[Pw_forum] Ph.x code help

Vincenzo Verdolino vincenzo.verdolino at gmail.com
Tue Aug 26 18:12:14 CEST 2014


Quick question

Is the Pseudo Potential the one suggested in the test input file? I see you are usin a pz one...i don't know but could you double check that??

Sent from my iPhone

> On 26/ago/2014, at 17:53, "Samin, Adib J." <samin.2 at buckeyemail.osu.edu> wrote:
> 
> Dear Quantum Espresso Users,
> 
> Thanks again for all your help. I was finally able to run the ph.x code but I am still not generating the dynamical matrix but rather a blank file.
> I have attached the output of the ph.x code for the input files below. Any help on this matter would be appraciated.
> 
> Atomic displacements:
>     There are   2 irreducible representations
> 
>     Representation     1      3 modes -T_2g G_25' G_5+  To be done
> 
>     Representation     2      3 modes -T_1u G_15  G_4-  Not done in this run
> 
>     Compute atoms:     1,    2,
> 
> 
> 
>     Alpha used in Ewald sum =   0.7000
>     PHONON       :     0.56s CPU         0.61s WALL
> 
> 
> 
>     Representation #  1 modes #   1  2  3
> 
>     Self-consistent Calculation
> 
>      iter #   1 total cpu time :     0.9 secs   av.it.:   5.0
>      thresh= 0.100E-01 alpha_mix =  0.700 |ddv_scf|^2 =  0.189E-06
> 
>      iter #   2 total cpu time :     1.3 secs   av.it.:   9.5
>      thresh= 0.434E-04 alpha_mix =  0.700 |ddv_scf|^2 =  0.320E-08
> 
>      iter #   3 total cpu time :     1.7 secs   av.it.:   9.5
>      thresh= 0.566E-05 alpha_mix =  0.700 |ddv_scf|^2 =  0.278E-10
> 
>      iter #   4 total cpu time :     2.1 secs   av.it.:   8.8
>      thresh= 0.528E-06 alpha_mix =  0.700 |ddv_scf|^2 =  0.296E-13
> 
>      iter #   5 total cpu time :     2.5 secs   av.it.:   9.4
>      thresh= 0.172E-07 alpha_mix =  0.700 |ddv_scf|^2 =  0.287E-15
> 
>     End of self-consistent calculation
> 
>     Convergence has been achieved 
> 
>     Stopping because representation    2 is not done
> 
> 
> Thanks,
> 
> Adib Samin
> 
> 
> Adib Samin
> Postdoc
> The Department of Aerospace and Mechanical Engineering
> The Ohio State University
> 
> 
> 
> ________________________________________
> From: pw_forum-bounces at pwscf.org <pw_forum-bounces at pwscf.org> on behalf of Samin, Adib J. <samin.2 at buckeyemail.osu.edu>
> Sent: Tuesday, August 26, 2014 11:08 AM
> To: PWSCF Forum
> Subject: Re: [Pw_forum] Ph.x code help
> 
> Thank you so much for all your help. I was finally able to run the code by reducing the number of processors being used.
> I still have one question however. The si.dynG file I am creating seems to be a blank file. Is that correct?
> I am currently attempting to run dynmat.x to diagonalize the matrix but I am concerned because I don't see the matrix.
> 
> Thanks,
> 
> Adib Samin
> 
> 
> 
> 
> 
> 
> ________________________________________
> From: pw_forum-bounces at pwscf.org <pw_forum-bounces at pwscf.org> on behalf of Vincenzo Verdolino <vincenzo.verdolino at gmail.com>
> Sent: Tuesday, August 26, 2014 10:53 AM
> To: PWSCF Forum
> Subject: Re: [Pw_forum] Ph.x code help
> 
> 12 pros is fine for the scf but try to change it for ph.x
> 
> Sent from my iPhone
> 
>> On 26/ago/2014, at 16:19, "Samin, Adib J." <samin.2 at buckeyemail.osu.edu> wrote:
>> 
>> Thank you for your response. I am still getting errors running the code. I am indeed running it in parallel using 12 processors. How do I check for the consistencies mentioned below?
>> Any clarification would be greatly appreciated.
>> 
>> Thanks,
>> 
>> Adib Samin
>> 
>> 
>> 
>> 
>> 
>> 
>> ________________________________________
>> From: pw_forum-bounces at pwscf.org <pw_forum-bounces at pwscf.org> on behalf of Ari P Seitsonen <Ari.P.Seitsonen at iki.fi>
>> Sent: Tuesday, August 26, 2014 9:59 AM
>> To: PWSCF Forum
>> Subject: Re: [Pw_forum] Ph.x code help
>> 
>> Dear Adib Samin,
