An Adaptive-Grain Thermal Simulation Method to Evaluate Effects of Spatio-Temporal Analysis Granularity upon The Thermal Behavior of VLSIs
Résumé
Recent advanced procesors become more and more power-hungry and face adverse effects caused by the nonuniform thermal distribution generated by itself. The effects have not only an impact on the performance but also the logical an dphysical reliability. In the near future, circuits designers have to consider and estimates the effects during all design stages appropriately. In this paper, we propose an adaptive-grain thermal simulation on Very Large Scale Integrated Circuits (VLSIs), and by use of the proposal, we investigate and estimate the effects of changing anlysis granularities on forming temperature profiles in digital circuits from the spatio-temporal viewpoint. Furthermore, from the simulations, focusing on the complication among some parameters ; chip area, power, variation of power density distribution, etc., and the effects upon temperature profiles, we summarized the complication as a kind of curved surfaces. Consequently, we can say that the appropriate time resolution should be determined depending on required accuracy in terms of temperature, and tolerable computation cost.
Origine : Fichiers produits par l'(les) auteur(s)
Loading...