Search Results

Search found 22336 results on 894 pages for 'software quality'.

Page 236/894 | < Previous Page | 232 233 234 235 236 237 238 239 240 241 242 243  | Next Page >

  • How to document and teach others "optimized beyond recognition" computationally intensive code?

    - by rwong
    Occasionally there is the 1% of code that is computationally intensive enough that needs the heaviest kind of low-level optimization. Examples are video processing, image processing, and all kinds of signal processing, in general. The goals are to document, and to teach the optimization techniques, so that the code does not become unmaintainable and prone to removal by newer developers. (*) (*) Notwithstanding the possibility that the particular optimization is completely useless in some unforeseeable future CPUs, such that the code will be deleted anyway. Considering that software offerings (commercial or open-source) retain their competitive advantage by having the fastest code and making use of the newest CPU architecture, software writers often need to tweak their code to make it run faster while getting the same output for a certain task, whlist tolerating a small amount of rounding errors. Typically, a software writer can keep many versions of a function as a documentation of each optimization / algorithm rewrite that takes place. How does one make these versions available for others to study their optimization techniques?

    Read the article

  • Python simulation-scripts architecture

    - by Beastcraft
    Situation: I've some scripts that simulate user-activity on desktop. Therefore I've defined a few cases (workflows) and implemented them in Python. I've also written some classes for interacting with the users' software (e.g. web browser etc.). Problem: I'm a total beginner in software design / architecture (coding isn't a problem). How could I structure what I described above? Providing a library which contains all the workflows as functions, or a separate class/module etc. for each workflow? I want to keep the the workflows simple. The complexity should be hidden in the classes for interacting with the users' software. Are there any papers / books I could read about this, or could you provide some tips? Kind regards, B

    Read the article

  • How can a programmer refine their skills in non-visual ways?

    - by Martin Josefsson
    I feel like when I am not writing, I am reading. When I come home from my programming job I write and read software and about software. The problem is though, both reading and writing requires my eyes to be focused. That doesn't work when I'm biking, cooking shopping for groceries. Sometime I use text-to-speech programs to listen to blogs, but I feel like there could be more. What ways can a software developer learn more without requiring eye focus? How to blind coders learn the craft?

    Read the article

  • Cannot upgrade from Maverick

    - by Tideland
    When I attempt to upgrade the Update manager shows a warning message stating "Your ubuntu release is no longer supported." Okay... Click "close" it never goes away. Locks-up the update manager and game over. Next, try to update the software sources but can't do that either since it launches from the System Administer Software Sources and guess what? Needs sudo... But like all good linux software I'm sure the program is buried in a folder somewhere waiting for me to find it through the all powerful terminal program. Already commented out all Maverick Sources by hand but that didn't do the trick. Now what?

    Read the article

  • Career Advice: masters degree or work experience [on hold]

    - by user95488
    I graduated about four years ago with a degree in mathematics and I currently work as a Software Developer/Business Analyst, but more Business Analyst. I've been working for about 4 years and and I am concerned with my long term career path. I would strongly prefer to do much more software development but to continue on my current path would lead me to an analyst role. I was thinking of getting a masters in computer science to help refocus my career toward core software development. Does anyone have any advice here? Is this a bad idea?

    Read the article

  • Oracle Forms hat Zukunft!

    - by A&C Redaktion
    Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 Diese frohe Botschaft für unsere bewährte Entwicklungsplattform Oracle Forms feiert der Oracle Gold Partner PITSS (professional it software & services) mit einer großen Roadshow in acht Städten. Von Hamburg bis Wien bieten PITSS und Oracle unter dem Titel „Oracle Forms von A bis Z“ Vorträge, Diskussion und Erfahrungsaustausch für alte und neue Forms Kunden. Jeweils von 9.30 Uhr bis 16.30 Uhr geht es unter anderem um A wie ADF oder APEX, B wie BPEL, E wie Erfahrungsaustausch, M wie Migration, W wie WebLogic Server und natürlich um Z wie Zukunft. Die Roadshow richtet sich an Software Developer, IT-Leiter, Software-Architekten und Projektleiter. Die Teilnahme ist kostenlos, unter dem jeweiligen Link können Sie sich für eine Station in Ihrer Nähe anmelden: 06.11. Hannover 07.11. Hamburg 08.11. Berlin/Potsdam 09.11. Düsseldorf 13.11. Dreieich 14.11. Stuttgart 15.11. München 29.11. Wien

