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stone8086

木虫 (初入文坛)

[求助] Vasp运行MD时候出错,请指教 已有2人参与

我用Vasp跑MD时候出错,具体错误提示如下:
32 T=     0. E= -.16286816E+04 F= -.16286823E+04 E0= -.16284598E+04  EK= 0.67858E-03 SP= -.21E+01 SK= 0.21E+01
Information: wavefunction orthogonal band  633  0.8729
Information: wavefunction orthogonal band  635  0.8865
Information: wavefunction orthogonal band  636  0.8940
Information: wavefunction orthogonal band  637  0.8753
Information: wavefunction orthogonal band  643  0.8900
Information: wavefunction orthogonal band  647  0.8826
bond charge predicted
prediction of wavefunctions
我的INCAR如下:
ENCUT = 400
LREAL = A
PREC = Normal
EDIFF =1E-5
ISMEAR = -1
SIGMA = 0.05
ALGO = Very Fast
MAXMIX = 40
ISYM = 0
NELMIN = 4

IBRION = 0
NSW = 2000
NWRITE = 0
LCHARG = .FALSE.
LWAVE = .FALSE.
TEBEG = 300
TEEND = 300
SMASS = 3
NBLOCK = 50
POTIM = 1.0
我的KPOINTS如下:
Automatic mesh
0
Monkhorst Pack
1  1  1
0. 0. 0.

POSCAR前几行如下:
66LiG-4                                 
   1.00000000000000     
    13.1169931479637007   -7.5838868262162800    0.0505785114140750
     0.0000000000000000   15.1699598489304996    0.0021408958425030
     0.0000000000000000    0.0000000000000000   22.8276199999999996
   H    B    C    Ca
    16    20   148    40
Direct
  0.5484694749764094  0.7039404178677020  0.7209983536701134
  0.5506827991325708  0.6942751135253076  0.8266551796766509
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yhw179

铁虫 (初入文坛)

我也遇到同样的问题,请大牛指教啊
2楼2014-05-15 17:14:13
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yhw179

铁虫 (初入文坛)

再次恳请诸位给个解决方案啊
3楼2014-05-19 13:33:47
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redhaier

金虫 (小有名气)

【答案】应助回帖

★ ★
liliangfang: 金币+2, 谢谢交流 2014-05-20 07:49:46
试试把INCAR 里的POTIM 改小一点,默认值是1,改成0.01试试。
4楼2014-05-19 23:44:46
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jx在路上

金虫 (著名写手)

请问你的问题是怎么解决的
5楼2017-01-07 10:14:02
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emilyoyang

木虫 (正式写手)

【答案】应助回帖

出现上面的错误  是因为你的time step设置的太大了。因为你体系中含有H原子,POTIM = 1.0 太大。
把POTIM 设置成0.5
6楼2017-01-07 13:13:43
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