qdunkan:
However, there are some questions I've had about it for a long time.
The 'yi' paper mentions both 'yi' and 'lambdabot' as users of
hs-plugins. However, both those projects have long since abandoned
it. I can't find any documentation on why, or even any documentation
at all for Yi
ketil:
I needed GHC on a new machine, and went to download a binary tarball.
First, I go to http://haskell.org/ghc/download_ghc_6_12_3.html,
which kindly suggests to get the Haskell Platform instead.
Then, at http://hackage.haskell.org/platform/linux.html, I'm told that I
first need
Great! It's a Friday. Why not step in.
Just some context, since the current blurb was born from a critique at
CUFP 2007, prior to which the Haskell blurb was:
Haskell is a general purpose, purely functional programming
language. Haskell compilers are freely available for almost any
tomdoris:
Hi,
Are there any plans to extent the current Data.Judy package to include
bindings
to JudySL and JudyHS? There's a standalone binding to JudySL by Andrew Choi
that is usable but it would of course be better to have the functionality in
the Data.Judy package proper.
Thanks
Tom
Here are the notes transcribed from the Future of Haskell BoF held
after the Haskell Symposium last week.
-- Don
= Future of Haskell BoF Notes =
A birds of a feather meeting was held at ICFP, organized by Bryan and
Johan. We had 30 (?) people in a room, for 2 hours, discussing how to
ensure
The Haskell Implementors Workshop was held in Baltimore, today.
Duncan Coutts from Well-Typed and I presented a status report on the
Haskell distribution infrastructure: Hackage , Haskell Platform and
Cabal.
The slides are here:
I have a list:
http://twitter.com/#/list/donsbot/haskellers
pumpkingod:
Also, it is possible to add yourself to your own twitter list :)
On Fri, Oct 1, 2010 at 12:03 PM, Magnus Therning mag...@therning.org wrote:
Now that there are lists/groups on Twitter
Slides and videos from today's Haskell Implementors Workshop, in
Baltimore.
http://haskell.org/haskellwiki/HaskellImplementorsWorkshop/2010#Programme
Enjoy.
-- Don
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Neil's
* slides http://www.galois.com/~dons/talks/hiw-2010/ndm-shake.pdf
* video http://www.vimeo.com/15465133
ckkashyap:
Hi Neil ... how did the talk go?
On Thu, Sep 30, 2010 at 10:23 PM, Neil Mitchell ndmitch...@gmail.com wrote:
What great timing! I will be giving a talk at the
tomahawkins:
A few years ago I attempted to build a Haskell hardware compiler
(Haskell - Verilog) based on the Yhc frontent. At the time I was
trying to overcome several problems [1] with implementing a hardware
description language as a light eDSL, which convinced me a proper
compiler may
in the library is described in:
* Plugging Haskell In. André Pang, Don Stewart, Sean Seefried, and
Manuel M. T. Chakravarty. In Proceedings of the ACM SIGPLAN Workshop
on Haskell, pages 10-21. ACM Press, 2004
* Dynamic Applications From the Ground Up. Don Stewart and Manuel M.
T
No, xmonad uses a different dynamic extension model based on the OS
process. To dynamically upgrade an xmonad process, you,
* modify the source (i.e. the config file)
* hit mod-q, which triggers:
+ linking of the config file into the application library, creating
a new xmonad
michael:
On Thu, Sep 16, 2010 at 10:26 AM, Andrew Coppin
andrewcop...@btinternet.com wrote:
On 16/09/2010 08:52 AM, Michael Snoyman wrote:
future it would be beneficial to the community to have this
information centralized on a website. I think it would be useful to
have some basic
- Forwarded message from Richard rich...@normab.freeserve.co.uk -
To: hask...@haskell.org
Subject: [Haskell] Announcement
My book Pearls of Functional Algorithm Design will
be published by CUP this month. See
http://www.comlab.ox.ac.uk/news/237-full.html
Richard Bird
- End
tonyhannan2:
Is there anywhere we can see the number of download for a particular package,
especially ones you maintain yourself?
