[Pw_forum] Original Symmetry Operations Not Satisfied

Giuseppe Mattioli giuseppe.mattioli at ism.cnr.it
Thu Dec 4 10:26:09 CET 2014


Dear Sai

> I have *tried* to center the surface at the origin of my simulation

Why? You don't need it...

> The surface was created in Materials Studio. Xcrysden does not
> orient the surface to the center of the supercell.
> I have attached a picture of the structure using Discovery Studio.

And this is the image of your system seen from above, including its periodically replicated images along the x and y directions, as obtained by 
opening your input file with xcrysden. As you can see, even if your unit cell may be correct, it is not correctly inserted in a supercell: there are 
mismatches and gaps in you periodic boundary conditions, and I suppose that pw.x stops and complains because of them.
HTH 

Giuseppe

On Wednesday, December 03, 2014 09:19:19 AM Sai Kumar Ramadugu wrote:
> Dear Giuseppe,
> 
> The structure of the clay I have in the input file is a (110) surface of Fe
> containing clay with 2:1 ration of tetrahedral sheet to octahedral sheet.
> I have *tried* to center the surface at the origin of my simulation
> supercell. The surface was created in Materials Studio. Xcrysden does not
> orient the surface to the center of the supercell.
> I have attached a picture of the structure using Discovery Studio.
> 
> If the attached structure is reasonable (I think it is!), is there any
> other place in the input file that I should look into to solve this problem?
> Please let me know!
> 
> Thanks again,
> Sai
> 
> PS: Sorry if this is duplicate, the original message was larger than 200kB.
> So shortened the size of the figure.
> ---
> Sai Ramadugu
> Post-Doctoral Scholar
> University of Iowa
> 
> On Tue, Dec 2, 2014 at 5:10 PM, Giuseppe Mattioli <
> 
> giuseppe.mattioli at ism.cnr.it> wrote:
> > Dear Sai
> > I've opened your input file with xcrysden. I do not know the structure
> > of your clay, but the structure contained in your file is *very*
> > strange, and I doubt it is what you are tryng to simulate... Check the
> > atom positions first of all!
> > HTH
> > Giuseppe
> > 
> > Giuseppe Mattioli
> > ISM-CNR
> > Italy
> > 
> > Quoting Sai Kumar Ramadugu <sramadugu at gmail.com>:
> > > Dear All,
> > > 
> > > I performing a relaxation of a monoclinic surface supercell of clay
> > 
> > mineral.
> > 
> > > The system has Fe, Si, O, H atoms and I am using Hubbard U for Fe atom
> > 
> > and
> > 
> > > according a previous paper (JPCC 2013, 117, 22800) I am using
> > 
> > ferromagnetic
> > 
> > > ordering for Fe. The supercell has 116 atoms. After the first
> > 
> > optimization
> > 
> > > cycle, there are NAN for forces and atomic coordinates and the job quits
> > > with "some of the original symmetry operations not satisfied" message. I
> > > read some of the previous threads on this but even after using
> > 
> > nosym=true,
> > 
> > > I cannot prevent this outcome. I am using QE v. 5.1, USPP.
> > > Here is my input file:
> > > 
> > > &CONTROL
> > > 
> > >   pseudo_dir = '/import/u/u1/uaf/uasramadugu1/pseudo',
> > >   calculation  = 'relax',
> > >   prefix = 'nga1',
> > >   outdir = './tmp/',
> > >   restart_mode = 'restart',
> > > 
> > > /
> > > &SYSTEM
> > > 
> > >   ibrav = 0,
> > >   nat = 116,
> > >   ntyp = 4,
> > >   ecutwfc = 40,
> > >   ecutrho = 320,
> > >   occupations = 'smearing',
> > >   smearing = 'mv',
> > >   degauss = 0.02,
> > >   nspin = 2,
> > >   starting_magnetization(4) = 0.5,
> > >   lda_plus_u = .TRUE.
> > >   Hubbard_U(4) = 4.0,
> > >   nosym = .TRUE.
> > > 
> > > /
> > > &ELECTRONS
> > > 
> > >   conv_thr = 1.D-7,
> > >   mixing_beta = 0.20D0,
> > >   electron_maxstep = 200,
> > > 
> > > /
> > > &IONS
> > > /
> > > ATOMIC_SPECIES
> > > Si  1.00  Si.pbe-n-rrkjus_psl.0.1.UPF
> > > O   1.00  O.pbe-rrkjus.UPF
> > > H   1.00  H.pbe-rrkjus_psl.0.1.UPF
> > > Fe  1.00  Fe.pbe-nd-rrkjus.UPF
> > > CELL_PARAMETERS {bohr}
> > > 18.4815288646   0               0
> > > -3.8055093495   39.4697757527   0
> > > 0.0             0              81.1208726003
> > > K_POINTS {automatic}
> > > 2 1 1 1 1 1
> > > ATOMIC_POSITIONS {Angstrom}
> > > Si    3.244236583   -0.172014720   -1.094825338
> > > Si    2.228369492    2.411697260    3.448017655
