[QE-users] relax calculation

Giuseppe Mattioli giuseppe.mattioli at ism.cnr.it
Sun Jun 13 14:18:30 CEST 2021


Dear Alberto
On top of Pascal's suggestions, I would add a bit more. You are  
simulating a coordination-compound-based crystal structure kept  
together by non-covalent interactions between units. If you want to  
optimize the structure you should keep into account dispersion forces.  
In the past, LDA (PZ) was used to simulate this kind of interaction  
because it *overestimates* covalent bonding, leading to structures  
that may sometimes be luckily close to measured ones, but also often  
having electronic properties completely wrong. I recommend the usage  
of a dispersion correction like grimme-d3, or of a vdwdf flavor (there  
are many, I'm satisfactorily using vdw-df3-opt1 in recent calculations  
of molecules on surfaces).

Moreover, in my experience Hartwigsen-Godecker-Hutter (hgh)  
pseudopotentials were quite hard. I would not be surprised if 80 Ry  
are not enough to have converged results. Using a so strict  
forc_conv_thr criterion, you should also lower conv_thr for scf, maybe  
to a value as low as 1.0d-8. I suppose that all the things in &ions  
are not useful in the case of a "relax" calculation.

HTH
Giuseppe


Quoting alberto santonocito <albesantonocito at gmail.com>:

> For clarity I'm attaching the output
>
> Il giorno dom 13 giu 2021 alle ore 12:29 alberto santonocito <
> albesantonocito at gmail.com> ha scritto:
>
>> Hello qe users,
>> I'm doing a geometric optimization (calculation =' relax') of a supercell
>> containing 4 molecules of Fe(CO)5 (C2/c, Z = 4, extracted from
>> "Supplementary Information for Phase Diagram and Transformations of Iron
>> Pentacarbonyl to nm Layered Hematite and Carbon-Oxygen Polymer under
>> Pressure ").
>> This is the input:
>> &control
>>    calculation = 'relax',
>>    verbosity = 'high',
>>    restart_mode = 'from_scratch',
>>    nstep=400,
>>    etot_conv_thr = 1.d-8,
>>    forc_conv_thr = 1.d-5,
>>    tstress = .true.,
>>    pseudo_dir = './PSEUDO_DIR/',
>>    outdir = './TMP_DIR/'
>>  /
>>  &system
>>       ibrav = 14, A=11.807, B=6.821, C=9.367, cosAB=0.0,
>> cosAC=-0.304365584, cosBC=0.0, nat= 44, ntyp= 3,
>>       ecutwfc = 80.0
>>       ecutrho = 400.0
>>       lspinorb=.true.
>>       noncolin=.true.
>>  /
>>  &electrons
>>     mixing_beta = 0.2
>>     conv_thr =  1.0d-6
>>     diagonalization='cg'
>>     electron_maxstep=1000
>>  /
>>  &ions
>>     ion_damping = 0.2,
>>     ion_velocities = 'zero',
>>     ion_nstepe = 10
>>     trust_radius_min = 1.d-5
>>     /
>> ATOMIC_SPECIES
>>  Fe  55.84  Fe.pz-sp-hgh.UPF
>>  C   12.    C.pz-hgh.UPF
>>  O   15.99  O.pz-hgh.UPF
>> ATOMIC_POSITIONS (crystal)
>> Fe      -0.000083575   0.168404809   0.249866056
>> C       -0.000047014  -0.084882975   0.249856908
>> O       -0.000030546  -0.254341641   0.249868140
>> Fe       0.000083575  -0.168404809   0.750133944
>> C        0.000047014   0.084882975   0.750143092
>> O        0.000030546   0.254341641   0.750131860
>> Fe       0.499913517   0.668739566   0.249922673
>> C        0.499916311   0.415459437   0.249947904
>> O        0.499933946   0.246001224   0.249978986
>> Fe       0.500086483   0.331260434   0.750077327
>> C        0.500083689   0.584540563   0.750052096
>> O        0.500066054   0.753998776   0.750021014
>> C        0.076811157   0.298007544   0.407644795
>> C        0.125707127   0.162513245   0.189878936
>> O        0.128659623   0.383972117   0.514197502
>> O        0.208848172   0.154539483   0.149820949
>> C       -0.076811157  -0.298007544   0.592355205
>> C       -0.125707127  -0.162513245   0.810121064
>> O       -0.128659623  -0.383972117   0.485802498
>> O       -0.208848172  -0.154539483   0.850179051
>> C       -0.077155467   0.297806630   0.092050345
>> C       -0.125806766   0.162356585   0.309982931
>> O       -0.129206806   0.383621342  -0.014488420
>> O       -0.208866572   0.154312703   0.350201423
>> C        0.077155467  -0.297806630   0.907949655
>> C        0.125806766  -0.162356585   0.690017069
>> O        0.129206806  -0.383621342   1.014488420
>> O        0.208866572  -0.154312703   0.649798577
>> C        0.576872926   0.798305410   0.407693301
>> C        0.625677147   0.662669676   0.189890358
>> O        0.628796659   0.884237196   0.514228241
>> O        0.708789755   0.654527162   0.149783706
>> C        0.423127074   0.201694590   0.592306699
>> C        0.374322853   0.337330324   0.810109642
>> O        0.371203341   0.115762804   0.485771759
>> O        0.291210245   0.345472838   0.850216294
>> C        0.422938048   0.798247670   0.092123065
>> C        0.374177749   0.662699923   0.310017668
>> O        0.371003558   0.884146914  -0.014425910
>> O        0.291113571   0.654574932   0.350221762
>> C        0.577061952   0.201752330   0.907876935
>> C        0.625822251   0.337300077   0.689982332
>> O        0.628996442   0.115853086   1.014425910
>> O        0.708886429   0.345425068   0.649778238
>>
>> K_POINTS {automatic}
>> 1 1 1  0 0 0
>>
>> In the output I notice the following warning message:
>> "Total force =     0.000539     Total SCF correction =     0.000170
>>      SCF correction compared to forces is large: reduce conv_thr to get
>> better values"
>> Also not all the symmetry elements of my system are found:
>> "double point group C_i (-1)
>>      there are  4 classes and  2 irreducible representations
>>      the character table:
>>
>>        E     -E    i     -i
>>
>> G_2+   1.00 -1.00  1.00 -1.00
>> G_2-   1.00 -1.00 -1.00  1.00 "
>>
>> The axis of rotation C2 and a reflection plane orthogonal to the main axis
>> are missing (I don't know how serious the problem can be because the
>> coordinates obtained seem to me consistent with the experimental data).
