[QE-users] fft order too large

Paolo Giannozzi p.giannozzi at gmail.com
Wed Apr 24 22:35:44 CEST 2019


There is a check on FFT dimensions exceeding a maximum value of 2049. There
is no deep reason for that, just the assumption that such a large value
cannot be due to other than a mistake in the input data. You may easily
increase that limit (if you really need more than 2049: do you? sure?) by
editing FFTXlib/fft_param.f90

Paolo

On Wed, Apr 24, 2019 at 4:48 PM Thomas Brumme <thomas.brumme at uni-leipzig.de>
wrote:

> Dear all,
>
> I have a problem running some old input with newer version of QE.
> I'm always getting, nearly at the beginning of the run, right after:
>
>       Subspace diagonalization in iterative solution of the eigenvalue
> problem:
>       a serial algorithm will be used
>
> the error:
>
>
>   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>       Error in routine  good_fft_order (2050):
>        fft order too large
>
>   %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> The very same input is running with versions 6.1, 6.2.1, 6.2.2.
> It stops working with some dev version after 6.3 and is not working
> with version 6.4.1.
>
> I have absolutely no clue why it is not working. I'll paste the input
> below. Even if it is a large system I would call it a MWE as the
> calculation
> is not starting.
>
> Um, and all versions I tested where compiled with the ifort version 18.0.3
> using the intel mkl and scalapack libraries.
>
> Thanks for your help!
>
> Thomas
>
> Input:
>
> &control
>   calculation   = 'relax',
>   restart_mode  = 'from_scratch',
>   prefix        = '2Pb_line_1',
>   wf_collect    = .true.,
>   pseudo_dir    = '/home/tbrumme/structures/IrTe2/',
>   outdir        = '/scratch/tbrumme/',
>   verbosity     = 'high',
>   nstep         = 300,
>   tefield       = .true.,
>   dipfield      = .true.,
> /
> &system
>   ibrav       = 0,
>   nat         = 158,
>   ntyp        = 3,
>   ecutwfc     = 60,
>   ecutrho     = 480,
>   occupations = 'smearing',
>   smearing    = 'gauss',
>   degauss     = 0.05,
>   vdw_corr    = 'DFT-D3',
> lspinorb=.true.
> noncolin=.TRUE.
>   emaxpos     = 0.5,
>   eopreg      = 0.03,
>   edir        = 3,
>   eamp        = 0.0,
> /
> &electrons
>   electron_maxstep = 250,
>   diagonalization  = 'david',
>   mixing_mode      = 'plain',
>   mixing_beta      = 0.2,
>   conv_thr         = 1.0d-8,
> /
> &IONS
>   ion_dynamics='bfgs',
> /
> CELL_PARAMETERS angstrom
> 51.11990000       0.00000000       0.00000000
>   0.00000000      13.62188678       0.00000000
>   0.00000000       0.00000000      20.00000000
> ATOMIC_SPECIES
>   Ir  192.2173 Ir.rel-pbe-spn-kjpaw_psl.1.0.0.UPF
>   Te  127.603  Te.rel-pbe-n-kjpaw_psl.1.0.0.UPF
>   Pb  207.2    Pb.rel-pbe-dn-kjpaw_psl.1.0.0.UPF
> ATOMIC_POSITIONS angstrom
> Ir       0.00000000       0.00000000       0.00000000
> Te       1.96615000       1.13515723       1.34927500
> Te       1.96615000      -1.13515723      -1.34927500
> Ir      -1.96615000       3.40547170       0.00000000
> Te       0.00000000      -2.27031446       1.34927500
> Te       0.00000000       2.27031446      -1.34927500
> Ir       0.00000000      -6.81094339       0.00000000
> Te       1.96615000      -5.67578616       1.34927500
> Te       1.96615000       5.67578616      -1.34927500
> Ir      -1.96615000      -3.40547170       0.00000000
> Te       0.00000000       4.54062893       1.34927500
> Te       0.00000000      -4.54062893      -1.34927500
> Ir       3.93230000      -6.81094339       0.00000000
> Te       5.89845000      -5.67578616       1.34927500
> Te       5.89845000       5.67578616      -1.34927500
> Ir       1.96615000      -3.40547170       0.00000000
> Te       3.93230000       4.54062893       1.34927500
> Te       3.93230000      -4.54062893      -1.34927500
> Ir       3.93230000       0.00000000       0.00000000
> Te       5.89845000       1.13515723       1.34927500
> Te       5.89845000      -1.13515723      -1.34927500
> Ir       1.96615000       3.40547170       0.00000000
> Te       3.93230000      -2.27031446       1.34927500