    Read the article

  • Pidgin not present in 12.10 repositories, how do i get one?

    - by Ankit
    I want to install Pidgin on my 12.10 clean install system. When I go to the Software Center and try to install the client I get an error saying:- Not found There isn’t a software package called “pidgin” in your current software sources. Any ideas which repositories i need to import to get this done. ERROR:- Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/p/pidgin/pidgin-data_2.10.6-0ubuntu1_all.deb 404 Not Found [IP: 91.189.92.156 80] Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/p/pidgin/pidgin_2.10.6-0ubuntu1_amd64.deb 404 Not Found [IP: 91.189.92.156 80]

    Read the article

  • Error installing gPodder

    - by Ron Webb
    A few weeks ago (newbie alert!) I started using XUbuntu 12.04 with Xfce 4.8. I'm trying to install gPodder Podcast Client (see https://launchpad.net/~thp/+archive/gpodder). I've added the PPA via terminal commands as instructed. When I click the Install button in the Ubuntu Software Centre I get the following error: Package dependencies cannot be resolved This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time. Details: The following packages have unmet dependencies: gpodder: Depends: python-webkit but it is not going to be installed What do I need to do? Just to make thing more complicated -- I'm not sure, but before I found the launchpad.net link, I think I may have tried to install gPodder from the default Ubuntu repositories (also unsuccessfully). There may be remnants of the previous attempt still installed, which may be blocking the new install. Where/how can I find them?

    Read the article

  • Cannot install build essential from the CD?

    - by munir
    After a fresh installation of Ubuntu 10.10 I tried to install build-essential from the Ubuntu installation CD. I put the cd in the cdrom and in the software repositories i checked the box install from cd(Ubuntu 10.10 release Maverick Meerkat). Then I reloaded the software repositories. The synaptic manager then tried to download some repository related files but failed to do so as i didn't have internet connection. Then I open a terminal and wrote sudo apt-get install build-essential. It prompted me if I want to install build essential y/N. I typed y but the terminal showed some errors and was not installed. I also tried to add the CD in the software repositories. I clicked add and it prompted me to insert a CD while the CD was still inside the cdrom. I clicked "ok" then and it showed it could not find any cd. What is wrong?

    Read the article

  • Good Compression for Slow-mo Video

    - by marienbad
    What's the best way to deliver super slow-motion video to the browser? This seems to me to be a special case, because with super slow-mo video (such as 10,000 frames per second) the visual difference from frame to frame is minimal. As such, it's easy to compress highly. Please suggest codecs, as well as encoding software, backend software, software configuration tips, and services like youtube. My goal is to get about 100 frames of QVGA video to the browser in 500KB. By the way, remember that Radiohead In Rainbows site?

    Read the article

  • New Solaris Cluster!

    - by Jeff Victor
    We released Oracle Solaris Cluster 4.1 recently. OSC offers both High Availability (HA) and also Scalable Services capabilities. HA delivers automatic restart of software on the same cluster node and/or automatic failover from a failed node to a working cluster node. Software and support is available for both x86 and SPARC systems. The Scalable Services features manage multiple cluster nodes all providing a load-balanced service such as web servers or app serves. OSC 4.1 includes the ability to recover services from software failures, failure of hardware components such as DIMMs, CPUs, and I/O cards, a global file system, rolling upgrades, and much more. Oracle Availability Engineering posted a brief description and links to details. Or, you can just download it now!

