[QE-users] 回复: problems of calculation of vibration frequency using ph.x

兵临城下 vegalew at qq.com
Tue Jan 22 16:15:49 CET 2019


Dear all,


The output updates just now.


The following information updates,


.........................
 Representation    48      1 modes -A  Not done in this run


     Compute atoms:     1,






     Alpha used in Ewald sum =   2.8000


     negative rho (up, down):  2.283E-04 2.603E-03
     PHONON       :     2h51m CPU       51h 2m WALL


      56h




     Representation #  1 mode #   1


     Self-consistent Calculation


     Pert. #  1: Fermi energy shift (Ry) =     1.5215E-04     0.0000E+00


      iter #   1 total cpu time : 11244.6 secs   av.it.:  14.2
      thresh= 1.000E-02 alpha_mix =  0.700 |ddv_scf|^2 =  3.727E-07



It seems too much slow. Is there a method to accelerate the calculation?


vega
------------------
------------------
vega
Department of physics, Nanjing University, China





 
------------------
------------------
刘维佳 博士    高级工程师
================================
南京市锅炉压力容器检验研究院 石化装置泄漏检测与修复服务中心
南京市六合区天圣路150号
http://www.njbpvi.org/





 




------------------ 原始邮件 ------------------
发件人: "兵临城下"<vegalew at qq.com>; 
发送时间: 2019年1月22日(星期二) 晚上10:39
收件人: "users"<users at lists.quantum-espresso.org>; 
主题: [QE-users] problems of calculation of vibration frequency using ph.x



Dear all,
The reviewers asked me to do zero-point corrections (ZPE) for water adsorbed on Fe surface slab.
I tried to use ph.x to calculate vibration frequency of adsorbed H2O on the surface.
But when I finished the scf calculation, ph.x made the CPU cores rushing madly without output...
Then I simplified the system with one water molecule in the supercell of 12.5x12.5x21 Angstrom^3. The ph.x could calculate 9 vibration frequencies successfully. But it seems a little bit slow.
But when I simplified the system with 16 Fe atoms on first layer of surface slab in the supercell of 12.5x12.5x21 Angstrom^3 and removed the rest Fe atoms below the surface. The ph.x  made the CPU cores mad again.


the input file for scf calculation of Fe atoms on first layer of surface slab as follows,


&CONTROL
   calculation  = 'scf',
   restart_mode = 'from_scratch' ,
   outdir='/fs08/home/espresso-6.1/qe-6.1/tempdir/test-1.0.2x2/Fe' ,
   prefix='test-1.0.2x2Fe',
   pseudo_dir = '/fs08/home/qe-6.3/pseudo/' ,
   etot_conv_thr = 4.0D-4 ,
   forc_conv_thr = 4.0D-4 ,
         tstress = .true. ,
         tprnfor = .true. ,
      wf_collect = .true. ,
/
&SYSTEM
    ibrav     = 0,
        nosym = .true.,
    A         = 11.2840,
    nat       = 16,
    ntyp      = 1,
    nspin     = 2,
    starting_magnetization(1)=0.6,
    occupations='smearing',
    smearing='mp',
    degauss=0.05,
    ecutwfc =64,
    ecutrho =782.0
/
&ELECTRONS
    mixing_mode ='local-TF',
    mixing_beta=0.3,
/


CELL_PARAMETERS
    1.00000000  0.00000000  0.00000000
    0.00000000  1.00000000  0.00000000
    0.00000000  0.00000000  1.86569478


ATOMIC_SPECIES
Fe  55.85   Fe.pbe-spn-kjpaw_psl.0.2.1.UPF


ATOMIC_POSITIONS  crystal
Fe      -0.000070162  -0.001364954   0.336563416
Fe       0.249801425  -0.000872680   0.336864779
Fe       0.499934921  -0.002545661   0.336890374
Fe       0.750021168  -0.000874476   0.336865169
Fe      -0.000045769   0.249376170   0.336866355
Fe       0.249625654   0.248725837   0.336534575
Fe       0.499939806   0.248410455   0.336312079
Fe       0.750318855   0.248696436   0.336528914
Fe      -0.000005167   0.498750484   0.336896061
Fe       0.246009504   0.499503888   0.335983876
Fe       0.500263595   0.496421434   0.341364152
Fe       0.753992382   0.499521417   0.335970703
Fe      -0.000037116   0.749380804   0.336858971
Fe       0.250321424   0.748218135   0.336582066
Fe       0.499946787   0.755247262   0.335688659
Fe       0.749616030   0.748261810   0.336570775
K_POINTS automatic
2 2 1 0 0 0



The input file for ph.x as follows,


test
&INPUTPH
   outdir='/fs08/home/espresso-6.1/qe-6.1/tempdir/test-1.0.2x2/Fe' ,
   prefix='test-1.0.2x2Fe',
fildyn='test.dynG',
nat_todo=1
/
0.0 0.0 0.0
1



The output of ph.x as follows,
Program PHONON v.6.3 starts on 22Jan2019 at 19:46:26


