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Issue running edem on hpc?

satri

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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EDEM

v2025.0

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Stephen Cole

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

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

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

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