>>
>> Finally I don't understand if the calculation has finished correctly:
>>
>> .....
>>
>>  End of self-consistent calculation
>>
>>           k = 0.0000 0.0000 0.0000 ( 58607 PWs)   bands (ev):
>>
>>    -93.0586 -93.0586 -93.0499 -93.0499 -93.0496 -93.0496 -93.0495 -93.0495
>>    -60.2668 -60.2668 -60.2666 -60.2666 -60.2664 -60.2664 -60.2663 -60.2663
>>    -59.7960 -59.7960 -59.7960 -59.7960 -59.7958 -59.7958 -59.7957 -59.7957
>>    -59.7492 -59.7492 -59.7491 -59.7491 -59.7487 -59.7487 -59.7485 -59.7485
>>    -21.8852 -21.8852 -21.8665 -21.8665 -21.8635 -21.8635 -21.8604 -21.8604
>>    -21.8538 -21.8538 -21.8495 -21.8495 -21.8483 -21.8483 -21.8442 -21.8442
>>    -21.5947 -21.5947 -21.5916 -21.5916 -21.5793 -21.5793 -21.5792 -21.5792
>>    -21.5351 -21.5351 -21.5135 -21.5135 -21.5089 -21.5089 -21.5078 -21.5078
>>    -21.5028 -21.5028 -21.4967 -21.4967 -21.4845 -21.4845 -21.4798 -21.4798
>>     -9.4894  -9.4894  -9.4712  -9.4712  -9.4699  -9.4699  -9.4678  -9.4678
>>     -7.5924  -7.5924  -7.4724  -7.4724  -7.4722  -7.4722  -7.4715  -7.4715
>>     -7.4141  -7.4141  -7.4018  -7.4018  -7.3890  -7.3890  -7.3542  -7.3542
>>     -7.3512  -7.3512  -7.3299  -7.3299  -7.2802  -7.2802  -7.2168  -7.2168
>>     -7.1215  -7.1215  -7.0898  -7.0898  -7.0224  -7.0224  -6.9905  -6.9905
>>     -6.0635  -6.0635  -5.7884  -5.7884  -5.7565  -5.7565  -5.7434  -5.7434
>>     -5.5964  -5.5964  -5.5476  -5.5476  -5.5187  -5.5187  -5.5159  -5.5159
>>     -5.4978  -5.4978  -5.4942  -5.4942  -5.4869  -5.4869  -5.3868  -5.3868
>>     -5.3547  -5.3547  -5.3463  -5.3463  -5.2984  -5.2984  -5.2748  -5.2748
>>     -5.2549  -5.2549  -5.1991  -5.1991  -5.1533  -5.1533  -5.1514  -5.1514
>>     -5.1322  -5.1322  -5.1126  -5.1126  -5.0616  -5.0616  -5.0080  -5.0080
>>     -5.0035  -5.0035  -4.9605  -4.9605  -4.9483  -4.9483  -4.9064  -4.9064
>>     -4.8033  -4.8033  -4.7701  -4.7701  -4.7300  -4.7300  -4.7200  -4.7200
>>     -4.6509  -4.6509  -4.5755  -4.5755  -4.5438  -4.5438  -4.4974  -4.4974
>>     -4.3646  -4.3646  -4.3629  -4.3629  -4.3117  -4.3117  -4.2716  -4.2716
>>     -4.2712  -4.2712  -4.2576  -4.2576  -4.2547  -4.2547  -4.1542  -4.1542
>>     -4.1521  -4.1521  -4.1473  -4.1473  -4.1334  -4.1334  -4.0947  -4.0947
>>     -4.0746  -4.0746  -4.0531  -4.0531  -4.0458  -4.0458  -4.0119  -4.0119
>>     -3.9876  -3.9876  -3.9804  -3.9804  -3.9614  -3.9614  -3.9458  -3.9458
>>     -3.7926  -3.7926  -3.5548  -3.5548  -3.4339  -3.4339  -3.3468  -3.3468
>>     -0.9636  -0.9636  -0.9096  -0.9096  -0.8934  -0.8934  -0.8879  -0.8879
>>     -0.8574  -0.8574  -0.8399  -0.8399  -0.8197  -0.8197  -0.8051  -0.8051
>>      0.3615   0.3615   0.3761   0.3761   0.3855   0.3855   0.3879   0.3879
>>      0.3919   0.3919   0.3921   0.3921   0.4314   0.4314   0.4641   0.4641
>>
>>      occupation numbers
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>      1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000   1.0000
>>
>>      highest occupied level (ev):     0.4641
>>
>> !    total energy              =   -1837.03004023 Ry
>>      Harris-Foulkes estimate   =   -1837.03004024 Ry
>>      estimated scf accuracy    <       0.00000001 Ry
>>
>>      The total energy is the sum of the following terms:
>>
>>      one-electron contribution =   -1723.33773875 Ry
>>      hartree contribution      =     915.03055446 Ry
>>      xc contribution           =    -301.88818855 Ry
>>      ewald contribution        =    -726.83466739 Ry
>>
>>      convergence has been achieved in  14 iterations
>>
>>      Forces acting on atoms (Ry/au):
>>
>>      atom    1 type  1   force =    -0.00008219   -0.00017955    0.00003643
>>      atom    2 type  2   force =     0.00001135   -0.00006362    0.00001736
>>      atom    3 type  3   force =     0.00000292   -0.00005114    0.00000176
>>      atom    4 type  1   force =     0.00008219    0.00017955   -0.00003643
>>      atom    5 type  2   force =    -0.00001135    0.00006362   -0.00001736
>>      atom    6 type  3   force =    -0.00000292    0.00005114   -0.00000176
>>      atom    7 type  1   force =     0.00002769   -0.00021894    0.00003150
>>      atom    8 type  2   force =     0.00001118   -0.00006796    0.00000338
>>      atom    9 type  3   force =     0.00000303   -0.00008140   -0.00000033
>>      atom   10 type  1   force =    -0.00002769    0.00021894   -0.00003150
>>      atom   11 type  2   force =    -0.00001118    0.00006796   -0.00000338
>>      atom   12 type  3   force =    -0.00000303    0.00008140    0.00000033
>>      atom   13 type  2   force =     0.00000165   -0.00004705    0.00002128
>>      atom   14 type  2   force =     0.00003679   -0.00003171    0.00001628
>>      atom   15 type  3   force =    -0.00002187   -0.00002144    0.00000888
>>      atom   16 type  3   force =    -0.00001651    0.00000359    0.00001682
>>      atom   17 type  2   force =    -0.00000165    0.00004705   -0.00002128
