<div>Ah!!! I found that problem myself just a few minutes ago too. Sorry about that! I should seriously be more careful when doing research. However, I did learn a lot about min_lapw and I would expect I can handle when a real error happened in the future.
</div>
<div> </div>
<div>Thanks very much again for EVERYONE who gave me great help <font face="Trebuchet MS" size="2">without reserve!!! Thank you so much!</font></div>
<div><font face="Trebuchet MS" size="2"></font> </div>
<div>Best Wishes!</div>
<div>Sincerely yours,</div>
<div>Bo Qiu</div>
<div><br><br> </div>
<div><span class="gmail_quote">On 10/14/07, <b class="gmail_sendername">Peter Blaha</b> <<a href="mailto:pblaha@theochem.tuwien.ac.at">pblaha@theochem.tuwien.ac.at</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Your lattice parameters are wrong !<br>c must be different from a,b !!!!<br><br>> Lattice constant:<br>
> a 8.682 bohr, b 8.682 bohr, c 8.682 bohr<br>> alpha = beta = gamma = 90 degree<br>><br>> Atom one : Ti Z=22 RMT = 1.74<br>> Pos 1: x= 0 y= 0 z=0<br>> Pos 2: x=0.5 y=0.5 z=
0.5<br>><br>> Atom two : O Z=8.0 RMT=1.54<br>> Pos 1: x=0.27875333 y=0.27875333 z=0<br>> Pos 2: x=0.72124667 y=0.72124667 z=0<br>> Pos 3: x=0.22124667 y=0.77875333 z=
0.5<br>> Pos 4: x=0.77875333 y=0.22124667 z=0.5<br>><br>> Above is what I got for the optimized lattice parameters. However, as<br>> introduced in the userguide,<br>><br>> "The final structural parameter of the O-atom should be close to
<br>> x=0.304, which compares well with<br>> the experimental x=0.305."<br>><br>> Seems that there is still difference between what I got and the truth<br>> althought my calculations seemed to work. Could you please help me with
<br>> this? Thanks a lot!!!<br>><br>> The last few lines of ENE and FGL in the *mini file are:<br>><br>> :ENE : ********** TOTAL ENERGY IN Ry =<br>> -4017.481807<br>> :ENE : ********** TOTAL ENERGY IN Ry =
<br>> -4017.485916<br>> :ENE : ********** TOTAL ENERGY IN Ry = -4017.486922<br>><br>> :ENE : ********** TOTAL ENERGY IN Ry = -4017.487856<br>><br>> :FGL001: 1.ATOM 0.000000000
0.000000000<br>> 0.000000000 t<br>> :FGL002: 2.ATOM -13.829594058 -13.829594058<br>> 0.000000000 t<br>> :FGL001: 1.ATOM 0.000000000 0.000000000<br>> 0.000000000 t
<br>> :FGL002: 2.ATOM -16.184259577 -16.184259577<br>> 0.000000000 t<br>> :FGL001: 1.ATOM 0.000000000 0.000000000<br>> 0.000000000 t<br>> :FGL002: 2.ATOM
9.458260054 9.458260054<br>> 0.000000000 t<br>> :FGL001: 1.ATOM 0.000000000 0.000000000<br>> 0.000000000 t<br>> :FGL002: 2.ATOM -0.734683926 -0.734683926<br>> 0.000000000
t<br>><br>> Best Wishes,<br>> Sincerely yours,<br>> Bo Qiu<br>><br>><br>><br>> On 10/14/07, *Laurence Marks* <<a href="mailto:L-marks@northwestern.edu">L-marks@northwestern.edu</a><br>> <mailto:
<a href="mailto:L-marks@northwestern.edu">L-marks@northwestern.edu</a>>> wrote:<br>><br>> Ignore the warning. It is better to use setrmt to adjust the RMT's for<br>> you until you are more familiar with how the code works.
