graywolf is a program for placement of VLSI digital circuits, mainly intended as part of qflow tool-chain (http://opencircuitdesign.com/qflow/). It is a fork of the last open-source version of TimberWolf (which is now commercial software) and has been modified to streamline the build process and make it behave more as a standard command-line tool. It is based on the general combinatorial optimization technique known as simulated annealing and is suitable for standard cell, macro/custom cell, and gate-array professional-grade placement.
WWW: https://github.com/rubund/graywolf
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