[gmx-users] Segmentation fault (core dumped) version 4.6.*

[Carlos Navarro Retamal]

Dear gmx users,
In order to run my simulations, i usually used the 5.0.* version of gromacs without problems, but since i want to performed umbrella sampling simulations (and since the option pull_geometry=position is not available for the latest versions)
For that,  i installed the 4.6.7 version of gromacs.
The installation went without issue, but every time i used a command from gromacs i got the Segmentation fault (core dumped) error:
Like for example, by using this command line:
grompp -f npt_production.mdp -c npt_equilibration.gro -p topol.top -o npt_production.tpr
i got this:
Option     Filename  Type         Description
------------------------------------------------------------
  -f npt_production.mdp  Input        grompp input file with MD parameters
 -po      mdout.mdp  Output       grompp input file with MD parameters
  -c npt_equilibration.gro  Input        Structure file: gro g96 pdb tpr etc.
  -r       conf.gro  Input, Opt.  Structure file: gro g96 pdb tpr etc.
 -rb       conf.gro  Input, Opt.  Structure file: gro g96 pdb tpr etc.
  -n      index.ndx  Input, Opt.  Index file
  -p      topol.top  Input        Topology file
 -pp  processed.top  Output, Opt. Topology file
  -o npt_production.tpr  Output       Run input file: tpr tpb tpa
  -t       traj.trr  Input, Opt.  Full precision trajectory: trr trj cpt
  -e       ener.edr  Input, Opt.  Energy file
-ref     rotref.trr  In/Out, Opt. Full precision trajectory: trr trj cpt

Option       Type   Value   Description
------------------------------------------------------
-[no]h       bool   no      Print help info and quit
-[no]version bool   no      Print version info and quit
-nice        int    0       Set the nicelevel
-[no]v       bool   no      Be loud and noisy
-time        real   -1      Take frame at or first after this time.
-[no]rmvsbds bool   yes     Remove constant bonded interactions with virtual
                            sites
-maxwarn     int    0       Number of allowed warnings during input
                            processing. Not for normal use and may generate
                            unstable systems
-[no]zero    bool   no      Set parameters for bonded interactions without
                            defaults to zero instead of generating an error
-[no]renum   bool   yes     Renumber atomtypes and minimize number of
                            atomtypes

Segmentation fault (core dumped)
That is not telling me anything useful :/
I tried also installing the 4.6.3, but sadly i have the same problems with this version.
Hope someone can help me.
Best,
Carlos
--
Carlos Navarro Retamal
Bioinformatics Engineering
Ph. D (c) Applied Sciences.
Center of Bioinformatics and Molecular Simulations. CBSM
University of Talca
Av. Lircay S/N, Talca, Chile
T: (+56) 712201 798
E: carlos.navarro87 at gmail.com or cnavarro at utalca.cl