Intelligent Dynamic Network Reconfiguration

Acosta, Juan R.; Avresky, Dimiter R.

doi:10.1109/ipdps.2007.370606

Cited by 8 publications

(2 citation statements)

References 15 publications

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“…On the contrary, dynamic reconfiguration updates routing tables without stopping user traffic. In this case, the main challenge is to guarantee deadlock freedom as old and new routing functions are simultaneously active [2], [9]- [15].…”

Section: Previous Workmentioning

confidence: 99%

OSR-Lite: Fast and deadlock-free NoC reconfiguration framework

Strano

Bertozzi

Triviño

et al. 2012

2012 International Conference on Embedded Computer Systems (SAMOS)

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Abstract-Current and future on-chip networks will feature an enhanced degree of reconfigurability. Power management and virtualization strategies as well as the need to survive to the progressive onset of wear-out faults are root causes for that. In all these cases, a non-intrusive and efficient reconfiguration method is needed to allow the network to function uninterruptedly over the course of the reconfiguration process while remaining deadlock-free. This paper is inspired by the overlapped static reconfiguration (OSR) protocol developed for off-chip networks. However, in its native form its implementation in NoCs is outof-reach. Therefore, we provide a careful engineering of the NoC switch architecture and of the system-level infrastructure to support a cost-effective, complete and transparent reconfiguration process. Performance during the reconfiguration process is not affected and implementation costs (critical path and area overhead) are proved to be fully affordable for a constrained system. Less than 250 cycles are needed for the reconfiguration process of an 8x8 2D mesh with marginal impact on system performance.

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Section: Previous Workmentioning

confidence: 99%

OSR-Lite: Fast and deadlock-free NoC reconfiguration framework

Strano

Bertozzi

Triviño

et al. 2012

2012 International Conference on Embedded Computer Systems (SAMOS)

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“…A number of studies [7,8,9,10,2,11,12,13,14,15] have focused on dynamic reconfiguration, which allows application traffic into the network during reconfiguration, and thereby aims at supporting a better network service than static reconfiguration do. The studies listed above present general approaches that are not tied to particular network technologies.…”

Section: Introductionmentioning

confidence: 99%

RecTOR: A New and Efficient Method for Dynamic Network Reconfiguration

Solheim

Lysne

Skeie

2009

Lecture Notes in Computer Science

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Reconfiguration of an interconnection network is fundamental for the provisioning of a reliable service. Current reconfiguration methods either include deadlock-avoidance mechanisms that impose performance penalties during the reconfiguration, or are tied to the Up*/Down* routing algorithm which achieves relatively low performance. In addition, some of the methods require complex network switches, and some are limited to distributed routing systems. This paper presents a new dynamic reconfiguration method, RecTOR, which ensures deadlockfreedom during the reconfiguration without causing performance degradation such as increased latency or decreased throughput. Moreover, it is based on a simple concept, is easy to implement, is applicable for both source and distributed routing systems, and assumes Transition-Oriented Routing which achieves excellent performance. Our simulation results confirm that RecTOR supports a better network service to the applications than Overlapping Reconfiguration does.

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