Great, thanks! On Thu, Feb 25, 2010 at 10:29 PM, Dan Doel <dan.d...@gmail.com> wrote:
> On Friday 26 February 2010 12:13:56 am Bryan O'Sullivan wrote: > > Dan, do you think you might be releasing your port of uvector-algorithms > to > > vector any time soon? I've ported mwc-random to use vector, and I'd like > to > > move statistics (which needs uvector-algorithms) and criterion (ditto) > too. > > I don't want to hold anything up, so I've released the port to vector. It's > available on hackage as vector-algorithms 0.3: > > http://hackage.haskell.org/package/vector-algorithms > > It's mostly a straight port, so not much new to learn. > > - There's no ".Array" in the module names anymore. > > - The Schwartzian transform combinators are gone from > Data.Vector.Algorithms.Combinators, because I haven't decided on the best > way to handle those yet (the existing implementation won't work on all > vectors in the MVector class). Hope that isn't a problem. > > - There's also a new module D.V.A.Search, which so far implements a couple > variations on binary search. It was something I was starting before the > switch to vector, so it isn't complete yet. > > There are some moderate performance regressions on some of the algorithms, > but > nothing major. Also, the optimizer in 6.12 seems to get very confused when > working with IO as the PrimMonad in question, resulting in significantly > worse > performance. So, I'd recommend sticking with ST, or at least making sure > the > algorithms are called in ST, with stToIO. HEAD is better on both these > fronts, > so things should get better in the future. > > Let me know if there are any issues.* > > -- Dan > > * P.S. I just noticed I left the .cabal recommending -O2 and -fvia-c > -optc-O3. > That's obviously not current since the .cabal is set to compile with -Odph > and > with the NCG. I'll amend that in a later version. :) >
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