Dear Jeames,

the fact that tetraheadra are used in the nscf run before dos.x seems to resonate with a bug that has been pointed out recently:

https://www.mail-archive.com/[email protected]/msg32918.html

that is mostly related to the use of QEXML fmt in 6.0 and 6.1. QE-6.2, using by default a different format (unless -D__OLDXML is specified), is unaffected...

take care
Andrea

      input that can be run in a reasonable time and an exact description of 
compilation options (serial, parallel MPI,
      parallel MPI+OpenMP) and kind of execution (number of processors etc.)


Good day Paolo,

Okay, so here are the input files for the tests I did on parallel MPI+OpenMP. 
Please let me know if you need anything else.

Parallel version (MPI & OpenMP), running on      12 processor cores
     Number of MPI processes:                 4
     Threads/MPI process:                     3

scf.in

&CONTROL
  calculation='scf',
  outdir='silicon',
  prefix='calc',
  pseudo_dir='.',
  verbosity='low',
  tstress=.false.,
  tprnfor=.false.,
/

&SYSTEM
  ibrav=2,
  celldm(1)=10.2623466921d0,
  nat=2,
  ntyp=1,
  ecutwfc=30.0d0,
  ecutrho=300.0d0,
  nbnd=10,
  input_dft='PBE',
/

&ELECTRONS
  diagonalization='david',
  conv_thr=1d-08,
  mixing_mode='plain',
  mixing_beta=0.700d0,
/

ATOMIC_SPECIES
  Si 28.085500d0 Si.pbe-n-rrkjus_psl.0.1.UPF

ATOMIC_POSITIONS {alat}
  Si   0.0000000000d0   0.0000000000d0   0.0000000000d0
  Si   0.2500000000d0   0.2500000000d0   0.2500000000d0

K_POINTS {automatic}
  9 9 9 0 0 0

 
 nscf.in

&CONTROL
  calculation='nscf',
  outdir='silicon',
  prefix='calc',
  pseudo_dir='.',
  verbosity='low',
  tstress=.false.,
  tprnfor=.false.,
/

&SYSTEM
  ibrav=2,
  celldm(1)=10.2623466921d0,
  nat=2,
  ntyp=1,
  ecutwfc=30.0d0,
  ecutrho=300.0d0,
  nbnd=10,
  input_dft='PBE',
  occupations='tetrahedra',
/

&ELECTRONS
  diagonalization='david',
  conv_thr=1d-08,
  mixing_mode='plain',
  mixing_beta=0.700d0,
/

ATOMIC_SPECIES
  Si 28.085500d0 Si.pbe-n-rrkjus_psl.0.1.UPF

ATOMIC_POSITIONS {alat}
  Si   0.0000000000d0   0.0000000000d0   0.0000000000d0
  Si   0.2500000000d0   0.2500000000d0   0.2500000000d0

K_POINTS {automatic}
  32 32 32 0 0 0


dos.in

&DOS
  outdir='silicon',
  prefix='calc',
  Emin=-10,
  Emax=20,
  DeltaE=0.05,
  fildos='silicon.dos', 

/ 

Best regards,
James

2017-11-13 6:24 GMT+09:00 Paolo Giannozzi <[email protected]>:

      On Sun, Nov 12, 2017 at 6:41 AM, Wilbert James Futalan 
<[email protected]> wrote:

this problem really gets on my nerves

reports of problems without needed information get on MY nerves. Please provide 
an input that can be run in a reasonable
time and an exact description of compilation options (serial, parallel MPI, 
parallel MPI+OpenMP) and kind of execution
(number of processors etc.) that lead to such problem

--
Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222




--
Engr. Wilbert James C. Futalan
Research Fellow I
Laboratory of Electrochemical EngineeringDepartment of Chemical Engineering
University of the Philippines - Diliman



--
Andrea Ferretti, PhD
S3 Center, Istituto Nanoscienze, CNR
via Campi 213/A, 41125, Modena, Italy
Tel: +39 059 2055322;  Skype: andrea_ferretti
URL: http://www.nano.cnr.it
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