Thanks, I didn't consider that. Thanks for all the advice everyone. I had a problem doing something like this: 
threads->create(\&mytest($j));

[download]
...and then reading in $j via @_ in the subroutine. This may have something to do with passing by reference via \&? Sorry, I forget what the error was but it wasn't allowed. Any ideas why?

In reply to Re^2: Did I create a concurrent program? by jweden1
in thread Did I create a concurrent program? by jweden1

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