[CP2K-user] [CP2K:17150] Re: Expert Advice needed: PERIODIC_EFIELD with metal nano-particle

Sam Broderick waveman68 at gmail.com
Mon Jun 13 12:27:12 UTC 2022


Thank you so much on the UKS! I don't see the forest for the trees by now, 
with all the trying out.

On Monday, June 13, 2022 at 1:27:30 PM UTC+2 Matthias Krack wrote:

> Hi Sam
>
>  
>
> it seems that you try to restart from an OT run with spin polarization 
> (LSD/UKS ON) using an input in which LSD/UKS is set OFF or not set (the 
> default is OFF), but it is not possible to change the spin-polarization on 
> restart.
>
>  
>
> The OT run should have written the last converged (spin-polarized) 
> wavefunction to the wfn restart file.
>
>  
>
> And right, PERIODIC_EFIELD is only implement for OT.
>
> HTH
>
>  
>
> Matthias
>
>  
>
> *From: *"cp... at googlegroups.com" <cp... at googlegroups.com> on behalf of 
> Sam Broderick <wave... at gmail.com>
> *Reply to: *"cp... at googlegroups.com" <cp... at googlegroups.com>
> *Date: *Monday, 13 June 2022 at 12:24
> *To: *"cp... at googlegroups.com" <cp... at googlegroups.com>
> *Subject: *[CP2K:17148] Re: Expert Advice needed: PERIODIC_EFIELD with 
> metal nano-particle
>
>  
>
> The output from the production one (the global run is large show I include 
> the end here: 
>
>  
>
> MD| 
> ***************************************************************************
>  MD| Step number                                                           
>  5104
>  MD| Time [fs]                                                       
> 2552.000000
>  MD| Conserved quantity [hartree]                           
>  -0.262582505304E+04
>  MD| 
> ---------------------------------------------------------------------------
>  MD|                                          Instantaneous             
> Averages
>  MD| CPU time per MD step [s]                     26.061410           
>  33.822750
>  MD| Energy drift per atom [K]           0.374503646625E+03   
> 0.205283418423E+03
>  MD| Potential energy [hartree]         -0.262589862674E+04 
>  -0.262592631376E+04
>  MD| Kinetic energy [hartree]            0.137757326096E+00   
> 0.119719069562E+00
>  MD| Temperature [K]                             376.625724           
> 327.309498
>  MD| 
> ***************************************************************************
>
>  Spin 1
>
>  Number of electrons:                                                     
>    435
>  Number of occupied orbitals:                                             
>    435
>  Number of molecular orbitals:                                             
>   435
>
>  Spin 2
>
>  Number of electrons:                                                     
>    434
>  Number of occupied orbitals:                                             
>    434
>  Number of molecular orbitals:                                             
>   434
>
>  Number of orbital functions:                                             
>   1975
>  Number of independent orbital functions:                                 
>   1975
>
>  Extrapolation method: PS Nth order
>  Extrapolation order:  2
>
>
>  SCF WAVEFUNCTION OPTIMIZATION
>
>   ----------------------------------- OT 
> ---------------------------------------
>   Minimizer      : DIIS                : direct inversion
>                                          in the iterative subspace
>                                          using   7 DIIS vectors
>                                          safer DIIS on
>   Preconditioner : FULL_SINGLE_INVERSE : inversion of 
>                                          H + eS - 
> 2*(Sc)(c^T*H*c+const)(Sc)^T
>   Precond_solver : DEFAULT
>   stepsize       :    0.08000000                  energy_gap     :   
>  0.08000000
>   ortho_irac     : CHOL                           irac_degree    :         
>     4
>   max_irac       :            50                  eps_irac       :   
> 0.10000E-09
>   eps_irac_switch:   0.10000E-01                  eps_irac_quick_exit: 
> 0.100E-04
>   on_the_fly_loc : F
>   ----------------------------------- OT 
> ---------------------------------------
>
>   Step     Update method      Time    Convergence         Total energy   
>  Change
>   
> ------------------------------------------------------------------------------
>      1 OT DIIS     0.80E-01    1.6     0.00000775     -2625.8983262879 
> -2.63E+03
>      2 OT DIIS     0.80E-01    1.7     0.00000405     -2625.8983310938 
> -4.81E-06
>      3 OT DIIS     0.80E-01    1.7     0.00000353     -2625.8983328495 
> -1.76E-06
>      4 OT DIIS     0.80E-01    1.7     0.00000334     -2625.8983350122 
> -2.16E-06
>      5 OT DIIS     0.80E-01    1.8     0.00000315     -2625.8983386726 
> -3.66E-06
>      6 OT DIIS     0.80E-01    1.7     0.00000296     -2625.8983443709 
> -5.70E-06
>      7 OT DIIS     0.80E-01    1.7     0.00000269     -2625.8983545672 
> -1.02E-05
>      8 OT DIIS     0.80E-01    1.7     0.00000249     -2625.8983637011 
> -9.13E-06
>      9 OT DIIS     0.80E-01    1.7     0.00000233     -2625.8983715220 
> -7.82E-06
>     10 OT DIIS     0.80E-01    1.7     0.00000220     -2625.8983782333 
> -6.71E-06
>     11 OT DIIS     0.80E-01    1.8     0.00000210     -2625.8983844367 
> -6.20E-06
>     12 OT DIIS     0.80E-01    1.7     0.00000203     -2625.8983895822 
