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dzhijie

金虫 (正式写手)

学生

[交流] 【求助】castep磁性优化出错 已有7人参与

我考虑自旋,对体系优化这出现以下错误,请各位大虾指点下,谢谢
*Warning* max. SCF cycles performed but system has not reached the groundstate.
  
Current total energy, E     =  -16579.67677435     eV
Current free energy (E-TS)  =  -16579.90175576     eV
(energies not corrected for finite basis set)

NB est. 0K energy (E-0.5TS)      =  -16579.78926505     eV

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

Writing model to 0413.check
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
Error in geom_get_forces - electronic_minimisation of current_cell failed
Current trace stack:
geom_get_forces
geom_BFGS
geometry_optimise
castep
MPI Application rank 5 exited before MPI_Finalize() with status 1
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franch

版主 (著名写手)

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dzhijie(金币+1):我用的是5.0 2010-04-21 16:03
aylayl08(金币+1):超软可以降低Ecut 2010-04-21 18:54
引用回帖:
Originally posted by aylayl08 at 2010-04-21 15:06:33:
550 这也不低了

你是用 upp的吗?  那就可以再低些,,   



这问题旧版ms出现的多些,,

新版的ms在有些结构的收敛上已经改善了不少的。。
遇弱则弱
9楼2010-04-21 15:26:17
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hzfish

金虫 (正式写手)

★
gavinliu7390(金币+1):谢谢解答! 2010-04-14 11:13
dzhijie(金币+2):我的SCF为200,我已经设成300了,还在运行。不知道行不行 2010-04-14 17:26
最大SCF循环已做完,体系还没有收敛。
先增加SCF循环试试吧。
2楼2010-04-14 09:57:16
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woshilaoer8381

至尊木虫 (知名作家)

dzhijie(金币+2):单胞13个原子,3*3*2的KPOINTS 2010-04-15 09:11
你的体系有多少原子,如果少的话,估计不需要那么大!
3楼2010-04-14 21:59:22
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woshilaoer8381

至尊木虫 (知名作家)

dzhijie(金币+2):谢谢!跟我的想法一致,不过还在运行中!昨天到现在还没完,但愿这个办法有效! 2010-04-15 10:23
加大能量并降低精度试试看。
4楼2010-04-15 09:36:25
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