December 2010 - Pharo-users

funny idea Symbol vs. Selector
by stephane ducasse May 14, 2015

May 14, 2015

Hi guys I'm thinking aloud... I was wondering if we could not take advantage of a new class: Selector. MethodDict would only contain selectors and not symbols. I remember that I talked about that with hernan. Stef

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permutations / combinations implementation
by Tudor Girba Nov. 2, 2011

Nov. 2, 2011

Hi, Is there an implementation of permutations and combinations of a collection? Cheers, Doru -- www.tudorgirba.com "Presenting is storytelling."

2 1

Z3950 on OSX: module yaz3 not found
by laurent laffont April 25, 2011

April 25, 2011

Hi, I want to use http://www.squeaksource.com/Z3950 Following install instructions, I've dowloaded yaz sources (I've tried 4.1.2 and 3.0.52) as it seems there's no binary for OSX, ./configure && make && make install. Then using latest Seaside One Click image I've copied /usr/local/lib/*yaz* in Seaside.app/Contents/MacOS $ ls ~/Downloads/Seaside.app/Contents/MacOS/ Squeak VM Opt libyaz.a libyaz.la libyaz_icu.a libyaz_icu.la libyaz_server.a libyaz_server.la libyaz.3.dylib libyaz.dylib libyaz_icu.3.dylib libyaz_icu.dylib libyaz_server.3.dylib libyaz_server.dylib But then I have a External Module Not Found on YAZPQFFFILibrary>>createParser " YAZPQDFFILibrary default createParser " <cdecl: YAZPQFParser 'yaz_pqf_create' (void) module: 'yaz3'> ^ self externalCallFailed Any hint ? Cheers, Laurent Laffont -- FFI newbie Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

5 8

Help (perfect for newcomers) migrating a technical FAQ
by Mariano Martinez Peck April 9, 2011

April 9, 2011

Hi folks. I had a good idea and and it perfect for someone that wants to help and don't know how. It is not the most entertained task, but I promise you will learn a lot. Mostly, if you are newcomer. The idea is basically to migrate the FAQ that is here: http://scg.unibe.ch/wiki/faq/pharofaq to a new section in the collaborative Pharo book: http://book.pharo-project.org/ So....any takers ? Let us know so that we generate a new user in the Book The idea is also to check whether what is says is still correct for pharo or if it needs an update. Or even how to improve it (from the view of a newcomer). Thanks Mariano

2 2

Numbers showing up in Transcript
by Daniel Klein Jan. 2, 2011

Jan. 2, 2011

I'm getting a bunch of numbers showing up in the Transcript without my doing anything (that I know of). For example: 18 19 19 20 22 29 557 562 570 571 598 599 514 515 What are they? And why are they showing up? Dan

4 8

minimal pharo image
by Annick Fron Jan. 1, 2011

Jan. 1, 2011

Hi, I am looking for a minimal pharo image. Does anyone know how much file space I need for a minimal image with smalltalk servlets and http at least, or even Seaside ? Annick Fron

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Re: [Pharo-users] Money AND Feature requests
by laurent laffont Dec. 30, 2010

