[QE-users] Error in routine diropn (34): can't open a connected unit

Dr. K. C. Bhamu kcbhamu85 at gmail.com
Sat Dec 5 17:49:36 CET 2020


Dear Dr. Lurii
My phonon band structure was not converged in 100 cycles.
I am getting below message in last few iterations:
     Pert. #  1: Fermi energy shift (Ry) =    -3.1160E+75    -9.3536E+49

      iter #  96 total cpu time : 40259.0 secs   av.it.: 280.8
      thresh= 1.000E-02 alpha_mix =  0.300 |ddv_scf|^2 =  2.136+147

What could be the possible issue?
Below are my ph.in and scf.in files:


&inputph
recover=.true.,
tr2_ph = 1.0d-12
prefix ='pwscf'
alpha_mix =0.3
ldisp = .true.,
trans=.true.,
nq1=1
nq2=4
nq3=4
outdir ='./tmp'
fildyn = 'slab.dyn'
/


scf.in

&CONTROL
                 calculation = 'scf'
                      outdir = './tmp'
                  pseudo_dir = '.'
                      prefix = 'pwscf'
                   verbosity = 'default'
               etot_conv_thr = 0.00001
               forc_conv_thr = 0.0001
                       nstep = 400
                     tstress = .true.
                     tprnfor = .true.

/

&SYSTEM
                       ibrav = 0
                    celldm(1)=42.3160703759d0,
                         nat = 15
                        ntyp = 3
                     ecutwfc = 85
                     ecutrho = 680
    starting_magnetization(1)= 1,
    occupations='smearing', smearing='mv', degauss=0.005,
    nspin=2,
    lda_plus_u=.true.  Hubbard_U(1)=5.5

 /
 &ELECTRONS
            electron_maxstep = 700
                    conv_thr = 1.0D-8
 /
&IONS
                ion_dynamics = 'bfgs'
 /
&CELL
/
ATOMIC_SPECIES
Ni     58.6934 ni_pbe_v1.4.uspp.F.UPF
H      1.00794 H.pbe-rrkjus_psl.1.0.0.UPF
O      15.9994 O.pbe-n-kjpaw_psl.0.1.UPF

ATOMIC_POSITIONS {crystal}
Ni            0.4086271180        0.2500000000        0.0562779067
Ni            0.5310297978        0.7500000000        0.1575988843
Ni            0.6555917806        0.2500000000        0.2252620504
H             0.3556718912        0.7500000000        0.7569475855
H             0.4905989850        0.2500000000        0.7519547270
H             0.6813126358        0.7500000000        0.8495914755
H             0.3051177957        0.2500000000        0.2908234852
H             0.4287025160        0.7500000000        0.4856771252
H             0.5663785349        0.2500000000        0.5842143961
O             0.3991582306        0.7500000000        0.7744084930
O             0.5245603948        0.2500000000        0.8820391483
O             0.6867859121        0.7500000000        1.0544632655
O             0.3217306969        0.2500000000        0.0997462181
O             0.4457256438        0.7500000000        0.2821321300
O             0.5751880668        0.2500000000        0.3748931091

CELL_PARAMETERS {alat}
  1.000000000000d0  0.000000000000d0  0.000000000000d0
  0.000000000000d0  0.142952837309d0  0.000000000000d0
  0.000000000000d0  0.000000000000d0  0.209983610730d0

K_POINTS automatic
1 4 4   0 0 0


Thank you very much.

Bhamu



On Tue, Dec 1, 2020 at 7:15 PM Timrov Iurii <iurii.timrov at epfl.ch> wrote:

