I've heard from the OLCF that yt is installed on titan now. The installation was done by Fernanda Foertter (firstname.lastname@example.org). She is happy to hear about issues, and relayed that a known issue is that the LaTeX portion of the dependencies is broken. I haven't gotten on and tried it yet.
-- Michael Zingale Associate Professor
Dept. of Physics & Astronomy • Stony Brook University • Stony Brook, NY 11794-3800 phone: 631-632-8225 e-mail: Michael.Zingale@stonybrook.edu web: http://www.astro.sunysb.edu/mzingale