>>      atom   18 type  2   force =    -0.00003679    0.00003171   -0.00001628
>>      atom   19 type  3   force =     0.00002187    0.00002144   -0.00000888
>>      atom   20 type  3   force =     0.00001651   -0.00000359   -0.00001682
>>      atom   21 type  2   force =     0.00001459   -0.00005592    0.00001950
>>      atom   22 type  2   force =     0.00002824   -0.00002980    0.00000195
>>      atom   23 type  3   force =     0.00001440   -0.00005234    0.00002546
>>      atom   24 type  3   force =    -0.00002875    0.00000424   -0.00001141
>>      atom   25 type  2   force =    -0.00001459    0.00005592   -0.00001950
>>      atom   26 type  2   force =    -0.00002824    0.00002980   -0.00000195
>>      atom   27 type  3   force =    -0.00001440    0.00005234   -0.00002546
>>      atom   28 type  3   force =     0.00002875   -0.00000424    0.00001141
>>      atom   29 type  2   force =    -0.00000421   -0.00005722    0.00001115
>>      atom   30 type  2   force =     0.00001879   -0.00003994    0.00002124
>>      atom   31 type  3   force =    -0.00003043   -0.00003201   -0.00000672
>>      atom   32 type  3   force =     0.00002146    0.00000323    0.00002611
>>      atom   33 type  2   force =     0.00000421    0.00005722   -0.00001115
>>      atom   34 type  2   force =    -0.00001879    0.00003994   -0.00002124
>>      atom   35 type  3   force =     0.00003043    0.00003201    0.00000672
>>      atom   36 type  3   force =    -0.00002146   -0.00000323   -0.00002611
>>      atom   37 type  2   force =     0.00001656   -0.00006534    0.00001467
>>      atom   38 type  2   force =     0.00001128   -0.00004829    0.00000173
>>      atom   39 type  3   force =     0.00002179   -0.00004646    0.00002699
>>      atom   40 type  3   force =     0.00000256   -0.00000832   -0.00000418
>>      atom   41 type  2   force =    -0.00001656    0.00006534   -0.00001467
>>      atom   42 type  2   force =    -0.00001128    0.00004829   -0.00000173
>>      atom   43 type  3   force =    -0.00002179    0.00004646   -0.00002699
>>      atom   44 type  3   force =    -0.00000256    0.00000832    0.00000418
>>      The non-local contrib.  to forces
>>      atom    1 type  1   force =    -0.00000627   -0.00629403    0.00036022
>>      atom    2 type  2   force =     0.00009600   -0.47733304    0.00004743
>>      atom    3 type  3   force =    -0.00037693    3.24340453   -0.00060572
>>      atom    4 type  1   force =     0.00000627    0.00629403   -0.00036022
>>      atom    5 type  2   force =    -0.00009600    0.47733304   -0.00004743
>>      atom    6 type  3   force =     0.00037693   -3.24340453    0.00060572
>>      atom    7 type  1   force =     0.00010735   -0.00652077    0.00015855
>>      atom    8 type  2   force =     0.00000184   -0.47728939    0.00010464
>>      atom    9 type  3   force =    -0.00031904    3.24344147   -0.00091287
>>      atom   10 type  1   force =    -0.00010735    0.00652077   -0.00015855
>>      atom   11 type  2   force =    -0.00000184    0.47728939   -0.00010464
>>      atom   12 type  3   force =     0.00031904   -3.24344147    0.00091287
>>      atom   13 type  2   force =     0.14002573    0.25641314    0.42533258
>>      atom   14 type  2   force =     0.44434952   -0.02078299   -0.14427304
>>      atom   15 type  3   force =    -0.84464513   -1.62673322   -2.61122100
>>      atom   16 type  3   force =    -3.13583025    0.14830808    1.01950038
>>      atom   17 type  2   force =    -0.14002573   -0.25641314   -0.42533258
>>      atom   18 type  2   force =    -0.44434952    0.02078299    0.14427304
>>      atom   19 type  3   force =     0.84464513    1.62673322    2.61122100
>>      atom   20 type  3   force =     3.13583025   -0.14830808   -1.01950038
>>      atom   21 type  2   force =    -0.14092611    0.25623476   -0.42547810
>>      atom   22 type  2   force =    -0.44381899   -0.02092269    0.14475057
>>      atom   23 type  3   force =     0.85165135   -1.62381035    2.61058715
>>      atom   24 type  3   force =     3.13453384    0.14972090   -1.02375796
>>      atom   25 type  2   force =     0.14092611   -0.25623476    0.42547810
>>      atom   26 type  2   force =     0.44381899    0.02092269   -0.14475057
>>      atom   27 type  3   force =    -0.85165135    1.62381035   -2.61058715
>>      atom   28 type  3   force =    -3.13453384   -0.14972090    1.02375796
>>      atom   29 type  2   force =     0.14040527    0.25637516    0.42539604
>>      atom   30 type  2   force =     0.44414895   -0.02119419   -0.14443787
>>      atom   31 type  3   force =    -0.84738905   -1.62598838   -2.61064817
>>      atom   32 type  3   force =    -3.13522929    0.15173440    1.02089948
>>      atom   33 type  2   force =    -0.14040527   -0.25637516   -0.42539604
>>      atom   34 type  2   force =    -0.44414895    0.02119419    0.14443787
>>      atom   35 type  3   force =     0.84738905    1.62598838    2.61064817