Nothing terribly automated, but the status for the last quarter:
http://donsbot.wordpress.com/2010/06/30/popular-haskell-packages-q2-2010-report/
ali.razavi:
Is it possible to install either of these (preferably the latter) somewhere in
my home directory without having root permission? I tried the unknown linux
package with configure --prefix set to a subdir in my home, to no avail. The
problem seems to be due to some library
karel.gardas:
Hello,
as this is really friendly forum, I'd like to ask to perhaps solve my
wonder. From time to time I'm seeing people here recommending Scala as a
kind of replacement for non-existent Haskell on Java/JVM platform. My
wonder is: why the people here do not recommend CAL,
for :)
A quick question - import Process bombs on my GHCI(The Glorious
Glasgow Haskell Compilation System, version 6.12.3) -what do I need to
do for that?
On Sun, Sep 5, 2010 at 11:12 PM, Don Stewart d...@galois.com wrote:
Gaius:
My usual rhetoric is that one-off, throwaway scripts never
creswick:
On Mon, Sep 6, 2010 at 5:29 AM, Ivan Lazar Miljenovic
ivan.miljeno...@gmail.com wrote:
On 6 September 2010 21:57, han e...@xtendo.org wrote:
So the question is: Do you agree that Graphics.Rendering.OpenGL actually
should have been Graphics.OpenGL (or just OpenGL) for wieldiness?
ivansichfreitas:
Hi fellow haskellers,
I'm interested in the performance of parallel and/or distributed
implementations in haskell language. For example, supose I want to
develop an application that distributes a computation between many
multicore computers, what are the advantages I can
waldmann:
http://book.realworldhaskell.org/read/concurrent-and-multicore-programming.html
http://www.haskell.org/haskellwiki/GHC/Data_Parallel_Haskell
Although the last two edits on that page are from 2010 and 2009.
So what *is* the current status of DPH?
Note that DPH is a programming
waldmann:
Don Stewart dons at galois.com writes:
Note that DPH is a programming model, but the implementation currently
targets shared memory multicores (and to some extent GPUs), not
distributed systems.
Yes. I understand that's only part of what the original poster wanted,
but I'd
waldmann:
functional/declarative code automatically parallelizes,
Well, that's not really a good thing to say.
Sure, sure, and I expand on the details in my lectures.
But in advertising (the elevator sales pitch), we simplify.
Cf. well-typed programs don't go wrong.
Good! I
Gaius:
My usual rhetoric is that one-off, throwaway scripts never are, and
not only do they tend to stay around but they take on a life of their
own. Today's 10-line file munger is tomorrow's thousand-line ETL batch
job on which the business depends for some crucial data - yet the
original
donn:
Quoth Dimitry Golubovsky golubov...@gmail.com,
Is there any way to catch/detect failures inside the Get monad? It is
not an instance of MonadError, so catchError does not work.
Ideally, the function would keep decoding as long as it is possible,
and upon the first failure of the
ganesh.sittampalam:
Johannes Waldmann wrote:
Is there a conversion guide for switching from base-3 to base-4?
I noticed that ghc-HEAD (6.13) comes with base-4.3 (and no base-3).
This will break an awful lot of packages (?), in fact the breakage
starts with cabal-install (since it
andrewcoppin:
Arnaud Bailly wrote:
Hello,
I installed (succesfully) HAskell Platform 2010.2 on windows and have
a small but annoying issue: Some links in HTML documentation lead to
broken links. I did not investigate all the links, but I have seen
that all doc under Control.Monad.XXX
crazy.fizruk:
Hi all,
I am very interested in haskell and most of related things and as I know there
are a lot of things to do for haskell world. I have rather small, as I think,
expirience with haskell: I've worked with Language.C, alex, happy, parsec and
some other stuff that I haven't
/
Separately, the patches are attached to this ticket.