<br>><br>> On 10/14/07, Bo Qiu <<a href="mailto:200210qb@gmail.com">200210qb@gmail.com</a> <mailto:<a href="mailto:200210qb@gmail.com">200210qb@gmail.com</a>>><br>> wrote:<br>> > Thanks very much for your reply!
<br>> ><br>> > The structure file I'm using is exactly the same as that one in the<br>> > userguide:<br>> ><br>> > TiO2:<br>> > Lattice :<br>> > Spacegroup : 136_P42/mnm_
<br>> ><br>> > Splitting of equivalent positions not available.<br>> > To split you must select a lattice type <--why? I thought the<br>> > equivalent ones have already been splitted.
<br>> ><br>> > Lattice constant:<br>> > a 8.682 bohr, b 8.682 bohr, c 8.682 bohr<br>> > alpha = beta = gamma = 90 degree<br>> ><br>> > Atom one : Ti Z=22 RMT =
2.00<br>> > Pos 1: x= 0 y= 0 z=0<br>> > Pos 2: x=0.5 y=0.5 z=0.5<br>> ><br>> > Atom two : O Z=8.0 RMT=1.6<br>> > Pos 1: x=0.3 y=0.3
z=0<br>> > Pos 2: x=0.7 y=0.7 z=0<br>> > Pos 3: x=0.2 y=0.8 z=0.5<br>> > Pos 4: x=0.8 y=0.2 z=0.5<br>> ><br>> > After I saved the structure, I didn't press
<br>> > "set automatically RMT and continue editing" because I want to<br>> follow the<br>> > RMT value in the userguide. Then I cleaned up and initialize the<br>> calculation
<br>> > and so on... that's what I have done.<br>> ><br>> > I followed your suggestions and reduced the RMT : Ti : from<br>> 2.0--> 1.8<br>> > O: from 1.6-->
1.5, however, when I initialize the calculation<br>> and right<br>> > after the "x lstart" step, there is a warning saying:<br>> ><br>> > WARNING !!!! For good atomic total energies you
<br>> > Check try.outputst for which atom/states the core-leakage occurs<br>> and rerun<br>> > lstart with lower core-seperation energy (or increase RMT)<br>> ><br>> > Should I increase the RMT again? Thanks a lot again!!!
<br>> ><br>> > Best Wishes!<br>> > Sincerely yours,<br>> ><br>> > Bo Qiu<br>> ><br>> ><br>> > On 10/14/07, Laurence Marks <<a href="mailto:L-marks@northwestern.edu">
L-marks@northwestern.edu</a><br>> <mailto:<a href="mailto:L-marks@northwestern.edu">L-marks@northwestern.edu</a>>> wrote:<br>> > > Too large RMT (not too small, a typo). Either give a larger<br>
> reduction<br>> > > when using "setrmt" in the initialization or copy a file with<br>> smaller<br>> > > RMT's to TiO2.struct_new, use x clminter, then copy<br>>
TiO2.struct_new to<br>> > > TiO2.struct (and similarly for TiO2.clmsum_new to TiO2.clmsum) are<br>> > > rerun.<br>> > ><br>> > > On 10/14/07, <a href="mailto:jiang@fhi-berlin.mpg.de">
jiang@fhi-berlin.mpg.de</a><br>> <mailto:<a href="mailto:jiang@fhi-berlin.mpg.de">jiang@fhi-berlin.mpg.de</a>> <<a href="mailto:jiang@fhi-berlin.mpg.de">jiang@fhi-berlin.mpg.de</a><br>> <mailto:<a href="mailto:jiang@fhi-berlin.mpg.de">
jiang@fhi-berlin.mpg.de</a>>> wrote:<br>> > > > Hi Bo,<br>> > > > I think the problem in your calculations is probably caused<br>> by too small<br>> > RMT<br>> > > > values in the struct file. The muffin-tin spheres should
<br>> never overlap<br>> > > > when you optimize the structure. Try reducing RMT value a<br>> little bit to<br>> > > > see what happens.<br>> > > ><br>> > > > Good luck!
