[Pw_forum] Problem with NEB.x in QE-4.3

WANG Wei wonvein at gmail.com
Mon Jul 18 04:10:02 CEST 2011


Dear QE users,

When I performed a NEB test (example17) by using the command "neb.x -inp
H2+H.in  > H2+H.out", an error occurs:

parsing_file_name: H2+H.in
PGFIO-F-209/OPEN/unit=99/'OLD' specified for file which does not exist.
 File name = H2+H.in
 In source file path_gen_inputs.F90, at line number 27

By the way, the example17 is always failed.  I have no idea about it because
I am a new learner.

#######################################################
BEGIN
BEGIN_PATH_INPUT
&PATH
  restart_mode      = 'from_scratch'
  string_method     = 'neb',
  nstep_path        = 20,
  ds                = 2.D0,
  opt_scheme        = "broyden",
  num_of_images     = 11,
  k_max             = 0.3D0,
  k_min             = 0.2D0,
  CI_scheme         = "auto",
  path_thr          = 0.1D0,
/
END_PATH_INPUT
BEGIN_ENGINE_INPUT
&CONTROL
  prefix         = "H2+H"
  outdir         = "/home/wangvei/tmp",
  pseudo_dir     =
"/home/wangvei/works/quantum-espresso/espresso-4.3.1/pseudo",
/
&SYSTEM
  ibrav                  = 0,
  celldm(1)              = 1.D0,
  nat                    = 3,
  ntyp                   = 1,
  ecutwfc                = 20.0D0,
  ecutrho                = 100.0D0,
  nspin                  = 2,
  starting_magnetization = 0.5D0,
  occupations            = "smearing",
  degauss                = 0.03D0,
/
&ELECTRONS
  conv_thr    = 1.D-8,
  mixing_beta = 0.3D0,
/
&IONS
/
ATOMIC_SPECIES
H  1.00794  HUSPBE.RRKJ3
BEGIN_POSITIONS
FIRST_IMAGE
ATOMIC_POSITIONS { bohr }
H   -4.56670009      0.00000000      0.00000000  1  0  0
H    0.00000000      0.00000000      0.00000000  0  0  0
H    1.55776676      0.00000000      0.00000000  1  0  0
LAST_IMAGE
ATOMIC_POSITIONS { bohr }
H   -1.55776676      0.00000000      0.00000000
H    0.00000000      0.00000000      0.00000000
H    4.56670009      0.00000000      0.00000000
END_POSITIONS
K_POINTS { gamma }
CELL_PARAMETERS { cubic }
  12.00000  0.00000  0.00000
   0.00000  5.00000  0.00000
   0.00000  0.00000  5.00000
END_ENGINE_INPUT
END
#######################################################

Best Regards,
WANG <http://dict.youdao.com/search?q=new&keyfrom=E2Ctranslation>
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