Ricardo, Thanks for the useful info. We may opt to start an X server at bootup and then allow anyone connected to use the display. We wanted to avoid the xserver because on our existing system, slurm scripts are used to allocate a node, the script starts an X server for the user to run GL apps. Unfortunately on a newer system with many more cores, this leads to wasted resources as one user allocates the GPU and one core, the other 5 are inaccessible ....
JB > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of Ricardo Reis > Sent: 03 March 2010 23:24 > To: [email protected] > Subject: Re: [Paraview] Sharing GPUs Amongst Processes > > On Wed, 24 Feb 2010, Biddiscombe, John A. wrote: > > > Question : Supposing you have no Xserver running but you wish to take > advantage of hardware acceleration. Is it possible to create an offscreen > buffer for each pvserver without the X server. We'd like to share one GPU > between 4 cores, but without starting X. > > maybe not what you want and maybe of some usefullness... > > In the xorg.conf you can put > > Section "Device" > Identifier "Device0" > Driver "nvidia" > BusID "PCI:07:00:00" > Option "UseDisplayDevice" "none" > VendorName "NVIDIA Corporation" > EndSection > > I always had to start an xserver (if you have more than 1 GPU you can add > device and screen sections has needed to xorg.conf). I've been using this to > render using Tesla cards. > > Off course this needs to start X... > > best, > > Ricardo Reis > > 'Non Serviam' > > PhD candidate @ Lasef > Computational Fluid Dynamics, High Performance Computing, Turbulence > http://www.lasef.ist.utl.pt > > Cultural Instigator @ Rádio Zero > http://www.radiozero.pt > > Keep them Flying! Ajude a/help Aero Fénix! > > http://www.aeronauta.com/aero.fenix > > http://www.flickr.com/photos/rreis/ > > < sent with alpine 2.00 > _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
