Hello,

I don't know which guide you are following, but there is not "fileps" variable in the inputpp namelist of epsilon.x

If you cannot find the output files, it may depend on the code failing or on your script being wrong, which I cannot know because you did not provide any od those.

kind regards


On 06/02/2026 21:59, Ebiyibo Collins Ouserigha wrote:
Dear Lorenzo,
Including noinv = .true. in my input file resulted in a successful simulation run for my epsilon.x calculation. However, I can not find the expected output data files (epsr.dat, epsi.dat, eels.dat and ieps.dat) in the working directory. I have included the line: fileps = ... epsr.dat, in my epsilon.x input file as shown below but it did not work out. I rather got an error message mark in red below.

  &inputpp
  calculation = 'eps',
  outdir = '/home/ecouserigha/MASnBr3_eps/out/',
  prefix = 'tmp',
fileps = '/home/ecouserigha/MASnBr3_eps/epsr.dat',

/

&energy_grid
  intersmear = 0.136
  intrasmear = 0
  nw = 600
  shift = 0
  smeartype = 'gauss'
  wmax = 30
  wmin = 0
/

Error in routine epsilon (5010):
     reading namelist INPUTPP

Please, can someone suggest how I can have the output data files from epsilon.x calculation in my working directory?

Many thanks,

Collins E. Ouserigha

On Thu, Jan 29, 2026 at 4:14 PM Lorenzo Paulatto <[email protected]> wrote:

    Hello,

    you may also need noinv=.true.

    kind regards


    On 29/01/2026 15:54, Ebiyibo Collins Ouserigha wrote:
    Good day all,

    I am trying to run epsilon.x calculation for MASnBr3. I keep
    getting errors. Below is the latest error i got from my calculation:

     Fermi energy [eV] is:  3.25765
         The system is a metal (occupations are not fixed)...

     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    Error in routine grid_build (2):
         non uniform kpt grid
     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    Even though I used an equally weighted k-point grid of  16 16 16
    and set nosym = .true. in my earlier nscf calculation run. Can
    someone please take a look at my eps input text below and nscf
    input file attached to advise me on what to do?

    &inputpp
      calculation = 'eps'
      outdir = '/home/ecouserigha/MASnBr3_eps/out/'
      prefix = 'tmp'
      !pseudo_dir = '/home/ecouserigha/MASnBr3_eps/pseudo/'
    /

    &energy_grid
      intersmear = 0.136
      intrasmear = 0
      nw = 600
      shift = 0
      smeartype = 'gauss'
      wmax = 30
      wmin = 0
    /

    Many thanks,

    Collins E. Ouserigha
    Postdoc Fellow
    UNESP, Brazil


    
_______________________________________________________________________________
    The Quantum ESPRESSO Foundation stands in solidarity with all civilians 
worldwide who are victims of terrorism, military aggression, and indiscriminate 
warfare.
    
--------------------------------------------------------------------------------
    Quantum ESPRESSO is supported by MaX (www.max-centre.eu 
<http://www.max-centre.eu>)
    users mailing [email protected]
    https://lists.quantum-espresso.org/mailman/listinfo/users
-- Dr. Lorenzo Paulatto
    IR IMPMC - CNRS UMR 7590 / Sorbonne Université / MNHN
    phone: +33 (0)1 442 79822 / telegram: lpaulatto
    people.impmc.fr/lpaulatto <http://people.impmc.fr/lpaulatto/> -
    anharmonic.github.io <https://anharmonic.github.io/>
    23-24/423 B115, 4 place Jussieu 75252 Paris CX 05
    
_______________________________________________________________________________
    The Quantum ESPRESSO Foundation stands in solidarity with all
    civilians worldwide who are victims of terrorism, military
    aggression, and indiscriminate warfare.
    
--------------------------------------------------------------------------------
    Quantum ESPRESSO is supported by MaX (www.max-centre.eu
    <http://www.max-centre.eu>)
    users mailing list [email protected]
    https://lists.quantum-espresso.org/mailman/listinfo/users


_______________________________________________________________________________
The Quantum ESPRESSO Foundation stands in solidarity with all civilians 
worldwide who are victims of terrorism, military aggression, and indiscriminate 
warfare.
--------------------------------------------------------------------------------
Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
users mailing [email protected]
https://lists.quantum-espresso.org/mailman/listinfo/users
--
Dr. Lorenzo Paulatto
IR IMPMC - CNRS UMR 7590 / Sorbonne Université / MNHN
phone: +33 (0)1 442 79822 / telegram: lpaulatto
http://www.impmc.upmc.fr/~paulatto/ - https://anharmonic.github.io/
23-24/423 B115, 4 place Jussieu 75252 Paris CX 05
_______________________________________________________________________________
The Quantum ESPRESSO Foundation stands in solidarity with all civilians 
worldwide who are victims of terrorism, military aggression, and indiscriminate 
warfare.
--------------------------------------------------------------------------------
Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
users mailing list [email protected]
https://lists.quantum-espresso.org/mailman/listinfo/users

Reply via email to