Dec. 30, 2010

Thinking again about this idea of voting system for features we would like to see in Pharo. I won't pay 10 euros / month for someone to develop full time on Pharo on what I do not control (may not be the best words to explain my feelings :) But I'm ready to give 30 to 50 euros to raise money to develop the most wanted feature from a voting system. This give more visibility. It's easier to make a one shot donation than give XXeuros/month. So one way to achieve this is to set up a voting system AND associated raising money system to develop the most wanted feature for one month. Another way is to pick the most wanted feature for Google Summer of code. With enough money one can stop his work for one month and develop exclusively for Pharo. If it's too hard to raise money for one month, we can try 15 days. I've seen that some great developers can do fantastic stuff in 15 days when he loves it :) Laurent Laffont On Fri, Dec 10, 2010 at 3:29 PM, Igor Stasenko <siguctua(a)gmail.com> wrote: > On 10 December 2010 13:32, Davorin Rusevljan > <davorin.rusevljan(a)gmail.com> wrote: > > On Fri, Dec 10, 2010 at 1:06 PM, Alan Rodas <alanrodas(a)gmail.com> wrote: > >> I'm relatively new to Pharo, maybe this has been tried before, but what > >> about a forum where the ideas are published. > >> Each idea could be a thread in the forum, and the people that would like > to > >> contribute may comment there. What it may be interesting is that the > whole > >> discussion about an idea could live in the thread, and you can keep > track of > >> old discussions and the state of a feature. > >> If you keep your ideas for yourself, and you cannot implement something > by > >> your own, that idea will die there. If you allow people to comment on > ideas, > >> maybe two or more people have the same, and they can start working on > >> it together. A forum allows for contacting people, and sharing, and, in > that > >> way, maybe the community will grow (Some developers feel they can do > >> something because they don't have the time to do it by their own, or > they > >> don't have the skills, but they can help to a dev team that share the > same > >> goals.) > >> > >> > >> Is just a thought. > >> If you did it before and didn't work, my apologies. > > > > Well, those are all nice thoughts. I am also relatively new to Pharo > > though, I am with Smalltalk for quite a long time. In my humble > > opinion, while both are always nice to have, at this stage Pharo, much > > needs more hands willing to do the work, than hands filling the wish > > lists and voting about them. > > Abso-freakin-lutely! :) > > > > > The Pharo team did marvelous job, I assume with a lot of investment of > > their personal time and energy. They also did quite good job at > > setting their targets since they already managed at transforming huge > > but sometimes hectic Squeak core into consistent development product. > > > > The way things currently work nicely reflect this, you can freely > > float your ideas on the mailing list, but do not expect that someone > > else should do it just because of that. But the better the idea is, > > and the larger your contribution to Pharo is, chances of it being > > implemented will rise. Otherwise, roll up your sleeves, and do it for > > yourself. If that is too complicated, consider doing something else > > simpler but usefull. > > > > I am always discussing ideas before going to implement them. > And for things i do, if i not sure if i doing the best way, or there > are multiple 'nice' > ways to solve the problem, i asking people, what they prefer. > In that way people staying in course of what i do, and sometimes could > give an advice or help by > other means. > But i don't expecting much, because we all busy with own agendas. > > > rush > > http://www.cloud208.com/ > > > -- > Best regards, > Igor Stasenko AKA sig. > >

6 11

Pharo runtime engine
by Charles Monteiro Dec. 29, 2010

Dec. 29, 2010

first of all pardon my ignorance, trying to be a better community member but I'm still behind. Has the pharo team contemplated setting up the notion of an official "pharo runtime engine" (PRE) , to be specific users would download the runtime engine and subsequently only the "parcels" i.e. whatever the Pharo counterpart is (.st file ins ?) is distributed to users. Although Cincom does not officially support this, its actually quite simple to setup and its the way I am accustomed to delivering apps. Many in the VW community do as well. I long ago abandoned the strip down model but rather "build up". However, the runtime image is indeed an image stripped down of development tools and etc. BTW, I also provide for a modicum of security by encrypting the parcels. thanks in advance, -Charles -- View this message in context: http://forum.world.st/Pharo-runtime-engine-tp3165570p3165570.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

4 3

Multi window Pharo
by Charles Monteiro Dec. 28, 2010

Dec. 28, 2010

Is it still the case the all UIs basically reside within the "one" host Window (World)? Is it not possible to have an app with multiple windows where one of the windows could for example be located onto a second monitor ? thanks in advance, -Charles -- View this message in context: http://forum.world.st/Multi-window-Pharo-tp3165573p3165573.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 1

Loading Seaside into an existing image
by Daniel Klein Dec. 26, 2010

Dec. 26, 2010

First of all, do I really want to install Seaside into an existing image, or should I import my stuff into a dedicated Seaside image? After opening the Repository on 'Seaside', from the Monticello browser, which version of Seaside to I take from the left column of the Repository? And then which one from the right column? I'm assuming I want the latest 'stable' version. I think it's 3.0, but I don't see it in there? I just took a look at the Seaside website and it looks like there is a 'one-click' install for Windows. Is this the best (recommended) way to get it? I don't mind doing things manually. Are there 'image' and 'changes' files that I can download without doing the 'one-click' thing? Sorry for the barrage of questions. Perhaps just a simple answer will suffice. Dan

