[gmx-users] range of gen_seed

Jochen Hub jhub at gwdg.de
Fri Oct 17 13:03:40 CEST 2008

sarbani chattopadhyay wrote:
> Hi everyone,
>                    I want to start from the same starting structure with different velocities.
> In the ".mdp" file. I used 3 different values for "gen_seed" for three different runs : 1. one is 
> the default, the other two are 1 and 571.
> I want to know that does this ensure that the mdrun starts with diffrent velocities ?

You can have a look at the starting velocities by converting the tpr in
a gro file with editconf.


> Is there any defined range for the random number generator?
> Thanks in advance.
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Dr. Jochen Hub
Max Planck Institute for Biophysical Chemistry
Computational biomolecular dynamics group
Am Fassberg 11
D-37077 Goettingen, Germany
Email: jhub[at]gwdg.de
Tel.: +49 (0)551 201-2312

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