Parallel map in haskell

Question

Is there some substitute of map which evaluates the list in parallel? I don\'t need it to be lazy.

Something like: pmap :: (a -> b) -> [a] -

Answer 1

Besides using explicit strategies yourself as Tom has described, the parallel package also exports parMap:

 parMap :: Strategy b -> (a -> b) -> [a] -> [b]

where the strategy argument is something like rdeepseq.

And there's also parMap in the par-monad package (you step out of pure Haskell, and into a parallel monad):

 parMap :: NFData b => (a -> b) -> [a] -> Par [b]

The par-monad package is documented here.