The consideration period is 3 weeks (before ICFP).
__
Work carried out over 28/29th August, 2010 in Utrecht, NL, by Johan
Tibell and Don Stewart
gromopetr:
Hi all,
I've been considering using Haskell for my natural language processing
project. Due to its nature, it has much to do with Unicode.
Unfortunately, Haskell escapes UTF8 characters. I've been able to
output these strings via System.IO.UTF8.putStrLn (though I wish it was
marlowsd:
If you look at the original Cabal design document[1], you'll see that
one of the goals of Cabal was to be the glue that lets you convert an
arbitrary Haskell library into a native package for a variety of systems
- including MSIs on Windows. Indeed, I must admit when we were
deteego:
If people just wanted an auto udpate version of cabal that works through
arch's
package management, then there should have just been a pacman wrapper which
when you install/update haskell libraries/packages, it creates a local package
through cabal2arch instead of using AUR.
There's a lot of examples of languages implemented in Haskell to choose
from, too
http://haskell.org/haskellwiki/Applications_and_libraries/Compilers_and_interpreters#Large_languages
michael:
Thank you all for your encouragement. I need to think about the core
functionality, and do some
kevinjardine:
I'm running Haskel Platform 2010.2.0.0 and attempting to compile with
regex-compat under Windows XP.
The link stage fails with a number of lines of the form:
D:\Program Files\Haskell Platform\2010.2.0.0\lib\extralibs\regex-
$ cabal update
Downloading the latest package list from hackage.haskell.org
$ cabal install sifflet
Resolving dependencies...
cabal: cannot configure pango-0.11.1. It requires cairo =0.11.1 0.12
and glib =0.11.1 0.12
For the dependency on cairo =0.11.1 0.12 there are
On Aug 16, 9:27 pm, Andrew Coppin andrewcop...@btinternet.com wrote:
And so today, just for giggles, I tried to get Sifflet to work. Along
the way, I encountered a number of... glitches, if you will.
First of all, I tried to get it to work on Windows. I fired up a new
Windows VM and
wren:
Bryan O'Sullivan wrote:
As a case in point, I took the string search benchmark that Daniel shared
on Friday, and boiled it down to a simple test case: how long does it take
to read a 31MB file?
GNU wc -m:
- en_US.UTF-8: 0.701s
text 0.7.1.0:
- lazy text: 1.959s
- strict
andrewcoppin:
Interesting. I've never even heard of Data.Text. When did that come into
existence?
More importantly: How does the average random Haskeller discover that a
package has become available that might be relevant to their work?
In this case, Data.Text has been announced on this
There are many libraries for many purposes.
How to pick your string library in Haskell
http://blog.ezyang.com/2010/08/strings-in-haskell/
kevinjardine:
I find it disturbing that a modern programming language like Haskell
still apparently forces you to choose between a representation
ivan.miljenovic:
On 12 August 2010 16:45, Magicloud Magiclouds
magicloud.magiclo...@gmail.com wrote:
Hi,
Today I found out that I cannot access hackage.haskell.org. I have
tried vpn/proxy to see if my network has something wrong. No luck.
greg:
Hi all,
Can anyone explain what the overhead of using StablePtrs is?
Specifically I am interested in knowing the time/space complexity of the
various Foreign.StablePtr operations and how many memory indirections
are involved when using deRefStablePtr.
There's a hashtable in the
sacha:
Hi.
On Mon, 9 Aug 2010 09:44:00 +0200
JG == Jean-Marie Gaillourdet j...@gaillourdet.net wrote:
JG
JG I am no expert in web server tuning, but I will share my thoughts
JG about your approach and expectations nevertheless.
I would better think about ghc than about web server. I
Only problem is rewriting the GHC runtime in Java... :-)
-- Don
scooter.phd:
Whatever happened to the JVM backend for GHC? That might actually be a
relatively straightforward solution to the whole interface to Java problem.