>>      atom   36 type  3   force =     3.13522929   -0.15173440   -1.02089948
>>      atom   37 type  2   force =    -0.14046321    0.25640994   -0.42556324
>>      atom   38 type  2   force =    -0.44392624   -0.02112155    0.14468784
>>      atom   39 type  3   force =     0.84759207   -1.62527888    2.61076778
>>      atom   40 type  3   force =     3.13447742    0.15137810   -1.02334088
>>      atom   41 type  2   force =     0.14046321   -0.25640994    0.42556324
>>      atom   42 type  2   force =     0.44392624    0.02112155   -0.14468784
>>      atom   43 type  3   force =    -0.84759207    1.62527888   -2.61076778
>>      atom   44 type  3   force =    -3.13447742   -0.15137810    1.02334088
>>      The ionic contribution  to forces
>>      atom    1 type  1   force =     0.01325092    0.33950651    0.01142842
>>      atom    2 type  2   force =     0.00090117   -3.23575791    0.00456618
>>      atom    3 type  3   force =    -0.00145189  -11.93779430    0.00637171
>>      atom    4 type  1   force =    -0.01325092   -0.33950651   -0.01142842
>>      atom    5 type  2   force =    -0.00090117    3.23575791   -0.00456618
>>      atom    6 type  3   force =     0.00145189   11.93779430   -0.00637171
>>      atom    7 type  1   force =     0.00905180    0.32313388    0.01318593
>>      atom    8 type  2   force =    -0.00006212   -3.23544797    0.00367961
>>      atom    9 type  3   force =     0.00200611  -11.92853126    0.00703592
>>      atom   10 type  1   force =    -0.00905180   -0.32313388   -0.01318593
>>      atom   11 type  2   force =     0.00006212    3.23544797   -0.00367961
>>      atom   12 type  3   force =    -0.00200611   11.92853126   -0.00703592
>>      atom   13 type  2   force =     1.10403563    1.82607712    2.45975076
>>      atom   14 type  2   force =     3.33976300    0.29104673   -0.82075392
>>      atom   15 type  3   force =     3.80265280    6.58609941    9.75859670
>>      atom   16 type  3   force =    12.51132625   -0.17076722   -4.20439272
>>      atom   17 type  2   force =    -1.10403563   -1.82607712   -2.45975076
>>      atom   18 type  2   force =    -3.33976300   -0.29104673    0.82075392
>>      atom   19 type  3   force =    -3.80265280   -6.58609941   -9.75859670
>>      atom   20 type  3   force =   -12.51132625    0.17076722    4.20439272
>>      atom   21 type  2   force =    -1.08798238    1.82895036   -2.45502353
>>      atom   22 type  2   force =    -3.34212143    0.28287575    0.82855281
>>      atom   23 type  3   force =    -3.79634187    6.58990917   -9.74676391
>>      atom   24 type  3   force =   -12.51054256   -0.17989811    4.23449052
>>      atom   25 type  2   force =     1.08798238   -1.82895036    2.45502353
>>      atom   26 type  2   force =     3.34212143   -0.28287575   -0.82855281
>>      atom   27 type  3   force =     3.79634187   -6.58990917    9.74676391
>>      atom   28 type  3   force =    12.51054256    0.17989811   -4.23449052
>>      atom   29 type  2   force =     1.10264271    1.81885527    2.46052242
>>      atom   30 type  2   force =     3.34319951    0.28248311   -0.81964494
>>      atom   31 type  3   force =     3.81034956    6.57120294    9.75391063
>>      atom   32 type  3   force =    12.51471623   -0.19826128   -4.20710784
>>      atom   33 type  2   force =    -1.10264271   -1.81885527   -2.46052242
>>      atom   34 type  2   force =    -3.34319951   -0.28248311    0.81964494
>>      atom   35 type  3   force =    -3.81034956   -6.57120294   -9.75391063
>>      atom   36 type  3   force =   -12.51471623    0.19826128    4.20710784
>>      atom   37 type  2   force =    -1.09364900    1.82104545   -2.45560655
>>      atom   38 type  2   force =    -3.34123945    0.28124257    0.82899191
>>      atom   39 type  3   force =    -3.79163971    6.57779011   -9.75287422
>>      atom   40 type  3   force =   -12.51289492   -0.20135093    4.23804833
>>      atom   41 type  2   force =     1.09364900   -1.82104545    2.45560655
>>      atom   42 type  2   force =     3.34123945   -0.28124257   -0.82899191
>>      atom   43 type  3   force =     3.79163971   -6.57779011    9.75287422
>>      atom   44 type  3   force =    12.51289492    0.20135093   -4.23804833
>>      The local contribution  to forces
>>      atom    1 type  1   force =    -0.01332684   -0.33339203   -0.01175220
>>      atom    2 type  2   force =    -0.00098672    3.71305531   -0.00459235
>>      atom    3 type  3   force =     0.00183076    8.69433704   -0.00575599
>>      atom    4 type  1   force =     0.01332684    0.33339203    0.01175220
>>      atom    5 type  2   force =     0.00098672   -3.71305531    0.00459235
>>      atom    6 type  3   force =    -0.00183076   -8.69433704    0.00575599
>>      atom    7 type  1   force =    -0.00913145   -0.31683206   -0.01331298
>>      atom    8 type  2   force =     0.00007092    3.71268722   -0.00377871
