[gmx-users] changing the time step with tpbconv

[David van der Spoel]

OZGE ENGIN wrote:
> Hi all,
> 
> I am performing an 80-ns simulation. During the optimization of the parameters that were used in this run, I had performed some small test simulations, and used short frequency values to write the velocities. Unfortunately, I did not change this value into a bigger one before starting the main (longer) simulation. Consequently, I want to change the time step and use tpbconv to restart. 
> 
> Is there any way to do that?
not with tpbconv, but with grompp -t -e -s -o you can do the same (with 
a new mdp file where you have to turn on unconstrained_start and to turn 
off gen_vel).

> 
> Thanks in advance...
> Ozge Engin
> =================================
> Computational Science & Engineering
> Koc University
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-- 
David van der Spoel, Ph.D.
Molec. Biophys. group, Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:	+46184714205. Fax: +4618511755.
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://folding.bmc.uu.se