    Read the article

  • How do open-source projects grow?

    - by dan_waterworth
    I know of lots of software that is open-source. For at least some of it, someone, somewhere must have written the first version alone. How does good open-source software become well known? I'm most interested in the first steps. How does software written by one person gain its first new contributors? I'm looking for practical advise. I've started a project here, called aodbm. What steps can I take to give it the best possible start?

    Read the article

  • How to balance programming projects between feasibility and usefulness

    - by tyjkenn
    I've become fairly competent as a programmer, but I would not say I am a master. I work independently, most as a hobby, although I have done some freelance PHP work. I tend to find myself dabbling in a lot of things: Java Android SDK, Arduino, game scripting, Lua, etc. I've reached the point where I want to start a real software project, but cannot think of a small enough project that allows me enough practice, while still being able to publish a decent piece of software in a reasonable amount of time, and build up a portfolio. More specifically, I was looking at Ubuntu development, in Python, using the Quickly toolset, which includes the PyGTK libraries. So the question is, what is the best way to come up with a small project that is still useful, as a starting point to a software development career?

    Read the article

  • Is there an opposite for the term "Backporting"?

    - by Avian00
    As I understand, the term "Backporting" is used to describe a fix which is applied in a future version which is also ported to a previous version. Wikipedia definition is as follows: Backporting is the action of taking a certain software modification (patch) and applying it to an older version of the software than it was initially created for. It forms part of the maintenance step in a software development process... For example: A problem is discovered and fixed in V2.0. The same fix is ported and applied to V1.5. What is the term when this is done in the opposite direction? The problem is discovered and fixed in V1.5. The same fix is ported and applied to V2.0. Would the term "Backporting" still apply? Or is there a term such as "Forwardporting" (which amusingly sounds a lot like "Port Forwarding")?

    Read the article

  • What does an interviewer notice most on my resume?

    - by Need4Sleep
    When applying for a position such as a software developer for a company, what does an interviewer notice most on my resume concerning the work i have done? Is he/she concerned with the amount of work i do with others(Open source projects), The specific accomplishments I've made in my field(programs, apps) or the amount of time i spend helping others(forums, mentoring)? For those of you who have applied and work/worked in a position similar to a software developer,In your personal experience, what do you think helped you the most in landing the job? P.s. if 'software developer' is to broad a term, i would specifically enjoy working with teams to create large applications such as dropbox / google / skype etc...

    Read the article

  • mayavi2 installing has problem (ubuntu 12.04)

    - by user98865
    I'm using ubuntu 12.04 and python 2.7.3-0ubuntu2 is already installed. I have a problem during installing mayavi2 from ubuntu software center. Error message is : Package dependencies cannot be resolved This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time. Details: The following packages have unmet dependencies mayavi2: Depends: python-numpy (= 1:1.6.1) but 1:1.6.1-6ubuntu1 is to be installed Depends: python-numpy-abi9 but it is a virtual package Depends: python (< 2.8) but 2.7.3-0ubuntu2 is to be installed Depends: python-vtk (= 5.4.2-5) but 5.8.0-5 is to be installed I've searched to solve this problem for a long time but I didn't solve yet. What can I do?

    Read the article

  • Where is the best place to start projects and attract developers?

    - by user49557
    I want to develop software for Linux or cross-platform. I want to work with other open-source and non-profit developers. I want a place where Ubuntu or other developers come to start open-source or commercial projects, and we can join the projects or start our own projects. I know there are social coding sites, but where can I start the project, and invite people or let people join? Then we can submit software to sourceforge.net. I know we can start projects at sourceforge.net, but is there anything more dedicated for Ubuntu developers, especially for Ubuntu and for the Ubuntu Software Center? Would you recommend Launchpad, sourceforge.net, github, gitorous or others?

    Read the article

  • How to share my usb modem's internet connection in ubuntu12.04?

