Re: [Haskell-cafe] Language Shootout
http://lmgtfy.com/?q=llvm+site%3Ahttp%3A%2F%2Fshootout.alioth.debian.org%2F Louis Wasserman wasserman.lo...@gmail.com wrote in message news:CA+tXMXOmVYvGfAiFsf-uVv7rRv7e=vUv=mxtr-dtnnvmr12...@mail.gmail.com... Out of curiosity, do we know why the Language Shootout has upgraded to GHC 7.4.1, but still isn't using -fllvm for e.g. the spectral-norm benchmark? (It results in a nonnegligible speedup on my machine.) Louis Wasserman wasserman.lo...@gmail.com http://profiles.google.com/wasserman.louis -- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] [haskell-cafe] Some reflections on Haskell
2012/2/15 Aristid Breitkreuz arist...@googlemail.com: In the source file, the Haddock documentation is there, no idea why it doesn't show up. Thanks, this could be a bug in the new Haddock version. We'll look into it. David ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Behavior of -threaded in GHC 7.4.1?
Ok, so I've found that using the -V0 RTS flag to turn off the RTS clock (and associated signals) makes the code run fine with -threaded. I'm still digging through the implications of that, though. Has some behavior here changed in 7.4.1? Mike Craig On Tue, Feb 14, 2012 at 3:54 PM, Michael Craig mks...@gmail.com wrote: Hi all, I'm debugging an issue with multithreading and FFI calls in 7.4.1. The code in question is the zeromq3-haskell library, which provides an FFI binding to ZeroMQ. A little background: ZeroMQ gives the programmer contexts and sockets. Contexts are thread-safe and generally used one-per-process, but sockets and not thread-safe so they're generally used one-per-thread. Have a look at the code in this gist: https://gist.github.com/1829190It's just a server that prints requests and replies with Hello, and a client that sends the requests [1, 2, ..., 10] and prints the responses. Despite the fact that ZMQ sockets are not thread-safe, it was possible to compile and run this code with -threaded under 7.0.4. Using MVars or some other locking mechanism, it was even possible to use the same socket from multiple parallel threads. (As long as the socket was not actually used in parallel by multiple threads, all was well.) In 7.4.1, the code will only run if compiled without -threaded. With -threaded, it croaks with an operation on non-socket error, which generally refers to a socket that's either been closed or I've dug through the code in zeromq3-haskell and haven't found anything suspicious looking. Before I go digging into libzmq itself, can somebody assure me that nothing has changed in 7.4.1 with regard to -threaded or the FFI that might cause this breakage? Cheers, Mike Craig ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] podcast?
Does anybody know of any good haskell/fp podcasts out there? i dont know if my googling skillz are just failing me, but i can't seem to find anything. thanks all! hex -- * my blog is cooler than yours: http://serialhex.github.com * The wise man said: Never argue with an idiot. They bring you down to their level and beat you with experience. * As a programmer, it is your job to put yourself out of business. What you do today can be automated tomorrow. ~Doug McIlroy No snowflake in an avalanche ever feels responsible. --- CFO: “What happens if we train people and they leave?” CTO: “What if we don’t and they stay?” ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] podcast?
