计算化学公社
标题:
开启机器学习分子动力学计算,却仍一直在进行从头计算
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作者Author:
GRZ
时间:
2024-3-5 22:25
标题:
开启机器学习分子动力学计算,却仍一直在进行从头计算
采用vasp 6.4.2进行MLMD计算,温度设置为400K时进行计算比较顺利,在一定步数的从头计算之后会采用机器学习力场进行计算。
但是将温度设置为300K时,则会一直进行从头计算,直到1500步达到ML_MB的上限报错,但是在400K时,不到100步就开始使用机器学习力场进行预测。
各位大佬,小弟想请教一下为什么会出现更改温度后不进行机器学习力场预测这种问题?
以下是INCAR文件,300K和400K时仅对温度进行了修改。
ALGO = Fast # Fast
EDIFF = 0.00001
ENCUT = 400
ISMEAR = 1 #0
SIGMA = 0.1 #0.05
ISPIN = 2
MAGMOM = 80*5.0 12*1.0
ISTART = 1
LREAL = Auto
LWAVE = False
NELM = 300
NWRITE=1
PREC = Normal
NPAR = 4
#FOR MD
NSW=60000
IBRION=0 #FOR MD
POTIM=0.5
ISIF = 2
MDALGO = 4
NHC_NCHAINS = 3
NBLOCK=1
KBLOCK=10
NELMIN=6
LCHARG =.F.
TEBEG=300 # TEmperature at BEGining
TEEND=300 #TEmperature at the END
SMASS=1
RANDOM_SEED = 12345678 0 0
#Machine learning paramters
ML_LMLFF = .TRUE.
ML_ISTART = 0
ML_LBASIS_DISCARD=.TRUE
复制代码
检查了一下300K时的ML_ABN文件,我已经跑了1000多步的从头计算,然而ML_ABN文件中却只有6个configurations,不知道这是什么原因。
此外对比了一下300K和400K时的ML_LOGFILE文件,在300K的计算在第二步时求解REGR用了50步,第8列的误差反而越来越大,不知道这个地方的不收敛该怎么解决。
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STATUS 0 threshold 2 T F 0 0
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STATUS 1 critical 4 T F 0 1
LCONF 1 Fe 0 80 H 0 12
SPRSC 1 1 1 Fe 80 25 H 12 12
REGR 1 1 1 2.03427090E-01 5.58399039E-01 1.00179913E-09 7.32063736E+01
REGR 1 1 2 6.54871393E-02 5.73960425E-01 3.19867932E-09 7.55316317E+01
REGR 1 1 3 1.39152913E-02 5.89413461E-01 1.54586841E-08 7.78722005E+01
REGR 1 1 4 1.40342867E-03 6.01123925E-01 1.56321403E-07 7.97374649E+01
REGR 1 1 5 1.62097401E-04 6.06333506E-01 1.36514974E-06 8.07505051E+01
REGR 1 1 6 6.10359679E-05 6.11595603E-01 3.65698596E-06 8.18132444E+01
REGR 1 1 7 4.05461288E-05 6.17966013E-01 5.56237121E-06 8.28869789E+01
REGR 1 1 8 3.35324841E-05 6.22468325E-01 6.77479725E-06 8.35985039E+01
REGR 1 1 9 3.06198798E-05 6.25024261E-01 7.44968943E-06 8.39952588E+01
REGR 1 1 10 2.93085577E-05 6.26357739E-01 7.79960796E-06 8.42008973E+01
REGRF 1 1 11 2.86959634E-05 6.27026457E-01 7.97461693E-06 8.43037312E+01 1.66079299E+15 2.74002942E+09
NDESC 1 24 Fe 452 H 452
NDESC_SIC 1 Fe 226 H 226
STDAB 1 0.00000000E+00 4.49911633E-02 0.00000000E+00
ERR 1 1.33160442E-01 1.78565807E-02 1.50997419E+01
CFE 1 0.00000000E+00 0.00000000E+00 0.00000000E+00
LASTE 1 1.33160442E-01 1.78565807E-02 1.50997419E+01
BEE 1 1.00000000E-06 3.46410162E-02 2.00000000E-02 2.00000000E-03 0.00000000E+00 0.00000000E+00
