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茶味果凍新蟲 (小有名氣)
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[求助]
pwscf做半導(dǎo)體晶胞結(jié)構(gòu)優(yōu)化
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我建立的是半導(dǎo)體超晶胞模型,表面有一個團(tuán)簇模型吸附,想先做結(jié)構(gòu)優(yōu)化再進(jìn)行其他計(jì)算,in文件如下: &CONTROL calculation= "vc-relax", restart_mode='from_scratch' prefix= "cds", pseudo_dir= "/vol6/home/zhang00/pseudo1", outdir= "./", tprnfor =.true, nstep =50, etot_conv_thr =1.0E-6, forc_conv_thr =1.0D-5, dt =50, / &SYSTEM ibrav=0,celldm(1)=7.552000,nat=52,ntyp=4, ecutwfc=40,ecutrho=400, occupations ='smearing', smearing ='mp', degauss =0.025, / &ELECTRONS conv_thr= 1.D-6, mixing_beta= 0.7D0, / &IONS / &CELL cell_dynamics ='bfgs' / ATOMIC_SPECIES O 16.00 O.pbe-n-rrkjus_psl.0.1.UPF S 32.00 S.pbe-n-rrkjus_psl.0.1.UPF Ti 48.00 Ti.pbe-sp-van_ak.UPF Cd 112.40 Cd.pbe-n-van.UPF ATOMIC_POSITIONS crystal O 0.000000 0.000000 0.000000 O 0.250000 0.250000 0.264805 。。。。。這里省略其它的 K_POINTS automatic 3 3 2 0 0 0 CELL_PARAMETERS 7.5520000 0.0000000 0.0000000 0.0000000 7.5520000 0.0000000 0.0000000 0.0000000 17.9113240 之后提交服務(wù)器任務(wù),計(jì)算輸出結(jié)果如下: Initial potential from superposition of free atoms Check: negative starting charge= -0.185650 starting charge 403.99853, renormalised to 420.00000 negative rho (up, down): 0.193E+00 0.000E+00 yhrun: error: cn2411: task 0: Killed yhrun: First task exited 60s ago yhrun: tasks 1-5: running yhrun: task 0: exited abnormally yhrun: Terminating job step 747818.0 slurmd[cn2411]: *** STEP 747818.0 KILLED AT 2014-11-04T17:03:06 WITH SIGNAL 9 *** yhrun: Job step aborted: Waiting up to 2 seconds for job step to finish. slurmd[cn2411]: *** STEP 747818.0 KILLED AT 2014-11-04T17:03:06 WITH SIGNAL 9 *** 前面讀取信息都沒有問題啊,到這里開始進(jìn)行計(jì)算,任務(wù)直接就killed的,求高人幫看看是什么問題啊,贗勢文獻(xiàn)選擇?k-point設(shè)置?還是截?cái)嗄埽?還是其它值設(shè)定問題? 還有occupations這一項(xiàng),我的是半導(dǎo)體,這個值該選擇什么呢?smearing不是針對金屬么?tetrahedra這個只說適合計(jì)算DOS?做結(jié)構(gòu)優(yōu)化計(jì)算,對于原子間力,離子力,壓力這些都必須要進(jìn)行計(jì)算么?收斂值的選擇該怎么確定呢? |
找到一些相關(guān)的精華帖子,希望有用哦~
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