>>      atom    9 type  3   force =    -0.00168518    8.68500300   -0.00611949
>>      atom   10 type  1   force =     0.00913145    0.31683206    0.01331298
>>      atom   11 type  2   force =    -0.00007092   -3.71268722    0.00377871
>>      atom   12 type  3   force =     0.00168518   -8.68500300    0.00611949
>>      atom   13 type  2   force =    -1.24407083   -2.08255937   -2.88509076
>>      atom   14 type  2   force =    -3.78410977   -0.27029645    0.96505564
>>      atom   15 type  3   force =    -2.95803108   -4.95939813   -7.14736903
>>      atom   16 type  3   force =    -9.37551516    0.02245792    3.18491378
>>      atom   17 type  2   force =     1.24407083    2.08255937    2.88509076
>>      atom   18 type  2   force =     3.78410977    0.27029645   -0.96505564
>>      atom   19 type  3   force =     2.95803108    4.95939813    7.14736903
>>      atom   20 type  3   force =     9.37551516   -0.02245792   -3.18491378
>>      atom   21 type  2   force =     1.22893585   -2.08526812    2.88056169
>>      atom   22 type  2   force =     3.78600757   -0.26198376   -0.97330890
>>      atom   23 type  3   force =     2.94470964   -4.96616568    7.13621695
>>      atom   24 type  3   force =     9.37599276    0.03017648   -3.21073948
>>      atom   25 type  2   force =    -1.22893585    2.08526812   -2.88056169
>>      atom   26 type  2   force =    -3.78600757    0.26198376    0.97330890
>>      atom   27 type  3   force =    -2.94470964    4.96616568   -7.13621695
>>      atom   28 type  3   force =    -9.37599276   -0.03017648    3.21073948
>>      atom   29 type  2   force =    -1.24306193   -2.07530904   -2.88593491
>>      atom   30 type  2   force =    -3.78735840   -0.26133038    0.96411419
>>      atom   31 type  3   force =    -2.96299256   -4.94526053   -7.14327525
>>      atom   32 type  3   force =    -9.37946750    0.04652380    3.18623710
>>      atom   33 type  2   force =     1.24306193    2.07530904    2.88593491
>>      atom   34 type  2   force =     3.78735840    0.26133038   -0.96411419
>>      atom   35 type  3   force =     2.96299256    4.94526053    7.14327525
>>      atom   36 type  3   force =     9.37946750   -0.04652380   -3.18623710
>>      atom   37 type  2   force =     1.23413958   -2.07754255    2.88121601
>>      atom   38 type  2   force =     3.78520861   -0.26017090   -0.97368363
>>      atom   39 type  3   force =     2.94407248   -4.95256955    7.14214046
>>      atom   40 type  3   force =     9.37842628    0.04995750   -3.21470680
>>      atom   41 type  2   force =    -1.23413958    2.07754255   -2.88121601
>>      atom   42 type  2   force =    -3.78520861    0.26017090    0.97368363
>>      atom   43 type  3   force =    -2.94407248    4.95256955   -7.14214046
>>      atom   44 type  3   force =    -9.37842628   -0.04995750    3.21470680
>>      The core correction contribution to forces
>>      atom    1 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    2 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom    3 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom    4 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    5 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom    6 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom    7 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    8 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom    9 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   10 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom   11 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   12 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   13 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   14 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   15 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   16 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   17 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   18 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   19 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   20 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   21 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   22 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   23 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   24 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   25 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   26 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   27 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   28 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   29 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   30 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   31 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   32 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   33 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   34 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   35 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   36 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   37 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   38 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   39 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   40 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   41 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   42 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   43 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   44 type  3   force =     0.00000000    0.00000000    0.00000000
