[CP2K-user] [CP2K:14373] What is CP2K periodicity settings by default without specification?

DMITRII Drugov dresear... at gmail.com
Sat Dec 12 09:31:41 UTC 2020


Thanks for reply! Do you think I just need to add the following to my input 
of geometry optimisation?
     &TOPOLOGY
        &CENTER_COORDINATES
        &END CENTER_COORDINATES
        COORD_FILE_NAME name.xyz
        COORD_FILE_FORMAT XYZ
      &END

I remember I always had this error with periodic None and poison wavelet:

 *** WARNING in pw/ps_wavelet_methods.F:236 :: Density non-zero on the ***
 *** edges of the unit cell: wrong results in WAVELET solver           ***

Do you know what if you avoid specification of periodicity type and poison 
algorithm, how CP2K consider you system?
I could optimised system my system with only cell dimension 30 30 30 A. I 
even didn't add Alpha Betta Gamma!
However, when I used same system with periodic None and poison wavelet, I 
got that "Density non-zero on the" error.

I am just wondering what I should add to periodic and poison section if I 
do ab initio NVT/NPT of bulk liquid system.

Thank you,
Dmitrii
On Friday, December 11, 2020 at 4:09:13 PM UTC+11 Lucas Lodeiro wrote:

> Hi Dmitrii,
> Remember that for non periodic calculations you have to set periodic none 
> in poisson and cell sections. Also, the density have to be zero at edges 
> for WAVELET solver, if not, the error
>
>  *** WARNING in pw/ps_wavelet_methods.F:236 :: Density non-zero on the ***
>  *** edges of the unit cell: wrong results in WAVELET solver           ***
>
> If you use a big cell (as yours, 30A it is a very big one, with 15A it is 
> well) you can converge it without problems. But you have to center 
> coordinates with &TOPOLOGY &CENTER_COORDINATES.
> ....
>     27 Broy./Diag. 0.40E+00    2.4     0.00000030      -333.3086580732 
> -1.34E-06
>     28 Broy./Diag. 0.40E+00    2.3     0.00000015      -333.3086567857 
>  1.29E-06
>     29 Broy./Diag. 0.40E+00    2.3     0.00000008      -333.3086557587 
>  1.03E-06
>
>
> Regards
> Lucas Lodeiro
>
> El jue, 10 dic 2020 a las 21:51, DMITRII Drugov (<dre... at gmail.com>) 
> escribió:
>
>> Good day dear CP2K users, I am doing simple organic molecule optimization 
>> like Gaussian but with CP2K. I need it for future Ead on slab calculation. 
>> I am curious how CP2K deal with periodicity in my case if I do not 
>> specify periodicity and poison solver here. I tried periodicity NONE and 
>> poison wavelet but my system couldn't converge. So, only when I avoid 
>> specification of periodicity and poison solver system converged without any 
>> problem.
>>
>> Thank you,
>> Dmitrii
>>
>> &GLOBAL
>>   PROJECT Na_2FSI_optimization_new 
>>   RUN_TYPE GEO_OPT
>>   PRINT_LEVEL MEDIUM
>> &END GLOBAL
>> &FORCE_EVAL
>>   METHOD QS
>>   &DFT
>>     BASIS_SET_FILE_NAME BASIS_MOLOPT
>>     POTENTIAL_FILE_NAME GTH_POTENTIALS
>>     CHARGE -1
>>     MULTIPLICITY 1
>>     &MGRID
>>       CUTOFF 800
>>       NGRIDS 5
>>       REL_CUTOFF 70
>>     &END MGRID
>>     &QS
>>       EPS_DEFAULT 1.0E-12
>>       WF_INTERPOLATION ASPC
>>     &END QS
>>    &SCF
>>       SCF_GUESS ATOMIC
>>       EPS_SCF 1.0E-7
>>       MAX_SCF 1000
>>       CHOLESKY INVERSE
>>       ADDED_MOS 50
>>       &SMEAR ON
>>         METHOD FERMI_DIRAC
>>         ELECTRONIC_TEMPERATURE [K] 300
>>       &END SMEAR
>>       &DIAGONALIZATION
>>         ALGORITHM STANDARD
>>       &END DIAGONALIZATION
>>       &MIXING
>>         METHOD BROYDEN_MIXING
>>         ALPHA 0.4         
>>         NBROYDEN 8
>>       &END MIXING
>>     &END SCF
>>     &XC
>>       &XC_FUNCTIONAL
>> &PBE
>> &END PBE
>>       &END XC_FUNCTIONAL
>>       &vdW_POTENTIAL
>>     DISPERSION_FUNCTIONAL PAIR_POTENTIAL
>>     &PAIR_POTENTIAL
>>         PARAMETER_FILE_NAME dftd3.dat
>>         TYPE DFTD3
>>         REFERENCE_FUNCTIONAL PBE
>>         R_CUTOFF 15.0
>>     &END PAIR_POTENTIAL
>>      &END vdW_POTENTIAL
>>     &END XC
>>   &END DFT
>>   &SUBSYS
>>     &CELL
>>       ABC 30.0 30.0 30.0
>>     &END CELL
>>     &COORD
>>       O          3.875784    2.333214    1.212007
>>       O          4.047601   -1.211041   -2.231536
>>       N          3.859440    0.441161   -0.391139
>>       S          3.259060   -0.860789   -1.079536
>>       S          3.157056    1.138791    0.853627
>>       O          1.802534   -0.898489   -1.184401
>>       O          1.697555    1.182343    0.806192
>>       F          3.560807   -2.011303    0.011361
>>       F          3.436815    0.094298    2.052145
>>       O         -3.799998   -2.403884    1.112667
>>       O         -4.081076    1.270667   -2.184808
>>       N         -3.847626   -0.446220   -0.410714
>>       S         -3.258061    0.874137   -1.072693
>>       S         -3.150360   -1.150156    0.833473
>>       O         -1.805893    0.900768   -1.228617
>>       O         -1.690819   -1.090558    0.850150
>>       F         -3.507804    1.989537    0.068377
>>       F         -3.553757   -0.181601    2.059004
>>       Na         0.000375    0.029194   -0.170563
>>     &END COORD
>>     &KIND F
>>       BASIS_SET TZVP-MOLOPT-GTH 
>>       POTENTIAL GTH-PBE-q7
>>     &END KIND
>>     &KIND O
>>       BASIS_SET TZVP-MOLOPT-GTH
>>       POTENTIAL GTH-PBE-q6
>>     &END KIND
>>     &KIND C
>>       BASIS_SET TZVP-MOLOPT-GTH
>>       POTENTIAL GTH-PBE-q4
>>     &END KIND
>>     &KIND S
>>       BASIS_SET TZVP-MOLOPT-GTH
>>       POTENTIAL GTH-PBE-q6
>>     &END KIND
>>     &KIND N
>>       BASIS_SET TZVP-MOLOPT-GTH
>>       POTENTIAL GTH-PBE-q5
>>     &END KIND
>>     &KIND Na
>>       BASIS_SET DZVP-MOLOPT-SR-GTH
>>       POTENTIAL GTH-PBE-q9
>>     &END KIND
>>    &END SUBSYS
>> &END FORCE_EVAL
>> &MOTION
>>   &GEO_OPT
>>   OPTIMIZER LBFGS
>>   MAX_ITER 300
>>   &END GEO_OPT
>>   &END MOTION
>>     
>> !&EXT_RESTART
>>
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