> does access to > lets say second part of partitioned range cause first part to be > materialized or no?
Yes, it does. > My second question is connected to first. If we have 4 cores and *pmap *starts > 4 threads to perform our function on 4 parts of partitioned range, is this > happening in parallel, or it is not (because of partitioned ranges > dependence or something else)? It's all lazy processing, so you'll get one initial thread (I believe because of a destructuring in pmap). The rest of the threads will start as apply gets elements from "result", which may or may not be in parallel depending on scheduling and how much work needs to be done, in this case it isn't much. (partition) will produce four ranges in order, as (future) calls on each are setup by pmap, That is, pmap launches threads sequentially, each already having a range from the partition. -- 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