An update... I have a solution :) I think that twm hangs because it expects user interaction (i.e. a mouse click) before creating the window. Debugging pvserver shows that it is sitting waiting for XGetWindowAttributes and never gets them.
So I tried another tack and just ran pvserver without twm (or any window manager) and used xinit to invoke the X Server. The following commands work and will probably be useful for someone else... 1) Run a single instance (X Server shuts down when complete) xinit <fullpath>/pvserver 2) Run multiple instances (X Server shuts down when complete) xinit <fullpath>/mpirun -np 16 ./pvserver 3) Run multiple instances across multiple GPUs (X Server shuts down when complete) xinit <fullpath>/mpirun -bynode -np 8 ./pvserver -display :0.0 : -np 8 ./pvserver -display :0.1 Cheers, Paul -----Original Message----- From: Paul McIntosh [mailto:paul.mcint...@internetscooter.com] Sent: Friday, 14 May 2010 12:36 PM To: 'paraview@paraview.org' Subject: Minimal X Window System config Hi All, Does any one have information they can share on a minimal X Window System config (Centos 5.5 cluster nodes) for pvserver remote rendering to work? I can install a very minimal system consisting of things like fonts, xorg-x11-twm, glx-utils, xorg-x11-server-Xorg, xorg-x11-twm, xorg-x11-xinit, xorg-x11-server-Xorg and xorg-x11-xauth. If I run Specviewperf, glxgears or glxinfo the output is as expected. However pvserver just hangs when I connect to it from a client. The weird thing is that if I run pvserver or ParaView via VirtualGL in a TurboVNC session it works!? My solution at the moment works but is big bang and overkill for a cluster node: yum groupinstall "X Window System" "GNOME Desktop Environment" Note I have read the following: Setting up a ParaView Server http://www.paraview.org/Wiki/Setting_up_a_ParaView_Server Step by step guide for the installation and configuration of a cluster to run ParaView http://www.iac.es/sieinvens/siepedia/pmwiki.php?n=HOWTOs.ParaviewInACluster Cheers, Paul --- www.internetscooter.com _______________________________________________ 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