[Chimera-users] opening large models

[Greg Couch]

Please use Chimera's Help / Report a Bug dialog to file this as a bug, 
and, if possible, give the PDB id of the 80S ribosome you are trying to 
view.  That will tell us about your computer and the size of the 
structure you're trying to view, and that will enable us to give a 
better answer.

So, my guess it that you are trying view a structure that is too big for 
your computer to handle quickly.  So the solution would be to increase 
the physical memory.  You may also need a graphics card with more 
memory.  Another possibility is that you are reading in the structure 
using the mmCIF reader -- in Chimera, the mmCIF reader is slow and the 
solution is to use the PDB format version.  Our Chimera successor, 
ChimeraX, reads mmCIF files very quickly and can handle large files with 
ease.  Unfortunately, ChimeraX is not yet available.

    HTH,

    Greg

On 03/17/2016 03:15 AM, benoit.zuber at ana.unibe.ch wrote:
> Hello
> Opening a model of the 80S ribosome takes about 30 minutes on my 
> computer (chimera version 1.10.2 build 40686). Is it normal? Is there 
> any way to speed up this step (for example, can the task be 
> parallelized)?
> Thanks in advance
> Ben
> -- 
> Prof. Benoît Zuber
> Institute of Anatomy
> University of Bern
> Baltzerstrasse 2
> Postfach 922
> 3000 Bern 9
> Switzerland
> benoit.zuber at ana.unibe.ch
> +41 31 631 84 40
> http://www.ana.unibe.ch/research/experimental_morphology/index_eng.html
>
>
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