- -- holes = (fmap (filter (not . (getRegion coverage))) boundaries) `using` (parList rpar)
- -- holes = withStrategy (parList rpar) (fmap (filter (not . (getRegion coverage))) boundaries)
- -- holes = using (fmap (filter (not . (getRegion coverage))) boundaries) (parList rpar)
- -- holes = parMap rpar (filter (not . (getRegion coverage))) boundaries