<div dir="ltr"><div class="gmail_default" style="font-size:small;color:#351c75">Dear all,</div><div class="gmail_default" style="font-size:small;color:#351c75"><br></div><div class="gmail_default" style="font-size:small;color:#351c75">I would like to do molecular-dynamics calculations using cp.x command, but I have faced with a strange issue. I found that in cp.x calculations, the number of requested cores has to be equal to the number of system molecules!<br><br>For example, if I have 32 (or 64) H2O molecules, I have to run cp.x with "-n 32 (or -n 64)". But for other qe commands, such as pw.x, I can do parallel calculations on as many nodes/cores as I want/need.<br></div><div class="gmail_default" style="font-size:small;color:#351c75"><br></div><div class="gmail_default" style="font-size:small;color:#351c75">I would like to know that is this a usual feature of cp calculations? If so, does anyone know if it exists in all md packages like cp2k? </div><div class="gmail_default" style="font-size:small;color:#351c75">Is there any way for me to solve this problem in qe package?</div><div class="gmail_default" style="font-size:small;color:#351c75"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><font size="2" color="#351c75">Yours sincerely,</font></div>
<div><font size="2" color="#351c75">Zara</font></div></div></div></div></div></div></div></div></div></div></div>