<br>> > > ><br>> > > > Hong<br>> > > ><br>> > > > > Dear Wien2k users and developers,<br>> > > > ><br>> > > > > I'm a new user and I've been struggling with this problem
<br>> and find no<br>> > way<br>> > > > > out for several days and I'm really in despair. I sincerely<br>> request<br>> > for<br>> > > > > your
<br>> > > > > help as my last hope, thanks a lot!<br>> > > > ><br>> > > > > The problem is that:<br>> > > > > When I'm trying to do the optimization with the example
<br>> TiO2 and try<br>> > to<br>> > > > > optimize its atomic positions using min_lapw. Firstly I<br>> tried to<br>> > follow<br>> > > > > the<br>
> > > > > userguide in ch 10.3 exactly using w2web, and run scf<br>> first. As<br>> > pointed in<br>> > > > > the userguide, the last force was a jump. Then I proceeded
<br>> to mini<br>> > > > > positions, however, first of all, before every min_lapw<br>> round there is<br>> > a<br>> > > > > warning saying:<br>> > > > >
<br>> > > > > WARNING: Step size reduced due to overlapping spheres --<br>> check RMT<br>> > > > ><br>> > > > > after several (around 10) rounds, PORT crashed:
<br>> > > > ><br>> > > > >>> (mini) PORT stopped -> exit<br>> > > > > :WARNING you might have inconsistent Forces/Energies<br>> > > > >
<br>> > > > > The last few lines on FGL002 inside *mini are (FGL001 is<br>> alway zero):<br>> > > > ><br>> > > > > :FGL002: 2.ATOM - 45.621114095
-45.621114095<br>> > > > > 0.000000000 t<br>> > > > > :FGL002: 2.ATOM -45.586465863 -45.586465863<br>> > > > > 0.000000000 t<br>> > > > > :FGL002:
2.ATOM -45.575859262 -45.575859262<br>> > > > > 0.000000000 t<br>> > > > ><br>> > > > > Then I removed case.tmpM and modified case.inM as<br>> > > > >
<br>> > > > > NEW1 2.0 0.35 # PORT/NEWT; tolf, Initial Trust Radius<br>> > > > > 0.0 0.0 0.0 1.0 #Atom 1 Generated by pairhess<br>> > > > > 1.0 1.0 0.0
1.0 #Atom 2 Generated by pairhess<br>> > > > ><br>> > > > > Then rerun min_lapw using w2web<br>> > > > ><br>> > > > > however, this time, in the first round, after 4 cycles I
<br>> get it<br>> > > > > crashed with NN -Error:<br>> > > > ><br>> > > > > in cycle 4 ETEST: 0 CTEST: 0<br>> > > > > LAPW0 END<br>
> > > > > LAPW1 END<br>> > > > > LAPW2 END<br>> > > > > CORE END<br>> > > > > MIXER END<br>> > > > > ec cc and fc_conv 1 1 1
<br>> > > > ><br>> > > > >> stop<br>> > > > > NN - Error<br>> > > > ><br>> > > > > The version used: Wien2k_07, compiler ifort, mkl
9.1, in<br>> series mode<br>> > > > ><br>> > > > > Could you please help me? Thank you very much!!! If any more<br>> > information<br>> > > > > needed, please let me know, thanks!
