[CP2K-user] CP2K MD run step halted/stalled (or time goes to infinity)

Fabian Årén fabbe... at gmail.com
Thu Nov 15 09:00:55 UTC 2018


Hello everyone!

I am a CP2K novice and I cannot understand why my calculations stall at 
iteration no 6 as can be seen in my energy file. The previous time steps 
converges rather fast but the 6th step reach SCF iteration 19 and then 
stalls. The job itself isn't ended until my scheduler declares a TIMEOUT 
after 24h.



  Electronic density on regular grids:      -2009.9999987606        
0.0000012394
  Core density on regular grids:             2009.9999999243       
-0.0000000757
  Total charge density on r-space grids:        0.0000011637
  Total charge density g-space grids:           0.0000011637

  Overlap energy of the core charge distribution:               
0.00003261383677
  Self energy of the core charge distribution:             
-13329.55226970244985
  Core Hamiltonian energy:                                   
3789.92136003552923
  Hartree energy:                                            
5506.65672156167420
  Exchange-correlation energy:                              
-1110.50411960884639
  Electronic entropic energy:                                  
-0.00368413372033
  Fermi energy:                                                 
0.07475177105403

  Total energy:                                             
-5143.48195923617095

 ENERGY| Total FORCE_EVAL ( QS ) energy (a.u.):            
-5143.481959946687311


 Number of electrons:                                                       
2010
 Number of occupied orbitals:                                               
1011
 Number of molecular orbitals:                                              
1015

 Number of orbital functions:                                               
4985
 Number of independent orbital functions:                                   
4985

 Extrapolation method: ASPC


 SCF WAVEFUNCTION OPTIMIZATION

  Step     Update method      Time    Convergence         Total energy    
Change
  
------------------------------------------------------------------------------
     1 Broy./Diag. 0.40E+00    2.8     0.00568008     -5143.4819392630 
-5.14E+03
     2 Broy./Diag. 0.40E+00    3.3     0.02714760     -5143.4953758353 
-1.34E-02
     3 Broy./Diag. 0.40E+00    3.3     0.02436830     -5143.4326737346  
6.27E-02
     4 Broy./Diag. 0.40E+00    3.3     0.00552844     -5143.4913904187 
-5.87E-02
     5 Broy./Diag. 0.40E+00    3.3     0.00680864     -5143.4879466454  
3.44E-03
     6 Broy./Diag. 0.40E+00    4.4     0.00476463     -5143.4784125596  
9.53E-03
     7 Broy./Diag. 0.40E+00    3.3     0.00368603     -5143.4837827209 
-5.37E-03
     8 Broy./Diag. 0.40E+00    3.3     0.00094396     -5143.4820195120  
1.76E-03
     9 Broy./Diag. 0.40E+00    3.3     0.00041156     -5143.4818756225  
1.44E-04
    10 Broy./Diag. 0.40E+00    3.4     0.00021741     -5143.4819736168 
-9.80E-05
    11 Broy./Diag. 0.40E+00    3.3     0.00001235     -5143.4819269254  
4.67E-05
    12 Broy./Diag. 0.40E+00    3.3     0.00003013     -5143.4819865651 
-5.96E-05
    13 Broy./Diag. 0.40E+00    3.3     0.00005158     -5143.4819302681  
5.63E-05
    14 Broy./Diag. 0.40E+00    3.3     0.00004448     -5143.4820559681 
-1.26E-04
    15 Broy./Diag. 0.40E+00    3.3     0.00002510     -5143.4819432354  
1.13E-04
    16 Broy./Diag. 0.40E+00    3.3     0.00004060     -5143.4819603707 
-1.71E-05
    17 Broy./Diag. 0.40E+00    3.3     0.00004038     -5143.4819140065  
4.64E-05
    18 Broy./Diag. 0.40E+00    3.4     0.00002928     -5143.4819502987 
-3.63E-05
    19 Broy./Diag. 0.40E+00    3.4     0.00001072     -5143.4819399902  
1.03E-05
    20 Broy./Diag. 0.40E+00    3.3     0.00000999     -5143.4819362048  
3.79E-06
    21 Broy./Diag. 0.40E+00    3.3     0.00000614     -5143.4819407286 
-4.52E-06
    22 Broy./Diag. 0.40E+00    3.3     0.00000234     -5143.4819390803  
1.65E-06
    23 Broy./Diag. 0.40E+00    3.3     0.00000308     -5143.4819430066 
-3.93E-06
    24 Broy./Diag. 0.40E+00    3.3     0.00000494     -5143.4819335583  
9.45E-06
    25 Broy./Diag. 0.40E+00    3.3     0.00000120     -5143.4819444943 
-1.09E-05
    26 Broy./Diag. 0.40E+00    3.3     0.00000253     -5143.4819413859  
3.11E-06
    27 Broy./Diag. 0.40E+00    3.4     0.00000242     -5143.4819435978 
-2.21E-06
    28 Broy./Diag. 0.40E+00    3.4     0.00000291     -5143.4819402642  
3.33E-06
    29 Broy./Diag. 0.40E+00    3.3     0.00000143     -5143.4819418637 
-1.60E-06
    30 Broy./Diag. 0.40E+00    3.3     0.00000102     -5143.4819423279 
-4.64E-07
    31 Broy./Diag. 0.40E+00    3.3     0.00000063     -5143.4819415066  
8.21E-07

