Squeak-dev June 2010

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96 participants
269 discussions

The Trunk: System-tbn.344.mcz
by commits＠source.squeak.org 22 Jun '10

22 Jun '10

Torsten Bergmann uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-tbn.344.mcz ==================== Summary ==================== Name: System-tbn.344 Author: tbn Time: 22 June 2010, 10:51:39.351 am UUID: 5f532634-f21d-ed42-9397-c7512e757b03 Ancestors: System-ar.343 recategorize #isRunningCog under vm =============== Diff against System-ar.343 =============== Item was changed: + ----- Method: SmalltalkImage>>isRunningCog (in category 'vm') ----- - ----- Method: SmalltalkImage>>isRunningCog (in category 'sources, changes log') ----- isRunningCog "Returns true if we're running Cog" ^[(self vmParameterAt: 46) > 0] on: Error do:[:ex| ex return: false]!

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CogVM
by Torsten Bergmann 22 Jun '10

22 Jun '10

Jannik wrote on Pharo-list (see [1]): > Thanks Levente, > > Now, I continue to try Cog, and I have different bugs: > - graphical bug: someties, when I move a window, text disappears during the > move. (I put a screenshot in attachement) > This was a problem which is fixed in newer VM versions. (see http://code.google.com/p/pharo/issues/detail?id=1803) Looks like Juan's fix is not (yet) included in Cog VM. Which also leads to the following questions 1. will Cog development continue in parallel or be folded back into the usual VM's from www.squeakvm.org. 2. where is the best place to discusss Coq related issues, currently people discuss on squeak, pharo and vm-list. -> I would vote for the VM list Bye T. [1] http://lists.gforge.inria.fr/pipermail/pharo-project/2010-June/028521.html -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

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CogVM
by Torsten Bergmann 22 Jun '10

22 Jun '10

Hi Eliot, havent had the time to play with it - but your announcement was already a real surprise. I know that is amazing work and by making it available we can all profit and learn from it! I hope our community is able to help moving it forward, report and fix bugs and by doing so give you and Teleplace something in return. Thanks to all who helped making this possible! Bye T. -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

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The Trunk: System-ar.343.mcz
by commits＠source.squeak.org 22 Jun '10

22 Jun '10

Andreas Raab uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-ar.343.mcz ==================== Summary ==================== Name: System-ar.343 Author: ar Time: 21 June 2010, 8:36:36.846 pm UUID: 178a99de-0c0e-7c42-bf93-a594eacce7aa Ancestors: System-ar.342 Fixes an ancient issue when launching Squeak with a script as argument. The code the converted the script name to a file url was just utterly and horribly broken and could not possibly work. With the fix, one can now again start Squeak with arguments of the form: squeak mysqueak.image file.st squeak mysqueak.image scripts/file.st squeak mysqueak.image ../../svn/scripts/file.st (and of course any kind of URL) =============== Diff against System-ar.342 =============== Item was changed: ----- Method: ProjectLauncher>>startUpAfterLogin (in category 'running') ----- startUpAfterLogin | scriptName loader isUrl | self setupFlaps. Preferences readDocumentAtStartup ifTrue: [ HTTPClient isRunningInBrowser ifTrue:[ self setupFromParameters. scriptName := self parameterAt: 'src'. CodeLoader defaultBaseURL: (self parameterAt: 'Base'). ] ifFalse:[ scriptName := (Smalltalk documentPath) ifNil:['']. scriptName := scriptName convertFromSystemString. scriptName isEmpty ifFalse:[ "figure out if script name is a URL by itself" isUrl := (scriptName asLowercase beginsWith:'http://') or:[ (scriptName asLowercase beginsWith:'file://') or:[ (scriptName asLowercase beginsWith:'ftp://')]]. + isUrl ifFalse:[ + "Allow for ../dir/scriptName arguments" + scriptName := (FileDirectory default uri + resolveRelativeURI: scriptName) asString]]. - isUrl ifFalse:[scriptName := 'file:',scriptName]]. ]. ] ifFalse: [ scriptName := '' ]. scriptName isEmptyOrNil ifTrue:[^Preferences eToyFriendly ifTrue: [self currentWorld addGlobalFlaps]]. loader := CodeLoader new. loader loadSourceFiles: (Array with: scriptName). (scriptName asLowercase endsWith: '.pr') ifTrue:[self installProjectFrom: loader] ifFalse:[loader installSourceFiles]. !

