Issue running edem on hpc?

satri
satri Altair Community Member
in Community Q&A

When i try to run a case why do i keep getting this issue

application failed to start because no Qt Platfrorm plugin could not be initialized.

It worked once or twice why is it not reliable to work every time?

I have even reinstalled the application

i cant even run it in batch mode forget GUI why does such a thing happen on Linux? and How to fix this?

 

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee

    Hi,

    Could you let us know the version of Linux you are using and the version of EDEM?

    Also could you provide the full error message?

    I addition if you start EDEM with --debug-logger flag this will write further information to a file which maybe useful, for example:

    edem -c -i --debug-logger /location/myfile.txt

    this writes the data to the .txt file. You may have to set the file location and full path to /altair/bin/edem

  • satri
    satri Altair Community Member

    Cent OS 7 64bit

    EDEM-2025

    edem -c -i /location/filRun.dem --debug-logger /location/myfile.txt -r 5.0e-8 -w 1.0e-9 -E 2 -D 0 -t 2.405e-11 -g 2.2222 -p 1

    WARNING : Argument Conflict : grid option is not applicable to GPU CUDA solvers. Option will be ignored.
    No protocol specified
    qt.qpa.xcb: could not connect to display vclhpc44:10.0
    qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
    This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

    Available platform plugins are: minimal, xcb.

    This does not run at all now. i dont know what is going on

    i dont know where that debug log is being saved it should have saved in the path but i cant find it

  • Stephen Cole
    Stephen Cole
    Altair Employee

    Hi, CentOS 7 isn't supported by EDEM or Altair products for 2025

    As an operating system CentOS 7 was end of life June 2024. EDEM recommends RHEL/CentOS 9.4 which is two major versions ahead.

    I don't know if it is fesable to get it to work without updating the OS however a few notes from older support cases:

    It maybe that   xkbcommon.so or xkbcommon-x11.so isn't on the linker path, solution would be:


    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib 

  • satri
    satri Altair Community Member

    I have done that export thing. As I mentioned. I saw the simulation run two days ago in that and now it's not running. I only wanted to add the -R option which allows me to restart the simulation.

    Or I wanted to see how to extend the simulation by some time

    Please let me know how to make it work

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