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[求助]
對(duì)正交晶格摻雜后計(jì)算不收斂
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工作站CPU36核(計(jì)算的時(shí)候100%利用),內(nèi)存70G(全是C盤,計(jì)算的時(shí)候70%利用),本征晶格是α-CoSn3(8個(gè)Co,16個(gè)Sn),沒有擴(kuò)胞,直接make p1后用Cu取代Co,相同位置的Co都被取代了,然后計(jì)算energy報(bào)錯(cuò)如下,嘗試修改smearing到0.5后計(jì)算energy成功,默認(rèn)值是0.1,因?yàn)椴恢纒mearing的設(shè)置原則是什么,本著靠近默認(rèn)值的想法,依次修改成0.3、0.2計(jì)算energy都成功了,然后繼續(xù)用0.2去優(yōu)化晶胞,算了12個(gè)小時(shí)還沒算完(現(xiàn)在還在算),我想問問smearing這樣修改成0.2做計(jì)算這樣有問題沒有,會(huì)不會(huì)造成大的誤差,接下來我還要算elastic constants,是否可行。請(qǐng)各位懂的老師幫幫我,非常感謝! ============================================================================================= *Warning* max. SCF cycles performed but system has not reached the groundstate. Current total energy, E = -11071.87085477 eV Current free energy (E-TS) = -11071.99402823 eV (energies not corrected for finite basis set) NB est. 0K energy (E-0.5TS) = -11071.93244150 eV ******************************************************** 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 application called MPI_Abort(MPI_COMM_WORLD, 1) - process 31 application called MPI_Abort(MPI_COMM_WORLD, 1) - process 28 application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0 ============================================================================================= |
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我試著增加了empty到25%,確實(shí)能做出來,不過花費(fèi)的時(shí)間有點(diǎn)長(zhǎng),我再試試其他的,先謝謝了~ 發(fā)自小木蟲IOS客戶端 |
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