I was wondering that, too. My guess is that he's using this as a (large) set of test data to test his "recipes" and has to do that a lot. Having to run many nine-hour trials serially is painful.
Not sure I'd have bothered, but it's a defensible choice. And produced this interesting example of comparable implementations.
Not sure I'd have bothered, but it's a defensible choice. And produced this interesting example of comparable implementations.