2011, Stuttgart>
Conference Paper, Electronic Publication
Fraunhofer FIRST ()
Partitioning; Task Transfer; Task Migration; multicore; NoC

Networks-on-Chip (NoC) based many-core processors can not only increase system performance but also allow the integration of multiple functions on a single hardware platform. To consolidate functionality on many-core systems in safety-critical domains software partitioning is required to avoid the propagation of faults due to the use of shared resources. In this paper we propose extensions to well established single-core partitioning mechanisms to take novel architectural characteristics of many-core processors into account. In addition to fixed partitioning, we present flexible partitioning as an approach to improve resource utilization and fault tolerance using dynamic reconfiguration. Flexible partitioning requires task migration between cores via a shared resource - the N oC - which may endanger the required predictability. Therefore we empirically analyze a variety of task transfer mechanisms on a Tilera TILEPro64TM many-core processor regarding their potential for deterministic reconfiguration during run-time.