>> 
>>  How did you try to run the example, parallellising over the
>> representations/q vectors? If yes, how many MPI tasks did you ask for, how
>> many partitions for the representations/q vectors? Please check whether
>> these are consistent.
>> 
>>    Greetings from Sunny Montrouge,
>> 
>>       apsi
>> 
>> -=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-=*=-
>>  Ari Paavo Seitsonen / Ari.P.Seitsonen at iki.fi / http://www.iki.fi/~apsi/
>>  Ecole Normale Supérieure (ENS), Département de Chimie, Paris
>>  Mobile (F) : +33 789 37 24 25    (CH) : +41 79 71 90 935
>> 
>> 
>>> On Tue, 26 Aug 2014, Samin, Adib J. wrote:
>>> 
>>> 
>>> Thank you for your help.
>>> 
>>> I have attached below the scf.in file. I hope that helps in diagnosing the
>>> problem.
>>> 
>>> &control
>>>   calculation='scf'
>>>   restart_mode='from_scratch',
>>>   pseudo_dir='./'
>>>   outdir='/nfs/11/osu7834/'
>>>   prefix='SIPH',
>>> /
>>> &system
>>>   ibrav=2, celldm(1)=10.20, nat=2, ntyp=1,
>>>   ecutwfc =16.0
>>> /
>>> &electrons
>>>   conv_thr =  1.0d-9
>>>   mixing_beta = 0.7
>>> /
>>> ATOMIC_SPECIES
>>> Si  28.0855 Si.pz-vbc.UPF
>>> ATOMIC_POSITIONS
>>> Si 0.00 0.00 0.00
>>> Si 0.25 0.25 0.25
>>> K_POINTS
>>>  10
>>>   0.1250000  0.1250000  0.1250000   1.00
>>>   0.1250000  0.1250000  0.3750000   3.00
>>>   0.1250000  0.1250000  0.6250000   3.00
>>>   0.1250000  0.1250000  0.8750000   3.00
>>>   0.1250000  0.3750000  0.3750000   3.00
>>>   0.1250000  0.3750000  0.6250000   6.00
>>>   0.1250000  0.3750000  0.8750000   6.00
>>>   0.1250000  0.6250000  0.6250000   3.00
>>>   0.3750000  0.3750000  0.3750000   1.00
>>>   0.3750000  0.3750000  0.6250000   3.00
>>> 
>>> 
>>> Thanks,
>>> 
>>> Adib Samin
>>> 
>>> 
>>> Adib Samin
>>> 
>>> Postdoc
>>> 
>>> The Department of Aerospace and Mechanical Engineering
>>> 
>>> The Ohio State University
>>> 
>>> 
>>> 
>>> 
>>>>>> 
>>> 
>>> 
>>> ____________________________________________________________________________
>>> From: pw_forum-bounces at pwscf.org <pw_forum-bounces at pwscf.org> on behalf of
>>> Vincenzo Verdolino <vincenzo.verdolino at gmail.com>
>>> Sent: Tuesday, August 26, 2014 5:38 AM
>>> To: PWSCF Forum
>>> Subject: Re: [Pw_forum] Ph.x code help
>>> Dear,
>>> 
>>> just make sure you
>>> 
>>> cp -r -f SIPH.save /nfs/11/osu7834/
>>> 
>>> sometimes it happens that your outir in the scf calculation is not the same
>>> specified in your ph.x calculation
>>> 
>>> could you also paste the scf.in job file?
>>> 
>>> thanks
>>> 
>>> vincenzo
>>> 
>>> 
>>> On Mon, Aug 25, 2014 at 10:07 PM, Samin, Adib J.
>>> <samin.2 at buckeyemail.osu.edu> wrote:
>>> 
>>>     Dear Quantum Espresso users,
>>> 
>>> 
>>>     I am trying to run the ph.x executable using a simple silicon
>>>     example which I found online. I first perform the scf
>>>     calculation and save the results and then use the same
>>>     outdirectory and prefix when running the ph.x code. However, I
>>>     keep getting the same error which says:
>>> 
>>>     'Error in routine image_q_irr (1):
>>> 
>>>       some images have no rapp'
>>> 
>>>     I have attached the ph input file.
>>> 
>>>     I would really appreciate it if someone can help explain to me
>>>     why this is happening.
>>> 
>>> 
>>> Phonons of Si at Gamma
>>> &inputph
>>> tr2_ph=1.0d-14,
>>> amass(1)=28.0855,
>>> prefix='SIPH',
>>> outdir='/nfs/11/osu7834/'
>>> fildyn='si.dynG',
>>> /
>>> 0.0 0.0 0.0
>>> 
>>> 
>>> 
>>>     Thanks,
>>> 
>>>     Adib Samin
>>> 
>>> 
>>> 
>>> 
>>>     Adib Samin
>>> 
>>>     Postdoc
>>> 
>>>     The Department of Aerospace and Mechanical Engineering
>>> 
>>>     The Ohio State University
>>> 
>>> 
>>> _______________________________________________
>>> Pw_forum mailing list
>>> Pw_forum at pwscf.org
>>> http://pwscf.org/mailman/listinfo/pw_forum
>> 
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