...making Linux just a little more fun!
Ben Okopnik [ben at linuxgazette.net]
As sometimes happens, shortly - or not so shortly - after we finish a discussion in TAG, more info about the problem pops up out of nowhere, usually as a result of a completely unrelated Google search. I swear, if we were to have a discussion about Martian blood-drinking weasels, next week I'd run into a "The Vampire Mustelids of Ares: A Personal Interview" while searching for soap-scum removal info...
Anyway, Karl-Heinz: while I was fiddling about trying to come up with a "max-spread" sorting algorithm [1], I ran across a reference to Parallel::ForkManager on 'http://perlmonks.org'. Doing a quick lookup on CPAN came back with this (snipped from the documentation):
This module is intended for use in operations that can be done in parallel where the number of processes to be forked off should be limited. Typical use is a downloader which will be retrieving hundreds/thousands of files. The code for a downloader would look something like this: [...]This sounds like exactly the kind of thing you were describing. It allows nicely fine-grained individual control of the child processes, etc. - take a look!
http://search.cpan.org/author/DLUX/Parallel-ForkManager-0.7.5/ForkManager.pm
There's also Parallel::ForkControl -
http://search.cpan.org/author/BLHOTSKY/Parallel-ForkControl-0.04/lib/Parallel/ForkControl.pm
[1] For the mathematicians among us, you might find this to be fun. See my next post.
-- * Ben Okopnik * Editor-in-Chief, Linux Gazette * http://LinuxGazette.NET *
Karl-Heinz Herrmann [kh1 at khherrmann.de]
Hi Ben,
On Wed, 4 Jul 2007 22:37:56 -0400 Ben Okopnik <[email protected]> wrote:
> Anyway, Karl-Heinz: while I was fiddling about trying to come up with a > "max-spread" sorting algorithm [1], I ran across a reference to > Parallel::ForkManager on 'http://perlmonks.org'. Doing a quick lookup on > CPAN came back with this (snipped from the documentation):
Hmm...
> This module is intended for use in operations that can be done in > parallel where the number of processes to be forked off should be > limited. Typical use is a downloader which will be retrieving > hundreds/thousands of files.
yes -- doesn't hit my problem directly (one thread which is not breaking down would be good enough) but sounds very interesting for other applications.
> http://search.cpan.org/author/DLUX/Parallel-ForkManager-0.7.5/ForkManager.pm > > There's also Parallel::ForkControl - > > http://search.cpan.org/author/BLHOTSKY/Parallel-ForkControl-0.04/lib/Parallel/ForkControl.pm
Thanks for the links...
K.-H.