Rentian Wirelength Estimation
Another IBM employee, Donath, discovered that Rent's rule can be used to estimate the average wirelength and the wirelength distribution in VLSI chips. This motivated the System Level Interconnect Prediction workshop, founded in 1999, and an entire community working on wirelength prediction (see a survey by Stroobandt). The resulting wirelength estimates have been improved significantly since then and are now used for "technology exploration." The use of Rent's rule allows to perform such estimates a priori (i.e., before actual placement) and thus predict the properties of future technologies (clock frequencies, number of routing layers needed, area, power) based on limited information about future circuits and technologies.
A comprehensive overview of work based on Rent's rule has been published by Stroobandt.
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