3 2

CPU utilisation
by Phil Dec. 23, 2010

Dec. 23, 2010

I'm new here so I'm sorry if this is something already covered. I spent a bit of time browsing the archive but didn't see anything obvious. When Pharo is under load it doesn't appear to making use of all processor cores. I'm using Pharo-1.1.1-- Latest update: #11414 with VM 4.2.1b1 under Mac OS X with a Core 2 Duo. Attached is an image of the CPU history: The thing to notice is that it only appears to be using a single core at any one time. Is this a known issue? Cheers, Phil

3 3

Nested classes
by Charles Monteiro Dec. 22, 2010

Dec. 22, 2010

Hi, perhaps a bit off topic, but I was wondering from those that brought Traits to ST, what are their thoughts of the use of nested classes such as used in Ruby and other languages. Good idea? If so should Smalltalk integrate these? Why? Why not ? thanks in advance -Charles www.nycsmalltalk.org -- -- View this message in context: http://forum.world.st/Nested-classes-tp3125667p3125667.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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how to find all occurrances of a string in a package?
by Paul DeBruicker Dec. 22, 2010

Dec. 22, 2010

Hi - I'm trying to learn how to use the RBParseTreeSearcher. I'd like to find all the occurrances of the string 'tabs' in a package I've written. Is there something I can read to learn how to do that? Thanks Paul

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Pharo on Linux 64bit system (Alan Rodas)Re:
by Paul DeBruicker Dec. 20, 2010

Dec. 20, 2010

On 12/20/2010 02:16 AM, pharo-users-request(a)lists.gforge.inria.fr wrote: > Message: 4 > Date: Sun, 19 Dec 2010 23:18:21 -0300 > From: Alan Rodas<alanrodas(a)gmail.com> > Subject: [Pharo-users] Pharo on Linux 64bit system > To: A friendly place where any question about pharo is welcome > <pharo-users(a)lists.gforge.inria.fr> > Message-ID: > <AANLkTi=KCPg15Zht3omD2TYQFBmhEN87PgOSVmk3iWWX(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hello, I recently updated my system to a 64bit one I had trouble running > Pharo. > I made the one click image run by adding manually the missing libraries to > /usr/lib32 but its quite annoing to do that. > So I would like to ask > > Is there a 64 bit vm? > Is there a linux package that contains all necessary lib files to run Pharo > in a 64 bit linux? > > I made a zip file with all this libraries so if there's nothing better let > me know and I will upload it. > > Cheers > -- > Alan Rodas Bonjour I don't think there is an actively maintained 64 bit vm. On 64bit systems you just need to load the 32bit libs by installing the package 'ia32-libs'. On Debian and Ubuntu you can just apt-get install ia32-libs then the one-click app will work just fine. I imagine its the same package name on other distros but I don't know for sure.

1 0

Incorrect cursor behavior in right-to-left scripts
by Alex Albitov Dec. 20, 2010

Dec. 20, 2010

Hi all, I noted incorrect cursor behavior in right-to-left script. When right-to-left script (Hebrew for example) is used the cursor should not advance to next character, but stay in its position and let the characters advance as the text is being inserted. Does anybody knows how to change the cursor's behavior? Thank you, Alex Albitov

1 0

serial driver
by Annick Fron Dec. 20, 2010

Dec. 20, 2010

Hi; Is there a serial driver for linux in Pharo ? Annick Fron

3 2

Pharo on Linux 64bit system
by Alan Rodas Dec. 20, 2010

Dec. 20, 2010

Hello, I recently updated my system to a 64bit one I had trouble running Pharo. I made the one click image run by adding manually the missing libraries to /usr/lib32 but its quite annoing to do that. So I would like to ask Is there a 64 bit vm? Is there a linux package that contains all necessary lib files to run Pharo in a 64 bit linux? I made a zip file with all this libraries so if there's nothing better let me know and I will upload it. Cheers -- Alan Rodas Bonjour

