TY - GEN
T1 - Temperature dependent wire delay estimation in floorplanning
AU - Winther, Andreas Thor
AU - Liu, Wei
AU - Nannarelli, Alberto
AU - Vrudhula, Sarma
PY - 2011
Y1 - 2011
N2 - Due to large variations in temperature in VLSI circuits and the linear relationship between metal resistance and temperature, the delay through wires of the same length can be different. Traditional thermal aware floorplanning algorithms use wirelength to estimate delay and routability. In this work, we show that using wirelength as the evaluation metric does not always produce a floorplan with the shortest delay. We propose a temperature dependent wire delay estimation method for thermal aware floorplanning algorithms, which takes into account the thermal effect on wire delay. The experiment results show that a shorter delay can be achieved using the proposed method. In addition, we also discuss the congestion and reliability issues as they are closely related to routing and temperature.
AB - Due to large variations in temperature in VLSI circuits and the linear relationship between metal resistance and temperature, the delay through wires of the same length can be different. Traditional thermal aware floorplanning algorithms use wirelength to estimate delay and routability. In this work, we show that using wirelength as the evaluation metric does not always produce a floorplan with the shortest delay. We propose a temperature dependent wire delay estimation method for thermal aware floorplanning algorithms, which takes into account the thermal effect on wire delay. The experiment results show that a shorter delay can be achieved using the proposed method. In addition, we also discuss the congestion and reliability issues as they are closely related to routing and temperature.
UR - http://www.scopus.com/inward/record.url?scp=84863040838&partnerID=8YFLogxK
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U2 - 10.1109/NORCHP.2011.6126741
DO - 10.1109/NORCHP.2011.6126741
M3 - Conference contribution
AN - SCOPUS:84863040838
SN - 9781457705168
T3 - 2011 NORCHIP
BT - 2011 NORCHIP
T2 - 2011 NORCHIP
Y2 - 14 November 2011 through 15 November 2011
ER -