I began processing a flow direction grid of just under 500megs early yesterday afternoon and over 18 hours later it was still running when I got into work this morning (to my surprise since I have a brand new, souped up machine). I was going to terminate the process but then thought I'd check around first to see if others had the same problem. After read this, I'm just going to let the process run all weekend (thankfully it is Friday). I'm going to be turning off all auto-updates right now so I don't get auto-rebooted right out of the process and have to start over. I'll post after the weekend how it went. I let the process run for over a week before I terminated it. I'm not sure it was working or not, but I got tired of waiting. I really wish there were some sort of progress bars for these time consuming processes in Arc so one could tell if it was actually working or not.
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