A decentralised, autonomous, and congestion-Aware thermal monitoring infrastructure for photonic network-on-chip

W. Buter, Y. Huang, D. Gregorek, A. Garcia-Ortiz

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)

Abstract

Optical network-on-chips (oNoCs) are a promising candidate to replace electrical NoCs in many-core systems. Nanophotonic components provide high bandwidth and short transmission delay but they are very sensitive to the temperature. Temperature gradients are typically found on many-core systems. The precise reconstruction of the core's temperature and the prediction of its evolution are an inevitable requirement for an effective thermal management in oNoCs. In this work we present the first distributed and autonomous thermal monitoring infrastructure for oNoCs. It copes with the intrinsic temperature sensor's noise, provides accurate thermal predictions, and requires low communication overhead. Our approach combines Kalman filters, linear predictors, local data and global transmission to achieve an efficient implementation. The work reports a thorough analysis at the gate-level of the area overhead incurred by the communication and computation sub-modules. It shows the practicability of the approach. Further, experimental results for a 16-core SoC demonstrate that our prediction model is able to reduce by more than 92% the communication requirements of the monitoring infrastructure.
Original languageEnglish
Title of host publication10th International Symposium on Reconfigurable and Communication-centric Systems-on-Chip, ReCoSoC 2015
ISBN (Electronic)978-1-4673-7942-7
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event10th International Symposium on Reconfigurable Communication-centric Systems-on-Chip, ReCoSoC 2015 - Bremen, Germany
Duration: 29 Jun 20151 Jul 2015
Conference number: 10

Conference

Conference10th International Symposium on Reconfigurable Communication-centric Systems-on-Chip, ReCoSoC 2015
Abbreviated titleReCoSoC 2015
CountryGermany
CityBremen
Period29/06/151/07/15

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