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<DIV>Dear xirainbow:</DIV>
<DIV style="TEXT-INDENT: 2em">I know that. But I think the amount of calculation 
is the same if 'nbnd' and 'K_POINTS' are set the same values. What I donot 
understand is the difference of performance.</DIV>
<DIV style="TEXT-INDENT: 2em">Best Wishes,</DIV>
<DIV>Yunpeng Wang</DIV>
<DIV style="TEXT-INDENT: 2em">&nbsp;</DIV>
<DIV>--------------------------------------------------------------------------</DIV>
<DIV>Date:&nbsp;Thu,&nbsp;10&nbsp;Sep&nbsp;2009&nbsp;03:12:10&nbsp;+0000</DIV>
<DIV>From:&nbsp;xirainbow&nbsp;&lt;nkxirainbow@gmail.com&gt;</DIV>
<DIV>Subject:&nbsp;Re:&nbsp;[Pw_forum]&nbsp;performance&nbsp;of&nbsp;occupation='fixed'&nbsp;and</DIV>
<DIV>='smearing'</DIV>
<DIV>To:&nbsp;PWSCF&nbsp;Forum&nbsp;&lt;pw_forum@pwscf.org&gt;</DIV>
<DIV>Message-ID:</DIV>
<DIV>&lt;21fbc4790909092012r2545e4anbe65ab8da314ae7f@mail.gmail.com&gt;</DIV>
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<DIV>&nbsp;</DIV>
<DIV></DIV>
<DIV>Dear&nbsp;Wang?&nbsp;Smearing&nbsp;is&nbsp;used&nbsp;to&nbsp;accelerate&nbsp;scf&nbsp;convergence&nbsp;when&nbsp;you&nbsp;deal&nbsp;with</DIV>
<DIV>metal&nbsp;material.</DIV>
<DIV>But&nbsp;the&nbsp;convergence&nbsp;of&nbsp;smearing&nbsp;must&nbsp;be&nbsp;checked&nbsp;carelfully:)</DIV>
<DIV>&nbsp;</DIV>
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<DIV align=left><FONT face=Verdana color=#c0c0c0 size=2>2009-09-10 
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<DIV><FONT face=Verdana color=#c0c0c0 size=2><SPAN>shypirate</SPAN> 
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