<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><br>Dear all<br>For first step calculation, we know that the optimization of <span>ecut</span> and kpoint is <span>necessary . But I use norm conserving pseudopotential that the check of convergency with respect to total energy is time consuming. Is any parameter except total energy that can i put treshold on its convergency or not?<br>thanks a lot </span> <br>Ali Kazempour<br>
Physics department, Isfahan University of Technology<br>
84156 Isfahan, Iran. Tel-1: +98 311 391 3733<br>
Fax: +98 311 391 2376 Tel-2: +98 311 391 2375</td></tr></table><br>