Hello, Clojurians!
We all know that Clojure is *awesome* in the small — it's a pleasure to
develop stuff with it on the level of a function or namespace. However,
what still evades me is how to program in Clojure in the large: how to
structure, say, web service in general; how should you
In theory, yes. In practice, it will not scale well.
Here is why: optimal planning is, in general, a problem with at least
exponential complexity. When you have complexity like this, you can choose
between two approaches:
1) explore the whole search space, trying very hard to prune and discard
For some time I had a suspicion that in Clojure we have a fundamental
problem with efficient math and today I've tried to test it.
Let's say we have a pretty simple function:
(ns testapp.core
(:require
[criterium.core :as cr]
[primitive-math :as p]
[no.disassemble :as nd]))
(set!
)))
Andy
On Sun, Apr 6, 2014 at 9:44 AM, Dmitry Groshev
lambda...@gmail.comjavascript:
wrote:
For some time I had a suspicion that in Clojure we have a fundamental
problem with efficient math and today I've tried to test it.
Let's say we have a pretty simple function:
(ns testapp.core
Hello, Clojurians!
GSoC application deadline is dangerously close and it's time to fill an
application, at last. But here is a problem: I don't know what will be the
best for community. I have a few ideas and I will present them here to get
some feedback. Sorry for a bit late posting!
First:
And here is a link to the project, just in case you've missed it like I
did: https://github.com/magnars/stasis :)
On Thursday, January 23, 2014 2:16:48 PM UTC+4, Magnar Sveen wrote:
Stasis
A Clojure library of tools for developing static web sites.
I've managed to get an NPE in print-stack-trace:
https://gist.github.com/si14/e8d22913d21933d12ef1
It seems highly counter-intuitive to me that this function can throw NPEs.
I thought it's intended to be used in catch clauses; does it mean that I
should wrap some catches in their own
:01 PM, Dmitry Groshev
lambda...@gmail.comjavascript:
wrote:
In this mail I'm talking about Clojure 1.4, however, I believe that the
issue persists in later versions, too.
I have quite a lot of code of the following form:
(defprotocol sum-proto
(sum [x y]))
(deftype Pair
[^long
I'm curious how this relates to core.logic. If I understand correctly,
Clara can be compiled to core.logic and utilize it's search, doesn't it?
On Tuesday, September 24, 2013 6:16:12 AM UTC+4, Ryan Brush wrote:
This is the first release of Clara, forward-chaining rules in Clojure.
Details
, or wiring
them together. The engine then runs the rules against a set of input and
ensures the working memory reaches a consistent state.
I wrote about this in more depth here:
https://github.com/rbrush/clara-rules/wiki/Introduction
On Tuesday, September 24, 2013 5:41:01 AM UTC-5, Dmitry Groshev
Today Google Summer of Code finally ends. NDArray is pretty stable now and
will be the default implementation used by core.matrix in the upcoming
release. It was an epic journey through bugs, unexpected slowness and weird
macros, but now I can proudly state that in some cases NDArray can be
In this mail I'm talking about Clojure 1.4, however, I believe that the
issue persists in later versions, too.
I have quite a lot of code of the following form:
(defprotocol sum-proto
(sum [x y]))
(deftype Pair
[^long a ^long b]
sum-proto
(sum [x y]
(let [^Pair y y
I've summarized a couple of things that wasn't obvious to me when I started
to work on core.matrix's macroses. Comments are appreciated:
http://si14.livejournal.com/51576.html
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Great stuff!
I'm wondering what's the realworld difference between JaCoP and CHOCO.
Why did you choose the former?
On Tuesday, September 10, 2013 5:39:46 AM UTC+4, Alex Engelberg wrote:
http://github.com/aengelberg/clocop
CloCoP is a Clojure wrapper of the Java library JaCoP. The acronyms
So it's the mid-point of GSoC and a good time to review what's already done
and what is yet to be done.
The main focus of first half of the summer was making NDArray work. NDArray
is a new implementation of core.matrix protocols, intended to become the
default one. It's implemented in pure
Hello all.
