On 02/07/13 20:05, Brian Kirkbride wrote:
One thing that I really like about blocking in acquire vs submitting
everything to an ExecutorService/CompletionService right off the bat:
you can bail out of the remainder of the computation when one part
fails. I've got a function that creates a lazy Seq that will become
empty if any application of (f x) fails. That means you don't even
schedule the remaining items. You can, of course, check and abort
inside of (f x) too. But there's a lot to like about not processing
those items at all. Especially in composed pipelines of functions.
aaa ok now we're getting slightly off just 'mapping'. I thought all you
wanted to do was a parallel map - I didn't realise there is more logic
to it (aborting and stuff)....
now it makes sense why you won't like something like this either which
can use hundreds of threads no problem :)
(->> coll
(map agent)
(map #(send-off % f)))
Jim
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