Re: How to split large NAMD DCD file

From: Aron Broom (
Date: Thu Jan 24 2013 - 11:06:45 CST

try looking for catdcd. I think the usual intention of it is to
concatenate (join) DCD files together, but it may be able to do the
opposite also. That seems like an unreasonably large file, how often were
you writing out frames? Also, was the output binary, because they will
generally cut the file size in half (which would still leave you with a
memory problem in this case, but is generally helpful).

On Thu, Jan 24, 2013 at 11:49 AM, snoze pa <> wrote:

> Dear NAMD users,
> I have a large DCD file, close to 100GB which is difficult to read in
> VMD. Is there any tool so that I can split the DCD file into 5GB ot 10GB
> small number of DCD files.
> Thank you very much,
> S

Aron Broom M.Sc
PhD Student
Department of Chemistry
University of Waterloo

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