[Paraview] Nvidia K20x on cluster

[Albina, Frank]

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

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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

- --
Felipe Bordeu Weldt
Ingénieur de Recherche
- -------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06
Felipe.Bordeu at ec-nantes.fr
Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
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