Hi -
I'm trying to compile DotP.hs from
http://www.haskell.org/haskellwiki/GHC/Data_Parallel_Haskell#A_simple_example
(see
below)
The compiler complains and says (twice in fact):
DotP.hs:17:33: Not in scope: `fromPArrayP'
Could someone help me out please? Thanks a lot!
Peter
{-# LANGUAGE ParallelArrays #-}{-# OPTIONS_GHC -fvectorise #-}
module DotP (dotp_wrapper)where
import qualified Preludeimport Data.Array.Parallel.Preludeimport
Data.Array.Parallel.Prelude.Double
dotp_double :: [:Double:] -> [:Double:] -> Double
dotp_double xs ys = sumP [:x * y | x <- xs | y <- ys:]
dotp_wrapper :: PArray Double -> PArray Double -> Double{-# NOINLINE
dotp_wrapper #-}
dotp_wrapper v w = dotp_double (fromPArrayP v) (fromPArrayP w)
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