On Sun, Apr 18, 2010 at 11:42 PM, Don Stewart d...@galois.com
aditya.siram:
Hi folks,
I just installed the latest Haskell Platform on a fresh Ubuntu Lucid machine
and I had to install the following packages to satisfy Open GL:
libgmp3-dev,libgl1-mesa-dev, libglu1-mesa-dev, freeglut3-dev
Just thought you might want to document that on the Haskell
ivan.miljenovic:
On 6 August 2010 14:12, Tony Morris tonymor...@gmail.com wrote:
Hello, does anyone happen to have the lambdacats page cached? The domain
(arcanux.org) and server have disappeared and the wayback machine doesn't
have the images.
Plenty of stuff shows up on google:
job.vranish:
+ 1
This is probably the biggest obstacle to using Haskell where I work. (Aviation
industry, software for flight management systems for airplanes)
We often need to perform some computations with hard deadlines, say every
20ms,
with very little jitter.
Major GC's spoil
pieter:
Hi,
When I try to install haskell platform 64 bit on a x86_64 debian etch I get
the
following error after :
make install:
/usr/bin/install -c -m 755 -d /usr/local/lib/ghc-6.12.3/package.conf.d
/usr/local/lib/ghc-6.12.3/ghc-pkg --force --global-conf /usr/local/lib/
qiqi789:
As more I learn haskell, I am more interested in this function
programming language. I am intended to more focus on haskell than other
languages like python, Java, or C++. But I am still wonder whether haskell
can do everyting
as other languages do, such as python, perl, Java and
aditya.siram:
Why are the Takusen module links on Hackage dead?
Hmm. The links look fine:
http://hackage.haskell.org/package/Takusen-0.8.6
this opportunity to request a Takusen tutorial and to thank you for this
___
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.
-deech
[1] http://hackage.haskell.org/packages/archive/Takusen/0.8.6/doc/html/
Database-ODBC-Enumerator.html
On Sun, Aug 1, 2010 at 1:46 PM, Don Stewart d...@galois.com wrote:
aditya.siram:
Why are the Takusen module links on Hackage dead?
Hmm. The links look fine
wren:
Hey all,
Is there a library function (f :: [Int] - ByteString) such that it's
prefix-preserving, and platform independent? GHC-only is fine for now.
There are a bunch of functions of that type, but I need those guarantees
and I'm hoping someone else has already done it.
should
andrewcoppin:
Don Stewart wrote:
Download the Haskell Platform 2010.2.0.0:
http://hackage.haskell.org.nyud.net/platform/
(Caching server).
Anybody have any theroes why Trend Micro Antivirus is reporting this as
a confirmed fraud/attack site?
We're using the Coral Cache caching
We're pleased to announce the fifth release of the Haskell Platform: a
single, standard Haskell distribution for everyone.
Download the Haskell Platform 2010.2.0.0:
http://hackage.haskell.org.nyud.net/platform/
(Caching server).
The specification, along with installers (including Windows,
dave:
Actually, it just got trivial:
$ diffcabal old-platform.cabal haskell-platform.cabal
Cabal 1.8.0.2 - 1.8.0.6
QuickCheck 2.1.0.3 - 2.1.1.1
[etc.]
Okay, so where do I go to find out the difference between, say,
QuickCheck 2.1.0.3 and 2.1.1.1?
--
Currently, the
allbery:
like to repeat one request: Please, please, please make it easier to
- Download older versions of HP.
- Find out which HP release contains what.
- Figure out what the difference between release X and release Y is.
+1
I'd consider this mandatory. It's amazing how many projects
markl:
I like the content. The layout has some flaws when rendered on my
environment (Safari 4, but with perhaps narrower than most peoples
windows):
* The background image tiled looks pretty bad - since I see repeats
and it doesn't really tile.
Yes, noted.
* The three columns at the
andrewcoppin:
Don Stewart wrote:
allbery:
like to repeat one request: Please, please, please make it easier to
- Download older versions of HP.