On Wed, Feb 15, 2012 at 15:05, serialhex serial...@gmail.com wrote: Does anybody know of any good haskell/fp podcasts out there? i dont know if my googling skillz are just failing me, but i can't seem to find anything. thanks all! Software Engineering Radio (http://www.se-radio.net/) has had a few episodes containing interviews with people in the FP community. That's pretty much all I've ever been able to find. /M -- Magnus Therning OpenPGP: 0xAB4DFBA4 email: mag...@therning.org jabber: mag...@therning.org twitter: magthe http://therning.org/magnus ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Undocumented cost-centres (.\) using auto-all, and SCC pragma not being honored
1 When profiling my code with -auto-all, my .prof file names some sub-expressions with a backslash. Cf. below. What are these? e_step e_step.ewords e_step.\ e_step.\.\ e_step.update_counts e_step.fwords My e_step function binds seven expressions inside a let, then uses them in two ugly nested folds. (Yes, very hackish) As you can see, three such expressions are named explicitly (ewords, fwords, and update_counts). But where are the rest? Further, perhaps the backslashes have something to do with the lambda expressions I am using in the two nested folds? 2. A related question: I tried using the SCC pragma instead of auto-all. I added it to all seven expressions inside the let, and to the nested folds. However, only two showed up in the .prof file! How come? Thanks ninestraycats ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Optimizations and parallel execution in the IO for a small spellchecker
Hi everyone, http://hpaste.org/63732 that's a very simple spellchecker application: it consumes standard Linux dictionary, reads a file, and prints out words from that file that are not on the dictionary. I have taken it from a little cross-language benchmark and used to benchmark existing hash table implementations available on Hackage (with one used in code being the best according to timings). The question is: can I go further and effectively execute lookup and (maybe) output (line 20 or line 26 in the snippet) in parallel? I'm not good at all with Haskell parallel packages; I've tried monad-parallel (naive implementation eats away all the memory available) and parallel (haven't tried Par monad yet), but the last dosn't seem to fit well with the IO operations. If anyone can give me any suggestions on how can I implement parallel execution, or any thoughts on further sequential optimizations, it would be deeply appreciated. -- Regards, Paul Sujkov ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Hackage 2 maintainership
On 14 February 2012 10:43, Kirill Zaborsky qri...@gmail.com wrote: I apologize, But does hackage.haskell.org being down for some hours already has something with the process of bringing up Hackage 2? No, completely independent. The server was down for a few hours (and I think restored in the morning by the sysadmin at Galois). It was while I was mirroring to the new test server, but I don't think that was the cause of the outage. Some people were joking that the old server didn't want to be retired and so was shutting down to prevent the mirroring :-) Duncan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Concurrency strategy for 2 threads and rare events
Thank you all, I've used a simple IORef and that did the trick. JP 2012/2/8 Edward Amsden eca7...@cs.rit.edu: If you only need one structure for communication (e.g. neither thread needs to lock multiple things) you might consider using an IORef, and writing/polling it with atomicModifyIORef. It's cheaper than an MVar for the case where you don't need to lock multiple threads. On Wed, Feb 8, 2012 at 2:45 PM, JP Moresmau jpmores...@gmail.com wrote: No, I meant they seem to be mainly for the use case where the reading thread blocks for more input, and maybe there's a simpler/more efficient way to quickly check if an event has occurred, that's all. If there isn't then a MVar it will be. JP On Wed, Feb 8, 2012 at 7:35 PM, Yves Parès yves.pa...@gmail.com wrote: Why do you think it's a lot? MVar are a teeny tiny and convenient primitive of communication, and I don't see why they wouldn't suit your need. Sure a throwTo would do the trick... But they're is do the trick and do the job, you see? Using STM and TVars *would* be kind of overkill. 2012/2/8 JP Moresmau jpmores...@gmail.com Hello, I'm wondering what's the best strategy to use in the following scenario: - 2 threads - One perform some work that will take time, possibly go on forever - Another waits for user input (like commands from the keyboard) that affects thread 1 (causing it to stop, in the simplest case) I've read a bit on MVar and channels, but they seem to be a lot for cases where the reading thread block for input. In my case, I expect to have something that thread 2 updates when an event occur, and thread 1 checks it regularly. So thread 1 should not block, but should check is there something and there is, act on it, otherwise continue doing what it was currently doing. I suppose I could just tryTakeMVar on a MVar, but is there something more adapted to my needs? Thanks! -- JP Moresmau http://jpmoresmau.blogspot.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- JP Moresmau http://jpmoresmau.blogspot.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Edward Amsden Student Computer Science Rochester Institute of Technology www.edwardamsden.com -- JP Moresmau http://jpmoresmau.blogspot.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] [Haskell-Cafe] Optimizations and parallel execution in the IO for a small spellchecker
