[gmx-users] random seed in molecular dynamics

Mark Abraham mark.j.abraham at gmail.com
Fri May 3 10:02:09 CEST 2013

gen_vel controls the generation of random velocities. grompp follows it
(but I'd have to check the code to see what it does if you use grompp -t).
tprconv does not follow it.

The random seed is in a different variable, but only does anything if

I am not sure what the basis of your confusion about repeated calls to
grompp is.


On Fri, May 3, 2013 at 8:00 AM, Preeti Choudhary <
preetichoudhary18111989 at gmail.com> wrote:

> hey this is regarding random seed used in md.this is when it selects the
> intial velocity and selects from maxwell-istribution.but is it selects only
> once or selects this random seed every time when grompp makes .tpr
> file.really confused about this random seed concept.can u clear my
> confusion??
> -thanks
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