<div dir="ltr">Hi,<div><br></div><div>I am getting this error number of times when I am trying to run Md with a 9 residue peptide in water box using spc216.gro</div><div><br></div><div>It says</div><div><br></div><div>"Number of grid cells is zero. Probably the system and box collapsed."<br>
</div><div><br></div><div>earlier after grompp it gives me warning that the protein atom number is less than 10% of total atom number. I dont know if that is causing any problem. even if I change "ns_type" in .mdp file to "simple" from "grid", the problem persists.</div>
<div><br></div><div>Please help.</div><div><br></div><div>Thanks and regards,</div><div><br></div><div>Subhashis</div></div>