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  • In what (small) ways can I modify Octave's compile options to enhance it without breaking it?

    - by irrational John
    If the title to this question seems a bit vague, I am sorry. But I wasn't sure how to distill what I am attempting to do into a single sentence. A few weeks back I learned that I could build and install recent releases of Octave on an Ubuntu 12.04 system by following the steps below. Install the tools needed to compile, link, and run octave. For Ubuntu the commands below have worked for me. sudo apt-get build-dep octave3.2 sudo apt-get install build-essential gnuplot gtk2-engines-pixbuf sudo apt-get install libfontconfig-dev bison Next, download the source code for an Octave release from the Gnu Project Archives for Octave and unpack the archive into a folder on your system. Use the commands below to build, check, and install octave. ./configure make make check sudo make install Unfortunately it turns out that the above builds an Octave that contains all the debugging symbol tables. The object files alone are huge taking up around 1.7 GB. The current Octave documentation suggests To compile without debugging symbols try the command make CFLAGS=-O CXXFLAGS=-O LDFLAGS= instead of just make. However, when I tried this it did not work. The -g option was still used for the compiles. For the heck of it I instead tried ./configure CFLAGS=-O CXXFLAGS=-O and this did work. (Instead of ~1.7GB the result of the build now takes up around 253MB). My questions are Is this actually the correct (recommended?) method to use to compile Octave without debugging symbols (i.e. without -g)? How would I compile Octave so it uses x86_64 rather than x86? Note: I am not asking how to compile Octave to use the (experimental) 64-bit integers for array dimensions. I just want to allow the compiler to use the extra registers and word sizes available when an app runs in 64-bit mode. Is a (more) complete list available for the directives used with the Octave Makefile? I have only seen make, make check, and make install documented. But apparently make distclean is also allowed. (It removes the compilation results so you can do a complete rebuild of everything.) I'm wondering what else might be available. FWIW, I have tried using ./configure CFLAGS="-O3 -mtune=core2 -m64" CXXFLAGS="-O3 -mtune=core2 -m64" and, surprisingly, it not only appeared to build, but also ran and passed the make check tests. The ./configure script even gave me the (deceptively?) reassuring message "Octave is now configured for x86_64-unknown-linux-gnu". But of course that's not the same thing as saying it actually "works". Is there a recommended way to enable Octave to run as an x86_64 app? I have also tried looking inside the Octave Makefile to see if I could decipher what command line directives it accepts. I got nowhere. I have not a single clue as to how that Makefile does whatever it is that it does.

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  • How can I build the Boost.Python example on Ubuntu 9.10?

    - by Gatlin
    I am using Ubuntu 9.10 beta, whose repositories contain boost 1.38. I would like to build the hello-world example. I followed the instructions here (http://www.boost.org/doc/libs/1%5F40%5F0/libs/python/doc/tutorial/doc/html/python/hello.html), found the example project, and issued the "bjam" command. I have installed bjam and boost-build. I get the following output: Jamroot:18: in modules.load rule python-extension unknown in module Jamfile</usr/share/doc/libboost1.38-doc/examples/libs/python/example>. /usr/share/boost-build/build/project.jam:312: in load-jamfile /usr/share/boost-build/build/project.jam:68: in load /usr/share/boost-build/build/project.jam:170: in project.find /usr/share/boost-build/build-system.jam:248: in load /usr/share/boost-build/kernel/modules.jam:261: in import /usr/share/boost-build/kernel/bootstrap.jam:132: in boost-build /usr/share/doc/libboost1.38-doc/examples/libs/python/example/boost-build.jam:7: in module scope I do not know enough about Boost (this is an exploratory exercise for myself) to understand why the python-extension macro in the included Jamroot is not valid. I am running this example from the install directory, so I have not altered the Jamroot's use-project setting. As a side question, if I were to just willy-nilly start a project in an arbitrary directory, how would I write my jamroot?