> Dear Bhamu,
>
>
> Actually it is not a warning, it just tells you which Hubbard manifold in
> DFT+U is used (you can have 'atomic' and 'ortho-atomic' orbitals for the
> Hubbard manifold, and the Phonon+U code supports only 'atomic'). So yes you
> can continue the calculation, and in the publication you should specify
> that the atomic orbitals were used (without the Lowdin orthogonalization).
> You can have a look at this paper for more details:
>
> https://arxiv.org/abs/2010.13485
>
>
> Greetings,
>
> Iurii
>
>
> --
> Dr. Iurii TIMROV
> Postdoctoral Researcher
> STI - IMX - THEOS and NCCR - MARVEL
> Swiss Federal Institute of Technology Lausanne (EPFL)
> CH-1015 Lausanne, Switzerland
> +41 21 69 34 881
> http://people.epfl.ch/265334
> ------------------------------
> *From:* users <users-bounces at lists.quantum-espresso.org> on behalf of Dr.
> K. C. Bhamu <kcbhamu85 at gmail.com>
> *Sent:* Tuesday, December 1, 2020 2:37:16 PM
> *To:* Quantum ESPRESSO users Forum
> *Subject:* Re: [QE-users] Error in routine diropn (34): can't open a
> connected unit
>
> Dear Dr. Lurii,
> Thank you for the suggestion.
> Now the phonon calculation has started.
>
> I am getting a new warning now:
>
> Atomic wfc used for the projector on the Hubbard manifold are NOT
> orthogonalized
>
>      Calculating the dnsbare matrix...
>
>      Calculating the dnsorth_cart matrix...
>
> Can I ignore this warning?
>
> Thank you very much
> Bhamu
>
>
>
> On Tue, Dec 1, 2020 at 6:09 PM Timrov Iurii <iurii.timrov at epfl.ch> wrote:
>
>> Actually you need to remove this: fildvscf='dvscf'
>>
>> Also I would remove this: electron_phonon= " "
>>
>>
>> Iurii
>>
>>
>> --
>> Dr. Iurii TIMROV
>> Postdoctoral Researcher
>> STI - IMX - THEOS and NCCR - MARVEL
>> Swiss Federal Institute of Technology Lausanne (EPFL)
>> CH-1015 Lausanne, Switzerland
>> +41 21 69 34 881
>> http://people.epfl.ch/265334
>> ------------------------------
>> *From:* users <users-bounces at lists.quantum-espresso.org> on behalf of
>> Timrov Iurii <iurii.timrov at epfl.ch>
>> *Sent:* Tuesday, December 1, 2020 1:27:51 PM
>> *To:* Quantum Espresso users Forum
>> *Subject:* Re: [QE-users] Error in routine diropn (34): can't open a
>> connected unit
>>
>>
>> Can you share your PW and PH input and output files using Google Drive?
>> Did you check whether the PW calculation finished successfully?
>>
>>
>> If the PW calculation finished successfully, then you can try to remove
>> recover=.true. in the PH input and try again.
>>
>>
>> Greetings,
>>
>> Iurii
>> ------------------------------
>> *From:* users <users-bounces at lists.quantum-espresso.org> on behalf of
>> Dr. K. C. Bhamu <kcbhamu85 at gmail.com>
>> *Sent:* Tuesday, December 1, 2020 12:04:50 PM
>> *To:* Quantum Espresso users Forum
>> *Subject:* [QE-users] Error in routine diropn (34): can't open a
>> connected unit
>>
>> Dear Users
>> I am trying to calculate the phonon band structure of Ni(OH)2 slab on a
>> well converged scf.
>>
>> I am using QE version 6.6 (also tried 6.5 and 6.4.1). QE is compiled with
>> the mkl-2020.2.254 parallel library.
>> I am getting below error:
>>
>>      Error in routine diropn (34):
>>      can't open a connected unit
>>
>>  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>>
>>      stopping ...
>>
>> I have checked the mailing list but it could not help me.
>> For the bulk system, it is running well.
>>
>> Below are my qe.in and ph.in files:
>>
>> &CONTROL
>>                  calculation = 'scf'
>>                       outdir = './tmp'
>>                   pseudo_dir = './'
>>                       prefix = 'pwscf'
>>                    verbosity = 'default'
>>                etot_conv_thr = 0.00001
>>                forc_conv_thr = 0.0001
>>                        nstep = 400
>>                      tstress = .true.
>>                      tprnfor = .true.
>>
>> /
>>
>> &SYSTEM
>>                        ibrav = 0
>>                     celldm(1)=42.3160703759d0,
>>                          nat = 15
>>                         ntyp = 3
>>                      ecutwfc = 85
>>                      ecutrho = 680
>>     starting_magnetization(1)= 1,
>>     occupations='smearing', smearing='mv', degauss=0.005,
>>     nspin=2,
>>     lda_plus_u=.true.  Hubbard_U(1)=5.5
>>
>>  /
>>  &ELECTRONS
>>             electron_maxstep = 700
>>                     conv_thr = 1.0D-8
>>  /
>> &IONS
>>                 ion_dynamics = 'bfgs'
>>  /
>> &CELL
>> /
>> ATOMIC_SPECIES
>> Ni     58.6934 ni_pbe_v1.4.uspp.F.UPF
>> H      1.00794 H.pbe-rrkjus_psl.1.0.0.UPF
>> O      15.9994 O.pbe-n-kjpaw_psl.0.1.UPF
>>
>> ATOMIC_POSITIONS {crystal}
>> Ni            0.4086271180        0.2500000000        0.0562779067
>> Ni            0.5310297978        0.7500000000        0.1575988843
>> Ni            0.6555917806        0.2500000000        0.2252620504
>> H             0.3556718912        0.7500000000        0.7569475855
>> H             0.4905989850        0.2500000000        0.7519547270
>> H             0.6813126358        0.7500000000        0.8495914755
>> H             0.3051177957        0.2500000000        0.2908234852
>> H             0.4287025160        0.7500000000        0.4856771252
>> H             0.5663785349        0.2500000000        0.5842143961
>> O             0.3991582306        0.7500000000        0.7744084930
>> O             0.5245603948        0.2500000000        0.8820391483
>> O             0.6867859121        0.7500000000        1.0544632655
>> O             0.3217306969        0.2500000000        0.0997462181
>> O             0.4457256438        0.7500000000        0.2821321300
>> O             0.5751880668        0.2500000000        0.3748931091
>>
>> CELL_PARAMETERS {alat}
>>   1.000000000000d0  0.000000000000d0  0.000000000000d0
>>   0.000000000000d0  0.142952837309d0  0.000000000000d0
>>   0.000000000000d0  0.000000000000d0  0.209983610730d0
>>
>> K_POINTS automatic
>> 1 4 4   0 0 0
>>
>>
>> ph.in
>>
>> &inputph
>> recover=.true.,
>> tr2_ph = 1.0d-12
>> prefix ='pwscf'
>> alpha_mix =0.3
>> ldisp = .true.,
>> trans=.true.,
>> fildvscf='dvscf'
>> electron_phonon= " "
>> nq1=1
>> nq2=4
>> nq3=4
>> outdir ='./tmp'
>> fildyn = 'slab.dyn'
>> /
>>
>>
>> Any suggestion will be appreciated.
>>
>> Thank you very much.
>>
>>
>> K.C. Bhamu
>> Postdoctoral Fellow
>> University of Ulsan
>> ROK
>>
>> _______________________________________________
>> Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
>> users mailing list users at lists.quantum-espresso.org
>> https://lists.quantum-espresso.org/mailman/listinfo/users
>
> _______________________________________________
> Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
> users mailing list users at lists.quantum-espresso.org
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