I have a following deftype:
(deftype NDArray
[^objects data
^long ndims
^longs shape
^longs strides])
(
https://github.com/si14/matrix-api/blob/70b376f58ec3846df6622b971001c3ade32d0725/src/main/clojure/clojure/core/matrix/impl/ndarray.clj#L30
)
Then, when I use
Jason, can you please help me with this:
I'm not sure if the protocol-based implementation can give users any help
writing new core operations efficiently (say, making a new array with
c[i] = a[i] + b[i]^2 / 2) -- unless there's some clever way of
combining protocols with macros (hmmm).
July 2013 15:41:02 UTC+1, Dmitry Groshev wrote:
Hello all.
I have a following deftype:
(deftype NDArray
[^objects data
^long ndims
^longs shape
^longs strides])
(https://github.com/si14/**matrix-api/blob/**
70b376f58ec3846df6622b971001c3**ade32d0725/src/main/clojure
This message is a copy of a blog post [1]. All my GSoC posts will be
available under tag gsoc [2].
As I've announced in my Twitter some time ago, I was selected to
participate in Google Summer of Code of this year. My particular assignment
will be to implement N-Dimensional array in Clojure so
Thank you. I've found it yesterday, too; just in time :)
On Wednesday, May 29, 2013 7:42:58 AM UTC+4, Ben Mabey wrote:
On Tue May 28 02:40:33 2013, Dmitry Groshev wrote:
Sorry, I wasn't clear enough in my proposal.
I've mentioned clojurecheck [1] in it and the possibility of extending
Hello, Clojurians.
I was selected during GSoC process to implement a core.matrix-compatible
NDArray in Clojure. More info about this project can be found at [1] and
[2]. However, I would be really happy to know if there are any comments,
wishes or feature requests regarding that proposals
mention of QuickCheck, I couldn't find it in
the proposal.
Thanks,
Ambrose
On Tue, May 28, 2013 at 4:25 PM, Dmitry Groshev
lambda...@gmail.comjavascript:
wrote:
Hello, Clojurians.
I was selected during GSoC process to implement a core.matrix-compatible
NDArray in Clojure. More info about
One more (kinda obvious):
https://github.com/Prismatic/plumbing
On Friday, May 10, 2013 6:26:42 PM UTC+4, John Hume wrote:
On Thu, May 9, 2013 at 7:15 PM, Dave Sann dave...@gmail.com javascript:
wrote:
There are several projects that provide a bunch of base level/common
functions and
An Erlang fanboy here.
There is very prevalent opinion that Erlang is about multicore and
scalability and such. The truth is that it's completely wrong. Erlang
wasn't even multithreaded until early 2000s (if I recall correctly); all
it's green threads and message passing and such are designed
I would really like to try to participate this year too. I was thinking
about porting ClojureScript to ErlangVM (BEAM); not in fully compatible
with standard JS-CLJS way, I think, but at least as an alternative
language for BEAM. There is a clear lack of decent language for hard
problems now
It would be *really* nice to see latencies as well. Some webservers trade
latency to throughput, and there is no point in throughput if your service
is hardly usable due to 100ms+ responses.
On Wednesday, January 16, 2013 10:56:23 AM UTC+4, Peter Taoussanis wrote:
This is very interesting.
, Dmitry Groshev lambdadmi...@gmail.com wrote:
Is there any reference of standard protocols in which one can
participate?
When working with Java code and building bindings to complex Java
classes,
it's sometimes handy to define instances of Seq (for example) for them.
But
it's horribly
Is there any reference of standard protocols in which one can participate?
When working with Java code and building bindings to complex Java classes,
it's sometimes handy to define instances of Seq (for example) for them. But
it's horribly troublesome to look up protocols in source code every
cljsbuild still screams on me when building Domina with the latest
Clojurescript and cljsbuild.
WARNING: Use of undeclared Var domina/.DomContent at line 459
/home/si14/repos/domina/src/cljs/domina.cljs
WARNING: Use of undeclared Var domina/.nodes at line 459
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