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  • Customizing the TFS 2008 build sequence to avoid compilation and deploy SSRS

    - by Andrew
    I'm trying to create a CI process for SQL Server Reporting Services. I am fairly new to TFS but quite experienced with MSBuild. In the past I've used a combination of MSBuild with Team City so the whole build process is more or less custom. Here lies the start of my problems, as the solution I am deploying only contains Report Server projects (rds), no compilation is required. I thought that I would override the the first default task that TFS runs (EndToEndIteration) to override the default TFS build sequence and inject my own. The first snag that I have come across is that the build always fails, how can I set the status of the build to success? Currently the EndToEndIteration task is very light and only has a message. Is this the best method to create a custom build process in TFS where compilation is not required? Or should I use the default sequence and override one of the hook tasks mentioned in http://msdn.microsoft.com/en-us/library/aa337604%28VS.80%29.aspx (ie: AfterCompile) The core steps that I'd like to achieve are: Bundle the RDL and datasource files Connect to the host server to register/deploy the reports Re-apply any subscriptions that previously existed Run tests to verify the deployment succeeded and is returning results as expected I have found another article on Report services deployment: http://stackoverflow.com/questions/88710/reporting-services-deployment But it doesn't mention the best practice for customizing the standard build process. Any help would be appreciated.

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  • SQL Server CTE referred in self joins slow

    - by Kharlos Dominguez
    Hello, I have written a table-valued UDF that starts by a CTE to return a subset of the rows from a large table. There are several joins in the CTE. A couple of inner and one left join to other tables, which don't contain a lot of rows. The CTE has a where clause that returns the rows within a date range, in order to return only the rows needed. I'm then referencing this CTE in 4 self left joins, in order to build subtotals using different criterias. The query is quite complex but here is a simplified pseudo-version of it WITH DataCTE as ( SELECT [columns] FROM table INNER JOIN table2 ON [...] INNER JOIN table3 ON [...] LEFT JOIN table3 ON [...] ) SELECT [aggregates_columns of each subset] FROM DataCTE Main LEFT JOIN DataCTE BananasSubset ON [...] AND Product = 'Bananas' AND Quality = 100 LEFT JOIN DataCTE DamagedBananasSubset ON [...] AND Product = 'Bananas' AND Quality < 20 LEFT JOIN DataCTE MangosSubset ON [...] GROUP BY [ I have the feeling that SQL Server gets confused and calls the CTE for each self join, which seems confirmed by looking at the execution plan, although I confess not being an expert at reading those. I would have assumed SQL Server to be smart enough to only perform the data retrieval from the CTE only once, rather than do it several times. I have tried the same approach but rather than using a CTE to get the subset of the data, I used the same select query as in the CTE, but made it output to a temp table instead. The version referring the CTE version takes 40 seconds. The version referring the temp table takes between 1 and 2 seconds. Why isn't SQL Server smart enough to keep the CTE results in memory? I like CTEs, especially in this case as my UDF is a table-valued one, so it allowed me to keep everything in a single statement. To use a temp table, I would need to write a multi-statement table valued UDF, which I find a slightly less elegant solution. Did some of you had this kind of performance issues with CTE, and if so, how did you get them sorted? Thanks, Kharlos

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  • XSLT: How to remove the self-closed elment

    - by Daoming Yang
    I have a large xml file which contents a lot of self-closed tags. How could remove all them by using XSLT. eg. <?xml version="1.0" encoding="utf-8" ?> <Persons> <Person> <Name>user1</Name> <Tel /> <Mobile>123</Mobile> </Person> <Person> <Name>user2</Name> <Tel>456</Tel> <Mobile /> </Person> <Person> <Name /> <Tel>123</Tel> <Mobile /> </Person> <Person> <Name>user4</Name> <Tel /> <Mobile /> </Person> </Persons> I'm expecting the result: <?xml version="1.0" encoding="utf-8" ?> <Persons> <Person> <Name>user1</Name> <Mobile>123</Mobile> </Person> <Person> <Name>user2</Name> <Tel>456</Tel> </Person> <Person> <Tel>123</Tel> </Person> <Person> <Name>user4</Name> </Person> </Persons> Note: there are thousands of different elements, how can I programmatically remove all the self-closed tags. Another question is how to remove the empty element such as <name></name> as well. Can anyone help me on this? Many thanks.

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  • Self Authenticating Links in Django

    - by awolf
    In my web app I would like to be able to email self-authenticating links to users. These links will contain a unique token (uuid). When they click the link the token being present in the query string will be enough to authenticate them and they won't have to enter their username and password. What's the best way to do this?