> > > O     2.736303038    5.113595723   -1.094825338
> > > O     2.736303038   -2.873913184    3.448017655
> > > O    -2.981392825    0.184537563   -0.467912953
> > > O    -3.997259916    2.768249543    4.074930040
> > > O    -2.473459279   -5.101072881   -0.467912953
> > > Si   -3.489326371   -2.517360901    4.074930040
> > > Si   -1.970779189   -5.092209359   -3.448018036
> > > O    -2.981392825   -2.563165356    1.094824954
> > > O    -2.473459279    0.138733107   -3.448018038
> > > O    -3.489326371    2.722445087    1.094824954
> > > O     3.244236583    5.067791268   -4.074930424
> > > O     3.244236583   -2.919717639    0.467912569
> > > Si    3.752170129   -0.217819176   -4.074930424
> > > Si    2.736303038    2.365892804    0.467912569
> > > O     1.484554833   -0.225310670   -1.467338541
> > > O     0.468687742    2.358401311    3.075504451
> > > O     0.976621287    5.060299774   -1.467338541
> > > O     0.976621287   -2.927209133    3.075504451
> > > O    -0.205843983   -2.106252953   -4.774528173
> > > Si   -1.221711074    0.477459027   -0.231685180
> > > Si   -2.237578166    3.061171007    4.311157813
> > > O    -0.713777529    3.179357491   -4.774528173
> > > O    -0.713777529   -4.808151417   -0.231685180
> > > O    -1.729644620   -2.224439436    4.311157813
> > > O    -0.205843983   -5.093581387   -3.075504835
> > > O    -1.221711074   -2.509869407    1.467338158
> > > Si   -0.713777529    0.192029056   -3.075504835
> > > Si   -1.729644620    2.775741037    1.467338158
> > > O     1.484554833    4.774869803   -4.311158196
> > > O     1.484554833   -3.212639104    0.231684797
> > > O     0.468687742   -0.628927124    4.774527789
> > > O     1.992488379   -0.510740641   -4.311158196
> > > O     0.976621287    2.072971340    0.231684797
> > > Si   -0.039245804    4.656683320    4.774527789
> > > Si    3.634300016    6.536830035   -4.592814486
> > > O     3.629046564   -1.396010889   -0.049971498
> > > O     2.613179472    1.187701091    4.492871495
> > > O     4.136980109    1.305887574   -4.592814491
> > > O     3.121113018    3.889599555   -0.049971498
> > > O     3.121113018   -4.097909353    4.492871495
> > > Si   -2.350335714   -3.922881168   -4.492871878
> > > Si   -3.366202805   -1.339169188    0.049971115
> > > O    -4.382069896    1.244542793    4.592814107
> > > O    -2.858269259    1.362729276   -4.492871878
> > > O    -3.874136351    3.946441256    0.049971115
> > > O    -3.874136351   -4.041067651    4.592814107
> > > O     4.179848986    3.963518711   -4.919899104
> > > Si    4.179848986   -4.023990196   -0.377056111
> > > Si    3.163981894   -1.440278216    4.165786881
> > > O     4.687782531   -1.322091733   -4.919899104
> > > O     3.671915440    1.261620248   -0.377056111
> > > O     2.656048349    3.845332228    4.165786881
> > > O    -2.901138136   -4.985131076   -2.066993745
> > > O    -3.917005227   -2.401419096    2.475849247
> > > O    -3.409071682    0.300479368   -2.066993745
> > > O    -4.424938773    2.884191348    2.475849247
> > > O    -2.901138136   -1.294901861   -4.165787265
> > > H    -3.917005227    1.288810119    0.377055728
> > > H    -4.932872319    3.872522099    4.919898721
> > > O    -2.398458040   -6.525844328   -4.165787266
> > > O    -3.409071682   -3.996800325    0.377055728
> > > O    -4.424938773   -1.413088344    4.919898721
> > > H     4.179848986   -0.333760981   -2.475849631
> > > H     3.163981894    2.249950999    2.066993362
> > > O     3.671915440    4.951849462   -2.475849631
> > > O     3.671915440   -3.035659445    2.066993362
> > > O     1.452047081    2.357458364   -2.743877369
> > > H     0.436179989    4.941170344    1.798965624
> > > H     1.959980626   -2.928152080   -2.743877369
> > > O     0.944113535   -0.344440100    1.798965624
> > > O    -1.189203322    2.894870467   -1.798966007
> > > O    -1.189203322   -5.092638441    2.743876985
> > > H    -0.681269776   -2.390739977   -1.798966007
> > > H    -1.697136868    0.192972003    2.743876985
> > > O    -0.665406237   -1.837117046   -0.825551760
> > > O    -1.681273329    0.746594934    3.717291232
> > > O    -1.173339783    3.448493397   -0.825551760
> > > O    -1.173339783   -4.539015510    3.717291232
> > > O     1.944117087   -3.481775011   -3.717291616
> > > O     0.928249996   -0.898063030    0.825551377