Sorry, I've forgotten to add a [Haskell-Cafe] tag for the message. On 15 February 2012 19:33, Paul Sujkov psuj...@gmail.com wrote: Hi everyone, http://hpaste.org/63732 that's a very simple spellchecker application: it consumes standard Linux dictionary, reads a file, and prints out words from that file that are not on the dictionary. I have taken it from a little cross-language benchmark and used to benchmark existing hash table implementations available on Hackage (with one used in code being the best according to timings). The question is: can I go further and effectively execute lookup and (maybe) output (line 20 or line 26 in the snippet) in parallel? I'm not good at all with Haskell parallel packages; I've tried monad-parallel (naive implementation eats away all the memory available) and parallel (haven't tried Par monad yet), but the last dosn't seem to fit well with the IO operations. If anyone can give me any suggestions on how can I implement parallel execution, or any thoughts on further sequential optimizations, it would be deeply appreciated. -- Regards, Paul Sujkov -- Regards, Paul Sujkov ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] GHC -WAll, -fwarn-unused-do-bind and Cabal
On 12-02-14 03:01 PM, JP Moresmau wrote:
I'm confused: I'm using GHC 7.0.2 and Cabal 1.10.1.0 with
cabal-install 0.10.2. I use -Wall in my Cabal file. If I build a
Haskell file with unused do binds, via the GHC API I get no warning,
which is normal, since the doc states: The warnings that are not
enabled by -Wall are ..., -fwarn-unused-do-bind But if I build my
project through cabal it gives me the warning! Why is compiling with
Cabal giving that extra warning that GHC on its own with the same
flags doesn't give? Using --verbose on cabal build does not give any
clue, no suspicious extra flag is passed on.
The plot thickens as I perform some experiments.
Experiment #1:
main :: IO ()
main = do { x - getLine; putStrLn thank you }
ghc -Wall =
Warning: Defined but not used: `x'
ghc -fwarn-unused-do-bind =
(no warning)
Apparently, warn-unused-do-bind does not mean that x is unused.
Experiment #2:
main :: IO ()
main = do { getLine; putStrLn thank you }
ghc -fwarn-unused-do-bind =
Warning: A do-notation statement discarded a result of type String.
Suppress this warning by saying _ - getLine,
or by using the flag -fno-warn-unused-do-bind
ghc -Wall =
Warning: A do-notation statement discarded a result of type String.
Suppress this warning by saying _ - getLine,
or by using the flag -fno-warn-unused-do-bind
ghc -Wall -fno-warn-unused-do-bind =
(no warning)
Apparently, -Wall turns on -fwarn-unused-do-bind, despite the user guide.
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Re: [Haskell-cafe] GHC -WAll, -fwarn-unused-do-bind and Cabal
Yes, I would have suspected that the doc was wrong, and indeed the
latest version on GHC 7.4 does not mention that flag as being
excluded, but the fact is that through the GHC API, I don't get that
warning! I can get other warnings so I would say that the way I use
the API is correct.In the GHC 7.0 API are there several ways to get
warnings, or are some warnings only raised at the final generation
stage (which I don't do with the API)? That would be the most sensible
explanation: that warning is only raised during code generation but
not during loading and typechecking of the module. Can somebody privy
with GHC internals confirm? It's just that I've noticed the problem in
my EclipseFP/buildwrapper setup and I want to make sure the issue can
be explained if users run into it.
Thanks anyway for looking into it!
JP
On Wed, Feb 15, 2012 at 8:33 PM, Albert Y. C. Lai tre...@vex.net wrote:
On 12-02-14 03:01 PM, JP Moresmau wrote:
I'm confused: I'm using GHC 7.0.2 and Cabal 1.10.1.0 with
cabal-install 0.10.2. I use -Wall in my Cabal file. If I build a
Haskell file with unused do binds, via the GHC API I get no warning,
which is normal, since the doc states: The warnings that are not
enabled by -Wall are ..., -fwarn-unused-do-bind But if I build my
project through cabal it gives me the warning! Why is compiling with
Cabal giving that extra warning that GHC on its own with the same
flags doesn't give? Using --verbose on cabal build does not give any
clue, no suspicious extra flag is passed on.
