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  • The following error is seen in the FLUENT console window: No error handler available Error: Cortex received a fatal signal (SEGMENTATION VIOLATION).

  • Update the video card to a supported certified video card (ANSYS certifies the nVida Quadro FX high-end line or the ATI FireGL/Pro high-end line only) and update the video card driver

    Locating the Video Card/Driver

    Windows XP

    1. Open up Control Panel > Display > Settings > Advanced > Adapter (this will tell you what video card you are using)
    2. Properties > Driver (this will tell you what driver version you are using) > Driver Version
    3. Once you have your video card and driver information go to the Video Card vendors website and download a newer driver. Choose one of the links for your video card vendors website. Nvidia, http://www.nvidia.comhttp://www.nvidia.com or ATI, http://www.amd.comhttp://www.amd.com It is important that you remove the existing driver before you install the newer driver.

    Windows 7

    1. Open Control Panel > Device Manager > Display Adapters > Driver tab > Driver Version. (If you are prompted for an administrator password or confirmation, type the password or provide confirmation)
    2. Once you have your video card and driver information go to the Video Card vendors website and download a newer driver. Choose one of the links for your video card vendors website. Nvidia, http://www.nvidia.comhttp://www.nvidia.com or ATI, http://www.amd.comhttp://www.amd.com It is important that you remove the existing driver before you install the newer driver.

    Remove the existing driver

    Windows XP

    1. Open up Control Panel > Add/Remove Programs > Uninstall NVIDIA or ATI Drivers
    2. Reboot the machine
    3. Install the newer downloaded driver
    4. Reboot the machine again.

    Windows 7

    1. Open Control Panel > Device Manager > Display Adapters > Driver tab > Uninstall. (If you are prompted for an administrator password or confirmation, type the password or provide confirmation.)
    2. Reboot the machine
    3. Install the newer downloaded driver
    4. Reboot the machine again.

    IMPORTANT NOTE: It is very important that you follow these steps exactly, especially removing the existing driver, rebooting the machine, and then installing the newer driver

    Read below for information about how to resolve most other FLUENT graphics issues.

    FLUENT 12.x - Windows

    Check to make sure FLUENT, when launched is using OpenGL

    In FLUENT, choose the Help menu, then Version. Look for the "Graphics Version": ###.#, xxx/win line.It it states msw/win FLUENT is NOT using the OpenGL driver. You can force FLUENT to use OpenGL by putting the following in the "Environment" tab in the FLUENT 12.x Launcher:

    LAUNCHER_FLUENT_OPTIONS=-driver opengl

    IMPORTANT NOTE: Making this change in the FLUENT launcher will only work when running FLUENT outside of WorkBench. This environment variable will work inside of WorkBench for ANSYS FLUENT Version 13.x.

    FLUENT 12.x - Linux/UNIX

    Check to make sure FLUENT, when launched is using OpenGL.

    In FLUENT choose the Display Menu " Driver> Info button.

    In the FLUENT Window look for the Driver line. If it states Driver X11 v.#.## the FLUENT is NOT using the OpenGL driver. You can force FLUENT to use OpenGL by putting the following in the "Environment" tab in the FLUENT 12.x Launcher:

    LAUNCHER_FLUENT_OPTIONS=-driver opengl

    IMPORTANT NOTE: Making this change in the FLUENT launcher will only work when running FLUENT outside of WorkBench. This environment variable will work inside of WorkBench for ANSYS FLUENT Version 13.x.

    Command Line Options

    If running FLUENT at the command line you can also use the following flags

    Windows

    fluent 3d -driver opengl

    Linux/UNIX

    fluent 3d -driver opengl

    Remote Access Best Practices

    Running any ANSYS application using remote access software is not certified or supported. If the machine you are remoting into has a PCIx16 slot with an nVidia Quadro FX or AMD ATI FirePro/FireGL high-end graphics card it could work with some considerations. Remember that most servers DO NOT have a PCIx16 slot so this will not be possible. There are servers on the market that do offer this capability. Please check your hardware vendors web site for more information.



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