Changes between Version 3 and Version 4 of vnc3d/manual


Ignore:
Timestamp:
05/03/16 23:18:13 (8 years ago)
Author:
Jens Henrik Goebbert
Comment:

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  • vnc3d/manual

    v3 v4  
    22[[PageOutline]]
    33
    4 VNC follows a very general approach, where a remote graphical desktop on one node of the remote cluster is started. \\
    5 On the user's workstation only a lightweight VNC viewer has to be installed. \\
    6 The graphical screen of the remote desktop is send as an image from the cluster to the viewer on the fly.
     4{{{#!table style="border:none; text-align:left; margin:0px"
     5 {{{#!th align=left,style="border: none"
    76
    8 The user can work with this remote graphical desktop in the usual way, just by interacting with keyboard and mouse. \\
    9 This is a very convenient way to work on a remote machine, not only for data visualization.
     7[[Image(http://www.turbovnc.org/pmwiki/uploads/Main/turbovnc-128.png, 60px, align=left, margin=0, link=http://www.turbovnc.org)]]
    108
    11 VNC offers the ability to detach from a session (running in a VNC server) and then attach back at a later time. \\
    12 That means, that the user can close the VNC viewer on his/her computer and any application started in the VNC session on the server keeps on running - they do not pause or even be killed. \\
    13 Later on the user can connect back to the same VNC session (even from a different computer) and keep on working. \\
     9 }}}
     10 {{{#!th align=left,style="border: none"
    1411
    15 [[Image(Trac_Setup_VNC.png, 640px)]]\\
     12'''[http://www.turbovnc.org TurboVNC]'''
     13  * VNC Viewer '''must be''' installed on your local computer
     14  * JSC will focus on TurboVNC 2.x as it is optimized for use with VirtualGL.
     15  * '''for best performance'''
     16    * do not use any other VNC viewer!
     17    * use VirtualGL to run OpenGL applications
     18 }}}
     19}}}
    1620
    17 ==== hardware accelerated rendering (OpenGL)
    18 [[Image(https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/X11transport.png/600px-X11transport.png, 200px, align=right, margin=0)]]
    19 Whenever an OpenGL capable visualization software, like !VisIt, is started on the remote cluster node, \\
    20 OpenGL commands can be redirected to the GPU of this node with the help of [http://www.virtualgl.org VirtualGL]. \\
    21 * ... using '''vglrun''' (e.g. vglrun paraview)
    22 This way the hardware accelerated rendering capabilities of a cluster node (if available) can be exploit for remote rendering. \\
    23 (attention: __without__ VirtualGL software, rendering using the CPU instead of the GPU must be used (if available), which is much slower).
    24 
    25 ==== ok, what do I have to do?
    26 Using VNC requires three general steps.
     21=== Using VNC requires three general steps.
    27221. '''Prepare your account''' on a JURECAVIS node.
    28232. '''Start a VNC server''' on a JURECA node.