Deploy spectral inference to TACC

[gully]

I got 1529 MCMC samples in 2h22m, projecting about 7.7 hours for 5000 samples on my 12 thread laptop. I'd expect TACC's 40+ threads to be about 3 times as fast for 40 emcee walkers, so about 2.5 hours per spectral order.

With 40 orders per IGRINS spectrum, 4 epochs, and 2 components per epoch, that's 320 spectral orders.

All together that's 800 hours on TACC--- a single node for 33 days, or 33 nodes for 1 day.

Typically we'd need to re-run certain failed runs, or with new boundaries or recipes. In my experience this fudge factor is at least 2. So 66 node-days.