The plot thickens as I perform some experiments.
Experiment #1:
main :: IO ()
main = do { x - getLine; putStrLn thank you }
ghc -Wall =
Warning: Defined but not used: `x'
ghc -fwarn-unused-do-bind =
(no warning)
Apparently, warn-unused-do-bind does not mean that x is unused.
Experiment #2:
main :: IO ()
main = do { getLine; putStrLn thank you }
ghc -fwarn-unused-do-bind =
Warning: A do-notation statement discarded a result of type String.
Suppress this warning by saying _ - getLine,
or by using the flag -fno-warn-unused-do-bind
ghc -Wall =
Warning: A do-notation statement discarded a result of type String.
Suppress this warning by saying _ - getLine,
or by using the flag -fno-warn-unused-do-bind
ghc -Wall -fno-warn-unused-do-bind =
(no warning)
Apparently, -Wall turns on -fwarn-unused-do-bind, despite the user guide.
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--
JP Moresmau
http://jpmoresmau.blogspot.com/
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Re: [Haskell-cafe] Haskell-Cafe Tag (was: Optimizations and parallel execution in the IO for a small spellchecker)
I was not aware that it was something a poster was supposed to do, but now I notice that while the messages I get from the list have [Haskell-Cafe] on their subject, the ones I post don't. The Haskell-Cafe info page (http://www.haskell.org/mailman/listinfo/haskell-cafe) does not mention that you should have that tag in the subject. I'm probably a uncouth Frenchman knowing nothing about netiquette, but surely the list software could add such a tag if it was required? JP On Wed, Feb 15, 2012 at 8:14 PM, Paul Sujkov psuj...@gmail.com wrote: Sorry, I've forgotten to add a [Haskell-Cafe] tag for the message. On 15 February 2012 19:33, Paul Sujkov psuj...@gmail.com wrote: Hi everyone, http://hpaste.org/63732 that's a very simple spellchecker application: it consumes standard Linux dictionary, reads a file, and prints out words from that file that are not on the dictionary. I have taken it from a little cross-language benchmark and used to benchmark existing hash table implementations available on Hackage (with one used in code being the best according to timings). The question is: can I go further and effectively execute lookup and (maybe) output (line 20 or line 26 in the snippet) in parallel? I'm not good at all with Haskell parallel packages; I've tried monad-parallel (naive implementation eats away all the memory available) and parallel (haven't tried Par monad yet), but the last dosn't seem to fit well with the IO operations. If anyone can give me any suggestions on how can I implement parallel execution, or any thoughts on further sequential optimizations, it would be deeply appreciated. -- Regards, Paul Sujkov -- Regards, Paul Sujkov ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- JP Moresmau http://jpmoresmau.blogspot.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Haskell-Cafe Tag (was: Optimizations and parallel execution in the IO for a small spellchecker)
On Wed, Feb 15, 2012 at 1:49 PM, JP Moresmau jpmores...@gmail.com wrote: I was not aware that it was something a poster was supposed to do, but now I notice that while the messages I get from the list have [Haskell-Cafe] on their subject, the ones I post don't. The Haskell-Cafe info page (http://www.haskell.org/mailman/listinfo/haskell-cafe) does not mention that you should have that tag in the subject. I'm probably a uncouth Frenchman knowing nothing about netiquette, but surely the list software could add such a tag if it was required? The tag appears to be added automatically by the mailing-list software that haskell-cafe runs on. I see it on threads that you have started, so there is no problem with your emails. If you add it manually, it looks like the software won't double-add it. Antoine ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Haskell-Cafe Tag (was: Optimizations and parallel execution in the IO for a small spellchecker)
On Wed, Feb 15, 2012 at 14:49, JP Moresmau jpmores...@gmail.com wrote: I was not aware that it was something a poster was supposed to do, but now I notice that while the messages I get from the list have [Haskell-Cafe] on their subject, the ones I post don't. The list software adds it. You don't see it because the copy from the list has the same message id as the copy gmail saves when you send it, so gmail tosses the list copy from your mailstore as a duplicate. Don't worry about it. -- brandon s allbery allber...@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Haskell-Cafe Tag (was: Optimizations and parallel execution in the IO for a small spellchecker)
