[Paraview] Nvidia K20x on cluster

[Huebl, Axel]

I think that is true for most cards, but K20 series should still support
to switch the "GPU Operation Mode" (GOM) via nvidia-settings:


http://blogs.fau.de/zeiser/2013/09/09/xserver-virtualgl-on-nvidia-k20m-gpgpus/

  nvidia-smi --gom=0 [...]

  (0 = ALL_ON)


Best,
Axel

On 08.07.2014 11:33, Felipe Bordeu wrote:
> Thanks but... K20x are only a cuda card, no graphics support.
> 
> info from :
> 
> http://comments.gmane.org/gmane.comp.video.opengl.virtualgl.user/1003
> 
> 
> End of History
> 
> Felipe
> 
> 
> 
> Le 08/07/2014 08:37, Albina, Frank a écrit :
>> IMHO, the issue is that you need to tell the NVIDIA driver that a screen will be connected at any time to the GPU, but you need to supply the driver with the screen data via a custom EDID file, like so in your xorg.conf file:
> 
>> Section "Device"
>>     Identifier     "Device0"
>>     [...]
>>     Option       "CustomEDID" "DFP-0:/etc/X11/edid-DELL_P2212H.bin"
>>     Option       "ConnectedMonitor" "DFP-0"
>> EndSection
> 
>> Section "Screen"
>>     Identifier     "Screen0"
>>     Device         "Device0"
>>     Monitor        "Monitor0"
>>     DefaultDepth    24
>>     [...]
>> EndSection
> 
>> Hope this helps.
> 
>> Frank.
>> -----Original Message-----
>> From: ParaView [mailto:paraview-bounces at paraview.org] On Behalf Of Felipe Bordeu
>> Sent: Montag, 7. Juli 2014 16:37
>> To: Paraview Mailing list (to use with ec-nantes)
>> Subject: [Paraview] Nvidia K20x on cluster
> 
>> Hello,
> 
>> We have a computer (node in a cluster) with 2 Nvidia K20x GPUs (plus a chipset for low-end visu). Is It possible to use these GPUs to accelerate ParaView visualization even if theses cards don't have a video output??? I know how to use the pvserver/paraview. But my problem is about the X11 configuration.
> 
> 
>> If I put a  'Section "Screen"' for these cards in the xorg.conf, nvidia complains that these cards don't have outputs. and if I eliminate the 'Screen' section, the card are not available. (tried display :0, 0:0 1:0...)
> 
> 
>> Any Ideas??
> 
>> Thanks
>> Felipe
> 
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-- 

Axel Huebl
Diploma Student
Phone +49 351 260 3582
https://www.hzdr.de/crp
Computational Radiation Physics
Laser Particle Acceleration Division
Helmholtz-Zentrum Dresden - Rossendorf e.V.

Bautzner Landstrasse 400, 01328 Dresden
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Vorstand: Prof. Dr.Dr.h.c. R. Sauerbrey
          Prof. Dr.Dr.h.c. P. Joehnk
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