<div dir="ltr">Thank you very much Prof.Giannozi for your comment.<br>Best regards,Payam Norouzzadeh<br><br><div class="gmail_quote">On Thu, Mar 29, 2012 at 3:42 AM, Paolo Giannozzi <span dir="ltr"><<a href="mailto:giannozz@democritos.it">giannozz@democritos.it</a>></span> wrote:<br>
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On Mar 28, 2012, at 21:05 , Payam Norouzzadeh wrote:<br>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
etot_conv_thr = 1.0E-9 ,<br>
forc_conv_thr = 1.0D-4<br>
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these are very strict thresholds, especially the first one. I do not think<br>
you will ever need such a level of convergence<br>
<br>
Also note that some optimization algorithms do not honor some<br>
convergence criteria, if I remember correclty<br>
<br>
P.<br>
---<br>
Paolo Giannozzi, Dept of 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><br>
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