[gmx-users] size limit in gromacs?
spoel at xray.bmc.uu.se
Mon Jan 19 19:12:01 CET 2004
On Mon, 2004-01-19 at 18:10, Oliver Beckstein wrote:
> Look in the mailinglist archive for 'File too big' for a detailed
> exploration. In short: access your file through nfs.
> I have no idea if 3.2.0 includes O_LARGEFILE in the file open code. (see
> http://www.gromacs.org/pipermail/gmx-users/2003-May/032229.html and
> previous messages)
we have for a while. It is a Linux problem, but modern linuces have no
problem. I've quite a few 8+ Gb xtc files.
> On Mon, 19 Jan 2004, Milan Melichercik wrote:
> > It is possible, Gromacs 3.1.4 has a file size limit (~ 2 to 2.5 GB)? Cause I
> > have 2441589428 B gromacs trajectory and if I want to show it by ngmx, the
> > program fails with message, it can't find the file. I've tried trjconv to
> > reduce amount of data, but it failed by same way.
> > Computer configuration: GNU/Linux (Debian/testing) kernel version 2.4.23
> > 1 GB RAM, AMD Athlon processor
> > 2 GB of swap space, but I think, it has no efect,
> > cause by "openning" this file it doesn't work with disk by same way as it's
> > swapping pages between swap space and memory
> > Also I think it isn't a Linux bug, cause I can do many thinks with this file
> > (e.g. cp, less, cat, mv, ...)
> > thanks a lot
> > Milan Melichercik
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David van der Spoel, PhD, Assist. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596, 75124 Uppsala, Sweden
phone: 46 18 471 4205 fax: 46 18 511 755
spoel at xray.bmc.uu.se spoel at gromacs.org http://xray.bmc.uu.se/~spoel
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