One option would be to use the spreadsheet export functionality in PAT to generate an OpenStudio Analysis Spreadsheet. The github repo for how to run and use the spreadsheet is found here. This will allow you to run your PAT project and use the algorithmic capability of OS-Server on EC2, however you wont be in the PAT world anymore.
Another option for running OS-Server jobs is to create local OS-Servers on your other machines using Vagrant, VirtualBox and Chef. Instructions on how to do this are found on the github page. This will allow you to submit model runs to your own OS-Server instances instead of EC2. This workflow is how we test and develop new OS-Server code, however it is a bit more involved than just running on EC2.
I can't be the first one to come up with that question, but I couldn't find anything online... Apologies if I just missed it
I edited your question to avoid confusion about running OSP projects on network drives
@Julien, do you use a popular cluster scheduler like condor or SGE or do you have your own scripted/manual process for this?
Right now I've got squat, but I'm thinking about it considering I have 2-3 computers on standby I could use, and I'm knee deep into PAT runs right now. (You just got a shoot-out in the Autotune email, congrats)