Recently,i had a problem with Solve Anisotropic Eliashberg Equations, where no error file was reported after an interrupt to the calculation process and got stuck in the output line below. What could be the problem?
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     Pade approximant of anisotropic Eliashberg equations from imaginary-axis to real-axis
     Cutoff frequency wscut =     1.0000
    
        pade Re[znorm] [eV] Re[delta] [eV]
        554            NaN            NaN
 
     Convergence was reached for N =    554 Pade approximants
and the input files is :
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&inputepw
  prefix      =  '  '
  amass(1)    = ,
  outdir      = './outdir/'
  ep_coupling = .true.
  elph        = .true.
  kmaps       = .true.
  epwread     = .true.
  epwwrite = .false.
  wannierize  = .false. 
!  num_iter    = 0
  dis_froz_min= 
  dis_froz_max= 
  proj(1) = ' '
  wdata(1) = 'Begin Kpoint_Path'
  wdata(2) = 'G 0.00 0.00 0.00   M 0.00 0.50 0.00'
  wdata(3) = 'M 0.00 0.50 0.00   K 0.333 0.333 0.00'
  wdata(4) = 'K 0.333 0.333 0.0  G 0.00 0.00 0.00'
  wdata(5) = 'End Kpoint_Path'
  wdata(6) = 'bands_plot = .true.'
  wdata(7) = 'bands_num_points = 55'
  wdata(8) = 'guiding_centres = .true.'
  wdata(9) = 'dis_num_iter = 5000'
  bands_skipped = 'exclude_bands = 1:25'
 
  system_2d=.true.
  etf_mem     =  1 
  nbndsub     =  ,
  iverbosity  = 2
  eps_acustic = 2.0    ! Lowest boundary for the phonon frequency 
  ephwrite    = .true. ! Writes .ephmat files used when Eliasberg = .true.
  fsthick     = 0.1  ! eV
  degaussw    = 0.01 ! eV
  nsmear      = 1
  nqsmear     = 1
  delta_smear = 0.01 ! eV
  degaussq     = 0.5 ! meV
  nqstep       = 500
  eliashberg  = .true.
  laniso = .true.
  limag = .true.
  lpade = .true.
  conv_thr_iaxis = 1.0d-4
!  max_memlt = 1.40d0
!  asr_typ = 'crystal'
  delta_approx = .true.,
!  elecselfen = .true.,
  phonselfen = .true.,
!  a2f = .true. ,
  wscut = 1.0   ! eV   Upper limit over frequency integration/summation in the Elisashberg eq
  nstemp   = 11     ! Nr. of temps
  temps    = 3.00 13.00 ! K  provide list of temperetures OR (nstemp and temps = tempsmin  tempsmax for even space mode)
  nsiter   = 500
  muc     = 0.21246
  dvscf_dir   = '../../test-phonon/save'
 
  nk1         = 12
  nk2         = 12
  nk3         = 1
  nq1         = 6
  nq2         = 6
  nq3         = 1
!  mp_mesh_k = .true.
  nkf1 = 60
  nkf2 = 60
  nkf3 = 1
  nqf1 = 60
  nqf2 = 60
  nqf3 = 1
 /
Ihad try to change the "max_memlt" When I came across this problem ,But it's not this parameter. So how can I solve this problem,Thanks you ! Best wish!