Comment by jeffreygoesto

Our graphs are hierarchical, can contain cycles, too and have a bunch of directed subgraphs. We reach 500 nodes with 20k ports and 10k edges and "getting the graph" is still possible but takes a bit of practice. Cycle breaking is okish for us, because there is a strong asymmetry between many "forward" and much less "backwards" edges that makes the heuristics succeed often.