[QE-users] Fortran run time error while using q2r.x

[Pooja Vyas]

Dear users,
I'm doing phonon calculation for CaO with following input script:

#!/bin/sh
for a in 6.1141
do
for NK in 11
do
cat > ${a}.in << EOF
 &control
    calculation = 'scf',
    prefix = '${a}'
    tprnfor=.true.
    tstress=.true.
    verbosity='high'
    outdir = '/home/user/qha1/'
    pseudo_dir = '/home/user/qha1/pseudo/'
 /
 &system
    ibrav =  2,
    celldm(1) = $a,
    nat =  2,
    ntyp = 2,
    ecutwfc = 100,
/
&electrons
    diagonalization='david'
    mixing_mode = 'plain'
    mixing_beta = 0.7
    conv_thr =  1.0d-8
 /

ATOMIC_SPECIES

Ca 40.078  Ca.pbe-nsp-van.UPF
O 15.999 O.pbe-van_ak.UPF

ATOMIC_POSITIONS
Ca 0.0 0.0 0.0
O 0.50 0.50 0.50

K_POINTS (automatic)
  $NK $NK $NK 1 1 1
---
ciao
 &inputph
  tr2_ph=1.0d-12,
  prefix='${a}',
  fildyn='${a}.dyn',
  ldisp=.TRUE.
  fildyn='${a}.dyn',
  nq1=4, nq2=4, nq3=4,
/
&input
fildyn='${a}.dyn',
zasr='simple',
flfrc='${a}.fc'
/
EOF
mpirun -np 40 -machinefile x1 /apps/codes/qe/6.4/bin/q2r.x < ${a}.in >
 ${a}q2r.out
done
done

The above script runs well for q2r.x for nq1=nq2=nq3=4 but for
nq1=nq2=nq3=6, following error is displayed:
At line 273 of file io_dyn_mat_old.f90 (unit = 1, file = '6.1141.dyn3')
Fortran runtime error: Bad real number in item 3 of list input
--------------------------------------------------------------------------
mpirun detected that one or more processes exited with non-zero status,
thus causing
the job to be terminated. The first process to do so was:

  Process name: [[26690,1],0]
  Exit code:    2
--------------------------------------------------------------------------

*Any kind of help is appreciated.*
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