August 2011 - Esug-list - lists.esug.org

[ANN] LatAm Squeaksource Mirror
by Johan Fabry Aug. 11, 2011

Aug. 11, 2011

Hi all, I'm happy to announce that we have a public, read-only Squeaksource mirror up and running at the Universidad de Chile. The URL is: http://www.dsal.cl/squeaksource/ TECHNICAL DETAILS BELOW. Feel free to broadcast this announcement! MOTIVATION: For us, Switzerland is a long way and the connection to Squeaksource has always been painfully slow. We've set up this mirror to help to address this, and I imagine that it will be of use not only for the Chileans but also other countries in latin america, which is why I am announcing it here. ITS TRANSPARENT: I've worked out a way to make the use of this mirror transparent when using Pharo 1.3: you just use monticello as always, and have a setting to redirect loads from Squeaksource to wherever you want. I have successfully loaded Moose and Seaside from the mirror using this package, so it should work for you. And I can tell you, it was blazingly fast: Seaside loaded in 5m45, and most of the time was spent compiling ... ;-) So try the mirror and the package out, send me your comments, we want to work on this to make Squeaksource a better experience for everybody. HOW TO USE from Pharo 1.3: - Get the redirection package from http://www.squeaksource.com/MonticelloRedirect - To load from the mirror instead of from Squeaksource, do-it of the following: MRManager redirectFrom: 'http://www.squeaksource.com/' to: 'http://www.dsal.cl/squeaksource/'. - To remove this redirection: MRManager removeFrom: 'http://www.squeaksource.com/'. - See comments of MRManager for more info. MRManager list can be useful at some times. - Only 2 classes, < 10 methods, not counting accessors. The trick is the use of MethodWrappers. - I did not test this in Squeak or other versions of Pharo. Feel free to try it out in your environment and send me patches if needed. - There is no UI, contributions are welcome!! DETAILS ON THE MIRROR - It's a full copy of Squeaksource, updated daily. - The mirror is read-only: if you want to make a commit you still have to do it in Squeaksource. This is to avoid all the complications of distributed writes. - Updates happen once a day, before midnight Chilean time. Updates take typically (up till now) 200 minutes (!), average download speed here is 200KB/s :-( - The Squeaksource team has been so kind as to provide a list of the packages that are in Squeaksource, refreshed daily and we pass this to wget (with some massaging of the data inbetween). - The Squeaksource list of packages is available here: http://scg.unibe.ch/download/SSProjectList/projectList.txt - The software that does the mirror is available here: https://github.com/vramiro/easy-wget-mirror MANY THANKS TO: - Daniel Galdames for doing the original mirroring tests - Victor Ramiro for taking Daniels' work and putting it in production - The Squeaksource team for providing the daily list of packages, especially Fabrizio Perin and Mircea Lungu - You for trying it out and telling us about it! ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

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Re: [Esug-list] Preparing my presentation of NativeBoost
by Юрий Мироненко Aug. 6, 2011

Aug. 6, 2011

> > Well, let me try. Sometimes it's neccessary to make dot product of big > > numerical arrays. So, maybe it's possible to implement fast version of > > it with NativeBoost. > > > This is simple to do: multiply pairs in loop and collect the sum :) Do you mean it's easy with NativeBoost? My doubt is accessing of smalltalk's collections from provided low-level code. Another problem is how to prepare this low-level code, how to put it inside the method and so on. Something like "Hello World" for NativeBoost. > I don't remember an algorithm for multiplying matrices of arbitrary size. > I was taught it in university but it was long time ago :) Matrix algoritm is not that hard to find...wikipedia, you know. Generally speaking, if dot product solution will be demonstrated, I think, matrix multiplication will be easy. > ... and it converts it to utf8 encoding before pushing it to function. What function do you mean? One of smalltalk object's methods or something other?

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Preparing my presentation of NativeBoost
by Igor Stasenko Aug. 6, 2011

Aug. 6, 2011

Hi, i'd like to know what you would like to know about things you don't know about NativeBoost :) because i don't know what would you like to know more: - more in-depth about an implementation details - more about examples and how to use it just thinking, what i should focus on. For those who never heard about this project before, here the link to project home page: http://code.google.com/p/nativeboost/ See you in Edinburg. -- Best regards, Igor Stasenko AKA sig.

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Smalltalk job offer in Luxembourg
by Stéphane Ducasse Aug. 6, 2011

Aug. 6, 2011

Dear friends For one of its customer, LOGOS IT Services is looking for external support by one consultant (f/m) Senior Software Developer - Smalltalk Role/Area: Developer to participate to technical design, coding, unit testing and bug fixing Qualifications/Required Skills Senior Software Engineer with advanced SmallTalk development skills. Minimum 5 years experience in smalltalk development. Experience in financial industry is required If possible, ability to coach people English is the working language Motivation and ability to ramp up rapidly is key Additional Information Starting Date : asap 3 month contracts, renewable, estimated duration of the mission: until June 2012 Location: Luxembourg Please contact LOGOS IT Services SA 427, Route de Thionville L - 5 8 8 7 A l z i n g e n Tél: +352.26.36.55.33 Fax: +352.26.36.55.35 Mail: info(a)logos-its.com

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Re: [Esug-list] Preparing my presentation of NativeBoost
by Юрий Мироненко Aug. 5, 2011

Aug. 5, 2011

> i'd like to know what you would like to know about things you don't > know about NativeBoost :) Well, ok, first thing I always like to see is examples of usage, you know. I mean not "packages which uses my package". I mean something like "Imagine, you want...some situation described.... You can do it with NativeBoost this way: ....code example...".

