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Home: Perl Programming Help: Beginner: same sub multiple times at once?

lukdk Novice May 4, 2017, 12:03 PM Post #1 of 6 (1373 views) same sub multiple times at once? Can't Post Hello, Do you have links to tutorials explaining how I can execute the same sub multiple times at once? I've looked a bit online and found solutions on forums explaining fork or use:threads but not really a good explanation / tutorial. something like foreach ($line, @file){ do some commands, but do them with 20 lines at a time } wkr, Luk (This post was edited by lukdk on May 4, 2017, 12:12 PM)

FishMonger Veteran / Moderator May 4, 2017, 1:15 PM Post #2 of 6 (1363 views) Re: [lukdk] same sub multiple times at once? [In reply to] Can't Post Take a look at: Parallel::ForkManager - A simple parallel processing fork manager http://search.cpan.org/~yanick/Parallel-ForkManager-1.19/lib/Parallel/ForkManager.pm IO::Async - Asynchronous event-driven programming http://search.cpan.org/~pevans/IO-Async-0.71/lib/IO/Async.pm AnyEvent - the DBI of event loop programming http://search.cpan.org/~mlehmann/AnyEvent-7.13/lib/AnyEvent.pm The first one is probably the easiest to work with.

FishMonger Veteran / Moderator May 4, 2017, 1:48 PM Post #3 of 6 (1359 views) Re: [lukdk] same sub multiple times at once? [In reply to] Can't Post Google search -> site:youtube.com YAPC forking https://www.google.com/search?q=site%3Ayoutube.com+YAPC+forking&ie=utf-8&oe=utf-8

Laurent_R Veteran / Moderator May 4, 2017, 2:33 PM Post #4 of 6 (1357 views) Re: [lukdk] same sub multiple times at once? [In reply to] Can't Post In addition to the suggestions made by FishMonger, you might also want to take a look at MCE (Many-Core Engine): http://search.cpan.org/~marioroy/MCE-1.829/lib/MCE.pod I haven't used it personally, but I have seen good reviews and very positive comments on it.

lukdk Novice May 6, 2017, 11:32 AM Post #5 of 6 (1346 views) Re: [Laurent_R] same sub multiple times at once? [In reply to] Can't Post what does this mean? my $pm = Parallel::ForkManager->new($MAX_PROCESSES); it's the arrow command i'm not understanding. it's declaring a var with name $pm, which gets the value of a result of a sub called from a module declared with the use command but then the arrow? maybe a link to another manual? :) guess my first question was too hard for me to understand the answers :) (This post was edited by lukdk on May 6, 2017, 11:44 AM)

BillKSmith Veteran May 6, 2017, 1:21 PM Post #6 of 6 (1335 views) Re: [lukdk] same sub multiple times at once? [In reply to] Can't Post This statement uses perl's "object oriented" syntax. Refer Object-Oriented Programming in Perl Tutorial The variable $pm is an object, or more accurately, a reference to an object. Good Luck, Bill

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