A4 Refereed article in a conference publication
A Routing-Level Solution for Fault Detection, Masking, and Tolerance in NoCs
Authors: Zhang XF, Ebrahimi M, Huang LT, Li GJ, Jantsch A
Editors: Daneshtalab, M; Aldinucci, M; Leppanen, V; Lilius, J; Brorsson, M
Conference name: Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP)
Publication year: 2015
Book title : 23rd Euromicro international conference on parallel, distributed, and network-based processing (PDP 2015)
Journal name in source: 23RD EUROMICRO INTERNATIONAL CONFERENCE ON PARALLEL, DISTRIBUTED, AND NETWORK-BASED PROCESSING (PDP 2015)
First page : 365
Last page: 369
Number of pages: 5
ISBN: 978-1-4799-8490-9
ISSN: 1066-6192
DOI: https://doi.org/10.1109/PDP.2015.87(external)
Faults may occur in numerous locations of a router in a NoC platform. Compared with the faults in the data path, faults in the control path may cause more severe effects which may result in crashing the entire system. Most of the current efforts in literature focus on disabling a router when a fault is detected. Considering this level of coarse-granularity, the functioning parts of a router have to be unnecessarily disabled which may severely affect the performance or functionality of the on-chip network. To cope with this problem, in this paper we propose a mechanism to tolerate faults in the control path which largely avoid disabling a router as long as the fault is not severe. This mechanism is called DMT, standing for three distinguishing characteristics of the proposed method as fault Detection, fault Masking and fault Tolerance. The proposed mechanism can efficiently detect the faults expressed as illegal turns while it has the capability to tolerate faults without a prior knowledge on where and why a fault has happened.
