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632280562銀蟲 (小有名氣)
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[求助]
CASTEP在計算是出現(xiàn)問題啦,求大俠幫忙啊。。。
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我的CASTEP在計算前面幾個材料的時候都挺好的,可是再計算一個新的就出現(xiàn)問題啦,具體表現(xiàn)在不能進行幾何優(yōu)化,我變換了一下截斷能以及k-point 都不行,軟件提示為: Warning: There are no empty bands for at least one kpoint and spin; this may slow the convergence and/or lead to an inaccurate groundstate. If this warning persists, you should consider increasing nextra_bands and/or reducing smearing_width in the param file. Recommend using nextra_bands of 6 to 13. 還請那位大俠幫忙解決一下啊,謝謝啦。! |
第一原理資料匯編 |
木蟲 (著名寫手)
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設(shè)定計算條件時,點一下files,然后在彈出窗口里點擊save files,這樣會把輸入條件以文件的形式存下來,點開那個****.param文件,然后按提示把 nextra_bands 值從 6改為 13。 increasing nextra_bands reducing smearing_width 提示說得很清楚要改這兩值,前一個是提高,比較容易,后面一個值一般已經(jīng)比較小了,再減小不知道行不行,你也可以試一下。 |

鐵桿木蟲 (正式寫手)
銀蟲 (小有名氣)
版主 (著名寫手)

木蟲 (小有名氣)
銀蟲 (小有名氣)
銀蟲 (小有名氣)
銀蟲 (小有名氣)
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我在增大空帶值之后又出現(xiàn)了新的問題,求解。! ******************************************************** Warning: electronic minimisation did not converge during finite basis set correction. ******************************************************** Checkpoint file cannot be written. Error calculate_finite_basis : Convergence failed when doing finite basis set correction. Current trace stack: calculate_finite_basis_corr check_elec_ground_state castep Error calculate_finite_basis : Convergence failed when doing finite basis set correction. Current trace stack: calculate_finite_basis_corr check_elec_ground_state castep Error calculate_finite_basis : Convergence failed when doing finite basis set correction. Current trace stack: calculate_finite_basis_corr check_elec_ground_state castep Error calculate_finite_basis : Convergence failed when doing finite basis set correction. Current trace stack: calculate_finite_basis_corr check_elec_ground_state castep MPI Application rank 0 exited before MPI_Finalize() with status 1 |
木蟲 (小有名氣)
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