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The Trunk: Tests-ar.83.mcz
by commits＠source.squeak.org 22 Jun '10

22 Jun '10

Andreas Raab uploaded a new version of Tests to project The Trunk: http://source.squeak.org/trunk/Tests-ar.83.mcz ==================== Summary ==================== Name: Tests-ar.83 Author: ar Time: 21 June 2010, 8:30:12.745 pm UUID: 8a6352eb-2cfe-ab4e-9749-9337b22f19be Ancestors: Tests-HenrikSperreJohansen.82 Guard TestObjectsAsMethods against crashes on Cog. =============== Diff against Tests-HenrikSperreJohansen.82 =============== Item was changed: ----- Method: TestObjectsAsMethods>>testDNU (in category 'as yet unclassified') ----- testDNU + + "Does crash VM with Cog" + Smalltalk isRunningCog ifTrue:[^self assert: false]. + self class addSelector: #answer42 withMethod: AbstractObjectsAsMethod new. self should: [self answer42] raise: MessageNotUnderstood. self class basicRemoveSelector: #answer42.! Item was added: + ----- Method: TestObjectsAsMethods>>expectedFailures (in category 'as yet unclassified') ----- + expectedFailures + "Does crash VM with Cog" + + ^Smalltalk isRunningCog + ifTrue:[#(testAddNumbers testDNU testAnswer42)] + ifFalse:[#()]! Item was changed: ----- Method: TestObjectsAsMethods>>testAddNumbers (in category 'as yet unclassified') ----- testAddNumbers + "self debug: #testAddNumbers" + + "Does crash VM with Cog" + Smalltalk isRunningCog ifTrue:[^self assert: false]. + - "self debug: #testAddNumbers" "md: I had to comment out the error... did strange things" self class addSelector: #add:with: withMethod: ObjectsAsMethodsExample new. self assert: (self add: 3 with: 4) = 7. "self assert: (self perform: #add:with: withArguments: #(3 4)) = 7. " self class basicRemoveSelector: #add:with:.! Item was changed: ----- Method: TestObjectsAsMethods>>testAnswer42 (in category 'as yet unclassified') ----- testAnswer42 + + "Does crash VM with Cog" + Smalltalk isRunningCog ifTrue:[^self assert: false]. + self class addSelector: #answer42 withMethod: ObjectsAsMethodsExample new. self assert: self answer42 = 42. self class basicRemoveSelector: #answer42.!

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The Trunk: System-ar.342.mcz
by commits＠source.squeak.org 22 Jun '10

22 Jun '10

Andreas Raab uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-ar.342.mcz ==================== Summary ==================== Name: System-ar.342 Author: ar Time: 21 June 2010, 8:27:54.927 pm UUID: d5cb0874-d764-e64c-b008-24dda2e88d0d Ancestors: System-cmm.341 Add a test to identify whether the image is running under Cog or not. =============== Diff against System-cmm.341 =============== Item was added: + ----- Method: SmalltalkImage>>isRunningCog (in category 'sources, changes log') ----- + isRunningCog + "Returns true if we're running Cog" + + ^[(self vmParameterAt: 46) > 0] on: Error do:[:ex| ex return: false]!

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Daily Commit Log
by commits＠source.squeak.org 22 Jun '10

22 Jun '10

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2010-June/003478.html Name: System-cmm.341 Ancestors: System-ar.340 Fixed 'revert to previous version' of class-side methods menu. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2010-June/003479.html Name: MorphicExtras-cmm.88 Ancestors: MorphicExtras-bf.87 Protect from restoring color to nil when using PostscriptCanvas for the first time. =============================================

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Re: too many copiedValues [was Interesting survey about smalltalk]
by Nicolas Cellier 22 Jun '10

