[CP2K-user] [CP2K:20655] DIIS does not turn on

bartosz mazur bamaz.97 at gmail.com
Tue Sep 3 13:16:54 UTC 2024


Hi, 

I have encountered a rather frustrating issue where DIIS does not 
automatically turn on when the desired convergence is reached (in step 7). 
After installing CP2K 2024.1, I tried to run AIMD simulation, which with 
CP2K 8.1 the same input ran without issue. I used exactly the same input 
file.

An example of a SCF loop with CP2K 2024.1: 

```

SCF WAVEFUNCTION OPTIMIZATION


  Step     Update method      Time    Convergence         Total energy    
Change

  
------------------------------------------------------------------------------

     1 P_Mix/Diag. 0.40E+00    1.1     1.91814519     -1188.7970620307 
-1.19E+03

     2 P_Mix/Diag. 0.40E+00    1.3     0.98986197     -1189.4701518001 
-6.73E-01

     3 P_Mix/Diag. 0.40E+00    1.3     0.60073380     -1189.6945238284 
-2.24E-01

     4 P_Mix/Diag. 0.40E+00    1.3     0.35995489     -1189.7984103823 
-1.04E-01

     5 P_Mix/Diag. 0.40E+00    1.3     0.21792231     -1189.8550833041 
-5.67E-02

     6 P_Mix/Diag. 0.40E+00    1.3     0.13135123     -1189.8888159329 
-3.37E-02

     7 P_Mix/Diag. 0.40E+00    1.2     0.07862649     -1189.9096517910 
-2.08E-02

     8 P_Mix/Diag. 0.40E+00    1.3     0.04836807     -1189.9227497558 
-1.31E-02

     9 P_Mix/Diag. 0.40E+00    1.3     0.02784877     -1189.9310560584 
-8.31E-03

    10 P_Mix/Diag. 0.40E+00    1.3     0.01987283     -1189.9363608679 
-5.30E-03

    11 P_Mix/Diag. 0.40E+00    1.2     0.01731675     -1189.9397735353 
-3.41E-03

    12 P_Mix/Diag. 0.40E+00    1.2     0.01637086     -1189.9419886052 
-2.22E-03

    13 P_Mix/Diag. 0.40E+00    1.3     0.01481834     -1189.9434418027 
-1.45E-03

    14 P_Mix/Diag. 0.40E+00    1.2     0.01359559     -1189.9444078396 
-9.66E-04

    15 P_Mix/Diag. 0.40E+00    1.2     0.01250982     -1189.9450595353 
-6.52E-04

    16 P_Mix/Diag. 0.40E+00    1.3     0.01131989     -1189.9455068204 
-4.47E-04

    17 P_Mix/Diag. 0.40E+00    1.3     0.01044539     -1189.9458192127 
-3.12E-04

    18 P_Mix/Diag. 0.40E+00    1.3     0.00944876     -1189.9460416382 
-2.22E-04

    19 P_Mix/Diag. 0.40E+00    1.3     0.00864908     -1189.9462028251 
-1.61E-04

    20 P_Mix/Diag. 0.40E+00    1.2     0.00781462     -1189.9463218009 
-1.19E-04

    21 P_Mix/Diag. 0.40E+00    1.2     0.00711763     -1189.9464109666 
-8.92E-05

    22 P_Mix/Diag. 0.40E+00    1.2     0.00642320     -1189.9464788152 
-6.78E-05

    23 P_Mix/Diag. 0.40E+00    1.2     0.00583103     -1189.9465310355 
-5.22E-05

    24 P_Mix/Diag. 0.40E+00    1.2     0.00525700     -1189.9465716811 
-4.06E-05

    25 P_Mix/Diag. 0.40E+00    1.2     0.00476147     -1189.9466035603 
-3.19E-05

    26 P_Mix/Diag. 0.40E+00    1.2     0.00428966     -1189.9466287561 
-2.52E-05

    27 P_Mix/Diag. 0.40E+00    1.2     0.00387902     -1189.9466487632 
-2.00E-05

    28 P_Mix/Diag. 0.40E+00    1.2     0.00349293     -1189.9466647295 
-1.60E-05

    29 P_Mix/Diag. 0.40E+00    1.2     0.00315667     -1189.9466775054 
-1.28E-05

    30 P_Mix/Diag. 0.40E+00    1.2     0.00284386     -1189.9466877608 
-1.03E-05

    31 P_Mix/Diag. 0.40E+00    1.2     0.00256866     -1189.9466960047 
-8.24E-06

    32 P_Mix/Diag. 0.40E+00    1.2     0.00231413     -1189.9467026450 
