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dx0620

木虫 (正式写手)

[求助] pwscf算电声耦合,出现root not converged之类的错误

如题,前两步自洽计算很好,但是到电声耦合那步就出现问题了,输出文件到原子位移那,确定了有12个不可约表示,然后进行第一个的计算,就开始出现如下信息:


     Atomic displacements:
     There are  12 irreducible representations

     Representation     1      1 modes -A_g  To be done

     Representation     2      1 modes -A_g  To be done

     Representation     3      1 modes -A_g  To be done

     Representation     4      1 modes -A_g  To be done

     Representation     5      1 modes -B_g  To be done

     Representation     6      1 modes -B_g  To be done

     Representation     7      1 modes -A_u  To be done

     Representation     8      1 modes -A_u  To be done

     Representation     9      1 modes -B_u  To be done

     Representation    10      1 modes -B_u  To be done

     Representation    11      1 modes -B_u  To be done

     Representation    12      1 modes -B_u  To be done



     Alpha used in Ewald sum =   2.8000
     PHONON       :     4.86s CPU         9.03s WALL



     Representation #  1 mode #   1
     Self-consistent Calculation
     kpoint  26 ibnd  33 solve_linter: root not converged  0.733E+00
     kpoint  27 ibnd  33 solve_linter: root not converged  0.590E-01
     kpoint  28 ibnd  33 solve_linter: root not converged  0.520E-01
     kpoint  29 ibnd  31 solve_linter: root not converged  0.139E-01
     kpoint  30 ibnd  31 solve_linter: root not converged  0.132E-01
     kpoint  31 ibnd  33 solve_linter: root not converged  0.222E-01
     kpoint  32 ibnd  33 solve_linter: root not converged  0.116E-01
     kpoint  33 ibnd  34 solve_linter: root not converged  0.339E-01
     kpoint  34 ibnd  32 solve_linter: root not converged  0.986E-01
     kpoint  35 ibnd  32 solve_linter: root not converged  0.774E-01
     kpoint  36 ibnd  31 solve_linter: root not converged  0.371E-01
     kpoint  37 ibnd  32 solve_linter: root not converged  0.849E-01
     kpoint  38 ibnd  33 solve_linter: root not converged  0.376E-01
     kpoint  39 ibnd  33 solve_linter: root not converged  0.494E-01
     kpoint  40 ibnd  33 solve_linter: root not converged  0.433E+00
     kpoint  41 ibnd  32 solve_linter: root not converged  0.215E-01
     kpoint  42 ibnd  33 solve_linter: root not converged  0.413E-01
     kpoint  43 ibnd  33 solve_linter: root not converged  0.447E-01
     kpoint  44 ibnd  33 solve_linter: root not converged  0.111E+00
     kpoint  45 ibnd  31 solve_linter: root not converged  0.135E-01
     kpoint  46 ibnd  33 solve_linter: root not converged  0.344E-01
     kpoint  47 ibnd  33 solve_linter: root not converged  0.542E-01
     kpoint  48 ibnd  33 solve_linter: root not converged  0.270E-01
     kpoint  49 ibnd  35 solve_linter: root not converged  0.699E-01
     kpoint  50 ibnd  35 solve_linter: root not converged  0.105E+00
     kpoint  51 ibnd  34 solve_linter: root not converged  0.345E-01
     kpoint  52 ibnd  33 solve_linter: root not converged  0.749E-01
     kpoint  53 ibnd  35 solve_linter: root not converged  0.705E-01
     kpoint  54 ibnd  35 solve_linter: root not converged  0.116E+00
     kpoint  55 ibnd  33 solve_linter: root not converged  0.249E+00
     kpoint  56 ibnd  33 solve_linter: root not converged  0.111E+01
     kpoint  57 ibnd  34 solve_linter: root not converged  0.178E-01
     kpoint  58 ibnd  33 solve_linter: root not converged  0.238E-01
     kpoint  59 ibnd  32 solve_linter: root not converged  0.138E-01
     kpoint  60 ibnd  31 solve_linter: root not converged  0.556E-01
     kpoint  61 ibnd  33 solve_linter: root not converged  0.114E+00
     kpoint  62 ibnd  33 solve_linter: root not converged  0.719E+00
     kpoint  63 ibnd  31 solve_linter: root not converged  0.210E+00
     kpoint  64 ibnd  29 solve_linter: root not converged  0.131E-01
     kpoint  65 ibnd  37 solve_linter: root not converged  0.227E-01
     kpoint  66 ibnd  35 solve_linter: root not converged  0.265E-01
     kpoint  67 ibnd  35 solve_linter: root not converged  0.240E+00
     kpoint  68 ibnd  33 solve_linter: root not converged  0.209E+00
     kpoint  69 ibnd  35 solve_linter: root not converged  0.131E-01
     kpoint  70 ibnd  35 solve_linter: root not converged  0.430E-01
     kpoint  71 ibnd  35 solve_linter: root not converged  0.596E-01
     kpoint  72 ibnd  33 solve_linter: root not converged  0.290E-01
     kpoint  73 ibnd  35 solve_linter: root not converged  0.729E-01
     kpoint  74 ibnd  35 solve_linter: root not converged  0.175E-01
     kpoint  75 ibnd  31 solve_linter: root not converged  0.165E-01
     kpoint  76 ibnd  33 solve_linter: root not converged  0.272E+01
     kpoint  77 ibnd  33 solve_linter: root not converged  0.388E-01
     kpoint  78 ibnd  33 solve_linter: root not converged  0.788E+00
     kpoint  79 ibnd  33 solve_linter: root not converged  0.238E+01
     kpoint  80 ibnd  29 solve_linter: root not converged  0.452E-01
     kpoint  81 ibnd  30 solve_linter: root not converged  0.108E+01
     kpoint  82 ibnd  30 solve_linter: root not converged  0.142E-01
     kpoint  83 ibnd  30 solve_linter: root not converged  0.435E-01
     kpoint  84 ibnd  30 solve_linter: root not converged  0.564E+00
     kpoint  85 ibnd  32 solve_linter: root not converged  0.151E-01
     kpoint  86 ibnd  33 solve_linter: root not converged  0.933E-01
     kpoint  87 ibnd  33 solve_linter: root not converged  0.214E+00
     kpoint  88 ibnd  33 solve_linter: root not converged  0.266E-01
     kpoint  89 ibnd  33 solve_linter: root not converged  0.646E-01
     kpoint  90 ibnd  33 solve_linter: root not converged  0.132E+00
     kpoint  91 ibnd  33 solve_linter: root not converged  0.206E+00
     kpoint  92 ibnd  33 solve_linter: root not converged  0.468E-01
     kpoint  93 ibnd  35 solve_linter: root not converged  0.249E-01
     kpoint  94 ibnd  33 solve_linter: root not converged  0.376E-01
     kpoint  95 ibnd  33 solve_linter: root not converged  0.456E+01
     kpoint  96 ibnd  32 solve_linter: root not converged  0.356E-01
     kpoint  97 ibnd  35 solve_linter: root not converged  0.112E+00
     kpoint  98 ibnd  35 solve_linter: root not converged  0.574E+00
     kpoint  99 ibnd  35 solve_linter: root not converged  0.229E-01
     kpoint 100 ibnd  31 solve_linter: root not converged  0.662E-01

