On 30.12.2008, at 22:24, Mark H. wrote:
> On Dec 30, 9:18 am, Mibu wrote:
>> In an ideal world, standard functions like map, sort, reduce, filter,
>> etc. would know when to parallelize on their own, or even better, the
>> compiler will do it for them.
>
> The former is easier than the latter ;-
On Dec 28, 7:50 pm, Piotr 'Qertoip' Włodarek
wrote:
> On 38MB file it takes 28s, compared to 38s of similar but sequential
> version.
Another good thing is to make a simple performance model, perhaps
aided by timings of individual components, before you start
parallelizing everything ;-) How lo
On Dec 30, 9:18 am, Mibu wrote:
> In an ideal world, standard functions like map, sort, reduce, filter,
> etc. would know when to parallelize on their own, or even better, the
> compiler will do it for them.
The former is easier than the latter ;-) Even the smartest
autoparallelizing compilers
In an ideal world, standard functions like map, sort, reduce, filter,
etc. would know when to parallelize on their own, or even better, the
compiler will do it for them.
Meanwhile, I tried playing with the parallel lib (
http://clojure.org/other_libraries
) which has functions like preduce, psor
On Dec 29, 7:02 am, Chouser wrote:
> > (defn split-string-in-two [s]
> > (let [chunk-size (quot (count s) 2)]
> > [(subs s 0 chunk-size), (subs s chunk-size)]))
>
> Might this cut a word in half and produce (slightly) incorrect
> results?
True, I decided to let it be for the sake of simplici
On Dec 28, 7:50 pm, Piotr 'Qertoip' Włodarek
wrote:
> Following my recent adventure with words ranking, here's the parallel
> version:
>
> ...
> (defn parallel-top-words [in-filepath out-filepath]
> (let [string (slurp in-filepath)
'slurp' just reads the whole file in at once as a string, rig
On Sun, Dec 28, 2008 at 10:50 PM, Piotr 'Qertoip' Włodarek
wrote:
>
> Following my recent adventure with words ranking, here's the parallel
> version:
>
> (use 'clojure.contrib.duck-streams)
Thanks for including your 'use' line -- that's so much better than
leaving it implied. Please also consid
