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  • Can computer clusters be used for general everyday applications?

    - by Matt Pascoe
    Does anyone know how a computer cluster can be used for everyday applications, like for example video games? I would like to build a computer cluster that can run applications over the cluster that were not specifically designed for computer clusters and still see the performance increase. One use would be for video games, but I would also like to utilize the increased computing power for running a large network of virtualized machines.

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  • What is better for a student programming in C++ to learn for writing GUI: C# vs QT?

    - by flashnik
    I'm a teacher(instructor) of CS in the university. The course is based on Cormen and Knuth and students program algorithms in C++. But sometimes it is good to show how an algorithm works or just a result of task through GUI. Also in my opinion it's very imporant to be able to write full programs. They will have courses concerning GUI but a three years, later, in fact, before graduatuion. I think that they should be able to write simple GUI applications earlier. So I want to teach them it. How do you think, what is more useful for them to learn: programming GUI with QT or writing GUI in C# and calling unmanaged C++ library? Update. For developing C++ applications students use MS Visual studio, so C# is already installed. But QT AFAIK also can be integrated into VS. I have following pros of C# (some were suggested there in answers): The need to make an additional layer. It's more work, but it forces you explicitly specify contract between GUI and processing data. The border between GUI and algorithms becomes very clear. It's more popular among employers. At least, in Russia where we live. It's rather common to write performance-critical algorithms in C++ and PInvoke them from well-looking C# application/ASP.Net website. Maybe it is not so widespread in the rest of the world but in Russia Windows is very popular, especially in companies and corporations due to some reasons, so most of b2b applications are Windows applications. Rapid development. It's much quicker to code in .Net then in C++ due to many reasons. And the con is that it's a new language with own specific for students. And the mess with invoking calls to library.

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  • Windows computer account appears to reset its own password, why?

    - by David Yu
    Has anyone seen this where a computer account appears to reset its password? The password for user 'WEST\SQLCLUSTER$' was reset by 'WEST\SQLCLUSTER$' on 'DOMAINCONTROLLER.WEST.company.corp' at '04/23/10 20:47:41' Event Type: Success Audit Event Source: Security Event Category: Account Management Event ID: 628 Date: Friday, April 23, 2010 Time: 8:47 PM User: WEST\SQLCLUSTER$ Computer: DOMAINCONTROLLER.WEST.company.corp Description: User Account password set: Target Account Name: SQLCLUSTER$ Target Domain: WEST Target Account ID: WEST\SQLCLUSTER$ Caller User Name: SQLCLUSTER$ Caller Domain: WEST Caller Logon ID: (0x0,0x7A518945)

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  • Difference between adding MIME types in IIS via Websites vs Local Computer?

    - by Alex Key
    What is the difference between adding MIME types in these 2 different situations? When in IIS 6 manager... Right click on the computer name (local computer) properties mime types Right click on the "Web sites" folder properties http headers mime types I'm guessing that perhaps option 1 adds MIME types for FTP also? However if that were true i'd expect to be able to add MIME types specifically in the properties of FTP (and not just websites). thanks for your help.

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  • Get 5.1 surround sound from computer through a VCR config?

    - by Wedding Nails
    I'm posting to see if my idea of this setup is right and can be done. I currently have the following "equipment": a JVC VCR -quite old-, which has built in surround sound (aka it has several speaker outputs, which I believe is 5.1 and are connected to several speakers that are in every corner of the room), a computer with SPDIF optical output and a new flat screen TV (with built in HDMI). I want the computer to take advantage of the VCR's surround system (all the speakers in the room) in order to play mainly music and video always with all the speakers (5.1) and with the maximum sound quality. Currently, the computer plays sound only through the front speaker (I connect one output to the on board pc audio input) and the quality is really bad. As a side note, the computer video runs with S-video (old school), and the picture quality as you would imagine, is really bad with the new big LCD screen. My main goals are: to upgrade the picture with a new video card which would support HDMI (my tv has HDMI). to buy a SPDIF optical cable, connect one end to the VCR SPDIF input and the other end to the PC output This is theoretically what I've researched so far, and I came out with several questions: in this case, with the SPDIF cable connected, and all the configurations done in windows allowing the 5.1, will I get every content I play "converted" or played through all of my speakers? (I read this forum post). I already know that in order for this setup to play from all the speakers, the content/audio source has to be 5.1. but my question is, if there is a way to play from all of the speakers no matter what type of content I'm playing (that's why I said conversion there) I already know that HDMI cables carry digital sound. Is there a way I can only use said HDMI cord to the tv, and get sound through the VCR? (I'm not too sure about this, I would have to disable the TVs speakers and use the VCR surround as default, but I have no clue wether this can be done or not). Update: The ultimate question is, do I really have to rely on "sound virtualization" technology to get sound from all the speakers, no matter what content I play? (do I require a newer sound card, like a creative soundblaster with said technology?) Thanks!

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  • UltraSurf not working, used to work on same network (and is working fine on friend's computer on same network)

    - by Kush
    I'm using UltraSurf (10.17), it used to work fine but now its not working on my computer (Windows 7) and the window keeps showing "Connecting Server..." and after sometime, it fails to establish the connection. While, its working perfectly on the friend's computer on the same network. Any help will be appreciated. (Please note that using Proxifier would be my last option if I can't get UltraSurf working anyway).