OK, thanks all, I can stop worrying being an uncouth Frenchman, then... JP On Wed, Feb 15, 2012 at 9:01 PM, Brandon Allbery allber...@gmail.com wrote: On Wed, Feb 15, 2012 at 14:49, JP Moresmau jpmores...@gmail.com wrote: I was not aware that it was something a poster was supposed to do, but now I notice that while the messages I get from the list have [Haskell-Cafe] on their subject, the ones I post don't. The list software adds it. You don't see it because the copy from the list has the same message id as the copy gmail saves when you send it, so gmail tosses the list copy from your mailstore as a duplicate. Don't worry about it. -- brandon s allbery allber...@gmail.com wandering unix systems administrator (available) (412) 475-9364 vm/sms -- JP Moresmau http://jpmoresmau.blogspot.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Undocumented cost-centres (.\) using auto-all, and SCC pragma not being honored
On 15 February 2012 16:17, Dan Maftei ninestrayc...@gmail.com wrote: 1 When profiling my code with -auto-all, my .prof file names some sub-expressions with a backslash. Cf. below. What are these? e_step e_step.ewords e_step.\ e_step.\.\ e_step.update_counts e_step.fwords My e_step function binds seven expressions inside a let, then uses them in two ugly nested folds. (Yes, very hackish) As you can see, three such expressions are named explicitly (ewords, fwords, and update_counts). But where are the rest? Further, perhaps the backslashes have something to do with the lambda expressions I am using in the two nested folds? Yup, those are anonymous functions. 2. A related question: I tried using the SCC pragma instead of auto-all. I added it to all seven expressions inside the let, and to the nested folds. However, only two showed up in the .prof file! How come? It would be helpful if you pasted the code. I think SCC pragmas around lambdas get ignored and you should put them inside. (It may be the other way around, though.) Thanks ninestraycats ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Push the envelope. Watch it bend. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Test suite sections of cabal
Hello, I recently started using test suite sections of cabal but it soon appeared very inconvenient to me. 1) test data files If I want to include test data files into package, I have to enumerate all test files since the usage of '*' is restricted. I just want to specify the top directory of test data files. Why does this restriction exist? 2) build-dependency I need to repeat all build-dependency of a library section to a test suite section. Specifying the library itself to build-dependency of a test suite section does not work. This violates the DRY philosophy. Any ideas to avoid this? Thanks. --Kazu ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] How do I get official feedback (ratings) on my GSoC proposal?
I'm interested in mentoring any projects related to concurrent data structure implementation. Is it too late to propose new projects? http://parfunk.blogspot.com/2012/02/potential-gsoc-haskell-lock-free-data.html -Ryan On Mon, Feb 13, 2012 at 7:19 PM, Johan Tibell johan.tib...@gmail.comwrote: Yes. I rated some myself and left a motivation for my rating and waited for someone to disagree. :) In general I was just trying to help students out by pushing down proposals that (in my experience) where too hard to complete in a summer or that were too narrow to benefit a larger portion of the community. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Haskell Weekly News: Issue 215
Welcome to issue 215 of the HWN, a newsletter covering developments in the Haskell community. This release covers the week of February 5 to 11, 2012. You can find the HTML version of this issue at: http://contemplatecode.blogspot.com/2012/02/haskell-weekly-news-issue-215.html Quotes of the Week * nand': haskell has a few advantages in the industry that few other languages can offer. these will become more obvious as time goes on and programming is forced into a functional direction in general. * seo: What i do not realize is actually how you are now not really much more well-liked than you might be right now. You are so intelligent. You realize thus significantly in terms of this subject, produced me in my view consider it from so many numerous