Thanks for clearing that up. I think someone else on here pointed that out as well as the fact that Matlab and some other tools provide that for you as part of your license/subscription fee. I started digging around and found out that it seems like the suitesparse author is one of the top authorities in this area and therefore, it might not be super realistic to get something as fast or faster on your own. Maybe a big enough open-source project could do it though. Any thoughts on this?