22 Jun '10

2010/6/22 Eliot Miranda <eliot.miranda(a)gmail.com>: > Hi Nicolas, > > On Mon, Jun 21, 2010 at 2:59 PM, Nicolas Cellier > <nicolas.cellier.aka.nice(a)gmail.com> wrote: >> >> 2010/6/21 Nicolas Cellier <nicolas.cellier.aka.nice(a)gmail.com>: >> > Compiler hack is available for Squeak 3.9 at >> > http://bugs.squeak.org/view.php?id=2918 >> > Load the 3 .cs in indicated order. >> > >> > I will publish an update for latest trunk at the same place when I'll >> > have a bit of time... >> > >> >> Finally, I published a Compiler version for latest trunk in this >> SqueakSource repository >> Plus a hack or two to make external interface loadable in closure VM >> (there is an additional limitation in closure that is max number of >> block copied values<16) > > I'm interested to see the code that exceeds this limitation. Hopefully > it'll be temporary, but it'll take a bytecode redesign to overcome, so I > can't fix this anytime soon. Sorry it has bitten you! Oh, I guess one wouldn't code so many temps. It's some kind of auto-generated code for FFI call of LAPACK functions. LAPACK is written in FORTRAN. FORTRAN has all parameters passed by reference. Consequence is that many arguments passed to a LAPACK function (like dimensions of matrices) require an allocation. I generated the allocation for passing some scalar inputs inside a block pretected with an #ensure: ensuring deallocation... But many LAPACK arguments means many temps and two cases of copiedValues > 15. Methods are: LapackLibrary>>hegvdWithitype: itype jobz: jobz uplo: uplo n: n a: a lda: lda b: b ldb: ldb w: w work: work lwork: lwork rwork: rwork lrwork: lrwork iwork: iwork liwork: liwork LapackLibrary>>tgexcWithwantq: wantq wantz: wantz n: n a: a lda: lda b: b ldb: ldb q: q ldq: ldq z: z ldz: ldz ifst: ifst ilst: ilst work: work lwork: lwork in http://www.squeaksource.com/Smallapack/Smallapack-External-nice.16.mcz pre-requisite is FFI and hack in http://www.squeaksource.com/Smallapack/Compiler-nice.147.mcz in order to compile methods with more than 15 arguments... Nicolas >> >> Sometimes, it gets a bit tricky to initialize Smallapack. >> I did something like: >> >> LapackMatrix initialize. >> LapackMatrix allSubclasses do: [:e | [e initializeClassInstVars] ifError: >> []]. >> >> Nicolas >> >> > Then the latest Smallapack code is at >> > http://www.squeaksource.com/Smallapack.html >> > >> > If you are on linux, you'd better use a relatively new VM correcting >> > http://bugs.squeak.org/view.php?id=3929 >> > >> > Nicolas >> > >> > >> > 2010/6/21 arul selvan <arul.selvan(a)gmail.com>: >> >> nicolas, >> >> >> >> i will be interested to test if a port for squeak is available >> >> >> >> arul >> >> >> >> >> >> On Mon, Jun 21, 2010 at 12:41 PM, Nicolas Cellier >> >> <nicolas.cellier.aka.nice(a)gmail.com> wrote: >> >>> I started Smallapack for this purpose. >> >>> Smallapack interfaces BLAS+LAPACK thru FFI. >> >>> Very much like numpy... >> >>> >> >>> Smallapack works quite well in VW and Dolphin... >> >>> (In fact it did work very well since 1990 with st80 user >> >>> primitives...) >> >>> ...Unfirtunately not so in Squeak (VM crach possibly). >> >>> >> >>> I'd like to put more time in it, but so far there has not been so much >> >>> interest. >> >>> >> >>> Nicolas >> >>> >> >>> 2010/6/21 Jimmie Houchin <jdev(a)cyberhaus.us>: >> >>>> On 6/20/2010 10:41 AM, Lawson English wrote: >> >>>>> >> >>>>> On 6/20/10 6:08 AM, Nicolas Cellier wrote: >> >>>>>> >> >>>>>> 2010/6/20 Michael Haupt<mhaupt(a)gmail.com>: >> >>>>>>> >> >>>>>>> Hi Nicolas, >> >>>>>>> >> >>>>>>> On Sun, Jun 20, 2010 at 11:17 AM, Nicolas Cellier >> >>>>>>> <nicolas.cellier.aka.nice(a)gmail.com> wrote: >> >>>>>>>> >> >>>>>>>> About 8) : True, every single operation results in memory >> >>>>>>>> allocation >> >>>>>>>> / garbage collection, a burden for number crunching. >> >>>>>>> >> >>>>>>> really? >> >>>>>>> >> >>>>>>> There is this nice book by Didier Besset called "Object-Oriented >> >>>>>>> Implementation of Numerical Methods. An