Application-specific network-on-chip architecture customization via long-range link insertion

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 archit...

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Bibliographic Details
Main Authors: Ogras, U. Y., Marculescu, R.
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Design. Technologies. Operation analysis. Testing
Electronics
Exact sciences and technology
Integrated circuits
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Online Access:Get full text
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Summary: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 where a few application-specific long-range links are inserted on top of a regular mesh network. This way, we can better exploit the benefits of both complete regularity and partial customization. Indeed, our experimental results show that inserting application-specific long-range links significantly increases the critical traffic workload at which the network state transits from a free to a congested regime. This, in turn, results in a significant reduction in the average packet latency and a major improvement in the network achievable throughput.
DOI:10.5555/1129601.1129637