Reducers might be a good fit if you want to parallelize a concat. http://clojure.com/blog/2012/05/08/reducers-a-library-and-model-for-collection-processing.html
On Mon, Feb 10, 2014 at 4:28 PM, Gary Trakhman <gary.trakh...@gmail.com>wrote: > (apply concat (session))? > > or consider mapcat.. > > if the thing behind session needs to be concurrent, it needs to be > concurrent at that point, not in the code that calls it. There's no way to > generally make it concurrent from above unless you know more about what's > happening below. > > > On Mon, Feb 10, 2014 at 4:15 PM, Haim Ashkenazi > <haim.ashken...@gmail.com>wrote: > >> Hi JIm, >> >> The reason I don't use repeatedly is because (unless I'm mistaken) I >> would get a list of 5 outputs of session (file lists of between one and >> 5 elements each). I am interesting in taking the elements returned from >> session and concat it to what was already generated. >> >> Regarding concurrency, As I said, I don't really need it for this but I >> just thought that if the generation processed had to do some hard >> computation I would like to be able to use all CPU's. >> >> Thanks >> >> /haim >> >> >> On Mon, Feb 10, 2014 at 9:35 PM, Jim - FooBar(); <jimpil1...@gmail.com>wrote: >> >>> If `session` returns a list, why don't you just do `(take 5 >>> (repeatedly session))` ??? >>> with regards to concurrency I am not sure what you're asking...you want >>> to do the same thing from multiple threads and accumulate a global result? >>> >>> Jim >>> >>> >>> >>> On 10/02/14 18:46, Haim Ashkenazi wrote: >>> >>> Hi >>> >>> I have a simple code that generates a list of maps: >>> >>> (defn test-data >>> [nsamples] >>> (loop [acc []] >>> (if (>= (count acc) nsamples) >>> acc >>> (recur (concat acc (session)))))) >>> >>> The session function returns a list of one to five generated maps. The >>> idea is to get a list of (not much more then) nsamples generated maps. >>> This code runs fairly fast for my needs but out of curiosity I was >>> wondering how would I make it run concurrently? >>> >>> Thanks in advance >>> -- >>> Haim >>> -- >>> 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 unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> -- >>> 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 unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> >> >> -- >> Haim >> >> -- >> 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 unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