>>      The Hubbard contrib.    to forces
>>      atom    1 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    2 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom    3 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom    4 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    5 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom    6 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom    7 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    8 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom    9 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   10 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom   11 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   12 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   13 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   14 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   15 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   16 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   17 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   18 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   19 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   20 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   21 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   22 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   23 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   24 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   25 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   26 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   27 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   28 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   29 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   30 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   31 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   32 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   33 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   34 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   35 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   36 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   37 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   38 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   39 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   40 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   41 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   42 type  2   force =     0.00000000    0.00000000    0.00000000
>>      atom   43 type  3   force =     0.00000000    0.00000000    0.00000000
>>      atom   44 type  3   force =     0.00000000    0.00000000    0.00000000
>>      The SCF correction term to forces
>>      atom    1 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    2 type  2   force =     0.00000091   -0.00002797   -0.00000390
>>      atom    3 type  3   force =     0.00000098    0.00000160   -0.00000823
>>      atom    4 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    5 type  2   force =    -0.00000091    0.00002797    0.00000390
>>      atom    6 type  3   force =    -0.00000098   -0.00000160    0.00000823
>>      atom    7 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom    8 type  2   force =     0.00000053   -0.00001782   -0.00000216
>>      atom    9 type  3   force =     0.00000113    0.00000539   -0.00000389
>>      atom   10 type  1   force =     0.00000000    0.00000000    0.00000000
>>      atom   11 type  2   force =    -0.00000053    0.00001782    0.00000216
>>      atom   12 type  3   force =    -0.00000113   -0.00000539    0.00000389
>>      atom   13 type  2   force =     0.00001112    0.00002207    0.00002870
>>      atom   14 type  2   force =     0.00003403    0.00000100   -0.00001240
>>      atom   15 type  3   force =     0.00000154    0.00001049    0.00000221
>>      atom   16 type  3   force =     0.00000265    0.00000481   -0.00000462
>>      atom   17 type  2   force =    -0.00001112   -0.00002207   -0.00002870
>>      atom   18 type  2   force =    -0.00003403   -0.00000100    0.00001240
>>      atom   19 type  3   force =    -0.00000154   -0.00001049   -0.00000221
>>      atom   20 type  3   force =    -0.00000265   -0.00000481    0.00000462
>>      atom   21 type  2   force =    -0.00001276    0.00002708   -0.00004056
