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    Attempting to launch FLUENT (any version) you receive this or a similar error: /ansys_inc/v140/fluent/fluent14.0.0/bin/fluent: line 2609: 22706 Segmentation fault $NO_RUN $CORTEX_PRE $EXE -f $FLUENT_PROD $CX_FLAGS "$CX_FUNCTION"

    Hit return to exit.

  • Resolution 1 : Check Xll Forwarding

    Ensure that X11 forwarding is enabled ('ssh -X' when logging in using a terminal or, if accessing through Putty, under the menu 'Connection'->'SSH'->'X11' and tick to enable). Also ensure, if using a Windows machine, that Exceed (or equivalent Linux replicating software) is turned on and functional.

    Resolution 2: Comment out or delete all IPV6 information in the /etc/host file. For example, if you have the following in the /etc/host file put a pound symbol in front of each IBV6 entry. You might need to restart the network services.

    # special IPv6 addresses localhost
    :1 localhost ipv6-localhost ipv6-loopback
    fe00::0 ipv6-localnet
    ff00::0 ipv6-mcastprefix
    ff02::1 ipv6-allnodes
    ff02::2 ipv6-allrouters
    ff02::3 ipv6-allhosts

    Resolution 3: Check your /etc/hosts file and verify that you are not having hostname problem. Also check that this is not a DNS issue. Contact your Systems Administrator for assistance.

    You can try the following:

    In a Terminal window type: hostname (use the returned hostname in the next command)
    Type: ping hostname
    It should return something as seen in the following example below:

    ping hostname.company.com (IP_ADDRESS)

    Verify that the IP_ADDRESS that was returned is the correct IP_ADDRESS for your hostname

    If it returns the error: "unknown host hostname" open up a Terminal Windows and CD to the /etc directory. Open up the hosts file. The hosts file should contain at least the following: localhost
    IP_ADDRESS hostname.company.com hostname

    (Where IP_ADDRESS hostname.company.com hostname is the IP ADDRESS on the local machine name and then add the Fully Qualified Domain Name (FQDN))

    Make the desired updates and save the file. You might need to restart the network services.
    Open up a new Terminal Window and try launching FLUENT again.

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