VMD-L Mailing List

From: Axel Kohlmeyer (akohlmey_at_cmm.chem.upenn.edu)
Date: Tue Jun 10 2008 - 20:21:24 CDT

On Wed, 11 Jun 2008, Aaron.Oakley_at_csiro.au wrote:

AO> Hi Folks,
AO>
AO> I have a PC (AMD Phenom X4, 4GB memory) running
AO> Windows XP at home. For some reason, VMD 1.8.6 crashes when memory use
AO> exceedes
AO> 2GB. I don't think it is memory its self to blame because I can have
AO> two instances of VMD running simultaneously with <= 2GB of memory usage.
AO> Is this because the windows version is 32 bit but the architecture is 64
AO> bit?

yes. under windows xp the maximum address space is limited to
2GB per process. also the fact that you have a 64-bit capable
cpu does not mean you are running a 64-bit OS.

AO>
AO> Any ideas about the cause/remedy?

install BSD or Linux?

cheers,
   axel.

AO>
AO> Thanks,
AO>
AO> Aaron++
AO>
AO> ----------------------------------------------------------------
AO> CSIRO Molecular and Health Technologies
AO> 343 Royal Parade
AO> Parkville
AO> VIC 3052
AO> Australia
AO> Phone (+61) 3 9662 7262
AO> ----------------------------------------------------------------
AO>
AO> 

-- 
=======================================================================
Axel Kohlmeyer   akohlmey_at_cmm.chem.upenn.edu   http://www.cmm.upenn.edu
   Center for Molecular Modeling   --   University of Pennsylvania
Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
tel: 1-215-898-1582,  fax: 1-215-573-6233,  office-tel: 1-215-898-5425
=======================================================================
If you make something idiot-proof, the universe creates a better idiot.