STEFAL: A System Level Temperature- and Floorplan-Aware Leakage Power Estimator for SoCs

  • Authors:
  • Aseem Gupta;Nikil D. Dutt;Fadi J. Kurdahi;Kamal S. Khouri;Magdy S. Abadir

  • Affiliations:
  • University of California, Irvine;University of California, Irvine;University of California, Irvine;Freescale Semiconductor Inc., Austin, TX;Freescale Semiconductor Inc., Austin, TX

  • Venue:
  • VLSID '07 Proceedings of the 20th International Conference on VLSI Design held jointly with 6th International Conference: Embedded Systems
  • Year:
  • 2007

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Abstract

In this paper we demonstrate the impact of the floorplan on the temperature-dependent leakage power of a System on Chip (SoC). We propose a novel system level temperature aware and floorplan aware leakage power estimator, STEFAL, which considers both the floorplan of the SoC and the cycle-by-cycle dynamic power behavior while estimating the leakage power. We implemented our estimation methodology on ten industrial SoC designs from Freescale Semiconductor Inc. and observed up to a 190% difference in the leakage power between various floorplans, clearly showing the importance of considering the floorplans and the temperature profile during leakage power estimation.