Dear users<br><br>I am curious about the calculation speed related to "ecutwfc" and "ecutrho". As indicated in the tutorial, ecutwfc represents the energy cutoff (Ry) and ecutrho refers to kinetic energy cutoff for charge density and potential. I cannot fully understand the meaning of that brief description. From my experience (vasp), the larger the energy cutoff, the slower the calculation would be, but more accurate. I just would like to know how to set the experience values of the two flags for the case of metal bulk (and surface) and metal oxide bulk (and surface)? Thank you.<br clear="all">
<br>-- <br>Sincerely yours<br><br>Jiaye Li<br><br>