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fagege2010

铁虫 (小有名气)

[求助] 出现了这个错误

*Warning* max. SCF cycles performed but system has not reached the groundstate.
  
Current total energy, E     =  -31296.82674049     eV
Current free energy (E-TS)  =  -31296.99898255     eV
(energies not corrected for finite basis set)

NB est. 0K energy (E-0.5TS)      =  -31296.91286152     eV

  ****************************************************************************
  Warning: electronic minimisation did not converge when finding ground state.
  ****************************************************************************
  Writing checkpoint file...

Writing model to 3D_Atomistic.check
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
Error check_elec_ground_state : electronic_minimisation of initial cell failed.
Current trace stack:
check_elec_ground_state
castep
MPI Application rank 0 exited before MPI_Finalize() with status 1
无法收敛怎么调参数?
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yaodu

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★
bingmou(金币+1): 感谢交流! 2011-04-20 22:19:01
fagege2010(金币+1): 2011-04-21 09:58:09
scf次数太少,我的办法是增加一下继续算。更高级的方法可以调节截止能、k点之类的参数,前几天有人讨论过的
2楼2011-04-20 22:07:38
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fagege2010

铁虫 (小有名气)

谢谢是不是把SCF的值变小,收敛次数就会增多
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3楼2011-04-21 09:58:48
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yaodu

银虫 (小有名气)

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sunyang1988(金币+1): 谢谢交流 2011-04-23 12:20:13
引用回帖:
Originally posted by fagege2010 at 2011-04-21 09:58:48:
谢谢是不是把SCF的值变小,收敛次数就会增多

我调节的是scf里面的max scf circles,也就是迭代的次数
4楼2011-04-22 22:49:15
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三尺之外

金虫 (小有名气)

我也出现了同样的问题,请教一下楼主,你的问题是怎么解决的,谢谢...
5楼2011-07-03 16:32:15
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