I had my machine go down last week, and I'm only now getting back to this. I just tried a couple runs and had two issues:

1) It takes a *long* time to run >30min....I think the previous version was <5min on the same machine. Did it use to be an incremental process? Most of results don't change between runs, so does it need to re-process everything? Can it just check timestamp (or maybe checksum) of the result sets?

2) When I completed uploading, the results page then gave a "Error extracting file: The specified zipfile was not found." instead of showing the matrix. Do we know what causes this? Is it possibly because two people were uploading at the same time? Could we have the script place a small lock file into the upload directory that the script could check for before attempting an upload, then delete when completing (or have it time out if a upload fails)?