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  1. Proceedings of the International Workshop on System Level Interconnect Prediction (SLIP '12)
  2. Handling global traffic in future CMP NoCs
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Interconnect scaling into the sub-10nm regime
Design and optimization of communication fabrics: an industrial perspective
Towards the power networks of the future: needs, challenges and tools
Energy-guided exploration of on-chip network design for exa-scale computing
Heterogeneity and interconnect
Impact of lithography retargeting process on low level interconnect in 20nm technology
Optimizing heterogeneous NoC design
A heuristic method for obstacle avoiding group Steiner tree construction
An on-chip global broadcast network design with equalized transmission lines in the 1024-core era
Handling global traffic in future CMP NoCs
A locality-aware bi-level mesh-mesh 2d-noc architecture for future thousand core CMPs
Improving broadcast efficiency in wireless sensor network time synchronization protocols
Analysis of post-placement length estimation

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Handling global traffic in future CMP NoCs

Content Provider ACM Digital Library
Author Kolodny, Avinoam Manevich, Ran Cidon, Israel
Abstract It was recently shown that if computation locality is properly employed, Chip-Multi-Processors (CMP) traffic patterns can be modeled with a bandwidth version of Rent's rule. The Communication Probability Distributions (CPD) derived from the Rent's rule imply that most end to end packets are exchanged by nearest-neighbors. We show that while packets exchanged with nearest-neighbor dominate peer to peer traffic, their contribution to the overall NoC traffic decreases rapidly as the system grows. Correspondingly, the absolute bandwidth consumed by long distance packets (a.k.a. global packets) becomes dominant starting from medium-size systems, despite their low injection rate. To accommodate this phenomenon, we introduce PyraMesh -- a novel family of multilevel hierarchical 2D mesh topologies resembling a pyramid structure. In PyraMesh, global packets are separated from the local ones and routed through the upper levels of the hierarchy. PyraMesh is shown to improve light-load latencies and raise the saturation point of the network to higher injection rates, as compared with previously presented NoC topologies.
Starting Page 40
Ending Page 47
Page Count 8
File Format PDF
ISBN 9781450314374
DOI 10.1145/2347655.2347671
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2012-06-03
Publisher Place New York
Access Restriction Subscribed
Subject Keyword 2d mesh hierarchical networks-on-chip Nocs Rent's traffic
Content Type Text
Resource Type Article
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