1 0

Unicode in Pharo1.1
by qpogo Dec. 19, 2010

Dec. 19, 2010

Hi all, I'm a real newbie in Pharo and Smalltalk. I want to type in Cyrillic and Hebrew. However I get question marks. I tried to change fonts, but I have only to available fonts: * Accuny * Bitmap DejaVu Sans Which don't have Unicode glyphs. When I try to update fonts from the system, I don't see any result. Thank you. Alex -- View this message in context: http://forum.world.st/Unicode-in-Pharo1-1-tp3092706p3092706.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

3 4

Installing Morphic UI designer in Pharo 1.1
by Charles Monteiro Dec. 19, 2010

Dec. 19, 2010

Pardon the newbie question but I yet don't have a grip how Squeaker's load packages , it seems that there are many, many ways of doing so. In anycase, to my immediate need I would like to check out Morphic Designer. I've tried following the instructions on their web site which are: (Installer mc http: 'http://www.hpi.uni-potsdam.de/hirschfeld/squeaksource/') project: 'MetacelloRepository'; install: 'ConfigurationOfDesigner'. ConfigurationOfDesigner load. However, on the Pharo 1.1. image under Cog VM, there is no such animal as an "Installer", I tried using the Monticello Browser and went fishing for the package but to no avail. thanks in advance Charles www.nycsmalltalk.org -- View this message in context: http://forum.world.st/Installing-Morphic-UI-designer-in-Pharo-1-1-tp3093047… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Cassandra Database access question
by StÃ©phane Ducasse Dec. 14, 2010

Dec. 14, 2010

Begin forwarded message: > From: nithiya nithiya <spnithi.87(a)gmail.com> > Date: December 13, 2010 11:33:59 AM GMT+01:00 > To: pharo-project-owner(a)lists.gforge.inria.fr > Subject: Help me > > Sir, > > I follow the web link http://miguel.leugim.com.mx/index.php/tag/pharo/. > > > > I installed the Pharo smalltalk for Accessing Cassandra Database. > > > > PharoCore images and thrift0.4.0,cassandra0.6.6 are downloaded. > > Can you please help me ,how to load the cassandra.st,thrift.st images in the pharo. > > > > > > > Regards, > > Nithya.S

2 1

"Making ToolSet more flexible", any taker?
by Mariano Martinez Peck Dec. 14, 2010

Dec. 14, 2010

Hi guys. I am out of time, but if someone wants to do a nice and not so difficult contribution to Pharo, is to improve the ToolSet support. Issue is here: http://code.google.com/p/pharo/issues/detail?id=1915 And discussion is here: http://forum.world.st/Questions-about-ToolSet-td1460544.html Cheers Mariano

3 2

DBXPlatform on Pharo
by flebber Dec. 13, 2010

Dec. 13, 2010

Sorry this is a newbie question. I am trying to install squeakdbx on pharo 1.1. I have evaluated Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfFFI'; load. and Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfSqueakDBX'; load. from the pharo page http://www.squeakdbx.org/news http://www.squeakdbx.org/news it says to evaluate DBXPlatform disableAutomaticConnectionReleaseOnGC However evaluating this gives me an error. unknown Variable DBXplatform. What am I doing wrong. -- View this message in context: http://forum.world.st/DBXPlatform-on-Pharo-tp3085025p3085025.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

2 1

Keyboard shortcuts
by Daniel Klein Dec. 12, 2010

Dec. 12, 2010

I have discovered a bunch of keyboard shortcuts on my own but is there someplace I can find a full list? A specific shortcut that would really be convenient is to be able to switch between Pharo 'morphs', like how I do with alt+tab on Windows. For example, I'm always switching between a workspace and the system browser. I'd like not to have to reach for the mouse each time. Is there such a beast? Dan

4 5

SandstoneDB and SortedCollection
by David Zmick Dec. 11, 2010

Dec. 11, 2010

I have a User that hold a Collection of decisions. Each decision holds a sorted collection of candidates and a sorted collection of objectives. User is a subclass of SDActiveRecord. I have class side code to create and example user with an example decision. this code fails with "Error: This message is not appropriate for this object" u := User example. u save This is what is at the very top of the debugging output: SortedCollection(Object)>>error: SortedCollection(Object)>>shouldNotImplement SortedCollection>>at:put: [] in SortedCollection(SequenceableCollection)>>sandstoneDeepCopyVisits: I am not sure where to go from here. Thank you for any help you might have! David Zmick /dz0004455\