BEEF 1 9.81859850E-04 1.20314674E-02 3.87184321E-03 2.00000000E-03 1.01482645E+00 6.42993156E-01
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STATUS 2 critical 4 T T 0 1
LCONF 2 Fe 25 89 H 12 24
SPRSC 2 2 2 Fe 89 30 H 24 24
REGR 2 1 1 2.19264203E-01 6.91866816E-01 2.00000000E-15 1.84764826E+02
REGR 2 1 2 4.52633698E-01 1.42824151E+00 2.00000000E-15 3.84527513E+02
REGR 2 1 3 2.25581875E-01 1.42360323E+00 4.00000000E-15 3.82699101E+02
REGR 2 1 4 3.87340298E-01 2.44442909E+00 4.00000000E-15 6.59668553E+02
REGR 2 1 5 1.93885338E-01 2.44714513E+00 8.00000000E-15 6.59026436E+02
REGR 2 1 6 3.32699860E-01 4.19920789E+00 8.00000000E-15 1.13557778E+03
REGR 2 1 7 1.66767586E-01 4.20975088E+00 1.60000000E-14 1.13576878E+03
REGR 2 1 8 2.61683214E-01 6.60572695E+00 1.60000000E-14 1.79025671E+03
REGR 2 1 9 1.31196056E-01 6.62362181E+00 3.20000000E-14 1.79094402E+03
REGR 2 1 10 1.83874186E-01 9.28315310E+00 3.20000000E-14 2.52142367E+03
REGR 2 1 11 9.21090040E-02 9.30051143E+00 6.40000000E-14 2.52173861E+03
REGR 2 1 12 1.19958298E-01 1.21125348E+01 6.40000000E-14 3.29801076E+03
REGR 2 1 13 6.01651977E-02 1.21501066E+01 1.28000000E-13 3.29797506E+03
REGR 2 1 14 7.66761443E-02 1.54844223E+01 1.28000000E-13 4.22365545E+03
REGR 2 1 15 3.84115826E-02 1.55141125E+01 2.56000000E-13 4.22369654E+03
REGR 2 1 16 4.97467327E-02 2.00922836E+01 2.56000000E-13 5.49335100E+03
REGR 2 1 17 2.49178403E-02 2.01282089E+01 5.12000000E-13 5.49341864E+03
REGR 2 1 18 3.30876444E-02 2.67276380E+01 5.12000000E-13 7.32211244E+03
REGR 2 1 19 1.65655977E-02 2.67628178E+01 1.02400000E-12 7.32205198E+03
REGR 2 1 20 2.19214242E-02 3.54155095E+01 1.02400000E-12 9.72041545E+03
REGR 2 1 21 1.09606810E-02 3.54154091E+01 2.04800000E-12 9.72038788E+03
REGR 2 1 22 1.39033002E-02 4.49234005E+01 2.04800000E-12 1.23554704E+04
REGR 2 1 23 6.96826942E-03 4.50307989E+01 4.09600000E-12 1.23554620E+04
REGR 2 1 24 8.44227457E-03 5.45562099E+01 4.09600000E-12 1.50168415E+04
REGR 2 1 25 4.23019788E-03 5.46733138E+01 8.19200000E-12 1.50168313E+04
REGR 2 1 26 5.10653651E-03 6.59995776E+01 8.19200000E-12 1.81935431E+04
REGR 2 1 27 2.55829413E-03 6.61294918E+01 1.63840000E-11 1.81935351E+04
REGR 2 1 28 3.25320448E-03 8.40922692E+01 1.63840000E-11 2.32222091E+04
REGR 2 1 29 1.62929344E-03 8.42313992E+01 3.27680000E-11 2.32222127E+04
REGR 2 1 30 2.28063791E-03 1.17904680E+02 3.27680000E-11 3.26237345E+04
REGR 2 1 31 1.14251044E-03 1.18131271E+02 6.55360000E-11 3.26237300E+04