>>      atom   22 type  2   force =    -0.00003890    0.00000089    0.00000747
>>      atom   23 type  3   force =    -0.00000472    0.00001452   -0.00001474
>>      atom   24 type  3   force =    -0.00001279    0.00000496   -0.00000448
>>      atom   25 type  2   force =     0.00001276   -0.00002708    0.00004056
>>      atom   26 type  2   force =     0.00003890   -0.00000089   -0.00000747
>>      atom   27 type  3   force =     0.00000472   -0.00001452    0.00001474
>>      atom   28 type  3   force =     0.00001279   -0.00000496    0.00000448
>>      atom   29 type  2   force =     0.00000974    0.00002140    0.00002760
>>      atom   30 type  2   force =     0.00002873    0.00000153   -0.00001014
>>      atom   31 type  3   force =     0.00000162    0.00001396    0.00000607
>>      atom   32 type  3   force =     0.00000201    0.00000631   -0.00000263
>>      atom   33 type  2   force =    -0.00000974   -0.00002140   -0.00002760
>>      atom   34 type  2   force =    -0.00002873   -0.00000153    0.00001014
>>      atom   35 type  3   force =    -0.00000162   -0.00001396   -0.00000607
>>      atom   36 type  3   force =    -0.00000201   -0.00000631    0.00000263
>>      atom   37 type  2   force =    -0.00001080    0.00002181   -0.00003154
>>      atom   38 type  2   force =    -0.00003164    0.00000159    0.00000561
>>      atom   39 type  3   force =    -0.00000306    0.00001186   -0.00000703
>>      atom   40 type  3   force =    -0.00000622    0.00000701   -0.00000483
>>      atom   41 type  2   force =     0.00001080   -0.00002181    0.00003154
>>      atom   42 type  2   force =     0.00003164   -0.00000159   -0.00000561
>>      atom   43 type  3   force =     0.00000306   -0.00001186    0.00000703
>>      atom   44 type  3   force =     0.00000622   -0.00000701    0.00000483
>>
>>      Total force =     0.000539     Total SCF correction =     0.000170
>>      SCF correction compared to forces is large: reduce conv_thr to get
>> better values
>>
>>
>>      entering subroutine stress ...
>>
>>           total   stress  (Ry/bohr**3)                   (kbar)
>> P=-1034.73
>>   -0.00690874   0.00000013  -0.00008470      -1016.31      0.02    -12.46
>>    0.00000013  -0.00709583   0.00000022          0.02  -1043.83      0.03
>>   -0.00008470   0.00000022  -0.00709737        -12.46      0.03  -1044.06
>>
>>      kinetic stress (kbar)  21980.66      0.01    174.00
>>                                 0.01  22476.70     -0.23
>>                               174.00     -0.23  22461.37
>>
>>      local   stress (kbar) -24888.17      4.00   2442.81
>>                                 4.00 -20335.62     -9.72
>>                              2442.81     -9.72 -21900.02
>>
>>      nonloc. stress (kbar)     84.54      0.02    -55.75
>>                                 0.02    -69.24      0.06
>>                               -55.75      0.06    -68.81
>>
>>      hartree stress (kbar)  10002.52     -1.62   -912.08
>>                                -1.62   8528.48      4.04
>>                              -912.08      4.04   9227.00
>>
>>      exc-cor stress (kbar)  -2851.55      0.00      0.00
>>                                 0.00  -2851.55      0.00
>>                                 0.00      0.00  -2851.55
>>
>>      corecor stress (kbar)      0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>
>>      ewald   stress (kbar)  -5344.31     -2.38  -1661.45
>>                                -2.38  -8792.61      5.89
>>                             -1661.45      5.89  -7912.05
>>
>>      hubbard stress (kbar)      0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>
>>      london  stress (kbar)      0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>
>>      XDM     stress (kbar)      0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>
>>      dft-nl  stress (kbar)      0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>
>>      TS-vdW  stress (kbar)      0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>                                 0.00      0.00      0.00
>>
>>
>>
>>      number of scf cycles    = 400
>>      number of bfgs steps    = 117
>>
>>      energy   old            =   -1837.0300404593 Ry
>>      energy   new            =   -1837.0300402317 Ry
>>
>>      CASE: energy  _new > energy  _old
>>
>>      new trust radius        =       0.0000243237 bohr
>>      new conv_thr            =       0.0000000128 Ry
>>
>>
>> ATOMIC_POSITIONS (crystal)
>> Fe      -0.000083575   0.168404809   0.249866056
>> C       -0.000047014  -0.084882975   0.249856908
>> O       -0.000030546  -0.254341641   0.249868140
>> Fe       0.000083575  -0.168404809   0.750133944
>> C        0.000047014   0.084882975   0.750143092
>> O        0.000030546   0.254341641   0.750131860
>> Fe       0.499913517   0.668739566   0.249922673
>> C        0.499916311   0.415459437   0.249947904
>> O        0.499933946   0.246001224   0.249978986