3 5

Feature requests
by andres Dec. 10, 2010

Dec. 10, 2010

Ok, so here goes an attempt of defining how I think feature requests could be handled and why I think that the meritocracy is not always the best choice. UserVoice and similar sites The idea is to let people ask for features they want in a quick way. I think my question about native window support could be a good example: someone ask if a feature exists. If it doesn't, he can just go and record somewhere "hey, I would like X". If other people also want X they can put a vote (or more than one) into the feature. Since votes are finite per user you have to think where are you putting your vote. Generally the product owner would choose some of the top ranked requests and decide to implement them. How many requests are selected per release or what is the criteria for choosing them is up to the product owner (e.g. you may choose #1 and #3 in the ranking, since #2 may be too complex for a given release). I guess that as long as the rules are clear (e.g. choose at least 1 feature request from the top five or whatever the dev team feels is ok for them) things would run smooth. Of course you can consider alternatives, like giving contributors more votes to encourage participation, get an extra vote for each bug you found, etc. Advantages: Its easy, it welcomes newcomers, it allows to re-think your vote or change it if you see that someone posted a feature that you also require, it allows the dev team to measure the user's expectations. Disadvantages: if you don't have enough population the requests may not reflect the real community needs, as a dev team you may end up implementing something you don't consider relevant. About Meritocracy While I understand the idea behind "first do something, then ask for something" I don't think it is always the best choice. For someone to commit to do something he must feel he is inside a community, and that takes some time. Of course I'm not saying that someone who just downloaded Pharo should dictate what will be included in the next release, I'm just saying that his voice shouldn't be banned because he hasn't yet contributed. And I am convinced that it is more likely to have a newcomer commited to a cause if you listen to him rather than if you say "first do something, then I may listen to your requests". But what concerned me the most was this: The only influence we deeply understand is ***Contributions*** with either videos, pdf, ads, promotion actions or ST code. So if you want something to happen for real in pharo then you should consider how you can make this happens. So how do you measure someone's contribution and the rights he has? Talking about pharo at my university counts for changing a line of code, writing some slides for a method, creating a bunch of screencasts for some classes? Also, contributing to Smalltalk in general counts as a contribution to Pharo? Up to what extent? And if I contributed and you never knew? Should I present my credentials asking for your reconsideration? My point is that, while contributions are fine and I also like for people to give in return for what they received, it is sometimes hard to measure and be fair to everybody. As you explained it seems that the decision rests in the subjective view of the core developers. That model is of course a valid one, I just consider it is not how healthy communities are built. Best regards, AndrÃ©s

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IRC meeting notes
by Adrian Lienhard Dec. 7, 2010

Dec. 7, 2010

This evening the announced IRC meeting took place. I've published the notes as a blog post on our website: http://pharo-project.org/news?article=irc-meeting-notes Cheers, Adrian ___________________ http://www.adrian-lienhard.ch/

2 1

Native Windows in Pharo
by andres Dec. 7, 2010

Dec. 7, 2010

Hi list! I think I finally can start a small in-house project in Pharo, which makes me quite happy since I've been willing to do so for some time now. I have however to solve an issue before: is there a way of using native windows instead of the emulated ones? The app I have to work on is pretty much based on having different independent windows floating around :( . I saw the Native Windows thread that dates back to 2009 and couldn't find more information on the subject, so any pointers are much appreciated. Thanks in advance! AndrÃ©s

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Fastest matrix implementation?
by HernÃ¡n Morales Durand Dec. 7, 2010

Dec. 7, 2010

Hi list In the context of a scientific project here we are building big matrices for later processing, mostly exporting to custom file formats for PLINK, HaploView, etc (bioinformatics tools). I've tested one of our scripts in both Pharo 1.1 (not CogVM) with the corresponding Python 2.6 implementation (without PyPy), and the performance in Python was superior, about 8x faster than ST. So I wonder if anyone knows the fastest (or a faster) implementation of Matrix than the included by default in Collections? Cheers, -- HernÃ¡n Morales Information Technology Manager, Institute of Veterinary Genetics. National Scientific and Technical Research Council (CONICET). La Plata (1900), Buenos Aires, Argentina. Telephone: +54 (0221) 421-1799. Internal: 422 Fax: 425-7980 or 421-1799.

