<html><body><div style="color:#000; background-color:#fff; font-family:garamond, new york, times, serif;font-size:14pt"><div>Hi dear all</div><div>I'm simulating a system containing CNT, when I put CNT in a unit cell and want to run energy minimization in a vacuum, I encounter with such an error: "The optimal PME mesh load for parallel simulations is below 0.5 and
for highly parallel simulations between 0.25 and 0.33, for higher
performance, increase the cut-off and the PME grid spacing", after running grompp. I've tried a lot of numbers for cut-off radius ,but I didn't get any result, at last I changed the coulomb type from PME to Cut-off, and it worked, I want to know if my results will be reasonable in this case or not, and how to solve that error.</div><div>thank you in advanced</div><div>Bests</div><div><br></div><div>-Zahra<br></div></div></body></html>