Collaborative thermal- and traffic-aware adaptive routing scheme for 3D network-on-chip systems

Abstract

Due to the stacking dies and unequal cooling effiency of different layers, 3D NoC-based systems suffer sever thermal issues. Adaptive routing can alleviate the thermal issues, but current routing algorithms either suffer from the thermal balance or traffic congestion. This paper proposed a collaborative thermal- and traffic-aware adaptive routing (CTTAR) scheme, which considers the traffic and temperature information together and avoids the packets transferring to congested region. Experiments show that, there is 19.4% to 48.4% system performance improvement compared with other routing algorithms under the same thermal limit.