- Find out which HP release contains what.
- Figure out what the difference between release X and release Y is.
+1
I'd consider
Can distro maintainers confirm these are the best links for
each distro package?
Debian
http://packages.debian.org/squeeze/haskell-platform
(or should it be sid?)
Fedora:
https://admin.fedoraproject.org/pkgdb/acls/name/haskell-platform
Gentoo:
wren:
Niemeijer, R.A. wrote:
Here's my take on the new design:
Screenshot: http://imgur.com/9LHvk.jpg
Live version:
http://dl.dropbox.com/u/623671/haskell_platform_redesign/index.htm
Is it just me, or does aligning [OSX,Win,Linux] `zip` [Comprehensive,
Robust, CuttingEdge] send the
Hey all,
As you might know, the next major release of the Haskell Platform is
coming up next week. We've had the current download site design for a
while now:
http://haskell.org/platform/
However, I'm thinking it would be nice to have themed release designs.
Examples:
Generally, in Erlang or Haskell, the semantics we use is to keep
all the old code in memory, for the case of closures and thunks that
point back into that code.
You can imagine a fine-grained semantics where as each top level
function is no longer referenced, the *code* for that is swapped. I
chrisdone:
Hi Don,
What's the ETA on getting the site wiki upgraded and to what version
will it be? If we're looking at another couple of weeks I'll come up
with a new wiki template this weekend to replace the current one.
For haskell.org? Thomas Schilling and Ian Lynagh are working on
chrisdone:
On 16 July 2010 20:37, Don Stewart d...@galois.com wrote:
chrisdone:
Regarding the Haskell Platform, maybe a summer theme is in order?
Sunrise, here's a whole platform upgrade. Get it while it's hot, etc.
That's a great idea! :-)
Maybe you could work on a theme like
chrisdone:
On 16 July 2010 20:37, Don Stewart d...@galois.com wrote:
chrisdone:
Regarding the Haskell Platform, maybe a summer theme is in order?
Sunrise, here's a whole platform upgrade. Get it while it's hot, etc.
That's a great idea! :-)
Maybe you could work on a theme like
lazycat.manatee:
Hi all,
I'm research to build a hot-swap Haskell program to developing itself in
Runtime, like Emacs.
Essentially, Yi/Xmonad/dyre solution is replace currently executing
technology:
re-compile new code with new binary entry
when re-compile success
$
Madrid, Spain
Sven-Bodo ScholzUniversity of Hertfordshire, UK
Tom Schrijvers Catholic University of Leuven, Belgium
Don Stewart Galois, USA
Wouter SwierstraVector Fabrics, Netherlands
Don SymeMicrosoft, UK
Peter Thiemann University
gwern0:
Ashley has made me admin; I've spent the last 1.5 hours deleting all
the vandalism and indef blocking the accounts. I have Recent Changes
in my RSS reader, so hopefully in the future there will be no greater
than 24 hours delay before vandalism is dealt with. A MW upgrade will
also
chrisdone:
http://haskell.org/
It says TO BUY Cilamox ONLINE, etc.
Whoever has power please fix this and upgrade the bloody wiki. This is
ridiculous. Point the domain at tryhaskell.org or something. I'll put
a holder page up. Anything.
It looks like after the Yale machine was repaved,
markl:
On Jul 11, 2010, at 3:17 PM, Henk-Jan van Tuyl wrote:
There are hundreds of HaskellWiki users created, their names all start with
Buy and their user pages contain spam. I suppose the antispam measures
were reverted when a backup of the site was loaded. (B.T.W. the site still
ali.razavi:
Hi,
Hackage is a sizable repository of Haskell code; makes me wonder if there is a
way to use it more effectively for pedagogical purposes. For example, I really
would like to study State monad, monad transformers, applicative, arrows etc.
in action--i.e., in the context of a
joerg.rudnick:
Hi Chris,
these are good questions -- actually, you might have mentioned Takusen, too.
