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[求助]
求助大神, VASP 使用杂化泛函结构优化一直报错已有5人参与
小弟最近使用杂化泛函进行结构优化,原因是我算的是含f电子稀土化合物, vasp 给的赝势用GGA+U 收敛极其困难,用杂化泛函好些,已经有发表在nature 子篇的论文,做过类似的体系,用的杂化泛函优化, 求助各位大神,看看是小弟的输入文件有问题,还是天河超算中心的VASP 编译问题,感谢大神
小弟的INCAR
Name of system
SYSTEM = a
Start parameter
ISTART = 0
INIWAV = 1
ICHARG = 2
Write flags
NWRITE = 2
LWAVE = T
LCHARG = T
Parallelization
NPAR = 72
LPLANE = T
LSCALU = F
LSCALAPACK = F
Electronic Relaxation 1
ENCUT = 500.00 eV
EDIFF = 1.0E-05 eV
PREC = High
NELM = 200
NELMIN = 2
Electronic Relaxation 2
ALGO = Damped
TIME = 0.4
LREAL = Auto
Ionic Relaxation
NSW = 150
IBRION = 2
ISIF = 3
EDIFFG = -0.05
POTIM = 0.3
ISYM = 3
IWAVPR = 1
LCORR = T
DOS related values
ISMEAR = 0
SIGMA = 0.025
NEDOS = 3000
# NBANDS = 3958
Magnetic parameter
LORBIT = 11
Exchange-correlation functional
GGA = PS
ISPIN = 2
MAGMOM = 4*8 4*4 12*0
HSE06 parameter
LHFCALC = T
HFSCREEN = 0.2
PRECFOCK = Fast
# NKRED = 2
还有一个问体就是我想用HSE 考虑稀土元素的f 电子, 那么我选择赝势的时候是否可以用PBE 里面不含f 电子的赝势, 不知道杂化泛函会不会自己考虑f 电子
前提是我用GGA+U 算不含f电子的赝势,很快收敛, 用含f电子的赝势极难收敛
报错一
ROT: 1 0.159495398721E+04 0.17831E+04BRMIX: very serious problems
the old and the new charge density differ
old charge density: 160.00000 new***********
0.603E+06
ERROR FEXCF: supplied exchange-correlation table
is too small, maximal index : 912695
这个报错有人说应该减小POTIM。 有成功的经验吗
报错2
ROT: 1 -0.155058592914E+03 -0.30390E+02 0.284E+01
ROT: 2 -0.141575035880E+03 0.13484E+02 0.160E+01
ROT: 3 -0.139046123851E+03 0.25289E+01 0.114E+01
ROT: 4 -0.139495088906E+03 -0.44897E+00 0.453E+00
ROT: 5 -0.139199449050E+03 0.29564E+00 0.133E+00
gam= 0.382 g(H,U,f)= 0.305E+03 0.218E+02 0.320E+00 ort(H,U,f) =-0.188E+03-0.426E+02-0.465E+00
DMP: 7 -0.112154452901E+03 -0.50536E+02 -0.95574E+02 2160 0.327E+03-0.231E+03
N E dE rms(c)
ROT: 1 -0.159501125680E+03 -0.20006E+02 0.795E+01
ROT: 2 -0.157770040931E+03 0.17311E+01 0.495E+01
ROT: 3 -0.155549182836E+03 0.22209E+01 0.173E+01
ROT: 4 NaN NaN NaN
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
vasp 00000000005A769A Unknown Unknown Unknown
vasp 000000000070A100 Unknown Unknown Unknown
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U31~GV(QLRG}V{D75RS6[]8.png |
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