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[求助]
求助CCSD(T)問題 已有2人參與
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大家好,我想請求一個問題,我用CCSD(T)計算單點能正常結(jié)束后,能量反而增加,更不準確了,是什么原因呢? 因為計算中凍芯出了問題,所有在關(guān)鍵詞中加入了iop(8/11=1),請我是由于這個關(guān)鍵詞造成的錯誤嗎? |
木蟲 (著名寫手)
木蟲 (著名寫手)
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IOp(8/11) MO coefficient, orbital energy, and number of electrons test. 0 Default, same as 2 except for during BD iterations or BD=Read. 1 Just print a warning message. 2 Kill the job if any MO coefficients are greater than 1000.0 or the smallest difference between occupied and virtual orbital energies is less than 0.001. Also, kill a frozen-core job if there is significant core-valence mixing in the canonical orbitals. 00 Default, same as 10. 10 Suppress such a test (CPHF may still be done for such a case). 20 Kill the job if there is no corr. energy; e.g., if there is only 1 electron or 1 virtual spin-orbital. 根據(jù)iop(8/11=1)的描述,我覺得有一定關(guān)系,可能你的凍芯出現(xiàn)了選項2后面所說的那種情況。 |
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