title: clojure pmap/preduce vs fork-join
body: <p>Looks like clojure <a href="http://github.com/richhickey/clojure/blob/par/src/clj/clojure/par.clj" rel="noreferrer">will have a fork-join implementation</a> which looks like a functional wrapper over java's fork join framework.</p>
  
  <p>I am wondering what the difference between these and pmap/preduce could be ?</p>