Introduction with Java and >> >>>>>>> Smalltalk.: An Introduction with Java and Smalltalk". It can't be >> >>>>>>> *that* bad. :-) >> >>>>>> >> >>>>>> Agree, "not worse than Matlab" was the meaning of my message. >> >>>>>>>> >> >>>>>>>> My own answer was: use C/FORTRAN for optimized number crunching >> >>>>>>>> functions. Use Smalltalk for any higher level/GUI function (via >> >>>>>>>> DLLCC/FFI). We may have more than 1 hammer in your toolset! >> >>>>>>> >> >>>>>>> With GPU connectivity things emerging, number crunching might even >> >>>>>>> be >> >>>>>>> an interesting area for Smalltalk. >> >>>>>>> >> >>>>>>> Best, >> >>>>>>> Michael >> >>>>>> >> >>>>>> Yes, this falls in vectorizing the operations. >> >>>>>> But I would go for a GPU-BLAS implementation available to any >> >>>>>> language >> >>>>>> (Smalltalk and C as well). >> >>>>>> >> >>>>>> Nicolas >> >>>>> >> >>>>> How many parallel squeak processes would be required to = the speed >> >>>>> of one >> >>>>> native library for arbitrary precision math, or for other math >> >>>>> intensive >> >>>>> purposes? >> >>>>> >> >>>>> Lawson >> >>>> >> >>>> Hello, >> >>>> >> >>>> I would love to be using Squeak for my financial application. >> >>>> Numerical >> >>>> performance isn't currently what is stopping me. My problem is that I >> >>>> require interfacing with a Windows COM dll and in a future version >> >>>> with a >> >>>> Java library. Hopefully at some point I will be able to port to >> >>>> Squeak. I >> >>>> would much prefer it to using Python, which is what I am currently >> >>>> using. >> >>>> >> >>>> I didn't even know Squeak was in the running until I discovered the >> >>>> Matrix >> >>>> class. And for what I need to do it performs reasonably adequately. >> >>>> However >> >>>> Squeak does not to my knowledge have a comprehensive collection of >> >>>> mathematics methods to be able to be applied to a variety of data. >> >>>> Currently >> >>>> I am using Python and Numpy which has a nicely optimized >> >>>> Mathematics/Scientific set of functions using optimized C/Fortran >> >>>> libraries. >> >>>> I would love to see Squeak compete in this area. In fact the Numpy >> >>>> people >> >>>> are currently refactoring the library to turn it into a C library >> >>>> usable by >> >>>> other languages. >> >>>> >> >>>> Here is some samples from my experimentation. >> >>>> >> >>>> Some of what I am doing is doing rolling calculations over my >> >>>> dataset. >> >>>> >> >>>> dataset is one weeks worth of OHLC data of a currency pair. >> >>>> >> >>>> In Squeak I have. >> >>>> >> >>>> ttr := [ >> >>>> 1 to: ((m rowCount) -500) do: [:i || row rowSum rowMax rowMin >> >>>> rowMedian >> >>>> rowAverage | >> >>>> row := (m atRows: i to: (499+i) columns: 5 to: 5). >> >>>> rowSum := row sum. >> >>>> rowMax := row max. >> >>>> rowMin := row min. >> >>>> rowMedian := row median. >> >>>> rowAverage := row average. >> >>>> omd add: {rowSum . rowMax . rowMin . rowMedian . rowAverage}]] >> >>>> timeToRun. >> >>>> >> >>>> Squeak: 17 seconds, with Cog 4.2 seconds (nice work guys >> >>>> (Eliot/Teleplace) >> >>>> >> >>>> In Python/Numpy I have. >> >>>> >> >>>> import numpy as np >> >>>> def speedtest(array,omd): >> >>>> t1 = time.time() >> >>>> for i in range(0, (len(a)-500)): >> >>>> rowmax = np.max(a['bidclose'][i:i+500]) >> >>>> rowmin = np.min(a['bidclose'][i:i+500]) >> >>>> rowsum = np.sum(a['bidclose'][i:i+500]) >> >>>> rowmedian = np.median(a['bidclose'][i:i+500]) >> >>>> rowmean = np.mean(a['bidclose'][i:i+500]) >> >>>> omd.append((rowsum, rowmax, rowmin, rowmedian, rowmean)) >> >>>> return time.time()-t1 >> >>>> >> >>>> Python: .7 seconds >> >>>> >> >>>> Python/Numpy performs well, is reasonably nice to work with. But I >> >>>> would >> >>>> give up the performance to be able to use Squeak. The live >> >>>> environment and >> >>>> debugging would be invaluable for experimentation. >> >>>> >> >>>> Hopefully this will give you some idea. >> >>>> >> >>>> Jimmie >> >>>> >> >>>> >> >>> >> >>> >> >> >> >> >> > >> > > > > >

