Immediate Neighbourhood Temperature Adaptive Routing for Dynamically Throttled 3-D Networks-on-Chip

Kumar, S.S.; Zjajo, Amir; van Leuken, T.G.R.M.

doi:10.1109/TCSII.2015.2503613

Immediate Neighbourhood Temperature Adaptive Routing for Dynamically Throttled 3-D Networks-on-Chip

Journal article (2017)

Authors

S.S. Kumar Signal Processing Systems -

Amir Zjajo Signal Processing Systems -

T.G.R.M. van Leuken Signal Processing Systems -

Research Group

Signal Processing Systems () (TU Delft)

DOI: https://doi.org/10.1109/TCSII.2015.2503613

Power management Thermal management 3D Networks-on-chip Adaptive routing

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Published Date

2017

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Signal Processing Systems

Abstract

In this paper, we present the Immediate Neighbourhood Temperature (INT) routing algorithm which balances thermal profiles across dynamically-throttled 3D NoCs by adaptively routing interconnect traffic based on runtime temperature monitoring. INT avoids the overheads of system-wide temperature monitoring by relying on the heat transfer characteristics of 3D integrated circuits which enable temperature information from routers in the immediate neighbourhood to guide adaptive routing decisions. Experimental results indicate that INT yields balanced thermal profiles with upto 25% lower gradients than competing schemes, and shortens communication latencies by decreasing average network congestion by upto 50%, with negligible overheads.

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