 Warning: Only a single CPU will be used!

     Program TDDFPT_PP v.6.3 starts on  5Sep2018 at 17:39: 1 

     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     8 processors

     MPI processes distributed on     1 nodes
     R & G space division:  proc/nbgrp/npool/nimage =       8

     Reading    500 Lanczos steps for direction 1
        500 steps will be considered


     Reading    500 Lanczos steps for direction 2
        500 steps will be considered


     Reading    500 Lanczos steps for direction 3
        500 steps will be considered


     Data ready, starting to calculate observables...

     Broadening =      0.00100000 Ry

     Output file name: CH4.plot_chi.dat    

     Output file name for the oscillator strength S  CH4.plot_S.dat      

     chi_i_j: dipole polarizability tensor  in units of e^2*a_0^2/energy

     S: oscillator strength in units of 1/energy

     S(\hbar \omega) = 2m/( 3 \pi e^2 \hbar)  \omega sum_j chi_j_j

     S(\hbar \omega) satisfies the f-sum rule:  \int_0^\infty dE S(E) = N_el 

     Functions are reported in \hbar.\omega  Energy unit is (Ry)

     Static dipole polarizability tensor:
     chi_1_1=  0.955871179942119E+01 + i0.000000000000000E+00
     chi_2_1=  0.168928706801439E-05 + i0.000000000000000E+00
     chi_3_1=  0.415347727729182E-06 + i0.000000000000000E+00
     chi_1_2=  0.168928706802946E-05 + i0.000000000000000E+00
     chi_2_2=  0.955871096857978E+01 + i0.000000000000000E+00
     chi_3_2=  0.251299768422214E-05 + i0.000000000000000E+00
     chi_1_3=  0.415347727921780E-06 + i0.000000000000000E+00
     chi_2_3=  0.251299768416528E-05 + i0.000000000000000E+00
     chi_3_3=  0.955871303580782E+01 + i0.000000000000000E+00
     Possible peak at      0.65470000 Ry;  Intensity=   0.68E+02
     Possible peak at      0.70610000 Ry;  Intensity=   0.34E+02
 
     TDDFPT_PP    :      0.29s CPU      0.32s WALL

 
   This run was terminated on:  17:39: 2   5Sep2018            

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   JOB DONE.
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