-6.64E-06

    33 P_Mix/Diag. 0.40E+00    1.2     0.00208933     -1189.9467079975 
-5.35E-06

    34 P_Mix/Diag. 0.40E+00    1.2     0.00188255     -1189.9467123173 
-4.32E-06

    35 P_Mix/Diag. 0.40E+00    1.2     0.00169934     -1189.9467158048 
-3.49E-06

    36 P_Mix/Diag. 0.40E+00    1.2     0.00153154     -1189.9467186227 
-2.82E-06

    37 P_Mix/Diag. 0.40E+00    1.2     0.00138247     -1189.9467208997 
-2.28E-06

    38 P_Mix/Diag. 0.40E+00    1.2     0.00124641     -1189.9467227406 
-1.84E-06

    39 P_Mix/Diag. 0.40E+00    1.3     0.00112525     -1189.9467242291 
-1.49E-06

    40 P_Mix/Diag. 0.40E+00    1.2     0.00101498     -1189.9467254329 
-1.20E-06

    41 P_Mix/Diag. 0.40E+00    1.2     0.00091660     -1189.9467264065 
-9.74E-07

    42 P_Mix/Diag. 0.40E+00    1.2     0.00082725     -1189.9467271941 
-7.88E-07

    43 P_Mix/Diag. 0.40E+00    1.3     0.00074740     -1189.9467278312 
-6.37E-07

    44 P_Mix/Diag. 0.40E+00    1.2     0.00067501     -1189.9467283467 
-5.15E-07

    45 P_Mix/Diag. 0.40E+00    1.2     0.00061024     -1189.9467287637 
-4.17E-07

    46 P_Mix/Diag. 0.40E+00    1.2     0.00055159     -1189.9467291011 
-3.37E-07

    47 P_Mix/Diag. 0.40E+00    1.2     0.00049905     -1189.9467293741 
-2.73E-07

    48 P_Mix/Diag. 0.40E+00    1.2     0.00045153     -1189.9467295950 
-2.21E-07

    49 P_Mix/Diag. 0.40E+00    1.2     0.00040891     -1189.9467297738 
-1.79E-07

    50 P_Mix/Diag. 0.40E+00    1.2     0.00037040     -1189.9467299184 
-1.45E-07


  Leaving inner SCF loop after reaching    50 steps.



  Electronic density on regular grids:       -615.9999998733        
0.0000001267

  Core density on regular grids:              615.9999999577       
-0.0000000423

  Total charge density on r-space grids:        0.0000000844

  Total charge density g-space grids:           0.0000000844


  Overlap energy of the core charge distribution:               
0.00003350840629

  Self energy of the core charge distribution:              
-2632.79426559183366

  Core Hamiltonian energy:                                    
794.81310094682885

  Hartree energy:                                             
947.65216775768943

  Exchange-correlation energy:                               
-299.12920534757234

  Dispersion energy:                                           
-0.48856119195414


  Total energy:                                             
-1189.94672991843549


 *******************************************************************************

 *   ___                                                                   
    *

 *  /   \                                                                  
    *

 * [ABORT]                                                                 
    *

 *  \___/     SCF run NOT converged. To continue the calculation 
regardless,   *

 *    |             please set the keyword IGNORE_CONVERGENCE_FAILURE.     
    *

 *  O/|                                                                    
    *

 * /| |                                                                    
    *

 * / \                                                            
qs_scf.F:605 *

 *******************************************************************************
```