angles. Its like men and women are not interested unless it‚s one thing to do with Woman gaga! Your personal stuffs excellent. Always care for it up! * monochrom: Schrodinger's Klein glass bottle: before you look, the cat is inside or outside; after you look, it is inside and outside :) * cmccann: Ruby is a fine language if you're secretly a lisp programmer but want to hide behing perl and smalltalk so nobody catches you * mlh: nice quote -- quick, someone register it for posterity * something: somebody never said, naturally. * irene-knapp: I was going to take a famous quote and put it in lambdabot as my own but I couldn't decide on one * shachaf: getLine :: IO String contains a String in the same way that /bin/ls contains a list of files * edwardk: [unsafePerformIO] sounds like a good idea, its tempting, it makes life easy, for the first 2 lines of code. then you go to write the third and everything goes to shit * cmccann: Idiom brackets are where you consume a mixture of alcohol and Conor McBride papers until your vision gets blurry enough that you can't actually see the Applicative operators anymore. * Philippa: incidentally, if you think about this you're probably starting to image control flow that looks like it's a glyph for summoning cthulhu - and then realising that it's 3d and consists of 'towers'. Make sense? * c_wraith: also, actual reals is a funny thing to call a set that consists mostly of things that cannot be described. * NihilistDandy: I feel like a hipster whenever I talk programming with people at my school. I always have to preface discussions with you've probably never heard of it :/ * ion: Three lefts make two wrongs * elliott: Explicit recursion should generally be avoided. Also, general recursion should be explicitly avoided! * CodeWeaverX: I expect that Weird Untraceable Suitcases Full Of Bad could result from the program assuming such an operation is pure when it clearly isn't. * elliott: cmccann: the instances list haddock generates is now a thing of majesty edwardk: elliott: welcome to my world * mzero: functional programming has a property that is often lacking in other languages... at dinner last night we were discussing it, and I dubbed it: The Princess Bride property --- which is, that a piece of code means what you think it means * sclv: You have a problem and think I'll use a hash function. Now you have intermittantly colliding problems. * monochrom: data Ph a = Ph -- the phantom monad ksion: Is that a new Star Wars prequel? ;) * user1151874: i already declare hp as int with value 3 now my problem is when i put hp--, it shows error [...] but if i put --hp, the result print is 3 not 2. * edwardk: thats my secret. really i don't write anything. i just let others do the work and upload it to hackage behind their backs Top Reddit Stories * Haskell as most mainstream non-mainstream language? The RedMonk Programming Language Rankings: February 2012 Domain: redmonk.com, Score: 45, Comments: 25 On Reddit: [1] http://goo.gl/xWHB8 Original: [2] http://goo.gl/REBXN * The future is parallel, and the future of parallel is declarative (Simon Peyton Jones) [RE: Escape From the Ivory Tower] Domain: yow.eventer.com, Score: 41, Comments: 5 On Reddit: [3] http://goo.gl/PJSlh Original: [4] http://goo.gl/zUKT5 * How Prelude avoids overlapping instances in Show Domain: brandon.si, Score: 32, Comments: 18 On Reddit: [5] http://goo.gl/qGPZK Original: [6] http://goo.gl/rC6qr * InfoQ: Yesod Web Framework (Michael's QCon talk) Domain: infoq.com, Score: 32, Comments: 12 On Reddit: [7] http://goo.gl/93SFv Original: [8] http://goo.gl/Xao7S * Search tree that does not require that items be sorted. Domain: twanvl.nl, Score: 28, Comments: 3 On Reddit: [9] http://goo.gl/R2yLD Original: [10] http://goo.gl/WGfcV * Reverse engineering the ZeroMQ wire protocol for ZMQHS
Re: [Haskell-cafe] How do I get official feedback (ratings) on my GSoC proposal?
On Wed, Feb 15, 2012 at 7:40 PM, Ryan Newton rrnew...@gmail.com wrote: I'm interested in mentoring any projects related to concurrent data structure implementation. Is it too late to propose new projects? http://parfunk.blogspot.com/2012/02/potential-gsoc-haskell-lock-free-data.html Not all all. It's quite early in fact (I tried to get people to think about this early on.) I'd also post it to the Haskell reddit to make sure it gets a bit more exposure (it's kinda buried here in this thread.) -- Johan ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