> > > O     1.436183541    1.803835433   -3.717291616
> > > O     0.420316450    4.387547413    0.825551377
> > > Fe    0.639355425   -3.993359982   -1.512766928
> > > Fe   -0.376511666   -1.409648002    3.030076065
> > > Fe    0.131421879    1.292250462   -1.512766928
> > > Fe   -0.884445212    3.875962442    3.030076065
> > > Fe    0.639355425   -1.325532075   -3.030076448
> > > Fe   -0.376511666    1.258179905    1.512766544
> > > Fe    0.131421879    3.960078369   -3.030076448
> > > Fe    0.131421879   -4.027430539    1.512766544
> > > H    -0.330486013   -1.370310935    4.983743911
> > > H    -0.380473528    0.085683105    4.755623060
> > > H    -0.658084122    5.576125416    4.713164954
> > > H    -0.652159651    3.742806044    4.628702666
> > > H    -4.427569708    3.782916231    5.904144710
> > > H    -3.602562722    1.472178451    5.349550961
> > > H    -3.633502006   -1.231158556    5.676621530
> > > H    -3.230548684   -3.888975775    5.484308909
> > > H     2.080475062    3.564355425    5.072355961
> > > H     1.955333207    0.980964115    5.362698017
> > > H     2.538530040   -1.610432101    5.066873837
> > > H     2.397170127   -4.136241468    5.333429287
> > > H     0.205066887    2.556899870   -4.755254151
> > > H     0.516960094   -2.927561392   -4.587160198
> > > H     0.654975044   -1.407396893   -4.826401650
> > > H    -0.023070297    4.048169258   -4.788300904
> > > H    -1.517074941   -3.838757062   -5.221363272
> > > H    -1.486326426   -6.574176125   -4.796485322
> > > H    -2.091934330    1.505338311   -5.283120860
> > > H    -2.257230613   -1.219591574   -5.066793073
> > > H     3.859525324   -1.289248815   -5.658147957
> > > H     3.530413611    1.325355867   -5.522221885
> > > H     3.397463119    4.028877693   -5.704565012
> > > H     3.132772235    6.610409095   -5.580314384
> > > -----
> > 
> > > The crash file writes the following:
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > 
> > >      task #         0
> > >      from checkallsym : error #         1
> > >      some of the original symmetry operations not satisfied
> > 
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > 
> > > Any suggestions could be of great help.
> > > 
> > > Thanks for your time in advance.
> > > 
> > > Regards
> > > Sai
> > > 
> > > -------------
> > > Sai Ramadugu
> > > Post-Doctoral Scholar,
> > > Department of Chemistry,
> > > University of Iowa.
> > 
> > --
> > ********************************************************
> > - Article premier - Les hommes naissent et demeurent
> > libres et ègaux en droits. Les distinctions sociales
> > ne peuvent être fondèes que sur l'utilitè commune
> > - Article 2 - Le but de toute association politique
> > est la conservation des droits naturels et
> > imprescriptibles de l'homme. Ces droits sont la libertè,
> > la propriètè, la sùretè et la rèsistance à l'oppression.
> > ********************************************************
> > 
> >     Giuseppe Mattioli
> >     CNR - ISTITUTO DI STRUTTURA DELLA MATERIA
> >     v. Salaria Km 29,300 - C.P. 10
> >     I 00015 - Monterotondo Stazione (RM)
> >     Tel + 39 06 90672836 - Fax +39 06 90672316
> >     E-mail: <giuseppe.mattioli at ism.cnr.it>
> > 
> > _______________________________________________
> > Pw_forum mailing list
> > Pw_forum at pwscf.org
> > http://pwscf.org/mailman/listinfo/pw_forum

********************************************************
- Article premier - Les hommes naissent et demeurent
libres et ègaux en droits. Les distinctions sociales
ne peuvent être fondèes que sur l'utilitè commune
- Article 2 - Le but de toute association politique
est la conservation des droits naturels et 
imprescriptibles de l'homme. Ces droits sont la libertè,
la propriètè, la sùretè et la rèsistance à l'oppression.
********************************************************

   Giuseppe Mattioli                            
   CNR - ISTITUTO DI STRUTTURA DELLA MATERIA   
   v. Salaria Km 29,300 - C.P. 10                
   I 00015 - Monterotondo Stazione (RM)          
   Tel + 39 06 90672836 - Fax +39 06 90672316    
   E-mail: <giuseppe.mattioli at ism.cnr.it>
   http://www.ism.cnr.it/english/staff/mattiolig
   ResearcherID: F-6308-2012
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