I think if you want slow and frugal, you stop using cloud. Cloud's advantages don't matter that much for batch jobs with long wait time. Need more machines to

I think if you want slow and frugal, you stop using cloud. Cloud's advantages don't matter that much for batch jobs with long wait time. Need more machines to handle unusual load? Just let the queue grow, if the thing are still bad next week, we'll order a few more nodes. Machine went down? We can wait until tomorrow when sysadmins can troubleshoot.