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JSON in SCouchDB
by Igor Stasenko 21 Jun '10

21 Jun '10

On 20 June 2010 19:27, Tim Felgentreff <tim(a)nada1.de> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Subclassing the Dictionary directly just didn't work on gnu smalltalk (for reasons have yet been unable to determine) - calling new on any subclass of Dictionary will throw an error. Oh.. i see. Bad luck. File the bug report to GNU St developers :) > > I once had similar problems subclassing other collection classes and was told by a Squeaker that it's "better" to delegate to collections instead of subclassing them in the domain anyway. If you don't agree, feel free to ignore the changes relating to JsonObject class and I will move them to the Gnu Smalltalk diff. > Not in case of JsonObject , because it is naturally a dictionary of key/value pairs, so there are a little need for delegation. So, by subclassing it, i eliminated an additional message sends for better performance as well as it gives a full Collection/Dictionary protocol available to operate with json objects. Originally, a JSON library was also used a delegation. I'd like to forward this exchange to squeak-dev list, lets hear what others thinking. I am also would like to see this stuff portable, without the need of external patches, even if it means some sacrifices (i hope not much) :) > On Jun 20, 2010, at 6:18 PM, Igor Stasenko wrote: > >> Tim, what is motivation to delegate json object to dictionary instead >> of subclassing it? >> >> On 20 June 2010 19:12, Igor Stasenko <siguctua(a)gmail.com> wrote: >>> Thank you. >>> I will review them carefully. >>> >>> On 20 June 2010 15:23, Tim Felgentreff <tim(a)nada1.de> wrote: >>>> Hi >>>> I'm attempting to port your JSON/SCouchDB code to Gnu Smalltalk. I'm using a separate git branch to keep track of the Gnu Smalltalk specific diffs, however, I though it would be a good idea to keep the Squeak codebase as portable as possible. I'm attaching a mcz with changes I did in Squeak which don't break the tests for either JSON or SCouchDB, but make it more portable for GST. >>>> I though I'd send them to you for review and possibly inclusion in the main repository on Squeaksource. >>>> >>>> Regards, >>>> Tim >>>> >>> >>> >>> >>> -- >>> Best regards, >>> Igor Stasenko AKA sig. >>> >> >> >> >> -- >> Best regards, >> Igor Stasenko AKA sig. > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (Darwin) > > iEYEARECAAYFAkweQW4ACgkQLbWJItnd6CxXkACgwA59l35Z2/KjO6JIWq/iRrp0 > Z0cAniAdefgAo27A9pie7j2il/tdAHij > =R55q > -----END PGP SIGNATURE----- > -- Best regards, Igor Stasenko AKA sig.

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The Trunk: MorphicExtras-cmm.88.mcz
by commits＠source.squeak.org 21 Jun '10

21 Jun '10

Chris Muller uploaded a new version of MorphicExtras to project The Trunk: http://source.squeak.org/trunk/MorphicExtras-cmm.88.mcz ==================== Summary ==================== Name: MorphicExtras-cmm.88 Author: cmm Time: 21 June 2010, 3:01:48.078 pm UUID: 5a1d954c-1d49-45ee-922a-39fb75b5fb81 Ancestors: MorphicExtras-bf.87 Protect from restoring color to nil when using PostscriptCanvas for the first time. =============== Diff against MorphicExtras-bf.87 =============== Item was changed: ----- Method: PostscriptCanvas>>setColor: (in category 'private') ----- setColor: color + (color notNil and: [ currentColor ~= color ]) ifTrue: + [ target write: color asColor. + currentColor := color ]! - currentColor ~= color ifTrue:[ - target write:color asColor. - currentColor := color. - ]. - !

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