[gmx-users] NVT step

[asasa qsqs]

 Dear Justin,I studied your toturial (KALP15 in DPPC).I'm simulating a drug at dppc, at nvt step i used this command: mdrun -deffnm nvt -v , but i gave this error:  Fatal error:
1 particles communicated to PME node 1 are more than 2/3 times the cut-off outof the domain decomposition cell of their charge group in dimension x.
This usually means that your system is not well equilibrated.
For more information and tips for troubleshooting, please check theGROMACS
website at http://www.gromacs.org/Documentation/Errors


 what must i do?

Many thanks,

Mrs. Mahdavi