VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Nov 12 2004 - 10:36:00 CST

Julie,
  There's really no limit for trajectory size in VMD other than
available memory and maximum 32-bit file size on some platforms.

What file format is your trajectory written in?

If the trajectory read terminates early, this normally indicates
one of the following possibilities:
  - you're loading a very large trajectory (>= 2G) on a 32-bit
    operating system, and the version of the trajectory reader plugin
    you're using doesn't have the special code for dealing with
    large-files. All of the current trajectory reader plugins
    should be able to cope with > 2GB files on most 32-bit machines.

  - the trajectory file may be corrupt (can occur when files are
    copied over a network, and on some buggy supercomputers...)

What message does VMD print when the trajectory stops loading?

  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Nov 12, 2004 at 08:52:24AM -0500, Stern, Julie wrote:
> Hello,
> I'm trying to load a very large trajectory dcd file into
> vmd. It seems that there is a limit of close to 3000 frames,
> as my file keeps getting cutoff around there in the loading process.
> Is there anything I can do to increase the ability of vmd to
> load in a larger trajectory file? Thanks.
>
> Sincerely,
> Julie Stern 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349              
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