[aerothermal]

df4ba1fef5ae: ~>> ls
0  100	200  287  Allrun  constant  postProcessing  system
df4ba1fef5ae: ~>> paraFoam -touchAll
Created 'openfoam.blockMesh'
Created 'openfoam.OpenFOAM'
df4ba1fef5ae: ~>> ls
0    200  Allrun    openfoam.OpenFOAM	postProcessing
100  287  constant  openfoam.blockMesh	system
df4ba1fef5ae: ~>> paraFoam
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-openfoam'
qt.qpa.screen: QXcbConnection: Could not connect to display localhost:11.0
Could not connect to any X display.

Same error in Mac OSX Big Sur and Linux SUSE SLES 15.
How can I fix it?

[aerothermal]

I managed to make paraFoam work in MacOSx after the installation of Paraview. Now I can use Paraview or ParaFoam.

ParaFoam is slower than Paraview.

To use Paraview I had to change the extension .OpenFoam to .foam

However, in SUSE SLES 15 Paraview does not work after installation. It appears to be a conflict between the OpenGL in the software and the NVIDIA driver of the OS.

And I cannot install the new driver from NVIDIA because it says that GUI or NVIDIA persistenced or smi is being used.