[Haskell-beginners] Parallel Processing in Libraries?

[Leonhard Applis]

Hi, 

I'm starting to dip into Parallel Processing with Haskell while reading "Parallel and Concurrent Programming in Haskell". 
All the Examples in the Book construct a program which is doing all the work, so with all files in the same program which has a main method. 

I'd like to have a library which utilized parallel programming (mostly for map-reduce tasks). 


Is this possible? 

My first approach of putting the par-code in my library and running the program threaded does not seem to use multiple cores. 
Also I have not seen any parallel programming in "popular" libraries (such as QuickCheck) which makes me think that I'm on the wrong path. 

To summarize my goal: 
I want to build a computation-intensive library, which utilizes multiple cores when used from an executable. 

Thank you 
Leonhard
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