[gmx-users] checking gen_seed

Mark Abraham Mark.Abraham at anu.edu.au
Tue Mar 22 08:44:51 CET 2011

On 22/03/2011 6:28 PM, Kwee Hong wrote:
> Hi all,
> I've accidentally deleted my mdp and .tpr  file.. :(
> Is there a way I could check the gen_seed of my simulation from the 
> .tpr or the output of my simulation as I need the info to simulate the 
> same system at another temerature?

I don't think gen_seed is saved in the .tpr, but you can see with gmxdump.

At a different temperature it generates different velocities anyway, so 
I don't think there is value in controlling this variable.

More importantly, if you're simulating long enough to approach 
convergence, the value of gen_seed doesn't matter because the simulation 
has converged. If you're not simulating that long, then it also doesn't 
matter, in that your results won't be worth much even if you used the 
same gen_seed at the same temperature...

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