REGR 2 1 32 1.78520365E-03 1.84583326E+02 6.55360000E-11 5.11659008E+04
REGR 2 1 33 8.93791241E-04 1.84829288E+02 1.31072000E-10 5.11659017E+04
REGR 2 1 34 1.49237737E-03 3.08612385E+02 1.31072000E-10 8.57242616E+04
REGR 2 1 35 7.47378398E-04 3.09104433E+02 2.62144000E-10 8.57242658E+04
REGR 2 1 36 1.21531657E-03 5.02636602E+02 2.62144000E-10 1.39868513E+05
REGR 2 1 37 6.09666730E-04 5.04297929E+02 5.24288000E-10 1.39868515E+05
REGR 2 1 38 9.02955017E-04 7.46897153E+02 5.24288000E-10 2.08062133E+05
REGR 2 1 39 4.51477509E-04 7.46897154E+02 1.04857600E-09 2.08062133E+05
REGR 2 1 40 6.14337274E-04 1.01632252E+03 1.04857600E-09 2.83827296E+05
REGR 2 1 41 3.07723880E-04 1.01815965E+03 2.09715200E-09 2.83827296E+05
REGR 2 1 42 4.03364217E-04 1.33460285E+03 2.09715200E-09 3.73091253E+05
REGR 2 1 43 2.02063289E-04 1.33712526E+03 4.19430400E-09 3.73091253E+05
REGR 2 1 44 2.64106839E-04 1.74768969E+03 4.19430400E-09 4.89073304E+05
REGR 2 1 45 1.32053420E-04 1.74768969E+03 8.38860800E-09 4.89073305E+05
REGR 2 1 46 1.72394156E-04 2.28158793E+03 8.38860800E-09 6.39555806E+05
REGR 2 1 47 8.61970781E-05 2.28158793E+03 1.67772160E-08 6.39555806E+05
REGR 2 1 48 1.13209669E-04 2.99659594E+03 1.67772160E-08 8.40990129E+05
REGR 2 1 49 5.66048345E-05 2.99659594E+03 3.35544320E-08 8.40990129E+05
REGRF 2 1 50 7.62449763E-05 4.03632285E+03 3.35544320E-08 1.13401357E+06 -1.34457656E+16 1.57770125E+15
NDESC 2 24 Fe 452 H 452
NDESC_SIC 2 Fe 226 H 226
STDAB 2 4.45091206E-06 5.75450163E-02 4.03952569E-02
ERR 2 1.33160442E-01 1.78565807E-02 1.50997419E+01
CFE 2 5.46201079E-02 2.28753996E-02 4.01021682E-01
LASTE 2 1.33160442E-01 1.78565807E-02 1.50997419E+01
BEE 2 9.81858683E-04 1.19753653E-02 3.87251056E-03 2.00000000E-03 1.01472259E+00 6.43172560E-01
BEEF 2 1.00000000E-06 3.46410162E-02 2.00000000E-02 2.00000000E-03 0.00000000E+00 0.00000000E+00
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STATUS 3 critical 4 T F 0 1
LCONF 3 Fe 30 110 H 24 36
SPRSC 3 3 3 Fe 110 35 H 36 34
REGR 3 1 1 5.22685770E-04 -7.54835046E-04 -1.21455889E-13 1.04923914E+02
REGR 3 1 2 8.42665437E-08 3.36200129E-02 3.35544320E-08 3.25987270E+03
REGR 3 1 3 8.84127246E-05 7.05484480E+01 6.71088640E-08 2.95607793E+04
REGR 3 1 4 4.91276053E-05 7.84022058E+01 1.34217728E-07 3.29252129E+04
REGR 3 1 5 5.35272916E-05 8.54236167E+01 1.34217728E-07 3.59228173E+04
REGRF 3 1 6 5.35272916E-05 8.54236167E+01 1.34217728E-07 3.59228173E+04 -2.53531470E+16 1.18902997E+13
NDESC 3 24 Fe 452 H 452
NDESC_SIC 3 Fe 226 H 226
