[Pw_forum] Error in the NEB calculations using QE 4.3

[WANG Wei]

Dear QE users,

I have no idea about calculating NEB with QE 4.3.

I used the following commands to perform NEB calculations, but error
occurred

*~/bin/neb.x <neb.in> log.neb*

error information is:

* NO input file found, assuming nothing to parse.
 Searching argument -input_images or --input_images
 Number of input images:             0
[0] MPI Abort by user Aborting program !
[0] Aborting program!*


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
BEGIN
BEGIN_PATH_INPUT
&PATH
  restart_mode      = 'from_scratch'
  string_method     = 'neb',
  nstep_path        = 20,
  ds                = 2.D0,
  opt_scheme        = "broyden",
  num_of_images     = 7,
  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         = "./",
  pseudo_dir   = "/home/wangvei/works/quantum-espresso/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
  pot_extrapolation = "second_order",
  wfc_extrapolation = "second_order",
/
ATOMIC_SPECIES
H  1.00794  HUSPBE.RRKJ3
K_POINTS { gamma }
CELL_PARAMETERS { cubic }
  12.00000  0.00000  0.00000
   0.00000  5.00000  0.00000
   0.00000  0.00000  5.00000
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
END_ENGINE_INPUT
END

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

+---------------------------------------------------------+
Kawazoe's Lab
Institute for Materials Research (IMR),
Tohoku University2-1-1 Katahira, Aoba-ku, Sendai, Japan
Phone: +81-022-215-2057
Fax:   +81-022-215-2052
+---------------------------------------------------------+
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