[gmx-users] grompp error with cpp

[toma0052]

Thanks for the reply,
     I have tried changing the mdp file so it looks for the cpp in /lib/cpp,
/lib/cpp.exe, /bin/cpp, and /bin/cpp.exe and all of these produce the same
message as below, that the cpp file does not exist.  It had worked when I ran
a simulation before with the mdp file as /lib/cpp, but I am not sure why it
is not working now.  Should I just try to reinstall Gromacs?

Thanks,
Mike


On 24 Mar 2007, David van der Spoel wrote:
> toma0052 wrote:
> > Hello,
> >      I just installed Gromacs on my windows machine under cygwin, and
> > everything seemed to go fine with the installation and whatnot. 
Initially,
> > when I tried to run a simulation, I obtained the error that Gromacs found
> the
> > number of coordinates in my .top file to be 0, because it could not find
> the
> > cpp.  From the mailing list archives, I gathered that Gromacs was
checking
> > for cpp in /lib/cpp whereas in cygwin the cpp is in /bin/cpp.  So, as in
> the
> > post, I created a link in /lib pointing to /bin/cpp.  I ran a simulation,
> and
> > everything went fine.  Now, I am trying to run another simulation, and I
am
> > running into the same problem as before.  When I execute grompp, I get
this
> > error:
> >  
> > Back Off! I just backed up md_shear_run.mdp to ./#md_shear_run.mdp.2#
> > checking input for internal consistency...
> > ...ling /lib/cpp
> > : No such file or directory
> > cpp exit code: 32512
> 
> replace /lib/cpp with /bin/cpp (with or without .exe) in the mdp file
> 
> 
> 
> -- 
> 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://folding.bmc.uu.se
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