[gmx-users] error during mdrun

[Shine A]

Sir,

   I am studying the dynamics of membrane proteins using KALP-15 in DPPC.
Now doing nvt equilibration.During mdrun (mdrun -deffnm nvt) getting error
like this
  Fatal error:
6 particles communicated to PME node 1 are more than 2/3 times the cut-off
out of the domain decomposition cell of their charge group in dimension x.
This usually means that your system is not well equilibrated.
why this error? How can I solve this?