> Te       3.93230000       2.27031446      -1.34927500
> Ir       7.86460000      -6.81094339       0.00000000
> Te       9.83075000      -5.67578616       1.34927500
> Te       9.83075000       5.67578616      -1.34927500
> Ir       5.89845000      -3.40547170       0.00000000
> Te       7.86460000       4.54062893       1.34927500
> Te       7.86460000      -4.54062893      -1.34927500
> Ir       7.86460000       0.00000000       0.00000000
> Te       9.83075000       1.13515723       1.34927500
> Te       9.83075000      -1.13515723      -1.34927500
> Ir       5.89845000       3.40547170       0.00000000
> Te       7.86460000      -2.27031446       1.34927500
> Te       7.86460000       2.27031446      -1.34927500
> Ir      11.79690000      -6.81094339       0.00000000
> Te      13.76305000      -5.67578616       1.34927500
> Te      13.76305000       5.67578616      -1.34927500
> Ir       9.83075000      -3.40547170       0.00000000
> Te      11.79690000       4.54062893       1.34927500
> Te      11.79690000      -4.54062893      -1.34927500
> Ir      11.79690000       0.00000000       0.00000000
> Te      13.76305000       1.13515723       1.34927500
> Te      13.76305000      -1.13515723      -1.34927500
> Ir       9.83075000       3.40547170       0.00000000
> Te      11.79690000      -2.27031446       1.34927500
> Te      11.79690000       2.27031446      -1.34927500
> Ir      15.72920000      -6.81094339       0.00000000
> Te      17.69535000      -5.67578616       1.34927500
> Te      17.69535000       5.67578616      -1.34927500
> Ir      13.76305000      -3.40547170       0.00000000
> Te      15.72920000       4.54062893       1.34927500
> Te      15.72920000      -4.54062893      -1.34927500
> Ir      15.72920000       0.00000000       0.00000000
> Te      17.69535000       1.13515723       1.34927500
> Te      17.69535000      -1.13515723      -1.34927500
> Ir      13.76305000       3.40547170       0.00000000
> Te      15.72920000      -2.27031446       1.34927500
> Te      15.72920000       2.27031446      -1.34927500
> Ir      19.66150000      -6.81094339       0.00000000
> Te      21.62765000      -5.67578616       1.34927500
> Te      21.62765000       5.67578616      -1.34927500
> Ir      17.69535000      -3.40547170       0.00000000
> Te      19.66150000       4.54062893       1.34927500
> Te      19.66150000      -4.54062893      -1.34927500
> Ir      19.66150000       0.00000000       0.00000000
> Te      21.62765000       1.13515723       1.34927500
> Te      21.62765000      -1.13515723      -1.34927500
> Ir      17.69535000       3.40547170       0.00000000
> Te      19.66150000      -2.27031446       1.34927500
> Te      19.66150000       2.27031446      -1.34927500
> Ir      23.59380000      -6.81094339       0.00000000
> Te      25.55995000      -5.67578616       1.34927500
> Te      25.55995000       5.67578616      -1.34927500
> Ir      21.62765000      -3.40547170       0.00000000
> Te      23.59380000       4.54062893       1.34927500
> Te      23.59380000      -4.54062893      -1.34927500
> Ir      23.59380000       0.00000000       0.00000000
> Te      25.55995000       1.13515723       1.34927500
> Te      25.55995000      -1.13515723      -1.34927500
> Ir      21.62765000       3.40547170       0.00000000
> Te      23.59380000      -2.27031446       1.34927500
> Te      23.59380000       2.27031446      -1.34927500
> Ir     -23.59380000      -6.81094339       0.00000000
> Te     -21.62765000      -5.67578616       1.34927500
> Te     -21.62765000       5.67578616      -1.34927500
> Ir     -25.55995000      -3.40547170       0.00000000
> Te     -23.59380000       4.54062893       1.34927500
> Te     -23.59380000      -4.54062893      -1.34927500
> Ir     -23.59380000       0.00000000       0.00000000
> Te     -21.62765000       1.13515723       1.34927500
> Te     -21.62765000      -1.13515723      -1.34927500
> Ir     -25.55995000       3.40547170       0.00000000
> Te     -23.59380000      -2.27031446       1.34927500
> Te     -23.59380000       2.27031446      -1.34927500