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Re: [Pharo-users] Fastest matrix implementation?
by HernÃ¡n Morales Durand Dec. 7, 2010

Dec. 7, 2010

Hi Benoit, Thanks for your suggestions! I did some metrics again with a subset of my files with fewer lines, and here are the results Lines Milliseconds 116 59 2784 1415 63936 18675 175840 48216 534760 149812 After implementing your improvements: Lines Milliseconds 116 44 2784 1067 63936 13991 175840 37521 534760 112906 Since I can assume my CSV files doesn't include quotes, I've removed the qouted character checking subclassing a special parser for files with qoutes: Lines Milliseconds 116 37 2784 888 63936 11521 175840 31905 534760 96549 which is an acceptable improvement considering files of millions of lines. If I can make some time for implementing a primitive, I will update with more results. Best regards, 2010/12/7 Benoit St-Jean <bstjean(a)hotmail.ca>: > Hi Hernan, > > I had a look at the Text Parser package and here's a little suggestion... > > In class STextParser, there seems to be place for optimization (I know, I > *hate* using this word with Smalltalk, I've always preferred simplicity over > harder-to-read-code) in one particular method, namely #nextInLine. > > A quick test in a workspace shows that removing message sends for methods > #cr and #lf (making the class variables instead) as well as using #== > instead of #= make this method 3 to 5 times faster.Â Since it's probably > called millions and millions of times in your case, this might help... > > So it would look like: > > nextInLine > Â Â Â | next | > > Â Â Â next := stream next. > Â Â Â (next == MyCr or: [next == MyLf]) > Â Â Â Â Â Â ifTrue:Â Â Â [stream skip: -1. > Â Â Â Â Â Â Â Â Â Â Â Â next := nil]. > Â Â Â ^ next > > > The original method executes in 23.45 seconds > Removing the message sends (Character cr and Character lf) and replacing > them with class vars brings that down to 10.9 seconds. > Then, replacing #= by #== brings the average time to 4.25 seconds. > > Tests were executed for 10000000 characters. > > Hope this helps! > > Keep me posted! > > > ----------------- > Benoit St-Jean > A standpoint is an intellectual horizon of radius zero. > (Albert Einstein) > > > > >> Date: Tue, 7 Dec 2010 03:10:20 -0300 >> From: hernan.morales(a)gmail.com >> To: pharo-users(a)lists.gforge.inria.fr >> Subject: Re: [Pharo-users] Fastest matrix implementation? >> >> I cannot send the CSV files because they are private data currently >> being used for research, just to give a hint I'm parsing files from >> 800,000 to 19 millions of lines. >> >> I'm using http://www.squeaksource.com/SimpleTextParser.html which is >> based in http://www.squeaksource.com/CSV.html plus some useful >> additions (for me). >> >> 2010/12/7 Benoit St-Jean <bstjean(a)hotmail.ca>: >> > What are you using to read those CSV files?Â Do you have a file so we >> > can >> > have a look at it and possibly speed up the reading of the CSV file? >> > >> > ----------------- >> > Benoit St-Jean >> > A standpoint is an intellectual horizon of radius zero. >> > (Albert Einstein) >> > >> > >> > >> > >> >> Date: Mon, 6 Dec 2010 16:54:37 -0300 >> >> From: hernan.morales(a)gmail.com >> >> To: pharo-users(a)lists.gforge.inria.fr >> >> Subject: Re: [Pharo-users] Fastest matrix implementation? >> >> >> >> Hi Benoit, >> >> >> >> I've loaded the package but it seems the port is not complete, i.e. if >> >> you evaluate: >> >> >> >> DhbMatrix new: 10 >> >> >> >> you will get a MessageNotUnderstood: Interval>>asVector because >> >> extension methods were not ported. I uploaded to the SqueakSource a >> >> new version including extension methods and now most tests pass. >> >> >> >> Concerning the performance issues, I've narrowed my code to only >> >> measure the writing and reading of a matrix of 710500 elements, >> >> resulting in 58239 milliseconds for the native Matrix implementation >> >> and 56920 for DhbMatrix. >> >> It seems my performance problem involves reading and parsing a "CSV" >> >> file >> >> >> >> Elements Matrix DhbMatrix >> >> 53400 18274 17329 >> >> 175960 61043 60722 >> >> 710500 379276 385278 >> >> >> >> I will check if it's worth to implement a primitive for very fast >> >> parsing of CSV files. >> >> Cheers, >> >> >> >> 2010/12/5 Benoit St-Jean <bstjean(a)hotmail.ca>: >> >> > Have you tried the matrix implementation in the numerical package >> >> > from >> >> > Didier H. Besset? >> >> > >> >> > http://squeaksource.com/@Q45T_l348Ag07gGT/VMsGzidC >> >> > >> >> > >> >> > >> >> > >> >> > ----------------- >> >> > Benoit St-Jean >> >> > A standpoint is an intellectual horizon of radius zero. >> >> > (Albert Einstein) >> >> > >> >> > >> >> > >> >> > >> >> >> Date: Sun, 5 Dec 2010 17:33:17 -0300 >> >> >> From: hernan.morales(a)gmail.com >> >> >> To: pharo-users(a)lists.gforge.inria.fr >> >> >> Subject: [Pharo-users] Fastest matrix implementation? >> >> >> >> >> >> Hi list >> >> >> >> >> >> In the context of a scientific project here we are building big >> >> >> matrices for later processing, mostly exporting to custom file >> >> >> formats >> >> >> for PLINK, HaploView, etc (bioinformatics tools). I've tested one of >> >> >> our scripts in both Pharo 1.1 (not CogVM) with the corresponding >> >> >> Python 2.6 implementation (without PyPy), and the performance in >> >> >> Python was superior, about 8x faster than ST. >> >> >> So I wonder if anyone knows the fastest (or a faster) implementation >> >> >> of Matrix than the included by default in Collections? >> >> >> >> >> >> Cheers, >> >> >> >> >> >> >> -- >> >> HernÃ¡n Morales >> >> Information Technology Manager, >> >> Institute of Veterinary Genetics. >> >> National Scientific and Technical Research Council (CONICET). >> >> La Plata (1900), Buenos Aires, Argentina. >> >> Telephone: +54 (0221) 421-1799. >> >> Internal: 422 >> >> Fax: 425-7980 or 421-1799. >> >> >> > >> >> >> >> -- >> HernÃ¡n Morales >> Information Technology Manager, >> Institute of Veterinary Genetics. >> National Scientific and Technical Research Council (CONICET). >> La Plata (1900), Buenos Aires, Argentina. >> Telephone: +54 (0221) 421-1799. >> Internal: 422 >> Fax: 425-7980 or 421-1799. >> >