  *** SCF run converged in    31 steps ***


  Electronic density on regular grids:      -2009.9999987606        
0.0000012394
  Core density on regular grids:             2009.9999999243       
-0.0000000757
  Total charge density on r-space grids:        0.0000011637
  Total charge density g-space grids:           0.0000011637

  Overlap energy of the core charge distribution:               
0.00003261473219
  Self energy of the core charge distribution:             
-13329.55226970244985
  Core Hamiltonian energy:                                   
3789.92164048954783
  Hartree energy:                                            
5506.65651348874781
  Exchange-correlation energy:                              
-1110.50417403312031
  Electronic entropic energy:                                  
-0.00368436260763
  Fermi energy:                                                 
0.07475203108369

  Total energy:                                             
-5143.48194150658219

 ENERGY| Total FORCE_EVAL ( QS ) energy (a.u.):            
-5143.481941384219681


 Number of electrons:                                                       
2010
 Number of occupied orbitals:                                               
1011
 Number of molecular orbitals:                                              
1015

 Number of orbital functions:                                               
4985
 Number of independent orbital functions:                                   
4985

 Extrapolation method: ASPC


 SCF WAVEFUNCTION OPTIMIZATION

  Step     Update method      Time    Convergence         Total energy    
Change
  
------------------------------------------------------------------------------
     1 Broy./Diag. 0.40E+00    2.9     0.00207530     -5143.4819301589 
-5.14E+03
     2 Broy./Diag. 0.40E+00    3.3     0.01346923     -5143.4804830141  
1.45E-03
     3 Broy./Diag. 0.40E+00    3.3     0.01301733     -5143.4854083707 
-4.93E-03
     4 Broy./Diag. 0.40E+00    3.3     0.00589877     -5143.4846312429  
7.77E-04
     5 Broy./Diag. 0.40E+00    3.3     0.00401189     -5143.4673877076  
1.72E-02
     6 Broy./Diag. 0.40E+00    3.3     0.00288734     -5143.4859447857 
-1.86E-02
     7 Broy./Diag. 0.40E+00    3.3     0.00236762     -5143.4814894209  
4.46E-03
     8 Broy./Diag. 0.40E+00    3.3     0.00113378     -5143.4820810338 
-5.92E-04
     9 Broy./Diag. 0.40E+00    3.3     0.00025573     -5143.4819764178  
1.05E-04
    10 Broy./Diag. 0.40E+00    3.3     0.00010350     -5143.4819025801  
7.38E-05
    11 Broy./Diag. 0.40E+00    3.3     0.00002121     -5143.4819665644 
-6.40E-05
    12 Broy./Diag. 0.40E+00    3.3     0.00000391     -5143.4819176009  
4.90E-05
    13 Broy./Diag. 0.40E+00    3.3     0.00003668     -5143.4819263899 
-8.79E-06
    14 Broy./Diag. 0.40E+00    3.3     0.00003344     -5143.4819276354 
-1.25E-06
    15 Broy./Diag. 0.40E+00    3.4     0.00002351     -5143.4819554425 
-2.78E-05
    16 Broy./Diag. 0.40E+00    3.3     0.00002408     -5143.4818644329  
9.10E-05
    17 Broy./Diag. 0.40E+00    3.3     0.00002796     -5143.4819442619 
-7.98E-05
    18 Broy./Diag. 0.40E+00    3.3     0.00002579     -5143.4819304731  
1.38E-05
    19 Broy./Diag. 0.40E+00    3.3     0.00001078     -5143.4819337418 
-3.27E-06


I am running cp2k.popt from version 4.1 on an intel machine with 100 cores.

Best regards

Fabian Årén

PhD student
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