[gmx-users] system is exploding

Baofu Qiao qiaobf at gmail.com
Fri Nov 26 11:40:15 CET 2010


Have you run the energy minimization (or further simulation to optimize
the structure and test the FF) on the small molecule before you added it
into water?

On 11/26/2010 11:26 AM, Olga Ivchenko wrote:
> Dear gromacs users,
>
> I am trying to run simulations for small molecules in water. Topology files
> I created by my self for charm ff. When I am trying to start energy
> minimization I got an error:
>
>
>  Steepest Descents:
>
> Tolerance (Fmax) = 1.00000e+00
>
> Number of steps = 1000
>
>
> That's means my system is exploding. Please can you advice me on this, what
> I need to check.
>
> best,
>
> Olga
>
>   


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 Dr. Baofu Qiao
 Institute for Computational Physics
 Universität Stuttgart
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