You are looking to do interprocess communication. It's a very lengthy topic.

It might be simpler to use threads (or forks's thread-like interface). You can create a pool of workers that take jobs from a queue. BrowserUk has made numerous posts on the subject.

They can report their status back via another queue (or via a shared variable if we're talking about counter).

In reply to Re^7: help with Parallel:ForkManager by ikegami
in thread help with Parallel:ForkManager by arthurs

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