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Writing an object graph into a no-sql database [WAS] Re: [Seaside] ESUG SummerTalk - Fuel, binary object serializer
by Mariano Martinez Peck Aug. 5, 2011

Aug. 5, 2011

> > I am looking at using Riak ( http://wiki.basho.com/ ) with Pharo. When > storing a “business object” you have two choices: > > - Store a binary BLOB representing your object graph. > - Store the object graph as JSON data. > > The last option essentially means you must do something similar to OR > mapping, so I would prefer the first option. With Riak, you will soon > be able to store additional indexed properties, which you later will > be able to query. So you store your whole business object as a BLOB, > together with those properties you need to query. > > Hi guys. Sorry to come back with this old post, but now I am interested ;) Right now, I have a requirement where I need to write a graph into a file. I am using Fuel for that. Each graph, has its own file. In the image side I just store the filename, When I need to load it it reads such file and materialize it with Fuel. I was thinking going a step forward and use a key/value (a.k.a no-sql) database. With Fuel, I can take a graph, and serialize directly into a ByteArray, hence I can take a graph to swap, I assign an ID, and and save it into the database. In the image side, I keep that ID. Then, when needed, I search it in the database and then after with that ByteArray found, I materialize it with Fuel. So...first question is, do you think that could be faster/better than directly writing into a file as I am doing now? Now, which are the available Pharo wrappers for no-sql databases that let me do that? I would appreciate any link or documentation about them. What do I need to use such databases from Pharo? FFI and a library installed in my machine? are there binaries for Mac OS? Thanks in advance, -- Mariano http://marianopeck.wordpress.com

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SMALLTALK OPPORTUNITY -
by Hayley Jenkins Aug. 4, 2011

Aug. 4, 2011

Dear sir/madam, Please find below brief details of a new role (contract) which may be of interest to you or a colleague. If you are not interested but can recommend someone who we place in this role, we will offer you a referral fee. Position: Smalltalk developer (exp with C++) Term: 3 Months extendable Location: Luxembourg Rate: Attractive/negotiable My client is a leading banking institution and they are looking for a Smalltalk Developer with good knowledge of SQL. You will be asked to help develop the technical design, coding, unit testing for a number of projects within the bank. This will be a long term contract. A few further details on the role are below; * Advanced SmallTalk development skills. * Minimum 5 years experience in smalltalk development. * Experience in financial industry is required * If possible, ability to coach people * English is the working language * Motivation and ability to ramp up rapidly is key I am really keen on hearing your thoughts on this, even if the role is not of interest. I have heard that you guys are the best and I am working within a very niche market, and I am very keen to expand my knowledge!:) If there is anything you would like to ask me, I would be more than happy to answer any questions. I hope to hear from you soon! Kind regards, Hayley Jenkins | I.T. Skillfinder Resourcer 20 St Dunstan's Hill | London | EC3R 8HY DDI +44(0) 20 7256 3555 | Fax +44(0) 20 7256 3551 www.it-skillfinder.co.uk<http://www.it-skillfinder.co.uk/> [cid:image001.jpg@01CC52B7.46692350]<http://www.recruiter.co.uk/50-recruitment-firms-growing-up-fast/1003942.art…> [cid:image002.gif@01CC52B7.46692350] [cid:image003.gif@01CC52B7.46692350] [cid:image004.jpg@01CC52B7.46692350] P Please consider the environment before printing The information in this email is confidential and may be legally privileged for use by the addressee only. If you are not the intended recipient, you must not use, disclose, distribute, copy, print or rely on this message. Please notify the sender by return email and then delete the message from your computer. I.T. Skillfinder accepts no responsibility for changes made to this message after it was sent Although this email and any attachments are believed to be free of any virus, or any other defect which might affect any computer or IT system into which they are received and opened, it is the responsibility of the recipient to ensure that they are virus free and no responsibility is accepted by I.T. Skillfinder for any loss or damage arising in any way from receipt or use thereof. Any opinions or advice contained in this email are not necessarily those of I.T. Skillfinder Ltd. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________

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ESUG 2011 Innovation Technology Awards: Reminder
by jdelgado Aug. 3, 2011

Aug. 3, 2011

Hi, Again, a reminder: ESUG 2011 Innovation Technology Awards http://esug.org/Conferences/2011/InnovationTechnologyAwards New Deadline: August 15. Have you written innovative Smalltalk? The developers of any Smalltalk-based software can enter by submitting a 3-5min video of their software. Entrants demo their systems in a session at the end of Monday August 22nd 2011, after which the conference attendees vote. (A vote consists in providing a sorted list of 3 preferred pieces of software.) The top 3 teams with the most innovative software will receive, respectively, 500 Euros, 300 Euros and 200 Euros. The results are announced in the Awards ceremony that is held during the social event. Applicants should provide the following information on the conference registration server. Once you have registered your personal info, an "Awards" menu allows submitting your software. You can provide this information when you first register, or login again later and update your details. Info to provide: Name of the software Licence information (free, or shareware, or a commercial) Name of the Smalltalk dialect used Names, Affiliation and Country of developers URL for a video (3-5 min) showing a screencast / demo of the software URL for downloading the software or at least a runnable demo Deadline: August 15 Any Smalltalker can apply (students, companies, ...). The presented piece of code/software should be written in Smalltalk or directly support Smalltalk (e.g. Smalltalk VM). All Smalltalk dialects are accepted. The applicant should own the copyright/copyleft of presented code or at least be the official representative of the copyright/copyleft owner. The software should be available on-line for evaluation (time-limited evaluation version, demo version, free for non-commercial use ...). Bests Jordi -- View this message in context: http://forum.world.st/ESUG-2011-Innovation-Technology-Awards-Reminder-tp371… Sent from the ESUG mailing list archive at Nabble.com.

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