[VirtualGL-Users] Execution error with pvpython (GLXBadContext)

[Laurent P. <lau...@ec...>]

Dear VirtualGL-users,

I am using Paraview 5.4 with VirtualGL 2.5.2 on Centos 7.3 and I 
encounter an execution problem while using pvpython.

Step to reproduce :

|vglrun ~/bin/ParaView-5.4.0-Qt5-OpenGL2-MPI-Linux-64bit/bin/pvpython ||Python 2.7.11 (default, Jun 6 2017, 03:39:18) [GCC 5.3.1 20160406 (Red 
Hat 5.3.1-6)] on linux2 Type "help", "copyright", "credits" or "license" 
for more information. >>> from paraview.simple import * >>> renderView1 
= CreateView('RenderView')|

|X Error of failed request: GLXBadContext Major opcode of failed request: 
153 (GLX) Minor opcode of failed request: 26 (X_GLXMakeContextCurrent) 
Serial number of failed request: 60 Current serial number in output 
stream: 60|

I can see in the Xorg.0.log the multiple connection attempt from 
pvpython which are closed instantaneously.

[2675346.781] AUDIT: Mon Jul  3 15:30:11 2017: 188066: client 9 
connected from local host ( uid=1520 gid=500 pid=26275 )
[2675346.782] AUDIT: Mon Jul  3 15:30:11 2017: 188066: client 9 disconnected
[2675346.782] AUDIT: Mon Jul  3 15:30:11 2017: 188066: client 9 
connected from local host ( uid=1520 gid=500 pid=26275 )
[2675346.783] AUDIT: Mon Jul  3 15:30:11 2017: 188066: client 10 
connected from local host ( uid=1520 gid=500 pid=26275 )
[2675347.317] AUDIT: Mon Jul  3 15:30:11 2017: 188066: client 11 
connected from local host ( uid=1520 gid=500 pid=26275 )
[2675347.329] AUDIT: Mon Jul  3 15:30:11 2017: 188066: client 12 
connected from local host ( uid=1520 gid=500 pid=26275 )
[2675347.417] AUDIT: Mon Jul  3 15:30:12 2017: 188066: client 9 disconnected
[2675347.417] AUDIT: Mon Jul  3 15:30:12 2017: 188066: client 12 
disconnected
[2675347.417] AUDIT: Mon Jul  3 15:30:12 2017: 188066: client 11 
disconnected
[2675347.418] AUDIT: Mon Jul  3 15:30:12 2017: 188066: client 10 
disconnected


The error does not occur when using Paraview GUI.

Does anyone have encounter this problem ? Is there any workaround ?
I have tried to set up some env variables, like DISPLAY or LD_PRELOAD, 
but it does not work.

Thank you for any advices.

Best regards,

Laurent Pouilloux

-- 
Ingénieur en Calcul Scientifique
Laboratoire de Mécanique des Fluides et d'Acoustique
École Centrale de Lyon
36 Avenue Guy de Collongue, 69130 Écully
Batiment I11 - Bureau 11097W
Tél : 	04.72.18.61.57