[Chimera-users] Broken links, system requirements

Greg Couch gregc at cgl.ucsf.edu
Wed Oct 21 19:24:36 PDT 2020

My coworkers are overly pessimistic about remotely displaying Chimera.  
My previous suggestion of using VirtualGL works remarkably well if the 
remote computer is Linux and the network is fast (e.g., at work, and not 
at home).  Depending on how Chimera is used, it might be acceptable for 
use from home too.  Just don't expect it to be respond quickly.

VirtualGL is a OpenGL wrapper that uses the graphics card on the remote 
computer and sends an image of the graphics window to the local user.  
That way you get to use the Chimera's GUI interface. So in this case, 
you do need a graphics card and the corresponding  graphics driver (AMD 
or NVIDIA recommended). VirtualGL is available at virtualgl.org.

     -- Greg

On 10/21/2020 2:45 PM, Eric Pettersen wrote:
> Hi Calvin,
> Our web sites are back up now.  For running Chimera on a server, it 
> depends what you will be doing with Chimera.  If you will be running 
> Chimera-command or Python scripts that don't save images, you can use 
> any version with the --nogui flag.  If you will be running scripts 
> that do save images, you can only do that with the "headless" Linux 
> version.  If users will be trying to run Chimera from the server and 
> remoting their display to their client, that will be very difficult to 
> get to work (assuming the remoting is via the X protocol).  It rarely 
> works unless both the client and the server have the same graphics 
> card, and since your server has no graphics card...
> --Eric
> Eric Pettersen
> UCSF Computer Graphics Lab
>> On Oct 21, 2020, at 9:24 AM, Calvin Dodge <cdodge at x-iss.com 
>> <mailto:cdodge at x-iss.com>> wrote:
>> Hello,
>> I have been trying to find out what the hardware requirements are for 
>> Chimera.  For example, how can it be run in a cluster environment 
>> with CUDA cards, but no Nvidia graphics cards?
>> My search for information has been hampered by an apparent failure or 
>> reorganization of the main site -https://www.cgl.ucsf.edu/chimera/
>> Every internal link from that page (like to Downloads) is broken.
>> Will the broken links be fixed?  Is another page the preferred one 
>> for Chimera? Do I need the OSMesa version to run without graphics cards?
>> Thanks,
>> Calvin Dodge
>> */Calvin Dodge/*/
>> Systems Analyst/
>> /Office: 832-271-7148/
>> /
>> /Email :cdodge at x-iss.com <mailto:ellorente at x-iss.com>
>> http://www.x-iss.com 
>> <https://mail.x-iss.com/owa/redir.aspx?C=32dc65a1e7df4e4289ad76e23a15fcf0&URL=http%3a%2f%2fwww.x-iss.com%2f>
>> <37143B47803B42398F4BF8870B0FECB0[25452176].png> <http://www.x-iss.com/>
>> Smart Management and Analytics for Clusters
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