1 0

Pharocasts: access SQLite databases through ODBC
by laurent laffont Dec. 7, 2010

Dec. 7, 2010

See how to setup and access an SQLite database through ODBC on Windows. Recorded by Torsten Bergmann. Enjoy: http://www.pharocasts.com/2010/12/access-database-through-odbc.html Laurent Laffont Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

2 1

SMTPClient issue
by Daniel Klein Dec. 6, 2010

Dec. 6, 2010

I can't seem to get: SMTPClient example to work. I changed the 'deliverMailFrom:', 'to:' and 'usingServer:' arguments to valid entries but I keep getting a 'TelnetProtocolError'. Could someone else please test this out cos I think it's broken. Please prove me wrong ;-) I'm using: Pharo-1.1.1-- Latest update: #11414 on Windows XP Pro SP3. Dan

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[Pharo] Checkbox
by alexandre bp Dec. 3, 2010

Dec. 3, 2010

Hi, I have a problem with checkboxes. I'm trying to add a checkbox at each line of a table. I have tried several things(the last tries are in comments): addActionColumn columns add: ((WAReportColumn new) title: ''; valueBlock: [ :row :html | html span with:[ "checked ifTrue:[BibliList bibliCollection add: row]." html checkbox value: checked; onTrue:[BibliList bibliCollection add: row] onFalse:[]. "onClick: [checked := true]" "callback:[:value | value ifTrue: [BibliList bibliCollection add: row]]" ]]). Unfortunately, nothing seems to work...when I click on the checkbox, nothing happen and my list bibliCollection (which is an OrderedCollection) is still empty. Thx for your help alex