And the same with CP2K 8.1:

```

SCF WAVEFUNCTION OPTIMIZATION


  Step     Update method      Time    Convergence         Total energy    
Change

  
------------------------------------------------------------------------------

     1 P_Mix/Diag. 0.40E+00    1.3     1.91814519     -1188.7970620307 
-1.19E+03

     2 P_Mix/Diag. 0.40E+00    1.3     0.98986197     -1189.4701518002 
-6.73E-01

     3 P_Mix/Diag. 0.40E+00    1.3     0.60073380     -1189.6945238285 
-2.24E-01

     4 P_Mix/Diag. 0.40E+00    1.3     0.35995489     -1189.7984103824 
-1.04E-01

     5 P_Mix/Diag. 0.40E+00    1.3     0.21792231     -1189.8550833041 
-5.67E-02

     6 P_Mix/Diag. 0.40E+00    1.3     0.13135123     -1189.8888159330 
-3.37E-02

     7 P_Mix/Diag. 0.40E+00    1.3     0.07862649     -1189.9096517911 
-2.08E-02

     8 DIIS/Diag.  0.15E-01    1.3     0.04803371     -1189.9227497559 
-1.31E-02

     9 DIIS/Diag.  0.11E-02    1.3     0.00109703     -1189.9467228503 
-2.40E-02

    10 DIIS/Diag.  0.14E-02    1.3     0.00082531     -1189.9467182445  
4.61E-06

    11 DIIS/Diag.  0.65E-03    1.3     0.00066859     -1189.9467276592 
-9.41E-06

    12 DIIS/Diag.  0.40E-03    1.3     0.00030086     -1189.9467290669 
-1.41E-06

    13 DIIS/Diag.  0.35E-04    1.3     0.00005593     -1189.9467305243 
-1.46E-06

    14 DIIS/Diag.  0.62E-04    1.3     0.00003367     -1189.9467305025  
2.18E-08

    15 DIIS/Diag.  0.13E-04    1.3     0.00000943     -1189.9467305364 
-3.39E-08


  *** SCF run converged in    15 steps ***



  Electronic density on regular grids:       -615.9999998732        
0.0000001268

  Core density on regular grids:              615.9999999577       
-0.0000000423

  Total charge density on r-space grids:        0.0000000844

  Total charge density g-space grids:           0.0000000844


  Overlap energy of the core charge distribution:               
0.00003350840629

  Self energy of the core charge distribution:              
-2632.79426559183366

  Core Hamiltonian energy:                                    
794.81337213105883

  Hartree energy:                                             
947.65193647711760

  Exchange-correlation energy:                               
-299.12924586918939

  Dispersion energy:                                           
-0.48856119195414


  Total energy:                                             
-1189.94673053639440


 ENERGY| Total FORCE_EVAL ( QS ) energy [a.u.]:            
-1189.946730536853693
```

In both cases, `EPS_DIIS` has a default value of 1e-1:

```

 SCF PARAMETERS         Density guess:                                    
ATOMIC

                        
--------------------------------------------------------

                        max_scf:                                            
  50

                        max_scf_history:                                   
    0

                        max_diis:                                          
    4

                        
--------------------------------------------------------

                        eps_scf:                                        
1.00E-05

                        eps_scf_history:                                
0.00E+00

                        eps_diis:                                       
1.00E-01

                        eps_eigval:                                     
1.00E-05

                        
--------------------------------------------------------

                        level_shift [a.u.]:                             
0.000000

                        
--------------------------------------------------------

                        Mixing method:                           
DIRECT_P_MIXING

                        
--------------------------------------------------------

                        No outer SCF
``` 

Do you have any tips on what I could check? Could it be a problem of 
incorrectly compiled code? 

I would really appreciate any help! Input file is in the attachments.

Best,
Bartosz 

-- 
You received this message because you are subscribed to the Google Groups "cp2k" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cp2k+unsubscribe at googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/cp2k/6917d0d3-b9a1-4958-ae16-bb37019cb81bn%40googlegroups.com.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.cp2k.org/archives/cp2k-user/attachments/20240903/bbd42bad/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cp2k.inp
Type: chemical/x-gamess-input
Size: 10376 bytes
Desc: not available
URL: <https://lists.cp2k.org/archives/cp2k-user/attachments/20240903/bbd42bad/attachment-0001.inp>


More information about the CP2K-user mailing list