Parallelising maximum likelihood fit with RooFit

Hi, I am aware of a few implementations to parallelise maximum likelihood calculations for use on clusters through OpenMP and MPI (Lazzaro et al). I also see that there is Proof support for toy studies in RooFit.

My question is whether there is any simple to use the standard RooFit installation to parallelise a maximum likelihood fit through a qsub batch job, i.e. by making intemiadiary calls to RooFit and saving the PDF values to file before calculating the final NLL. Failing this, any information about the latest standard approach to calculating an NLL on a cluster would be most appreciated.