     This program is part of the open-source Quantum ESPRESSO suite
     for quantum simulation of materials; please cite
         "P. Giannozzi et al., J. Phys.:Condens. Matter 21 395502 (2009);
         "P. Giannozzi et al., J. Phys.:Condens. Matter 29 465901 (2017);
          URL http://www.quantum-espresso.org",
     in publications or presentations arising from this work. More details at
     http://www.quantum-espresso.org/quote


     Parallel version (MPI), running on    24 processors


     MPI processes distributed on     1 nodes
     R & G space division:  proc/nbgrp/npool/nimage =      24


     Reading data from directory:
     /fs08/home/espresso-6.1/qe-6.1/tempdir/test-1.0.2x2/Fe/test-1.0.2x2Fe.save/


     IMPORTANT: XC functional enforced from input :
     Exchange-correlation      = PBE ( 1  4  3  4 0 0)
     Any further DFT definition will be discarded
     Please, verify this is what you really want


               file Fe.pbe-spn-kjpaw_psl.0.2.1.UPF: wavefunction(s)  3D renormalized


     Parallelization info
     --------------------
     sticks:   dense  smooth     PW     G-vecs:    dense   smooth      PW
     Min        1178     386    101               278340    52130    7032
     Max        1179     387    103               278345    52141    7038
     Sum       28293    9265   2441              6680231  1251139  168823


     Generating pointlists ...
     new r_m :   0.0999 (alat units)  2.1305 (a.u.) for type    1


     Check: negative/imaginary core charge=   -0.000004    0.000000


     negative rho (up, down):  2.283E-04 2.603E-03


     Calculation of q =    0.0000000   0.0000000   0.0000000


Possibly too few bands at point    1   0.00000   0.00000   0.00000


Possibly too few bands at point    2   0.00000  -0.50000   0.00000


Possibly too few bands at point    3  -0.50000   0.00000   0.00000


Possibly too few bands at point    4  -0.50000  -0.50000   0.00000


Possibly too few bands at point    5   0.00000   0.00000   0.00000


Possibly too few bands at point    6   0.00000  -0.50000   0.00000


Possibly too few bands at point    7  -0.50000   0.00000   0.00000


Possibly too few bands at point    8  -0.50000  -0.50000   0.00000


     test


     bravais-lattice index     =            0
     lattice parameter (alat)  =      21.3237  a.u.
     unit-cell volume          =   18089.4947 (a.u.)^3
     number of atoms/cell      =           16
     number of atomic types    =            1
     kinetic-energy cut-off    =      64.0000  Ry
     charge density cut-off    =     782.0000  Ry
     convergence threshold     =      1.0E-12
     beta                      =       0.7000
     number of iterations used =            4
     Exchange-correlation      = PBE ( 1  4  3  4 0 0)




     celldm(1)=   21.32367  celldm(2)=    0.00000  celldm(3)=    1.86569
     celldm(4)=    0.00000  celldm(5)=    0.00000  celldm(6)=    0.00000


     crystal axes: (cart. coord. in units of alat)
               a(1) = (  1.0000  0.0000  0.0000 )
               a(2) = (  0.0000  1.0000  0.0000 )
               a(3) = (  0.0000  0.0000  1.8657 )


     reciprocal axes: (cart. coord. in units 2 pi/alat)
               b(1) = (  1.0000  0.0000  0.0000 )
               b(2) = (  0.0000  1.0000  0.0000 )
               b(3) = (  0.0000  0.0000  0.5360 )




     Atoms inside the unit cell:


     Cartesian axes


     site n.  atom      mass           positions (alat units)
        1     Fe  55.8500   tau(    1) = (   -0.00007   -0.00136    0.62792  )
        2     Fe  55.8500   tau(    2) = (    0.24980   -0.00087    0.62849  )
        3     Fe  55.8500   tau(    3) = (    0.49993   -0.00255    0.62853  )
        4     Fe  55.8500   tau(    4) = (    0.75002   -0.00087    0.62849  )
        5     Fe  55.8500   tau(    5) = (   -0.00005    0.24938    0.62849  )
        6     Fe  55.8500   tau(    6) = (    0.24963    0.24873    0.62787  )
        7     Fe  55.8500   tau(    7) = (    0.49994    0.24841    0.62746  )
        8     Fe  55.8500   tau(    8) = (    0.75032    0.24870    0.62786  )
        9     Fe  55.8500   tau(    9) = (   -0.00001    0.49875    0.62855  )
       10     Fe  55.8500   tau(   10) = (    0.24601    0.49950    0.62684  )
       11     Fe  55.8500   tau(   11) = (    0.50026    0.49642    0.63688  )
       12     Fe  55.8500   tau(   12) = (    0.75399    0.49952    0.62682  )
       13     Fe  55.8500   tau(   13) = (   -0.00004    0.74938    0.62848  )
       14     Fe  55.8500   tau(   14) = (    0.25032    0.74822    0.62796  )
       15     Fe  55.8500   tau(   15) = (    0.49995    0.75525    0.62629  )
       16     Fe  55.8500   tau(   16) = (    0.74962    0.74826    0.62794  )


