[gmx-users] segmentation fault : g_sas

David spoel at xray.bmc.uu.se
Sat Jan 31 10:51:01 CET 2004


On Sat, 2004-01-31 at 01:13, Madhuri Agashe wrote:
> Hi,
> I am trying to analyze the solvent accessible areas for a protein after
> running molecular dynamics on it.
> I used the following command:
> 
> g_sas -f 2.trr -s 2.tpr -o area.xvg -r resarea.xvg -n 3.ndx
> 
> I always get the following output for this:
> 
> Opening library file /usr/local/share/gromacs/top/dgsolv.dat
> 
> ++++++++ PLEASE CITE THE FOLLOWING REFERENCE ++++++++
> D. Eisenberg and A. D. McLachlan
> Solvation energy in protein folding and binding
> Nature 319 (1986) pp. 199-203
> -------- -------- --- Thank You --- -------- --------
> 
> 3987 out of 70695 atoms were classified as hydrophobic
> 
> Back Off! I just backed up area.xvg to ./#area.xvg.3#
> frame:     0Segmentation fault
> 
> 
> Is this segmentation fault due to some error in any of the input files? Or
> is there some problem with this command?
does it also crash with the -r option? 
which gromacs version?
is 3.ndx correct?

> 
> Thanks,
> Madhuri
> 
> 
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-- 
David.
________________________________________________________________________
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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