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Pharo integration in enterprise feedback
by laurent laffont Dec. 3, 2010

Dec. 3, 2010

Hi, I'm looking for feedback on Pharo integration in enterprise. Especially how you have managed to put Pharo in your enterprise. For example, I'm involved in web application development in other languages. For functional testing I'm able to script Selenium using Pharo thanks to WebTester. So Pharo has made a small step at my work. I'm looking for such stories. Cheers, Laurent Laffont Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

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[ANN] New Smalltalk VM Beginners mailing list
by Mariano Martinez Peck Dec. 1, 2010

Dec. 1, 2010

Hi everybody. We want to announce that we've created a mailing list called "Smalltalk VM Beginners" where all the people interested in VM can share knowledge. The aim of this mailing list is create a good and positive energy and spread the knowledge around the Squeak VM. If you always wanted to know something on the VM but never dare to ask, join the mailing-list, may be we will not know it but we will try hard to learn it together. The idea is that we can help each other, welcome people to learn about the VM, and increase and share the knowledge about it in the community. Everybody can ask questions, everybody can help. This mailing list has more or less the same idea of pharo-users or squeak-beginners. Now, to clarify the objectives of the mailing list, we propose some requirements: - Be polite, respectful. - No question is stupid and all questions are welcome. We welcome the most basic questions someone can ask about the VM like, "is it written in C?" "How can I download the code?" - This mailing list should be useful for people that are just interested in knowing a little about the VM, to those who want to know how certain things are done, and specially for those that are learning about the VM because they need to extend or modify it. - If you have a heavy question, you will probably not get the answer in this mailing-list but this is not a problem you can ask in the Squeak VM mailing list. - The idea is that we can help each other. So, the link to the mailing list is: http://lists.squeakfoundation.org/mailman/listinfo/vm-beginners Address: vm-beginners(a)lists.squeakfoundation.org. Cheers

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Re: [Pharo-users] pharo 1.1. headless server startup and shutdown
by Paul DeBruicker Dec. 1, 2010

Dec. 1, 2010

On 12/01/2010 06:04 AM, pharo-users-request(a)lists.gforge.inria.fr wrote: > Message: 1 > Date: Tue, 30 Nov 2010 09:58:07 -0500 > From: Jon Hancock<jhancock(a)shellshadow.com> > Subject: > To:pharo-users@lists.gforge.inria.fr > Message-ID:<4CF510FF.9070909(a)shellshadow.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > I've found a few tidbits on how to start pharo headless. > I'm using the most recent Pharo-1.1-OneClick.app which works fine for > dev on OS X. When I try to move this to linux, I get troubles. > > To keep things simple, I've copied the pharo.sh script as pharo-headless.sh. > > Here is the script: > --- BEGIN --- > #!/bin/sh > > # path > ROOT=`dirname $0` > BASE="$ROOT/Contents/Linux" > > # execute > exec "$BASE/squeakvm" \ > -plugins "$BASE" -mmap 100m -encoding latin1 \ > -vm-display-X11 -vm-sound-null -headless \ I think the preceding line should be -vm-display-null -vm-sound-null > "$ROOT/Contents/Resources/pharo.image" > > --- END --- > > On ubuntu 10.04 32-bit I get this: > jhancock@pi1:~/Pharo-1.1-OneClick.app$ ./pharo-headless.sh > libSM.so.6: cannot open shared object file: No such file or directory > could not find module vm-display-X11 > Aborted > > On ubuntu 8.04 64-bit I get this: > knr@us1:~/Pharo-1.1-OneClick.app$ ./pharo-headless.sh > exec: 15: ./Contents/Linux/squeakvm: not found make sure you have the package ia32-libs installed on the 64bit system. > I really need to get it running on the ubuntu 8.04 64-bit system. > Once I get past this problem, what is the best method to kill/shutdown > pharo from outside the dev environ? I don't require to save the image, > just safely kill it so it doesn't hold on to resources like socket > listener, etc... > > thanks, Jon > > > > > > > > > ------------------------------

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