[Pw_forum] Ph.x code help

Samin, Adib J. samin.2 at buckeyemail.osu.edu
Wed Aug 27 15:44:05 CEST 2014


Actually, I was running it with two processors on one node but after trying it with one processor it worked. So thanks again for all your help.

In any case, I was just doing this example to get familiar with the procedure and I am planning to use it for my own research. In that case the simulation will be more complicated involving many atoms. How would I know how many processors to use?

Is there a general rule of thumb that I can use to help guide me for the future?



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: Wednesday, August 27, 2014 3:53 AM
To: PWSCF Forum
Subject: Re: [Pw_forum] Ph.x code help

did you try to run both the scf and the ph.x job with 1 node and 1 proc?


On Tue, Aug 26, 2014 at 6:32 PM, Samin, Adib J. <samin.2 at buckeyemail.osu.edu<mailto:samin.2 at buckeyemail.osu.edu>> wrote:
Yes it is.

Thanks,

Adib Samin






________________________________________
From: pw_forum-bounces at pwscf.org<mailto:pw_forum-bounces at pwscf.org> <pw_forum-bounces at pwscf.org<mailto:pw_forum-bounces at pwscf.org>> on behalf of Vincenzo Verdolino <vincenzo.verdolino at gmail.com<mailto:vincenzo.verdolino at gmail.com>>
Sent: Tuesday, August 26, 2014 12:12 PM
To: PWSCF Forum
Subject: Re: [Pw_forum] Ph.x code help

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<mailto: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<http://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<http://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<http://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<http://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<http://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<mailto:pw_forum-bounces at pwscf.org> <pw_forum-bounces at pwscf.org<mailto:pw_forum-bounces at pwscf.org>> on behalf of Samin, Adib J. <samin.2 at buckeyemail.osu.edu<mailto: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<mailto:pw_forum-bounces at pwscf.org> <pw_forum-bounces at pwscf.org<mailto:pw_forum-bounces at pwscf.org>> on behalf of Vincenzo Verdolino <vincenzo.verdolino at gmail.com<mailto: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<mailto: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<mailto:pw_forum-bounces at pwscf.org> <pw_forum-bounces at pwscf.org<mailto:pw_forum-bounces at pwscf.org>> on behalf of Ari P Seitsonen <Ari.P.Seitsonen at iki.fi<mailto: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<mailto: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<tel:%2B33%20789%2037%2024%2025>    (CH) : +41 79 71 90 935<tel:%2B41%2079%2071%2090%20935>
>>
>>
>>> On Tue, 26 Aug 2014, Samin, Adib J. wrote:
>>>
>>>
>>> Thank you for your help.
>>>
>>> I have attached below the scf.in<http://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<mailto:pw_forum-bounces at pwscf.org> <pw_forum-bounces at pwscf.org<mailto:pw_forum-bounces at pwscf.org>> on behalf of
>>> Vincenzo Verdolino <vincenzo.verdolino at gmail.com<mailto: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<http://scf.in> job file?
>>>
>>> thanks
>>>
>>> vincenzo
>>>
>>>
>>> On Mon, Aug 25, 2014 at 10:07 PM, Samin, Adib J.
>>> <samin.2 at buckeyemail.osu.edu<mailto: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<mailto:Pw_forum at pwscf.org>
>>> http://pwscf.org/mailman/listinfo/pw_forum
>>
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