>> Fe       0.500086483   0.331260434   0.750077327
>> C        0.500083689   0.584540563   0.750052096
>> O        0.500066054   0.753998776   0.750021014
>> C        0.076811157   0.298007544   0.407644795
>> C        0.125707127   0.162513245   0.189878936
>> O        0.128659623   0.383972117   0.514197502
>> O        0.208848172   0.154539483   0.149820949
>> C       -0.076811157  -0.298007544   0.592355205
>> C       -0.125707127  -0.162513245   0.810121064
>> O       -0.128659623  -0.383972117   0.485802498
>> O       -0.208848172  -0.154539483   0.850179051
>> C       -0.077155467   0.297806630   0.092050345
>> C       -0.125806766   0.162356585   0.309982931
>> O       -0.129206806   0.383621342  -0.014488420
>> O       -0.208866572   0.154312703   0.350201423
>> C        0.077155467  -0.297806630   0.907949655
>> C        0.125806766  -0.162356585   0.690017069
>> O        0.129206806  -0.383621342   1.014488420
>> O        0.208866572  -0.154312703   0.649798577
>> C        0.576872926   0.798305410   0.407693301
>> C        0.625677147   0.662669676   0.189890358
>> O        0.628796659   0.884237196   0.514228241
>> O        0.708789755   0.654527162   0.149783706
>> C        0.423127074   0.201694590   0.592306699
>> C        0.374322853   0.337330324   0.810109642
>> O        0.371203341   0.115762804   0.485771759
>> O        0.291210245   0.345472838   0.850216294
>> C        0.422938048   0.798247670   0.092123065
>> C        0.374177749   0.662699923   0.310017668
>> O        0.371003558   0.884146914  -0.014425910
>> O        0.291113571   0.654574932   0.350221762
>> C        0.577061952   0.201752330   0.907876935
>> C        0.625822251   0.337300077   0.689982332
>> O        0.628996442   0.115853086   1.014425910
>> O        0.708886429   0.345425068   0.649778238
>>
>>
>>
>>      Writing output data file pwscf.save
>>      NEW-OLD atomic charge density approx. for the potential
>>
>>      Writing output data file pwscf.save
>>
>>      init_run     :      8.67s CPU     12.00s WALL (       1 calls)
>>      electrons    :  97864.86s CPU 172396.43s WALL (     400 calls)
>>      update_pot   :   2440.24s CPU   2869.61s WALL (     400 calls)
>>      forces       :   1504.43s CPU   1676.43s WALL (     400 calls)
>>      stress       :   2122.07s CPU   2503.75s WALL (     400 calls)
>>
>>      Called by init_run:
>>      wfcinit      :      2.77s CPU      5.24s WALL (       1 calls)
>>      potinit      :      3.30s CPU      3.65s WALL (       1 calls)
>>
>>      Called by electrons:
>>      c_bands      :  92159.33s CPU 158168.32s WALL (    5766 calls)
>>      sum_band     :   5076.73s CPU  12562.96s WALL (    5766 calls)
>>      v_of_rho     :     91.17s CPU    161.96s WALL (    5849 calls)
>>      v_h          :     35.55s CPU     82.77s WALL (    5849 calls)
>>      v_xc         :     55.60s CPU     79.13s WALL (    5849 calls)
>>      mix_rho      :    338.84s CPU    808.76s WALL (    5766 calls)
>>
>>      Called by c_bands:
>>      init_us_2    :     29.41s CPU     44.39s WALL (   11533 calls)
>>      ccgdiagg     :  79579.15s CPU 133357.79s WALL (    6098 calls)
>>      wfcrot       :  12558.97s CPU  24780.80s WALL (    5381 calls)
>>
>>      Called by sum_band:
>>
>>      Called by *cgdiagg:
>>      h_psi        :  49287.89s CPU  95230.23s WALL ( 4647479 calls)
>>      cdiaghg      :   1226.89s CPU   1336.06s WALL (    5381 calls)
>>
>>      Called by h_psi:
>>      h_psi:vloc   :  40289.45s CPU  77333.70s WALL ( 4647479 calls)
>>      h_psi:vnl    :   8861.47s CPU  17711.55s WALL ( 4647479 calls)
>>      add_vuspsi   :   3444.16s CPU   6516.57s WALL ( 4647479 calls)
>>      h_1psi       :  41477.62s CPU  76557.86s WALL ( 4642098 calls)
>>
>>      General routines
>>      calbec       :  10946.34s CPU  20460.58s WALL ( 9291577 calls)
>>      fft          :    565.20s CPU   2108.77s WALL (  127532 calls)
>>      ffts         :    131.27s CPU    473.36s WALL (   46460 calls)
>>      fftw         :  41280.27s CPU  81952.36s WALL (27295400 calls)
>>      interpolate  :    317.92s CPU   1137.22s WALL (   46460 calls)
>>      davcio       :      0.05s CPU   4562.48s WALL (     401 calls)
>>
>>      Parallel routines
>>      fft_scatter  :  32987.94s CPU  66128.36s WALL (27469392 calls)
>>
>>      PWSCF        :     1d    5h 8m CPU        2d    3h38m WALL
>>
>>
>>    This run was terminated on:   6: 1: 5  13Jun2021
>>
>>
>> =------------------------------------------------------------------------------=
>>    JOB DONE.
>>
>> =------------------------------------------------------------------------------=
>> Thanks!
>>



GIUSEPPE MATTIOLI
CNR - ISTITUTO DI STRUTTURA DELLA MATERIA
Via Salaria Km 29,300 - C.P. 10
I-00015 - Monterotondo Scalo (RM)
Mob (*preferred*) +39 373 7305625
Tel + 39 06 90672342 - Fax +39 06 90672316
E-mail: <giuseppe.mattioli at ism.cnr.it>




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