Learning Forum

[akefi2]

Hello ,

We are reaching out because we are trying to help our client to run ANSYS HFSS on our cluster using ondemand VNC but it segfaults.

### here some details

Software version
ANSYS_HFSS/2024.R2

OS version
$ cat /etc/os-release
NAME="Rocky Linux"
VERSION="9.2 (Blue Onyx)"

Running on a CPU only AMD node we see this segfault
/software/EasyBuild/AMD_EPYC_7763_64-Core_Processor/software/ANSYS_HFSS/2024.R2/v242/Linux64/.setup_runtime: line 426: 3085979 Aborted (core dumped) "$@"

We tried running on an Intel node with an L40 GPU and VirtualGL. We first see a
library load error from VirtualGl. Ultimatly it fails with the same type of segf
ault.

$ vglrun -d /dev/dri/card1 ansysedt
ERROR: ld.so: object 'libvglfaker.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.
/software/EasyBuild/AMD_EPYC_7763_64-Core_Processor/software/ANSYS_HFSS/2024.R2/v242/Linux64/.setup_runtime: line 426: 1003487 Aborted (core dumped) "$@"

#### these are the dependencies

Verifying dependencies

[smohr@a-001 Linux64]$ export ANS_DEPCHECK=1 ; ./ConfigureSoftware.bash --fullconfig
ANSYS Electromagnetics 24.2 Configuration
=========================================
Hostname: a-001
User: smohr

> Running first-time configuration...
- Verifying all software dependencies are available: Done

- Retrieving user settings... Done
- Applying user settings... Done
- Configuring OCX files... Done
- Retrieving machine settings... Done
- Applying machine settings... Done
- Configuring binaries... Done
First-time configuration completed successfully.

#### Please let us know if you have questions about this

We were wondering if you could assist us to help fix this issue or direct us to who can help.

Thanks
A

[randyk]

Hi Akefi2,

Please try running this - what is the output:
      vglrun -sp +pr /opt/VirtualGL/bin/glxspheres64

Also, try this - 

$ export ANSOFT_ENABLE_FRONTBUFFER_OPENGL=1

$ vglrun /software/EasyBuild/AMD_EPYC_7763_64-Core_Processor/software/ANSYS_HFSS/2024.R2/v242/Linux64/ansysedt


If still failing:
$ export ANSYS_EM_VIEW3D_DISPLAY_RENDERING_METRICS=1
$ vglrun /software/EasyBuild/AMD_EPYC_7763_64-Core_Processor/software/ANSYS_HFSS/2024.R2/v242/Linux64/ansysedt
Insert a HFSS design and you should see on-screen rendering diagnostics info in lower left corner.
Take a snapshot of the screen showing those metrics and share it.

thanks
Randy