Hey,
Reducers is fascinating and quite complex at the same time. I feel like
best practices around it has not quite solidified yet.
Here is how I made your example work:
(ns group-by-reducers.core
(:require [clojure.core.reducers :as r :only [fold reduce map]])
(:require [criterium.core
BTW I understood the most about reducers (still not quite there yet, though
:) ) from Rich Hickey's talk at EuroClojure:
https://vimeo.com/45561411
On Friday, December 7, 2012 10:21:59 AM UTC+1, Balint Erdi wrote:
Hey,
Reducers is fascinating and quite complex at the same time. I feel like
You're welcome :)
On Fri, Dec 7, 2012 at 1:12 AM, Anton Holmberg antonholmber...@gmail.comwrote:
This is so awesome! You are my hero. Been searching for this for a while
now.
Den måndagen den 12:e november 2012 kl. 17:25:38 UTC+1 skrev Jonathan
Fischer Friberg:
Dear clojure mailing list,
Hi,
I couldn't make it to the skill matters conference in London ))-:
just being curious,... how was it? Any news? was there a main theme?
Many Greetings
John
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
It was really great, all the videos are up already:
http://skillsmatter.com/event/scala/clojure-exchange-2012
Have a look.
Thomas
On Friday, December 7, 2012 10:59:32 AM UTC, john wrote:
Hi,
I couldn't make it to the skill matters conference in London ))-:
just being curious,... how was
Hi,
There are indeed too much allocationfoing on in your r/map.
You don't need the rmap,
Start from a plain old reduce like your reduce-by-naive, replace reduce by
r/fold, remove the seed and add the combine-fn (which now provides the
seed):
(defn group-by-red [f coll]
(r/fold
(partial
Thanks a lot Thomas
... I am looking forward to the not yet published podcast 18:00 - late
Clojurex drinks
Am Freitag, 7. Dezember 2012 12:33:20 UTC+1 schrieb Thomas:
It was really great, all the videos are up already:
http://skillsmatter.com/event/scala/clojure-exchange-2012
Have a look.
Hi,
shouldn't
(fn [groups a]
(assoc groups (f a) (conj (get groups a []) a)))
be
(fn [groups a]
(let [k (f a)]
(assoc groups k (conj (get groups k []) a
?
Las
2012/12/7 Christophe Grand christo...@cgrand.net
Hi,
There are indeed too much allocationfoing on in
Absolutely
On Fri, Dec 7, 2012 at 1:29 PM, László Török ltoro...@gmail.com wrote:
Hi,
shouldn't
(fn [groups a]
(assoc groups (f a) (conj (get groups a []) a)))
be
(fn [groups a]
(let [k (f a)]
(assoc groups k (conj (get groups k []) a
?
Las
Thank you, Christophe, that makes total sense.
Interestingly, on my machine, the reducers version is still slower:
Run # 0
Elapsed time: 1105.586 msecs
Elapsed time: 685.8 msecs
Elapsed time: 549.969 msecs
Run # 1
Elapsed time: 497.831 msecs
Elapsed time: 489.932 msecs
Elapsed time: 520.38 msecs
Hi Evan,
Brenton Ashworth said that this kind of options should not be added to the
compiler, but to the tools that use the compiler.
Could yowl please give me some advice from where to start patching
lein-cljsbuild following Brenton advice?
Thank so much
Mimmo
Here is Brenton comment on
With help from some friends, I am starting a new FP group here in Western
Massachusetts:
http://www.meetup.com/Functional-Programming-Connoisseurs/
From the meetup.com description:
Open to any and all that have functional and logical tastes in programming
languages and data models.
I chimed in on the patch. Taking Brenton's approach sounds like it would be
significantly simpler and require a very small patch to lein-cljsbuild.
On Fri, Dec 7, 2012 at 1:24 PM, Mimmo Cosenza mimmo.cose...@gmail.comwrote:
Hi Evan,
Brenton Ashworth said that this kind of options should not
I opened a report on ST2's userecho a long time ago about the terrible
indentation. If you'd like to see if fixed in Sublime Text 2 itself, please
upvote:
http://sublimetext.userecho.com/topic/98139-clojure-auto-indentation-is-almost-never-correct/
On Monday, November 12, 2012 10:25:38 AM
'Late Clojurex drinks' was an incredible talk. It changed the very way I
view and interact with the the world.
On another note all the recordings are now actually up!
I particularly enjoyed Sam Aaron's one
http://skillsmatter.com/podcast/home-27/live-programming-with-clojure/mh-6189
On Friday,
I'm a clojure newbie. Why does the compiler complain about being unable to
resolve cube-root-recur on line 17? thanks
1 (def cube-root
2 (fn [n]
Hi everyone,
Very pleased to have handed in my final honours dissertation today. Thanks
to all that submitted corrections and offered encouragement.
https://github.com/downloads/frenchy64/papers/ambrose-honours.pdf
Cheers,
Ambrose
--
You received this message because you are subscribed to the
On Friday, December 7, 2012 at 2:35 PM, Chas Emerick wrote:
With help from some friends, I am starting a new FP group here in Western
Massachusetts:
I just thought that I would mention that I've also recently started a FP group
in Providence, Rhode Island; our second meeting is on Jan. 28 at
Congrats! :)
David
On Fri, Dec 7, 2012 at 7:33 AM, Ambrose Bonnaire-Sergeant
abonnaireserge...@gmail.com wrote:
Hi everyone,
Very pleased to have handed in my final honours dissertation today. Thanks
to all that submitted corrections and offered encouragement.
I've been running compute intensive (multi-day), highly parallelizable Clojure
processes on high-core-count machines and blithely assuming that since I saw
near maximal CPU utilization in top and the like that I was probably getting
good speedups.
But a colleague recently did some tests and
Lee:
I'll just give a brief description right now, but one thing I've found in the
past on a 2-core machine that was achieving much less than 2x speedup was
memory bandwidth being the limiting factor.
Not all Clojure code allocates memory, but a lot does. If the hardware in a
system can
Thanks Andy.
My applications definitely allocate a lot of memory, which is reflected in all
of that consing in the test I was using. It'd be hard to do what we do in any
other way. I can see how a test using a Java mutable array would help to
diagnose the problem, but if that IS the problem
On Dec 7, 2012, at 5:25 PM, Lee Spector wrote:
Another strange observation is that we can run multiple instances of the test
on the same machine and (up to some limit, presumably) they don't seem to
slow each other down, even though just one instance of the test appears to be
maxing out
23 matches
Mail list logo
