Coherent optimization strategies for multilevel synthesis

摘要

It is shown that coherent optimization strategies for multilevelnsynthesis should rely on a good link between the factorization, thentechnology mapping and the netlist optimization. Factorization optionsnare shown to play a key role. The technology mapping should optimizenboth area and critical path and only netlist structure preservingnoptimization techniques (buffer insertion, gate replication) should benapplied first. Only in a last step resynthesis of critical areas basednon a local view is applied. The approach has been experimented on set ofnlarge combinational benchmarks