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"It’s a small world after all": NoC performance optimization via long-range link insertion (2006)
| Venue: | IEEE TRANS. VERY LARGE SCALE INTEGRATION SYSTEMS |
| Citations: | 62 - 8 self |
BibTeX
@ARTICLE{Ogras06"it’sa,
author = {Umit Y. Ogras and Radu Marculescu},
title = {"It’s a small world after all": NoC performance optimization via long-range link insertion},
journal = {IEEE TRANS. VERY LARGE SCALE INTEGRATION SYSTEMS},
year = {2006},
volume = {14},
number = {7},
pages = {693--706}
}
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Abstract
Networks-on-chip (NoCs) represent a promising solution to complex on-chip communication problems. The NoC communication architectures considered so far are based on either completely regular or fully customized topologies. In this paper, we present a methodology to automatically synthesize an architecture which is neither regular nor fully customized. Instead, the communication architecture we propose is a superposition of a few long-range links and a standard mesh network. The few application-specific long-range links we insert significantly increase the critical traffic workload at which the network transitions from a free to a congested state. This way, we can exploit the benefits offered by both complete regularity and partial topology customization. Indeed, our experimental results demonstrate a significant reduction in the average packet latency and a major improvement in the achievable network through with minimal impact on network topology.
Keyphrases
long-range link insertion small world noc performance optimization minimal impact application-specific long-range link achievable network network transition standard mesh network promising solution communication architecture complete regularity congested state on-chip communication problem average packet latency significant reduction customized topology noc communication architecture network topology long-range link critical traffic workload partial topology customization experimental result major improvement
