Efficient multicast schemes for 3-D Networks-on-Chip
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Abstract3-D Networks-on-Chip (NoCs) have been proposed as a potent solution to address both the interconnection and design complexity problems facing future System-on-Chip (SoC) designs. In this paper, two topology-aware multicast routing algorithms, Multicasting XYZ (MXYZ) and Alternative XYZ (AL + XYZ) algorithms in supporting of 3-D NoC are proposed. In essence, MXYZ is a simple dimension order multicast routing algorithm that targets 3-D NoC systems built upon regular topologies. To support multicast routing in irregular regions, AL + XYZ can be applied, where an alternative output channel is sought to forward/replicate the packets whenever the output channel determined by MXYZ is not available. To evaluate the performance of MXYZ and AL + XYZ, extensive experiments have been conducted by comparing MXYZ and AL + XYZ against a path-based multicast routing algorithm and an irregular region oriented multiple unicast routing algorithm, respectively. The experimental results confirm that the proposed MXYZ and AL + XYZ schemes, respectively, have lower latency and power consumption than the other two routing algorithms, meriting the two proposed algorithms to be more suitable for supporting multicasting in 3-D NoC systems. In addition, the hardware implementation cost of AL + XYZ is shown to be quite modest. © 2013 Elsevier B.V. All rights reserved.
All Author(s) ListWang X., Yang M., Jiang Y., Palesi M., Liu P., Mak T., Bagherzadeh N.
Journal nameJournal of Systems Architecture
Volume Number59
Issue Number9
PublisherElsevier BV
Place of PublicationNetherlands
Pages693 - 708
LanguagesEnglish-United Kingdom
KeywordsMulticast, Networks-on-Chip (NoCs), Routing algorithms

Last updated on 2020-20-10 at 03:24