[gmx-users] minimization

mustafa bilsel mfbilsel at gmail.com
Tue Dec 28 03:10:08 CET 2010


Hi all,
At the end of the minimisation I obtained potential energy value
approximately -40,000 and I see the following warning
Stepsize too small, or no change in energy.Converged to machine precision,
but not to the requested precision Fmax < 10

As far as I know for succesful minimisation potential energy must be between
-100,000 and -1,000,000.
My em.mdp file as follows

integrator= steep
emstep=0.1
nsteps=10000000
nstlist=10
rlist=1.0
coulombtype=pme
rcoulomb=1.0
vdw-type=cut-off
rvdw=1.0
nstenergy=10

My minimisation stops at approximately 19,000 th step.
Is my minimisation acceptable?If no, how can I correct it?

best wishes
Mustafa
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://maillist.sys.kth.se/pipermail/gromacs.org_gmx-users/attachments/20101228/517fac37/attachment.html>


More information about the gromacs.org_gmx-users mailing list