[gmx-users] request

[David van der Spoel]

On Thu, 2004-11-18 at 11:11 +0100, baldelli.ilaria wrote:
> Hi!
> I'm a new Gromacs user. I'm using the g_msd to calculate the mean square displacement of a membrane's phospholipid, but the program doesn't work. I controlled a lot of times the input files, and I think they're right (g_msd -f traj.xtc -s confout.gro -n index.ndx ). Why the program shows "Reading frame  0time  0.000  Floating exception"? What would be my mistake? 
> Thank you 
> 
try using a tpr at the -s flag.
> Ilaria
> 
> 
> 
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-- 
David.
________________________________________________________________________
David van der Spoel, PhD, Assoc. 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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