From: Axel Kohlmeyer (
Date: Tue Sep 01 2015 - 20:18:06 CDT

On Tue, Sep 1, 2015 at 6:49 PM, Ern Seang Ong <>

> Dear VMD users,
> I have a problem that I have tried to figure out for quite some time but I
> still can’t find a solution for it. The problem is an APPCRASH issue when I
> try to load a big trajectory file (.dcd) into VMD. I don’t face any problem
> when loading a smaller trajectory file with 1GB++ size. The problem occurs
> when I try to load a >2GB trajectory file. I’m using VMD 1.9.2 Windows
> OpenGL. There is a big physical memory in my computer, so this is not due
> to the memory issue. I wonder whether it is due to the internal setting in
> VMD, which prohibits files larger than 2GB.

​the amount of memory in your computer doesn't matter, the windows VMD
executable is 32-bit and thus limited in the amount of memory it can
address and use.


> Really looking forward to solve this problem. Any help is welcome.
> Thank you.
> Cheers,
> Ernest
> ------------------------------
> PO Box 7916, CANBERRA BC 2610, Australia
> Web:
> CRICOS Provider no. 00098G
> This message is intended for the addressee named and may contain
> confidential information. If you are not the intended recipient, please
> delete it and notify the sender. Views expressed in this message are those
> of the individual sender and are not necessarily the views of UNSW.

Dr. Axel Kohlmeyer
College of Science & Technology, Temple University, Philadelphia PA, USA
International Centre for Theoretical Physics, Trieste. Italy.