Don Stewart wrote:
rl:
Don Stewart wrote:
I forgot to mention this early, but possibly you could use the ndp array
library. There are some people using its UArr type for (non parallel)
strict arrays, that support map/fold/zip et al.
http://darcs.haskell.org/packages/ndp/
This blog post recently,
http://sequence.complete.org/node/371
shows at least one non-developer is using it :)
Roman, what do you think -- are the unlifted, non-parallel arrays usably
`beta'?
Yes, they definitely are. UArr uses stream fusion, BTW, so things should
fuse sometimes.
On a more general note, we plan to put a generally usable UArr-like
layer underneath the current standard array types eventually. This would
provide all interesting operations as well as fusion. It might take a
while (i.e., months) until I get around to doing it, though.
Would it be possible to separate out the UArr modules from the larger
ndp project (which needs ghc head and type families). I.e. just one
smaller package for fast, fusable arrays we can work on?
UArr is a type family, too! That said, it would definitely be possible
to put it into a separate package. The interface needs some work,
though, since it is very "backendish" at the moment. The problem is that
I don't really have time for this at the moment. If anyone volunteers to
do this I'll help, of course.
Roman
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