------------------------------------------------------------------------
INPUT FILE DESCRIPTION

Program: d3.x / PWscf / Quantum Espresso
------------------------------------------------------------------------


========================================================================
NAMELIST: &INPUTPH

   ///---
      VARIABLES THAT MUST BE SPECIFIED
      
      +--------------------------------------------------------------------
      Variable:       fildrho
      
      Type:           CHARACTER
      Description:    The file containing the variation of the charge
                      density at the q point under consideration, this
                      file is produced by phonon.
      Default:        ' '
      +--------------------------------------------------------------------
      
      +--------------------------------------------------------------------
      Variable:       fild0rho
      
      Type:           CHARACTER
      Description:    The file containing the variation of the charge
                      density at q=0, this file is produced by phonon.
      Default:        ' '
      +--------------------------------------------------------------------
      
      +--------------------------------------------------------------------
      Variable:       amass(i), i=1,ntyp
      
      Type:           CHARACTER
      Description:    ionic masses [atomic mass units]
      +--------------------------------------------------------------------
      
   \\\---
   
   +--------------------------------------------------------------------
   Variable:       prefix
   
   Type:           CHARACTER
   Description:    prefix for file names
   Default:        'pwscf'
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       outdir
   
   Type:           CHARACTER
   Description:    scratch directory
   Default:        './'
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       fildyn
   
   Type:           CHARACTER
   Description:    The file where the derivative of the dynamical
                   matrix will be written
   Default:        'd3dyn'
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       ethr_ph
   
   Type:           REAL
   Description:    Threshold for iterative diagonalization
                   (accuracy in ryd of the calculated eigenvalues).
   Default:        1.0d-5
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       q0mode_todo(i), i=1,3*nat
   
   Type:           INTEGER
   Description:    This array contains the list of the q=0 modes that
                   will be computed. If q0mode_todo(1).eq.0 the
                   program will compute every q=0 mode.
   Status:         q0mode_todo is statically allocated to dimension 300
   Default:        0
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       wraux
   
   Type:           LOGICAL
   Description:    If .true. the program will write different terms
                   of the matrix on different files.
   Default:        .false.
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       recv
   
   Type:           LOGICAL
   Description:    Specify .true. for a recover run.
   Default:        .false.
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       istop
   
   Type:           INTEGER
   Default:        0
   Description:    If this number is set different from zero the
                   program will stop after the specified routine
                   and will write the partial result in the recover
                   file.
   +--------------------------------------------------------------------
   
   +--------------------------------------------------------------------
   Variable:       iverbosity
   
   Type:           INTEGER
   Default:        0
   Description:    type of printing ( 0 few, 1 all )
   +--------------------------------------------------------------------
   
===END OF NAMELIST======================================================