     Computing dynamical matrix for
                    q = (   0.0000000   0.0000000   0.0000000 )


      2 Sym.Ops. (with q -> -q+G )




     G cutoff = 9006.8081  ( 278343 G-vectors)     FFT grid: (192,192,360)
     G cutoff = 2948.5203  (  52132 G-vectors)  smooth grid: (120,120,216)


     number of k points=     8  mp smearing, width (Ry)=  0.0500
                       cart. coord. in units 2pi/alat
        k(    1) = (   0.0000000   0.0000000   0.0000000), wk =   0.2500000
        k(    2) = (   0.0000000  -0.5000000   0.0000000), wk =   0.2500000
        k(    3) = (  -0.5000000   0.0000000   0.0000000), wk =   0.2500000
        k(    4) = (  -0.5000000  -0.5000000   0.0000000), wk =   0.2500000
        k(    5) = (   0.0000000   0.0000000   0.0000000), wk =   0.2500000
        k(    6) = (   0.0000000  -0.5000000   0.0000000), wk =   0.2500000
        k(    7) = (  -0.5000000   0.0000000   0.0000000), wk =   0.2500000
        k(    8) = (  -0.5000000  -0.5000000   0.0000000), wk =   0.2500000


     PseudoPot. # 1 for Fe read from file:
     /fs08/home/js_wjliu/qe-6.3/pseudo/Fe.pbe-spn-kjpaw_psl.0.2.1.UPF
     MD5 check sum: 4338034a7fd945be4bb7db5fd3b2d142
     Pseudo is Projector augmented-wave + core cor, Zval = 16.0
     Generated using "atomic" code by A. Dal Corso v.5.0.2 svn rev. 9415
     Shape of augmentation charge: PSQ
     Using radial grid of 1191 points,  6 beta functions with:
                l(1) =   0
                l(2) =   0
                l(3) =   1
                l(4) =   1
                l(5) =   2
                l(6) =   2
     Q(r) pseudized with 0 coefficients




     Mode symmetry, C_1 (1)     point group:




     Atomic displacements:
     There are  48 irreducible representations


     Representation     1      1 modes -A  To be done


     Representation     2      1 modes -A  To be done


     Representation     3      1 modes -A  To be done


     Representation     4      1 modes -A  Not done in this run


     Representation     5      1 modes -A  Not done in this run


     Representation     6      1 modes -A  Not done in this run


     Representation     7      1 modes -A  Not done in this run


     Representation     8      1 modes -A  Not done in this run


     Representation     9      1 modes -A  Not done in this run


     Representation    10      1 modes -A  Not done in this run


     Representation    11      1 modes -A  Not done in this run


     Representation    12      1 modes -A  Not done in this run


     Representation    13      1 modes -A  Not done in this run


     Representation    14      1 modes -A  Not done in this run


     Representation    15      1 modes -A  Not done in this run


     Representation    16      1 modes -A  Not done in this run


     Representation    17      1 modes -A  Not done in this run


     Representation    18      1 modes -A  Not done in this run


     Representation    19      1 modes -A  Not done in this run


     Representation    20      1 modes -A  Not done in this run


     Representation    21      1 modes -A  Not done in this run


     Representation    22      1 modes -A  Not done in this run


     Representation    23      1 modes -A  Not done in this run


     Representation    24      1 modes -A  Not done in this run


     Representation    25      1 modes -A  Not done in this run


     Representation    26      1 modes -A  Not done in this run


     Representation    27      1 modes -A  Not done in this run


     Representation    28      1 modes -A  Not done in this run


     Representation    29      1 modes -A  Not done in this run


     Representation    30      1 modes -A  Not done in this run


     Representation    31      1 modes -A  Not done in this run


     Representation    32      1 modes -A  Not done in this run


     Representation    33      1 modes -A  Not done in this run


     Representation    34      1 modes -A  Not done in this run


     Representation    35      1 modes -A  Not done in this run


     Representation    36      1 modes -A  Not done in this run


     Representation    37      1 modes -A  Not done in this run


     Representation    38      1 modes -A  Not done in this run


     Representation    39      1 modes -A  Not done in this run


     Representation    40      1 modes -A  Not done in this run


     Representation    41      1 modes -A  Not done in this run


     Representation    42      1 modes -A  Not done in this run


     Representation    43      1 modes -A  Not done in this run


     Representation    44      1 modes -A  Not done in this run


     Representation    45      1 modes -A  Not done in this run


     Representation    46      1 modes -A  Not done in this run


     Representation    47      1 modes -A  Not done in this run


     Representation    48      1 modes -A  Not done in this run


     Compute atoms:     1,



Then the CPU cores runs madly for days, but the output file never updates at all.


I have tested it with 6.1,6.2,6.3 versions of QE. The situation remains the same.


My QE is compiled by intel compilers. openmpi 1.10.0 is also used for parallel calculation.


Any help will be deeply appreciated.


best wishes


vega
------------------
------------------
vega
Department of physics, Nanjing University, China
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