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Potato44
Potato44
06:53
@Mego Have you read Parallel and Concurrent Programming in Haskell?
2
It has an explanation of how these parallel bits work
Anonymous
@Potato44 I have not. I'll give it a read. Thanks
Anonymous
07:41
@Potato44 That book is a really useful resource. I think I'm getting the hang of parallelism in Haskell now
Anonymous
If I'm understanding things correctly, this should be a parallel zipWith
Potato44
Potato44
11:40
@Mego I think that is the correct implementation. I have read that book but I don't exactly remember how to use them.
actually I think that the rseq needs to be changed to rpar to actually be in parallel, will have to reread the book to be sure though
Potato44
Potato44
11:54
From reading the source code I think parList takes care of the parellism itself so rseq is fine
 
9 hours later…
Anonymous
21:07
@Potato44 Yep, parList applies the map to each element in parallel. The ending rseq seems to act like join in thread-based concurrency - it waits for all of the parallel tasks to be executed.

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