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骑英奔腾

铜虫 (小有名气)

[求助] pwscf运算过程中遇到的CRASH,求解决

我在计算过程中遇到这种CRASH的情况:
problems computing cholesky decomposition
请问这是什么回事
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骑英奔腾

铜虫 (小有名气)

引用回帖:
2楼: Originally posted by gemucai at 2013-03-13 10:03:15
原子挨得太近了,用XCRYSDEN检查一下

XCRYSDEN怎么检查出挨得太近,太远我知道会不成键。谢谢
3楼2013-03-13 13:23:51
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gemucai

木虫 (正式写手)

原子挨得太近了,用XCRYSDEN检查一下
2楼2013-03-13 10:03:15
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gemucai

木虫 (正式写手)

引用回帖:
3楼: Originally posted by 骑英奔腾 at 2013-03-13 13:23:51
XCRYSDEN怎么检查出挨得太近,太远我知道会不成键。谢谢...

一般出现problems computing cholesky decomposition是因为在优化过程中原子挨得太近,参见http://qe-forge.org/pipermail/pw_forum/2008-September/084655.html
当然,如果是赝势的问题就另当别论。还有,能给出输入文件吗?
4楼2013-03-13 14:28:00
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骑英奔腾

铜虫 (小有名气)

引用回帖:
4楼: Originally posted by gemucai at 2013-03-13 14:28:00
一般出现problems computing cholesky decomposition是因为在优化过程中原子挨得太近,参见http://qe-forge.org/pipermail/pw_forum/2008-September/084655.html
当然,如果是赝势的问题就另当别论。还有,能给出 ...

&control
    prefix='SCH3',
    calculation = "relax",
    restart_mode='from_scratch',
    pseudo_dir='/lustre/chengdj/pseudo',
    outdir='/lustre/chengdj/tmp',
/
&system   
    ibrav=0,
    nat=5,
    ntyp=3,
    ecutwfc = 40,
    ecutrho = 400,
    occupations='smearing',
    smearing='marzari-vanderbilt',
    degauss=0.002,
    nspin = 2,  
    starting_magnetization(1)=0.7,
    starting_magnetization(2)=0.7,
    starting_magnetization(3)=0.7,
/
&electrons
    conv_thr = 1.0e-6,
    mixing_mode='local-TF',
    mixing_beta = 0.1D0,
/
&IONS
  bfgs_ndim         = 3,
  pot_extrapolation = "second_order",
  wfc_extrapolation = "second_order",
/
CELL_PARAMETERS cubic
30.0  0.0  0.0
0.0 30.0  0.0
0.0  0.0 30.0
ATOMIC_SPECIES
C  12.010 C.pbe-rrkjus.UPF
S  32.070 S.pbe-van_bm.UPF
H  1.000  H.pbe-rrkjus.UPF
ATOMIC_POSITIONS angstrom
S        -1.79658497   1.27674743   .19925346
C        -.29557826    2.28143816    .31619436
H        -.48257659   3.16433075     1.01270872
H        .55603565   1.64569857      .72873392
H        -.01480890   2.66707342   -.71920603
K_POINTS gamma
5楼2013-03-13 18:56:29
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