I've had this problem with eagle for years, I think I even asked Cadsoft about it once but never resolved the issue. Anyhow, maybe somebody here knows:
Occasionally after the Eagle autorouter finishes and I click the "End Route" button, it hangs for some period of time. Greyed out screen in the board editor, spinning circle. This almost always is related to using polygons. More complex boards result in a longer hang. It's been hung for about 10 minutes on a relatively complex board that I'm working on now. Windows task manager shows eagle is using 10% of the CPU. I have a six core system, so I assume that percentage is aggregated across the cores and means one core is mostly consumed.
Does anyone know, 1) what the heck it's doing, 2) how to prevent it from doing this, and 3) how to abort it short of killing the process.
Thanks,
Scott