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  • Java / Android self naming

    - by ngreenwood6
    I am about to start developing an Android application and had a question if in Java there self naming. For instance say I had a variable named dog that held the value of scruffy. Could I then create a variable named scruffy from that variable. In PHP it would be $$dog. That would make a variable with the name scruffy. If this is possible please provide example

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  • Pyqt - QMenu dynamically populated and clicked

    - by mleep
    I need to be able to know what item I've clicked in a dynamically generated menu system. I only want to know what I've clicked on, even if it's simply a string representation. def populateShotInfoMenus(self): self.menuFilms = QMenu() films = self.getList() for film in films: menuItem_Film = self.menuFilms.addAction(film) self.connect(menuItem_Film, SIGNAL('triggered()'), self.onFilmSet) self.menuFilms.addAction(menuItem_Film) def onFilmRightClick(self, value): self.menuFilms.exec_(self.group1_inputFilm.mapToGlobal(value)) def onFilmSet(self, value): print 'Menu Clicked ', value

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  • PyGTK: Radiobuttons are still displayed after removal

    - by canavanin
    Hi everyone! I am using PyGTK and the gtk.assistant. On one page I would like to display two radiobuttons in case the user selected a certain option on a previous page. The labels of the buttons - and whether the buttons are to be present at all - are to depend entirely on that earlier selection. Furthermore, if the user goes back and changes that selection, the page containing the radiobuttons is to be updated accordingly. I have got as far as having the radiobuttons displayed when necessary, and with the correct labels. The trouble is that if I go back and change the determining selection, or if I move one page further than the 'radiobutton page' and then move back, the buttons are not only not removed (in case that would have been required), their number has also doubled. To show you what I'm doing, here's part of my code (I've left out bits that do unrelated things, that's why the function name doesn't fit). The function is called when the "prepare" signal is emitted prior to construction of the 'radiobutten page'. def make_class_skills_treestore(self): print self.trained_by_default_hbox.get_children() # PRINT 1 for child in self.trained_by_default_hbox.get_children(): if type(child) == gtk.RadioButton: self.trained_by_default_hbox.remove(child) #child.destroy() # <-- removed the labels, but not the buttons print self.trained_by_default_hbox.get_children() # PRINT 2 class_skills = self.data.data['classes'][selected_class].class_skills.values() default_trained_count = (class_skills.count([True, True]) , class_skills.count([True, False])) num_default_trained_skills = default_trained_count[1] / 2 # you have to pick one of a pair --> don't # count each as trained by default for i in range(default_trained_count[0]): # those are trained by default --> no choice num_default_trained_skills +=1 selected_class = self.get_classes_key_from_class_selection() if default_trained_count[1]: for skill in self.data.data['classes'][selected_class].class_skills.keys(): if self.data.data['classes'][selected_class].class_skills[skill] == [ True, False ] and not self.default_radio: self.default_radio.append(gtk.RadioButton(group=None, label=skill)) elif self.data.data['classes'][selected_class].class_skills[skill] == [ True, False ] and self.default_radio: self.default_radio.append(gtk.RadioButton(group=self.default_radio[0], label=skill)) if self.default_radio: for radio in self.default_radio: self.trained_by_default_hbox.add(radio) self.trained_by_default_hbox.show_all() self.trained_by_default_hbox and self.trained_by_default_label, as well as self.default_radio stem from the above function's class. I have two print statements (PRINT 1 and PRINT 2) in there for debugging. Here's what they give me: PRINT 1: [<gtk.Label object at 0x8fc4c84 (GtkLabel at 0x90a2f20)>, <gtk.RadioButton object at 0x8fc4d4c (GtkRadioButton at 0x90e4018)>, <gtk.RadioButton object at 0x8fc4cac (GtkRadioButton at 0x90ceec0)>] PRINT 2: [<gtk.Label object at 0x8fc4c84 (GtkLabel at 0x90a2f20)>] So the buttons have indeed been removed, yet they still show up on the page. I know the code requires some refactoring, but first I'd like to get it to work at all... If someone could help me out that would be great! Thanks a lot in advance for your replies - any kind of help is highly appreciated.

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  • Is "self" necessary?

    - by Rob
    Is using "self" ever necessary in Objective-C or maybe just a good practice? I have gone from using it all the time to not using it at all and I don't seem to really notice any difference. Isn't it just implied anyway?

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  • SQL SERVER 2005 Self Joins output

    - by user301751
    HI I am looking for some help I just can't seem to get my head how self joins work. I have this sql code select Persno'Name',convert(char(20), A_Date , 13)'Logins',acode from atrail as LOGIN where acode = 'LOGIN' OR acode = 'LOGOUT' order by a_date desc Which produces a list of User names and when the have logged in and out. What I am trying to acheive is to get anther column with the LOGOUT date next to the date they logged in date so that it is easyer to see when they logged in and out. Thanks Andy

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  • Self Update in .net programs?

