<div dir="ltr"><div>The stopping criterion for MSR1a is in fact in the 1st line of case.inM, it is not what is in -fc (at least at the moment)</div><div><br></div>This might be something appropriate to change at some stage.</div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Nov 20, 2014 at 2:15 PM, Hu, Wenhao <span dir="ltr"><<a href="mailto:wenhao-hu@uiowa.edu" target="_blank">wenhao-hu@uiowa.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt">Hey, guys:
<div><br>
</div>
<div>I have a question about the MSR1a calculation. Earlier, I did a fix spin momentum calculation. As Peter mentioned, runfsm_lapw doesn't have a support for -min flag so that it won't stop according to the force convergence we gave it. But just due to this
issue, I achieved a extremely small force convergence(less than 0.0001 mRy/a.u.) after hundreds of cycles(it will run forever as long as I don't stop them). </div>
<div><br>
</div>
<div>And in the same case but using runsp_lapw, I used MSR1a mode and set the force convergence to 0.01 mRy/a.u. It will stop at around 1 mRy/a.u. after only 30 cycles. I'm confused about the stop criteria of runsp_lapw. <span style="font-size:10pt">I believe
it should be able to reach such a extremely small force convergence as well. However</span><span style="font-size:10pt"> it just stops before reaching the target convergence... </span></div>
<div><span style="font-size:10pt"><br>
</span></div>
<div><span style="font-size:10pt">Can anyone give me some ideas? I appreciate any comments and suggestions. </span><span style="font-size:10pt">If this is a case-by-case problem and more information is needed, I'll post my data later.</span></div>
<div><span style="font-size:10pt"><br>
</span></div>
<div><span style="font-size:10pt">thanks in advance.</span></div><span class="HOEnZb"><font color="#888888">
<div><span style="font-size:10pt">Wenhao </span></div>
</font></span></div>
</div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Professor Laurence Marks<br>Department of Materials Science and Engineering<br>Northwestern University<br><a href="http://www.numis.northwestern.edu" target="_blank">www.numis.northwestern.edu</a><div>Corrosion in 4D: <a href="http://MURI4D.numis.northwestern.edu" target="_blank">MURI4D.numis.northwestern.edu</a><br>Co-Editor, Acta Cryst A<br>"Research is to see what everybody else has seen, and to think what nobody else has thought"<br>Albert Szent-Gyorgi</div></div></div>
</div>