    - by Nandlal
    I am using ubuntu 12.04 on my notebook and my primary internet connection is reliance netconnect. I want to share it on my android smartphone, but have no idea about sharing usb modem on linux. I was able to share the same on wondows 7 using the software provided by the notebook manufacturer. Again it's my bad luck that the manufacturer(Samsung) does not provides any driver or software for notebook for linux os they only provide it for windows os, but still some of the features work same as on windows without any driver or software. Please help me.

    Read the article

  • Tilgin Improves Subscriber Device Management with Embedded MySQL

    - by Bertrand Matthelié
    Tilgin IPRG AB develops and delivers systems and software for the digitally-connected home. Using Tilgin home gateway software, as well as central software for remote control and operation of the network, Tilgin’s customers can offer their subscribers broadband services. The company has over 100 customers,  telecommunications and broadband operators, in more than 30 countries.Tilgin needed a robust and scalable database solution for its auto-configuration server (ACS) product, tGem, used by its customers to manage the devices that provide their subscribers with access to television, internet, telephony, and other services. Tilgin chose MySQL as embedded database. This made it possible for Tilgin’s customers to easily and smoothly implement new generations of services, as well as to easily add new subscribers, ultimately enabling the company to save time and money. Read the case study here.

    Read the article

  • Create a HotSpot which requires a username and password

    - by Trumbun
    I wish to set up a wireless access point which requires a username and password in order for clients to use the internet. The network setup will be internet modem connected to an Ubuntu Server (2 networks cards). The first network cards to get the internet to the server and the second network card to connect the the wifi hotspot. The server will host the software such as (Example software for windows) which will control the user connected by forcing them to login with the credentials given at the reception. Can some suggest some software that I can use? Thanks in advance

    Read the article

  • Automating the choice between JPEG and PNG with a script

    - by MHC
    Choosing the right format to save your images in is crucial for preserving image quality and reducing artifacts. Different formats follow different compression methods and come with their own set of advantages and disadvantages. JPG, for instance is suited for real life photographs that are rich in color gradients. The lossless PNG, on the other hand, is far superior when it comes to schematic figures: Picking the right format can be a chore when working with a large number of files. That's why I would love to find a way to automate it. A little bit of background on my particular use case: I am working on a number of handouts for a series of lectures at my unversity. The handouts are rich in figures, which I have to extract from PDF-formatted slides. Extracting these images gives me lossless PNGs, which are needlessly large at times. Converting these particular files to JPEG can reduce their size to up to less than 20% of their original file size, while maintaining the same quality. This is important as working with hundreds of large images in word processors is pretty crash-prone. Batch converting all extracted PNGs to JPEGs is not an option I am willing to follow, as many if not most images are better suited to be formatted as PNGs. Converting these would result in insignificant size reductions and sometimes even increases in filesize - that's at least what my test runs showed. What we can take from this is that file size after compression can serve as an indicator on what format is suited best for a particular image. It's not a particularly accurate predictor, but works well enough. So why not use it in form of a script: I included inotifywait because I would prefer for the script be executed automatically as soon as I drag an extracted image into a folder. This is a simpler version of the script that I've been using for the last couple of weeks: #!/bin/bash inotifywait -m --format "%w%f" --exclude '.jpg' -r -e create -e moved_to --fromfile '/home/MHC/.scripts/Workflow/Conversion/include_inotifywait' | while read file; do mogrify -format jpg -quality 92 "$file" done The advanced version of the script would have to be able to handle spaces in file names and directory names preserve the original file names flatten PNG images if an alpha value is set compare the file size between the temporary converted image and its original determine if the difference is greater than a given precentage act accordingly The actual conversion could be done with imagemagick tools: convert -quality 92 -flatten -background white file.png file.jpg Unfortunately, my bash skills aren't even close to advanced enough to convert the scheme above into an actual script, but I am sure many of you can. My reputation points on here are pretty low, but I will gladly award the most helpful answer with the highest bounty I can set. References: http://www.formortals.com/introducing-cnb-imageguide/, http://www.turnkeylinux.org/blog/png-vs-jpg Edit: Also see my comments below for some more information on why I think this script would be the best solution to the problem I am facing.