    - by Rev
    Hi, I`m looking for best mechanism for self update in .net programs! solution should cover this subject: 1) Server - Client Program 2) When new update released, after installing that on the sever-program, all client-program must update itself base on server version.(no need automatic-update for server) 3) Full-Update : for example if server on version 3 and last update package version is 5, update package must contain any older package.

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  • JavaScript Self Executing Functions - What's the Difference?

    - by modernzombie
    I am very familiar with self executing functions from working with jQuery. (function($) { /* do stuff */ })(jQuery); Today I was reading the backbone.js source and noticed that they do this: (function() { /* do stuff */ }).call(this); Is this achieving the same thing? Would the following 2 lines of code do the same thing? (function($) { /* do stuff */ })(jQuery); (function($) { /* do stuff */ }).call(jQuery);

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  • Why should I call self=[super init]

    - by Michael
    Let's say I create my class and its init method. Why should I call and return value of superclass init assigned to self? Which cases it covers? I would appreciate examples why would I need it for Cocoa superclass and non-Cocoa.

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  • TeamCity Scheduled Build not getting all files from VSS

    - by Kate
    Within TeamCity if I trigger a build it all works correctly, however if the Scheduler triggers a build it does not seem to get all the files from VSS. I have clean checkout directory turned on, so I am not sure how it determines the patch for the VSS root. Does anyone have any suggestions on how I can get it to always get all files, and create a new patch each time? I have put the start of two build logs below, as you can see the first one has the correct 249mb, whereas the second only transfers 2MB. The files it doesn't get from VSS seem sporadic and not in relation to what has changed. Manual Trigger [23:57:49]: Checking for changes [00:09:04]: Clean build enabled: removing old files from C:\Builds\Ab 2.0 [00:09:04]: Clearing temporary directory: C:\TeamCity\buildAgent\temp\buildTmp [00:09:05]: Checkout directory: C:\Builds\Ab 2.0 [00:09:05]: Updating sources: server side checkout... (24m:53s) [00:09:05]: [Updating sources: server side checkout...] Will perform clean checkout [00:09:05]: [Updating sources: server side checkout...] Clean checkout reasons [00:09:05]: [Clean checkout reasons] Checkout directory is empty or doesn't exist [00:09:05]: [Clean checkout reasons] "Clean all files before build" turned on [00:09:05]: [Updating sources: server side checkout...] Transferring cached clean patch for VCS root: Ab 2.0 [00:09:42]: [Updating sources: server side checkout...] Building incremental patch over the cached patch [00:31:50]: [Updating sources: server side checkout...] Transferring repository sources: 124.0Mb so far... [00:32:18]: [Updating sources: server side checkout...] Repository sources transferred: 249.46Mb total [00:32:18]: [Updating sources: server side checkout...] Average transfer speed: 183.40Kb per second Triggered by the Scheduler [07:45:01]: Checking for changes [07:55:09]: Clean build enabled: removing old files from C:\Builds\Ab 2.0 [07:55:22]: Clearing temporary directory: C:\TeamCity\buildAgent\temp\buildTmp [07:55:22]: Checkout directory: C:\Builds\Ab 2.0 [07:55:22]: Updating sources: server side checkout... (24m:24s) [07:55:22]: [Updating sources: server side checkout...] Will perform clean checkout [07:55:22]: [Updating sources: server side checkout...] Clean checkout reasons [07:55:22]: [Clean checkout reasons] Checkout directory is empty or doesn't exist [07:55:22]: [Clean checkout reasons] "Clean all files before build" turned on [07:55:22]: [Updating sources: server side checkout...] Building clean patch for VCS root: Ab 2.0 [08:19:46]: [Updating sources: server side checkout...] Transferring cached clean patch for VCS root: Ab 2.0 [08:19:47]: [Updating sources: server side checkout...] Repository sources transferred: 2.01Mb total

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  • Rails: Passing new child object placeholder (build) to parent view