     Pert. #  1: Fermi energy shift (Ry) =     0.2740E+01     0.1110E-15

      iter #   1 total cpu time :   680.1 secs   av.it.: 130.6
      thresh= 0.100E-01 alpha_mix =  0.700 |ddv_scf|^2 =  0.751E-03
     kpoint  26 ibnd  33 solve_linter: root not converged  0.674E-01
     kpoint  27 ibnd  33 solve_linter: root not converged  0.578E-02
     kpoint  28 ibnd  33 solve_linter: root not converged  0.384E-01
每一步迭代都有这么100个信息

我的输入文件如下:

Electron-phonon coefficients for Bi
&inputph
    tr2_ph=1.0d-13,
    prefix='Bi',
    fildvscf='Bidv'
    amass(1)=208.98,
    outdir='$TMP_DIR',
    fildyn='Bi.dyn',
    electron_phonon='interpolated',
    trans=.true.,
    ldisp=.true.
    nq1=4, nq2=3, nq3=3
/
EOF
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lsdwrk

新虫 (小有名气)

要给出详细的计算脚本才知道哪里出错,给我发一下,我帮你跑一下......
2楼2014-05-09 22:18:06
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lsdwrk

新虫 (小有名气)

提示不收敛一般和设置有关.......
3楼2014-05-09 22:18:50
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dx0620

木虫 (正式写手)

引用回帖:
2楼: Originally posted by lsdwrk at 2014-05-09 22:18:06
要给出详细的计算脚本才知道哪里出错,给我发一下,我帮你跑一下......

呵呵,谢谢你啊,我解决了,这个问题有点tricky。不知道bin文件夹的pw.x软连接怎么就没了,然后我连接错了,结果前两步用pw.x的自洽没提示出错,到第三步才提示出错了。后来我给过来就可以了。

还是谢谢你啊
4楼2014-05-10 11:13:07
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winnie27

禁虫 (初入文坛)

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5楼2017-10-11 17:29:38
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EveQin

新虫 (小有名气)

引用回帖:
4楼: Originally posted by dx0620 at 2014-05-10 11:13:07
呵呵,谢谢你啊,我解决了,这个问题有点tricky。不知道bin文件夹的pw.x软连接怎么就没了,然后我连接错了,结果前两步用pw.x的自洽没提示出错,到第三步才提示出错了。后来我给过来就可以了。

还是谢谢你啊:ha ...

您好,我也遇到了这个问题,请问您所说的pw.x的软连接没了是什么意思呢?
6楼2021-01-07 14:08:30
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