Changes between Version 14 and Version 15 of vnc3d


Ignore:
Timestamp:
02/19/16 12:18:56 (8 years ago)
Author:
Jens Henrik Goebbert
Comment:

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  • vnc3d

    v14 v15  
    55in-place on the supercomputer where the data resides and more compute resources are available.
    66
    7 A graphical login using Virtual Network Computing (VNC) simplifies the access to remote visualization. \\
     7A graphical login using Virtual Network Computing (VNC) simplifies the access to remote visualization.
    88A broad variety of Linux applications with graphical user interface and/or need for OpenGL can be used directly on the supercomputers via VNC.
    99
    10 VNC provides a complete graphical and remote desktop by transmitting the keyboard and mouse events from your computer to the remote machine, relaying the graphical screen updates back in the other direction.
     10VNC provides a complete graphical and remote desktop by \\
     11* transmitting the keyboard and mouse events from your computer to the remote machine and \\
     12* relaying the graphical screen updates back in the other direction.
    1113
    1214VNC is
    … …  
    2022
    2123== ... using VNC
    22 VNC follows a very general approach, where a remote graphical desktop on one node of the remote cluster is started. On the user's workstation only a lightweight VNC viewer has to be installed. The graphical screen of the remote desktop is send as an image from the cluster to the viewer on the fly.
     24VNC follows a very general approach, where a remote graphical desktop on one node of the remote cluster is started. \\
     25On the user's workstation only a lightweight VNC viewer has to be installed. \\
     26The graphical screen of the remote desktop is send as an image from the cluster to the viewer on the fly.
    2327
    24 The user can work with this remote graphical desktop in the usual way, just by interacting with keyboard and mouse. This is a very convenient way to work on a remote machine, not only for data visualization.
     28The user can work with this remote graphical desktop in the usual way, just by interacting with keyboard and mouse. \\
     29This is a very convenient way to work on a remote machine, not only for data visualization.
    2530
    2631==== hardware accelerated rendering (OpenGL)
    2732[[Image(https://upload.wikimedia.org/wikipedia/commons/thumb/6/67/X11transport.png/600px-X11transport.png, 100px, align=right, margin=0)]]
    28 Whenever an OpenGL capable visualization software, like !VisIt, is started on the remote cluster node, OpenGL commands can be redirected to the GPU of this node with the help of [http://www.virtualgl.org VirtualGL] (using the command 'vglrun'). This way the hardware accelerated rendering capabilities of a cluster node (if available) can be exploit for remote rendering. (attention: __without__ VirtualGL software, rendering using the CPU instead of the GPU must be used (if available), which is much slower).
     33Whenever an OpenGL capable visualization software, like !VisIt, is started on the remote cluster node, \\
     34OpenGL commands can be redirected to the GPU of this node with the help of [http://www.virtualgl.org VirtualGL] (using the command 'vglrun'). \\
     35This way the hardware accelerated rendering capabilities of a cluster node (if available) can be exploit for remote rendering. \\
     36(attention: __without__ VirtualGL software, rendering using the CPU instead of the GPU must be used (if available), which is much slower).
    2937
    3038[[Image(Trac_Setup_VNC.png, 640px)]]\\