Dude, read the other posts before replying,

I did, no one mentioned to him how to bring in his huge file, and effectively split it, in order to hand them off to his threads for the parallel-processing. The OP asked I am reading and processing a huge file and recording results to another file which takes hundreds of hours. I want to run this task in multithreads..

How is it wrong to show how to get his input file split into bite sized chunks for his threads? I question whether you understand what needs to be done in an actual program. Maybe you didn't actually look at the link I provided? I showed him the various ways to achieve the first step needed for his code. See How to break up a long running process for some parallel processing usage.

I'm not really a human, but I play one on earth.
Old Perl Programmer Haiku

In reply to Re^3: Using fork for reading and processing a large file in ActiveState perl by zentara
in thread Using fork for reading and processing a large file in ActiveState perl by vit

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