Architectural-level prediction of interconnect wirelength and fanout

This paper proposes accurate architectural-level interconnect wirelength and fan-out models. Existing models are based on Rent´s rule and fail to capture the impact of microarchitectural and implementation parameters. Hence, significant deviation is observed when validated against implementation data, i.e., up to 79% (22%) in total wirelength (average fanout). Our proposed models both enable architectural-level prediction of interconnect wirelength and fanout, and show significant accuracy improvement vs. existing models with respect to layout data.