Clearly, HDBC is the largest of these projects, and there are lots of
things well done there.
Takusen has an interesting approach, and I would like to see a
discussion here about the
warren.henning:
On Mon, Jul 5, 2010 at 5:46 PM, Don Stewart d...@galois.com wrote:
Feedback and patches welcome!
Interesting.
Could this be combined with the ACOVEA compiler flag thing you did a
while back to produce a tool that would automatically improve
performance of programs
Inspired by a comment by Simon Marlow on Stack Overflow, about the time
and space tradeoffs we make with garbage collection, particularly with a
generational GCs, I wrote a small program, ghc-gc-tune, to traverse the
garbage collector variable space, to see the relationship between
settings and
deliverable:
I dump results of a computation as a Data.Trie of [(Int,Float)]. It
contains about 5 million entries, with the lists of 35 or less pairs
each. It takes 8 minutes to load with Data.Binary and lookup a single
key. What can take so long? If I change from compressed to
andrewcoppin:
Edward Kmett wrote:
Knowledge of Haskell means very different things to different
people. I'd be somewhat leery of blindly hiring someone based on their
ability to answer a couple of pop Haskell quiz questions.
A better test might be if they really understood Applicative
ivan.miljenovic:
Hmm, interesting. Applicative and Traversable are two classes I've never
used and don't really understand the purpose of. I have no idea what
hsc2hs is. I keep hearing finger trees mentioned, but only in connection
to papers that I can't access. So I guess that means
not be the most elegant, but it only took a few minutes and it does the
job. You'll find it attached :)
Cheers,
- Tim
On Wed, Jun 30, 2010 at 5:08 PM, Don Stewart d...@galois.com wrote:
Downloads and popular packages on Hackage for Q1 and Q2 this year.
http://donsbot.wordpress.com
That's not really true. We train people at Galois in Haskell, on the job.
Often they have prior FP experience, but not always.
aditya.siram:
And learning (fun) should be an important aspect of the position.
Whatever FP you're coming from, I don't think you can pick up Haskell
on the job.
Downloads and popular packages on Hackage for Q1 and Q2 this year.
http://donsbot.wordpress.com/2010/06/30/popular-haskell-packages-q2-2010-report/
-- Don
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claus.reinke:
To binary package users/authors: is there a typed version of binary (that
is, one that records and checks a representation of the serialized type
before actual (de-)serialization)? It
would be nice to have such a type check, even though it
wouldn't protect against missing
Some people might be quite excited by Milan's work on significant
performance improvements to the containers package...
- Forwarded message from Milan Straka f...@ucw.cz -
Date: Thu, 24 Jun 2010 07:45:50 +0200
From: Milan Straka f...@ucw.cz
To: Don Stewart d...@galois.com
Cc: Claus
deliverable:
Simon -- so how can I get me a new ghc now? From git, I suppose? (It
used to live in darcs...)
It still lives in darcs.
Nightly builds are here: http://www.haskell.org/ghc/dist/stable/dist/
You'll want to check with Simon that the patch got pushed, though,
first.
-- Don
vigalchin:
Hello,
I have been reading work done at Rice University: http://
habanero.rice.edu/cnc. Some work has been done by http://www.cs.rice.edu/
~dmp4866/ on CnC for .Net. One component that David wrote a CnC translator
that
translates CnC textual form to the underlying
john:
On Tue, Jun 22, 2010 at 06:24:22PM +0100, Andrew Coppin wrote:
John Meacham wrote:
In particular, a Huffman coding:
http://en.wikipedia.org/wiki/Huffman_coding
is ideal for this (assuming you just are taking advantage of frequency
analysis). A dynamic Huffman Tree will even adapt
Rami.Mukhtar:
Hi,
Can anyone tell me a way to identify the generated assembly (as found in the
intermediate files produced by GHC) corresponding to a particular fragment of
Core code.