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  • Is it possible to integrate Computer Associates SiteMinder with SQLServer?

    - by Scott Weinstein
    We have a MS SQL BI stack which the standards group wants us to move to "WebSSO" which is based on Computer Associates SiteMinder/netegrity product. I figure integrating the web component won't be too hard, but we have users which connect to the Database directly - currently using Windows Authentication. Is is possible to itegrate Computer Associates SiteMinder with SQL Server? With SSAS? If so, how much effort is involved?

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  • Is There Something Wrong With My Computer Or The Website Server?

    - by thewarspk
    Recently I've been playing one new game which is called THE WARS, it's so fucking interesting that has become the routine work of my life. Yesterday i carelessly downloaded some files with virus, now my computer can't work properly, i just found i couldn't open the game page! Im so mad now, im wondering is there something wrong with my computer or website server, if it's mine, i will find someone to fix my PC, please check out for me...thank you very much, here is the address http://wars.swagblack.com/webgamethewars.aspx

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  • How to buy a computer that supports multiple monitors?

    - by Curtis Gibby
    When shopping for a new desktop computer, I'd like to get one that allows me to use two monitors. Is that something that most current-generation video cards can do (in late 2012), or do I need to search for a specific graphics card, or specific attributes for a card? I've Googled the question but most answers talk about how to figure out if a computer that you already have can support dual monitors (generally, by plugging two monitors and seeing if they both work). Is there some key terminology that I'm missing in my searches?

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  • Is it possable to invert the image output on a computer for a rear projection screen?

    - by Faken
    Hello everyone, Is there a way to flip/invert/mirror a video out on a computer with a on board Intel video card? I'm making a large rear projection screen and i need to invert the image to project properly. One of my projectors has a function that automatically inverts the image, but the other one may or may not (likely not) and i need two projectors to drive the system so I'm hoping to do the inversion on the computer side before projecting.

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  • VPN connection prevents the computer from sleeping - can I avoid that ?

    - by driis
    Most of the time, I need to have an active VPN connection when working from my home PC. I've discovered, that if the VPN is active, and I leave the computer, the computer does not go to sleep automatically, as it should. If i disconnect VPN, it works. Why is that ? How can I ensure that my PC can go into sleep mode automatically even with the VPN connection on ?

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  • Is there an application to open links on another computer?

    - by kbyrd
    I'm connecting to another computer via RDP. I would like to click on links inside my RDP session and have the links open in a browser on my client computer. It feels like I could install some application on both ends and have them communicate over TCP and proxy the URL opening. Does something like this exist?

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  • How can I create "My Computer" toolbar at the top of the Desktop in Windows 7?

    - by user8875
    In previous versions of Windows, I have been able to "drag and drop" the My Computer icon to the top or sides of the desktop and convert it into a toolbar. The toolbar could be set "always on top" or "autohide". I found this a very convenient way to have instant access to all my drives with NO clicks. Windows 7 does not appear to have this functionality. Is there any way to recreate a My Computer toolbar at the top of the Desktop in Windows 7?

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  • How to fix winlogon.exe randomly crashing/hanging my computer?

    - by Neeb
    I've got these problems: 1) sometimes winlogon.exe crashes at boot-up and my whole computer shuts off once i click "no" to visual-studio-2008 just-in-time-debugger window, takes about 30 secs until my harddrives starts up again, its really scary, i am afraid it is causing hardware malfunctions in long term. this has happened dozen of time now. 2) sometimes i leave the computer alone a while, i come back and i notice ctrl+alt+del doesnt work and winlogon.exe is using 100% of one of my 4 cores.

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  • How to fix winlogon.exe randomly crashing/hanging my computer?

    - by Neeb
    I've got these problems: 1) sometimes winlogon.exe crashes at boot-up and my whole computer shuts off once i click "no" to visual-studio-2008 just-in-time-debugger window, takes about 30 secs until my harddrives starts up again, its really scary, i am afraid it is causing hardware malfunctions in long term. this has happened dozen of time now. 2) sometimes i leave the computer alone a while, i come back and i notice ctrl+alt+del doesnt work and winlogon.exe is using 100% of one of my 4 cores.

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  • Computer shows error message when being shut down. What does it mean?

    - by Xavierjazz
    My OS is Windows XP SP3. This message sometimes comes up when I am shutting the computer down: The instruction at 0x00000000 referenced memory at 0x00000000. The memory could not be read. The computer still shuts down. I cannot find a reference to this happening on shutdown, it only seems to be connected to programs that I don't have. I have the whole Word 2003 package. Any direction appreciated.

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  • How to share screen & computer sound in skype on windows 7?

    - by user31284
    I'd like to watch a video with sound on one computer, share the screen, and have the sound heard by the other computer, not going through the speakers. i.e. it should transmit the video from my screen and the same sound that's going to the speakers, right off the sound card. It is possible to do on XP, but not on 7. I have tried to use the stereo mix as the sound source, but it seems that skype blocks that.

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  • Why does my computer restart immediately after I shut it down?

    - by Youri
    After I shut down my computer it automatically starts up again. I've tried re-installing Windows 7 64-bit, resetting my BIOS, installing the newest drivers and also changing the boot and recovery settings. The motherboard I have is a MSI P67A-GD65 (B3), and the processor is a Intel Core i7-2600K. How can I shut down my computer and have it stay off? Also, what is causing it to immediately boot back up?

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