NVIDIA Corporation GP100GL [Tesla P100 PCIe 16GB] (rev a1)
nvidia-xconfig -a --allow-empty-initial-configuration --use-display-device=None --virtual=1920x1200 --busid PCI:134:0:0
but I can not check if the opengl is working and if I am using the card.(how can i check the card usage?)
the quality of ansys Mechanical software is awful and I dont know if it is using the card.

is
"P100 requires special drivers included with NV Grid 5.1. This driver needs to pay. Free drivers do not have OpenGL features." that someone mentioned here
https://www.agisoft.com/forum/index.php?topic=8199.0
True?
I have no personal experience with Tesla GPUs. All I can tell you is that the nVidia driver available here:
https://www.nvidia.com/Download/index.aspx?lang=en-us
claims to support the P100. Several things to check:
1. Did you run vglserver_config after running nvidia-xconfig?
2. Did you reboot the system after running vglserver_config?
3. Did you perform the Sanity Check procedure (https://cdn.rawgit.com/VirtualGL/virtualgl/2.6.3/doc/index.html#hd006002001) to ensure that VirtualGL has proper access to the GPU?
4. Did you use vglrun to launch the application? (It was unclear from your message, since you did not include the command line that you used to launch GLXspheres.)
DRC
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