Hey Rami,
I use the ghc-core tool:
http://hackage.haskell.org/package/ghc-core
Which displays both
deliverable:
At this very moment I'm struggling with fitting a huge graph of
Twitter communications into a Haskell program. Apparently it gets
into a loop freeing memory. As I suspected, JVM garbage collector got
more testing than Haskell at this scale; since not many people load it
up as
Martin.Drautzburg:
Hello all
The standard map function applies a single function to a list of arguments.
But what if I want to apply a list of functions to a single argument. I can
of course write such a function, but I wonder if there is a standard way of
doing this,
map ($ 2)
deliverable:
If you just want to optimize it and not compare exactly equal idiomatic
code,
you should stop using functional data structures and use a structure that
fits
your problem (the ST monad has been designed for that in Haskell), because
compilers do not detect single-threaded
deliverable:
Wren -- thanks for the clarification! Someone said that Foldable on
Trie may not be very efficient -- is that true?
I use ByteString as a node type for the graph; these are Twitter user
names. Surely it's useful to replace them with Int, which I'll try,
but Clojure works with
deliverable:
I've supplied a profile report there. Since I load the graphs in
memory and then walk them a lot, the time seems expected. It
allocates a lot, though. The main graph type is
type Graph = M.Map User AdjList
type AdjList = M.Map Day Reps
type User = B.ByteString
type Day =
deliverable:
I'm computing a communication graph from Twitter data and then scan it
daily to allocate social capital to nodes behaving in a good karmic
manner. The graph is culled from 100 million tweets and has about 3
million nodes. First I wrote the simulation of the 35 days of data in
igouy2:
parallel, regex-posix, regex-pcre are now installed and the current
compile errors are caused by the programs not the absence of required
libraries -
http://shootout.alioth.debian.org/u64q/program.php?test=binarytreeslang=ghcid=2#log
wasserman.louis:
There are 4 sets of rankings so -
http://shootout.alioth.debian.org/u64/program.php?test=threadringlang=ghc;
id=3
Yes, but Haskell used to be doing much better specifically on the u64q, which
was why I was surprised.
Oh, indeed,
igouy2:
In particular, use thread pinning to improve
locality.
-qw -qm ?
How's that going to work out when applied to the other
Haskell programs?
I'm sure it does bad things to them.
Yep, earlier in the week I measured the programs using +RTS -N4 -qw
-qm which
igouy2:
Simon Marlow described how best to parallelize this problem
extensively
in:
http://www.haskell.org/~simonmar/bib/multicore-ghc-09_abstract.html
So I'd suggest doing what he says.
In particular, use thread pinning to improve locality.
-qw -qm ?
How's that
arnaud.oqube:
Hello,
I have a strange issue which sprang today out of nowhere. When I load
a certain file using bytestring package in Ghci using emacs, I got the
following error:
Couldn't match expected type `Data.ByteString.Internal.ByteString'
against inferred type
igouy2:
Now how do we get those regex-dna and binary-trees programs to compile?
http://shootout.alioth.debian.org/u32/measurements.php?lang=ghc
binary-trees:
Could not find module `Control.Parallel.Strategies':
-- cabal install parallel
regex-dna:
cannot satisfy
jwlato:
From: Don Stewart d...@galois.com
ivan.miljenovic:
Thomas Bereknyei are currently re-writing fgl (just about completely
from scratch) and we plan to make an initial release to get feedback
on the API in the next few weeks.
However, I'm sending this email out now to warn
There have been a few cases of major API / rewrites to famous old
packages causing problems, including:
* QuickCheck 1 vs 2
* parsec 2 vs 3
* OpenGL
a similar opportunity is present with 'fgl', where the new maintainers
are seeking to improve the code.
Below I try to summarise
jwlato:
Great points: I've added them to this wiki page of for and against
points:
http://haskell.org/haskellwiki/Libraries/WhenToRewriteOrRename
Please add points as you see fit, and maybe we can come up with a
mitigation/change plan.
Thanks very much; that's a useful page.
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