pmap already uses future/deref in its implementation. When it does so, it limits the *maximum* parallelism possible to be at most (number-of-cpus + 2) threads running at a time, and depending upon the time taken by each of the objects you are mapping over, it can be less then that.
I don't know if it would work for your purposes, but Amit Rathore created a small Clojure library called Medusa that is basically a wrapper around Java executors: https://github.com/amitrathore/medusa Andy On Wed, Sep 21, 2011 at 4:06 PM, ronen <nark...@gmail.com> wrote: > I was looking for a pure Clojure solution to run multiple non- > dependant tasks on multiple threads, iv considered using Agent, > Promises or Futures, yet the simplest cleanest succinct solution iv > found is: > > (defn email-approved [approved] > (doall (pmap deref (for [req approved] (future (email-request > req)))))) > > The only thing that I don't like about it is the use of pmap, main > since Im using the parallel mapping action just for side effects > (triggering the consumptions of futures by derefing them). > > Iv seen solution that involve Java service executor and the Work > project (https://github.com/getwoven/work), yet id rather achieve this > in pure Clojure. > > Thanks > Ronen > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