> Ir     -19.66150000      -6.81094339       0.00000000
> Te     -17.69535000      -5.67578616       1.34927500
> Te     -17.69535000       5.67578616      -1.34927500
> Ir     -21.62765000      -3.40547170       0.00000000
> Te     -19.66150000       4.54062893       1.34927500
> Te     -19.66150000      -4.54062893      -1.34927500
> Ir     -19.66150000       0.00000000       0.00000000
> Te     -17.69535000       1.13515723       1.34927500
> Te     -17.69535000      -1.13515723      -1.34927500
> Ir     -21.62765000       3.40547170       0.00000000
> Te     -19.66150000      -2.27031446       1.34927500
> Te     -19.66150000       2.27031446      -1.34927500
> Ir     -15.72920000      -6.81094339       0.00000000
> Te     -13.76305000      -5.67578616       1.34927500
> Te     -13.76305000       5.67578616      -1.34927500
> Ir     -17.69535000      -3.40547170       0.00000000
> Te     -15.72920000       4.54062893       1.34927500
> Te     -15.72920000      -4.54062893      -1.34927500
> Ir     -15.72920000       0.00000000       0.00000000
> Te     -13.76305000       1.13515723       1.34927500
> Te     -13.76305000      -1.13515723      -1.34927500
> Ir     -17.69535000       3.40547170       0.00000000
> Te     -15.72920000      -2.27031446       1.34927500
> Te     -15.72920000       2.27031446      -1.34927500
> Ir     -11.79690000      -6.81094339       0.00000000
> Te      -9.83075000      -5.67578616       1.34927500
> Te      -9.83075000       5.67578616      -1.34927500
> Ir     -13.76305000      -3.40547170       0.00000000
> Te     -11.79690000       4.54062893       1.34927500
> Te     -11.79690000      -4.54062893      -1.34927500
> Ir     -11.79690000       0.00000000       0.00000000
> Te      -9.83075000       1.13515723       1.34927500
> Te      -9.83075000      -1.13515723      -1.34927500
> Ir     -13.76305000       3.40547170       0.00000000
> Te     -11.79690000      -2.27031446       1.34927500
> Te     -11.79690000       2.27031446      -1.34927500
> Ir      -7.86460000      -6.81094339       0.00000000
> Te      -5.89845000      -5.67578616       1.34927500
> Te      -5.89845000       5.67578616      -1.34927500
> Ir      -9.83075000      -3.40547170       0.00000000
> Te      -7.86460000       4.54062893       1.34927500
> Te      -7.86460000      -4.54062893      -1.34927500
> Ir      -7.86460000       0.00000000       0.00000000
> Te      -5.89845000       1.13515723       1.34927500
> Te      -5.89845000      -1.13515723      -1.34927500
> Ir      -9.83075000       3.40547170       0.00000000
> Te      -7.86460000      -2.27031446       1.34927500
> Te      -7.86460000       2.27031446      -1.34927500
> Ir      -3.93230000      -6.81094339       0.00000000
> Te      -1.96615000      -5.67578616       1.34927500
> Te      -1.96615000       5.67578616      -1.34927500
> Ir      -5.89845000      -3.40547170       0.00000000
> Te      -3.93230000       4.54062893       1.34927500
> Te      -3.93230000      -4.54062893      -1.34927500
> Ir      -3.93230000       0.00000000       0.00000000
> Te      -1.96615000       1.13515723       1.34927500
> Te      -1.96615000      -1.13515723      -1.34927500
> Ir      -5.89845000       3.40547170       0.00000000
> Te      -3.93230000      -2.27031446       1.34927500
> Te      -3.93230000       2.27031446      -1.34927500
> Pb       0.00000000       0.00000000       3.210853292
> Pb       3.93230000       0.00000000       3.210853292
> K_POINTS automatic
> 2 8 1 0 0 0
>
> --
> Dr. rer. nat. Thomas Brumme
> Wilhelm-Ostwald-Institute for Physical and Theoretical Chemistry
> Leipzig University
> Phillipp-Rosenthal-Strasse 31
> 04103 Leipzig
>
> Tel:  +49 (0)341 97 36456
>
> email: thomas.brumme at uni-leipzig.de
>
> _______________________________________________
> Quantum Espresso is supported by MaX (www.max-centre.eu/quantum-espresso)
> users mailing list users at lists.quantum-espresso.org
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-- 
Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222
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