How does Incanter work on HPC? R is pretty awful from that point of view, and if there ever will be room for a specialised statistical language it's got to be able to do massive number crunching.

I've heard bad things of JVM for tightly coupled jobs on HPC (though I know there's been some improvement: e.g. a lot of work done by EPCC in Edinburgh). Does Clojure manages to offer a good parallel implementation on top of the JVM or has no work been done in this area?