Hi,
Right now I'm processing 2807 photo's. It's been running for nine hours and thirty five minutes with an estimated one hundred and sixteen hours and forty five minutes to go for alignment alone.
The images are extracted from a video with many clear features high contrast values and colors and high overlap - it should be an easy alignment.
Running projects with fewer photo's ~1200 only takes about eight hours.
I am running on a MacBook Retina with 16gb of ram.
Any ideas of what could be the cause?