<div dir="ltr">Has anybody any information about the performances of wavefunction and charge extrapolation (options wfc_extrapolation, pot_extrapolation='first-order', 'second-order') in PWscf? I am wondering if it makes sense to keep it, in the absence of any evidence that in at least some cases it makes the calculation faster.<br clear="all"><div><br></div><div>Paolo<br></div><div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span><span><font color="#888888">Paolo Giannozzi, Dept. Chemistry&Physics&Environment,<br>
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy<br>
Phone <a href="tel:%2B39-0432-558216" value="+390432558216" target="_blank">+39-0432-558216</a>, fax <a href="tel:%2B39-0432-558222" value="+390432558222" target="_blank">+39-0432-558222</a></font></span></span></div></div></div></div>
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