Re: [Haskell-cafe] Parallel executing of actions

On Tue, Apr 17, 2007 at 05:49:11PM -0700, Juan Carlos Arevalo Baeza wrote:

I may be talking out of my other end here, but... if you want something like parMap to calculate all the pixels in parallel, then... can't you use parMap itself?

Something like:

weirdParMap action = sequence_ . map action . parMap (id $!)

This evaluates all the elements of the list using parMap (the expensive part, right?), and then sequentially applies the action on the current thread.

You are. I'm devoting most of my brain cells to automatic deriving of TTypeable atm, but note that id is already strict, so (id $!) is equivalent to id. Stefan