<br>> > > > ><br>> > > > > --<br>> > > > > Thanks and Best Wishes.<br>> > > > ><br>> > > > > Sincerely yours,<br>> > > > > Bo Qiu
<br>> > > > ><br>> > > > > <a href="http://web.ics.purdue.edu/~qiub/">http://web.ics.purdue.edu/~qiub/</a><br>> > <<a href="http://web.ics.purdue.edu/%7Eqiub/">http://web.ics.purdue.edu/%7Eqiub/
</a> ><br>> > > > > _______________________________________________<br>> > > > > Wien mailing list<br>> > > > > <a href="mailto:Wien@zeus.theochem.tuwien.ac.at">
Wien@zeus.theochem.tuwien.ac.at</a><br>> <mailto:<a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a>><br>> > > > ><br>> > <a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien">
http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien</a><br>> > > > ><br>> > > ><br>> > > > _______________________________________________<br>> > > > Wien mailing list
<br>> > > > <a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a><br>> <mailto:<a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a>
><br>> > > > <a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien">http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien</a><br>> > > ><br>> > ><br>> > >
<br>> > > --<br>> > > Laurence Marks<br>> > > Department of Materials Science and Engineering<br>> > > MSE Rm 2036 Cook Hall<br>> > > 2220 N Campus Drive
<br>> > > Northwestern University<br>> > > Evanston, IL 60208, USA<br>> > > Tel: (847) 491-3996 Fax: (847) 491-7820<br>> > > email: L-marks at northwestern dot edu<br>
> > > Web: <a href="http://www.numis.northwestern.edu">www.numis.northwestern.edu</a> <<a href="http://www.numis.northwestern.edu">http://www.numis.northwestern.edu</a>><br>> > > Commission on Electron Diffraction of IUCR
<br>> > > <a href="http://www.numis.northwestern.edu/IUCR_CED">www.numis.northwestern.edu/IUCR_CED</a><br>> <<a href="http://www.numis.northwestern.edu/IUCR_CED">http://www.numis.northwestern.edu/IUCR_CED
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</a><br>> <mailto:<a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a>><br>> > > <a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien">http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
</a><br>> > ><br>> ><br>> ><br>> ><br>> > _______________________________________________<br>> > Wien mailing list<br>> > <a href="mailto:Wien@zeus.theochem.tuwien.ac.at">
Wien@zeus.theochem.tuwien.ac.at</a><br>> <mailto:<a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a>><br>> > <a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien">
http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien</a><br>> ><br>> ><br>><br>><br>> --<br>> Laurence Marks<br>> Department of Materials Science and Engineering<br>> MSE Rm 2036 Cook Hall
<br>> 2220 N Campus Drive<br>> Northwestern University<br>> Evanston, IL 60208, USA<br>> Tel: (847) 491-3996 Fax: (847) 491-7820<br>> email: L-marks at northwestern dot edu<br>> Web:
<a href="http://www.numis.northwestern.edu">www.numis.northwestern.edu</a> <<a href="http://www.numis.northwestern.edu">http://www.numis.northwestern.edu</a>><br>> Commission on Electron Diffraction of IUCR<br>
> <a href="http://www.numis.northwestern.edu/IUCR_CED">www.numis.northwestern.edu/IUCR_CED</a><br>> <<a href="http://www.numis.northwestern.edu/IUCR_CED">http://www.numis.northwestern.edu/IUCR_CED</a>>
<br>> _______________________________________________<br>> Wien mailing list<br>> <a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a> <mailto:<a href="mailto:Wien@zeus.theochem.tuwien.ac.at">
Wien@zeus.theochem.tuwien.ac.at</a>><br>> <a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien">http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien</a><br>><br>><br>><br>><br>> --<br>
> Thanks and Best Wishes.<br>><br>> Sincerely yours,<br>> Bo Qiu<br>> <a href="http://web.ics.purdue.edu/~qiub/">http://web.ics.purdue.edu/~qiub/</a> <<a href="http://web.ics.purdue.edu/~qiub/">http://web.ics.purdue.edu/~qiub/
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</a><br></blockquote></div><br><br clear="all"><br>-- <br>Thanks and Best Wishes.<br><br>Sincerely yours,<br>Bo Qiu<br><a href="http://web.ics.purdue.edu/~qiub/">http://web.ics.purdue.edu/~qiub/</a>