The TimberWolf placement and routing package

Abstract

TimberWolf is an integrated set of placement and routing optimization programs. The general combinatorial optimization technique known as simulated annealing is used by each program. Programs for standard cell, macro/custom cell, and gate-array placement, as well as standard cell global routing, have been developed. Experimental results on industrial circuits show that area savings over existing layout programs ranging from 15 to 62% are possible.