    - by Meltemi
    I've got 2 classes of objects... Magician has_many Rabbits and Rabbit belongs_to Magician. When viewing a Magician (show.html) I'd like to list all the associated Rabbits and then have some blank fields with a submit button to add a new Rabbit. To do so I build a new rabbit (associated to the current magician) in the Magician's show method (below). Edit2: found way to make it work but not sure if it's the "Rails way"? see comments inline (below): If I build the rabbit in Magician's show method then when show is rendered an empty (and invalid) rabbit ends the list before the new rabbit form fields are then shown. If I build it in the view itself then everything works & renders correctly. I was led to believe that we should not be doing this type of stuff in the view...if so, what's the proper way to address this? #/app/controllers/magicians_controller.rb class MagiciansController < ApplicationController respond_to :html, :json def show @magician = Magician.find(params[:id]) @rabbit = @magician.rabbits.build # <=== build here and empty rabbit gets # included in @magician.rabbits when they're rendered... # but is NOT included in @magician.rabbits.count for some reason?!?!? respond_with(@magician) end ... end #view/magicians/show.html.haml %p %b Name: = @magician.name %h2 Rabbits = "There are #{pluralize(@magician.rabbits.count, "rabbit")}" = render @magician.rabbits, :target => @magician %h2 Add a rabbit: - @rabbit = @clown.rabbits.build -# <=== build here and everything SEEMS to work = render :partial =>"rabbits/form", :locals => { :parent => @magician, :foreign_key => :magician_id, :flash => flash } Edit1: Adding generated html from partial as per request: <p> <b>Rabbit:</b> <b>Color:</b> | <b>ID:</b> <a href="/magicians/2/rabbits" data-confirm="Sure? A bunny will die" data-method="delete" rel="nofollow">Kill Rabbit</a> </p> And I suppose you probably want to see the partial that generates this: %p %b Rabbit: = rabbit.name %b Color: = rabbit.color | %b ID: = rabbit.id = link_to("Kill Rabbit", [target, rabbit], :method => :delete, :confirm => "Sure? A bunny will die")

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  • Best CPUs for speeding up compiling times of C++ w/ DistGCC

    - by Jay
    I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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  • Best CPUs for speeding up compiling times of C++ w/ DistGCC

    - by Jay
    I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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  • Best CPUs for speeding up compiling times of C++ w/ DistGCC

    - by Jay
    I'm putting together a distributed build farm with DistGCC to speed up our teams compile times and just looking for thoughts on which processors to use in the hosts. Are we going to get a noticeable decrease in time using 8 cores vs. 4-hyperthreaded cores? Big difference in time between i7 and Xeon? etc, etc. Just need advice from people who've put together kick-a build clusters. We've got a majority of the normal things to speed up builds in place (pre-compiled headers, ccache, local gigabit connections between them, tons of ram, etc) so please just give advice on the best processor to use. And money is a factor, but anythings doable if the performance increase is noticeable. Thanks. Jay EDIT: Although any advice IS welcome, please refrain from "Do this first" posts as we're not planning on skimping on things like SSD, maxed out RAM, etc. My personal system is a iMac Quad-core i5 with 8GB of RAM. When I build our project locally, my processor floats around 99-100% a majority of the time, which makes me assume it is a bottleneck, even if you made everything else faster. My ram on the other hand doesn't even get close to maxing out. It's also worth noting that I did research this, however every discussion I could find was primarily for gaming machines, which is obviously a different beast in usage. These machines won't even have monitors or anything but integrated graphics since they have one purpose: Build freakin fast. (hopefully)

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  • computer build for extreme tabbed browsing

    - by David Berger
    I'm interested in building or buying a task-specific computer for my brother. His requirements are ridiculously simple: the machine has to be able to wait in hundreds of web-based virtual waiting rooms at once and not crash. To be competitive, he needs to be able to enter the waiting rooms an dauto-refresh them faster. My question is, what priority do I give the different specs? My initial surmise is this: Connection speed (nothing to do with my build, but I kind of think this will be more beneficial than anything I build for him) Memory size -- I don't usually see firefox taking up more than a gig, even when heavily tabbed, but I think one gig for the operating system and two gigs for the browser are necessary. Processor speed -- I think the processor will affect performance, but even something out of date will do what he needs Memory speed/RAM bus -- I doubt this will matter much, but it seems just on this side of irrelevant. Everything else is a non-issue for him. Does this seem to stack up correctly? Also, since he's looking to stay on the cheaper side, and I might end up recommending a refurb to him, is there anything particularly egregious that Vista would do if it came pre-installed? If I build it myself, I'll give him linux, but if I have it shipped to him, I'm not sure I could walk him through the install process for linux, but I probably could walk him through the process to upgrade to Windows 7, if it were somehow worth it.

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