how to make icfb resumable after a unexpected terminal disconnection?

Discussion in 'Cadence' started by walala, Oct 20, 2003.

  1. walala

    walala Guest

    Dear all,

    I need your help.

    I am a student who do research using Exceed to access Sun workstation in our
    school to use Cadence EDA software. Due to Microsoft's security hole, they
    frequently roll-out new security updates.

    The system manager at our school has a software to automatically download
    and push those new updates to our computer. The problem is: it auto-restarts
    my PC... while I am running Cadence software remotely using Exceed...

    This month I have a bunch jobs killed in this way by the new security
    updates automatical restart! One of them I had runned for 6 days and it was
    killed. I am very angry about this!

    I know "nohup" can make sure that the process is running even if logout. But
    how about Cadence software which has graphical output.

    Imagine I use "nohup icfb", where "icfb" is the Cadence EDA software that I
    am using, it has a graphical output. Then my computer was restarted, and
    then I relogin, restart my Exceed, the "icfb" process is still there, but
    with no owner, it is dead process, and its graphical interface is gone...

    By the way, "icfb" is strange that it cannot be used "nohup icfb &"...it
    will hang after several seconds....

    What can I do now? Please help me!

    -Walala
     
    walala, Oct 20, 2003
    #1
  2. walala

    Sunay Shah Guest

    hi

    We have started to use Xvnc which allows you to re-connect to your
    original xwindows session after disconnection.

    Sunay

    .--------------------------------------------.
    _____| Dr Sunay S. Shah |_______
    \ | http://www.robots.ox.ac.uk/~sunay | /
    | | Lab Tel: 01865 (2)73805 | |
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    Sunay Shah, Oct 20, 2003
    #2
  3. Citrix's ICA, and also Sun's SunRay product also handles disconnects nicely. If
    the XServer goes away, most tools will die, because the file descriptor that
    that they were writing goes away.

    For these frame buffer type tools (like VNC, Citrix and SunRay), the X server stays connected,
    but there is a layer between the X server and what you see, and that is what handles the
    disconnects (a rather simplistic description). These then give the facility to take your display
    with you (if you like).

    Andrew.
     
    Andrew Beckett, Oct 20, 2003
    #3
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