    Read the article

  • Need to Connect 2 HDMI between Onboard and Add-In GPUs - What's the consequences?

    - by jmalais
    If i plug a second hdmi cable into my onboard video output (my dedicated add-in only has one hdmi port) will it use my video card or the onboard for that display? Also, what is the difference in quality between HDMI and DVI? I do have a DVI to HDMI adapter and cable that I could use alternatively if the above is not in my best interest. This is a gaming related question as I will be gaming off the two displays, hopefully in the highest of quality.

    Read the article

  • How to increase video resolution

    - by user23950
    I have this 356MB .rmvb file that I converted to .avi and it became 2Gb. But the size is still the same, and the quality still sucks. Is there any tool that could increase the resolution and quality of this video so that it would fit with my monitor.

    Read the article

  • DVD playback with Windows Media Player 11 works fine, but when copied to HDD and then played back, t

    - by stakx
    I have several DVDs with short documentaries on it. Since the notebook I'm using (a Dell Latitude E6400) has only one DVD drive, and I might play back those short movies very often, I thought of copying them to the HDD and playing them back from there. However, I've run into a problem, namely stuttering audio. Problem description: When I play back these movies directly from DVD (with Windows Media Player 11 under Windows Vista), everything works fine. Smooth video, no significant audio problems (only the occasional click). But as soon as I copy any of these DVDs to the HDD and try to play them back from there (e.g. using the wmpdvd://drive/title/chapter?contentdir=path protocol, I get stuttering audio — audio playback sounds like a machine gun for a third of a second or so, approx. every 8 seconds. I have tried converting the VOB files from the DVD to another format (ie. ripping), but that resulted in a noticeable downgrade of picture quality. Therefore I thought it best to keep the files in their original format, if possible. Still, I suspect that the stuttering audio is due to some (de-)muxing problem, and that changing the file format might help. (After all, video playback is fine; therefore I don't think that the hardware is too slow for playback.) Only thing is, I don't know how to convert the VOB files to another Windows Media Player-compatible format without quality loss. I hope someone can help me, or give me further pointers on things I could try out to get HDD playback to work without the problem described. Some things I've tried so far, without any success: VOB2MPG, in order to convert the .vob file to a .mpg file. But that changes only the A/V container, not the content. No re-encoding takes place at all. Re-encoding with MPlayer/MEncoder. Lots of quality loss there, and I frankly haven't got the time to test all possible settings combinations available. Disabling all plug-ins, equalizers, etc. in Windows Media Player. Disabling all hardware acceleration on the audio playback device. Further info on the VOB files I'm trying to playback: The video format is MPEG ES, PAL 720x576 pixels @ 24/25 frames per second. The sound stream is uncompressed PCM, 16-bit stereo @ 48kHz. (Might it help if I somehow re-encoded the sound stream at a lower resolution, or as an MP3? If so, how would I do this without changing the video stream?) P.S.: I am limited to using Windows Media Player (11). (I previously tried MPlayer btw., but the video playback quality was surprisingly bad.)

    Read the article

  • How can I compress a movie to a specific file size in Windows 7's Live Movie Maker?

    - by Nathan Fellman
    In previous versions of Windows Movie Maker I could take a raw video file and specify the file size to compress it to, and Movie Maker would compress it accordingly (with the appropriate loss in quality). Live Movie Maker, which comes with Windows 7, doesn't seem to have this option. I can only set specify the requested quality. Is there any way to specify the size of the target file for Windows Live Movie Maker?

    Read the article

< Previous Page | 232 233 234 235 236 237 238 239 240 241 242 243  | Next Page >