> -5.15E-06
>     13 OT DIIS     0.80E-01    1.7     0.00000197     -2625.8983941766 
> -4.59E-06
>     14 OT DIIS     0.80E-01    1.7     0.00000191     -2625.8983986569 
> -4.48E-06
>     15 OT DIIS     0.80E-01    1.7     0.00000185     -2625.8984037404 
> -5.08E-06
>     16 OT DIIS     0.80E-01    1.7     0.00000178     -2625.8984097126 
> -5.97E-06
>     17 OT DIIS     0.80E-01    1.7     0.00000166     -2625.8984185968 
> -8.88E-06
>     18 OT DIIS     0.80E-01    1.6     0.00000154     -2625.8984272390 
> -8.64E-06
>     19 OT DIIS     0.80E-01    1.7     0.00000142     -2625.8984357725 
> -8.53E-06
>     20 OT DIIS     0.80E-01    1.7     0.00000130     -2625.8984426842 
> -6.91E-06
>     21 OT DIIS     0.80E-01    1.7     0.00000121     -2625.8984475524 
> -4.87E-06
>     22 OT DIIS     0.80E-01    1.7     0.00000113     -2625.8984512475 
> -3.70E-06
>     23 OT DIIS     0.80E-01    1.7     0.00000106     -2625.8984545255 
> -3.28E-06
>     24 OT DIIS     0.80E-01    1.7     0.00000099     -2625.8984573944 
> -2.87E-06
>
>  *** SCF run terminated - exceeded requested execution time:   86340.000 
> seconds.
>
>  *** Execution time now:    86340.037 seconds.
>
>   *** SCF run converged in    24 steps ***
>
>
>   Electronic density on regular grids:       -869.0000000000       
>  0.0000000000
>   Core density on regular grids:              868.9999999985       
> -0.0000000015
>   Total charge density on r-space grids:       -0.0000000014
>   Total charge density g-space grids:          -0.0000000014
>
>   Overlap energy of the core charge distribution:               
> 0.00000146582976
>   Self energy of the core charge distribution:             
>  -4570.41375350254566
>   Core Hamiltonian energy:                                   
> 1458.28031159567945
>   Hartree energy:                                             
> 899.55026105138484
>   Exchange-correlation energy:                               
> -412.42098926839282
>   Dispersion energy:                                           
> -0.89428873636523
>
>   Total energy:                                             
> -2625.89845739440943
>
>   outer SCF iter =    1 RMS gradient =   0.99E-06 energy =     
>  -2625.8984573944
>   outer SCF loop converged in   1 iterations or   24 steps
>
>
>  ENERGY| Total FORCE_EVAL ( QS ) energy [a.u.]:           
>  -2625.898460009454993
>
>  *** MD run terminated - exceeded requested execution time:   86340.000 
> seconds.
>
>  *** Execution time now:    86343.048 seconds.
>
> On Monday, June 13, 2022 at 12:19:20 PM UTC+2 Sam Broderick wrote:
>
> An additional question: after a global run, where the last step did not 
> converge within the WALLTIME I set in the input: 
>
>  
>
>  *** SCF run terminated - exceeded requested execution time:   86340.000 
> seconds.
>
>  *** Execution time now:    86340.037 seconds.
>
> What is stored in the restart data? The last converged MD step or the one 
> that did not converge? Could this be why I get this error when I try to 
> start a production run form this? Sorry for the newbie questions.
>
>  
>
> READ RESTART : WARNING : nspin is not equal 
>
>
>  *******************************************************************************
>  *   ___                                                                   
>     *
>  *  /   \                                                                 
>      *
>  * [ABORT]                                                                 
>     *
>  *  \___/                     Reducing nspin is not possible.             
>      *
>  *    |                                                                   
>      *
>  *  O/|                                                                   
>      *
>  * /| |                                                                   
>      *
>  * / \                                                         
>  qs_mo_io.F:708 *
>
>  *******************************************************************************
>
>
>  ===== Routine Calling Stack ===== 
>
>             8 read_mo_set_from_restart
>             7 calculate_first_density_matrix
>             6 scf_env_initial_rho_setup
>             5 init_scf_run
>             4 qs_energies
>             3 qs_forces
>             2 qs_mol_dyn_low
>             1 CP2K
>
>  
>
> On Monday, June 13, 2022 at 11:42:26 AM UTC+2 Sam Broderick wrote:
>
> Dear cp2k aficionados, 
>
>  
>
>  
>
> It seems to me that I have run into a strong limitation of cp2k, but I am 
> not know enough to anything close to sure. My goal: determine spectroscopic 
> response of an organic molecule near a metal nano-particle.
>
>  
>
> On the one hand, &DIAGONALIZATION is strongly recommended for metals. On 
> the other hand, TRAVIS requires &PERIODIC_EFIELD to determine the 
> polarizability, but this means &OT. I am having severe difficulties with 
> the production run with a thermostat.
>
>  
>
> Is cp2k the right tool or am I just not doing it right (e.g., something 
> better than DZVP-MOLOPT-SR-GTH and GTH-PBE-q)
>
>  
>
> Would you please have a look at my .inp and provide me with some tips? My 
> boss is quite dissatisfied with node hour usage while I try to figure this 
> out.
>
>  
>
> Many, many thanks
>
> Sam
>
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