Has anyone experimented with their stuff? As an example, say I'm fitting an ARMA model and I'm trying to assess which fit works better than others, but I want to do a bruteforce n^2 (i.e., p from 1 to n, q from 1 to n) fit until I get a decent model and I want to parallelize this, ... how would I do this without spending a fortune? If I could do this over multiple processors, even, or across multiple machines. Does anyone out there have a free solution? The current solution I have involves running commands over ssh in a python script which invokes R and has it run and write the results somewhere where I then reap the results, but I'd like something more integrated that doesn't require me to launch a full-blown R process across the entire cluster to do one calculation. FWIW, I'm using Yellow Dog Linux and Ubuntu.