STDAB 3 6.80049051E-05 7.69205421E-02 4.38224826E-02
ERR 3 2.61772686E-04 5.65812477E-01 1.70058187E+00
CFE 3 0.00000000E+00 0.00000000E+00 0.00000000E+00
LASTE 3 2.84116947E-04 5.70810154E-01 1.73283363E+00
BEE 3 1.00000000E-06 3.46410162E-02 2.00000000E-02 2.00000000E-03 0.00000000E+00 0.00000000E+00
BEEF 3 3.95522187E-06 2.29808927E-01 3.38149687E-02 2.00000000E-03 2.43673172E-01 1.71571998E-01
复制代码
在400K时,第二步的误差是逐渐下降的
STATUS 0 threshold 2 T F 0 0
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STATUS 1 critical 4 T F 0 1
LCONF 1 Fe 0 80 H 0 12
SPRSC 1 1 1 Fe 80 25 H 12 12
REGR 1 1 1 2.03427111E-01 5.58398988E-01 1.00179880E-09 7.32063669E+01
REGR 1 1 2 6.54871649E-02 5.73960373E-01 3.19867735E-09 7.55316247E+01
REGR 1 1 3 1.39153029E-02 5.89413409E-01 1.54586677E-08 7.78721935E+01
REGR 1 1 4 1.40343056E-03 6.01123878E-01 1.56321159E-07 7.97374583E+01
REGR 1 1 5 1.62097575E-04 6.06333461E-01 1.36514799E-06 8.07504988E+01
REGR 1 1 6 6.10360115E-05 6.11595558E-01 3.65698258E-06 8.18132381E+01
REGR 1 1 7 4.05461508E-05 6.17965968E-01 5.56236704E-06 8.28869727E+01
REGR 1 1 8 3.35324992E-05 6.22468282E-01 6.77479283E-06 8.35984979E+01
REGR 1 1 9 3.06198917E-05 6.25024219E-01 7.44968503E-06 8.39952530E+01
REGR 1 1 10 2.93085681E-05 6.26357698E-01 7.79960364E-06 8.42008917E+01
REGRF 1 1 11 2.86959729E-05 6.27026417E-01 7.97461269E-06 8.43037257E+01 1.66074114E+15 2.74002979E+09
NDESC 1 24 Fe 452 H 452
NDESC_SIC 1 Fe 226 H 226
STDAB 1 0.00000000E+00 4.49911636E-02 0.00000000E+00
ERR 1 1.33160414E-01 1.78565807E-02 1.50997415E+01
CFE 1 0.00000000E+00 0.00000000E+00 0.00000000E+00
LASTE 1 1.33160414E-01 1.78565807E-02 1.50997415E+01
BEE 1 1.00000000E-06 3.46410162E-02 2.00000000E-02 2.00000000E-03 0.00000000E+00 0.00000000E+00
BEEF 1 9.81859806E-04 1.20314673E-02 3.87184317E-03 2.00000000E-03 1.01482644E+00 6.42993152E-01
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STATUS 2 critical 4 T T 0 1
LCONF 2 Fe 25 89 H 12 24
SPRSC 2 2 2 Fe 89 31 H 24 24
REGR 2 1 1 4.09510137E+00 6.83152741E-01 2.00000000E-15 1.83261423E+02
REGR 2 1 2 1.78824428E+00 2.98318373E-01 2.00000000E-15 7.94947179E+01
REGRF 2 1 3 1.79236326E+00 2.99005511E-01 2.00000000E-15 7.96778236E+01 -1.36179849E+16 8.34109683E+13
NDESC 2 24 Fe 452 H 452
NDESC_SIC 2 Fe 226 H 226
STDAB 2 1.96774589E-05 6.13894063E-02 4.83205647E-02
ERR 2 3.33592945E-06 2.83593686E-02 5.47773247E-02
CFE 2 6.23424347E-02 2.51345630E-02 4.65148645E-01
LASTE 2 3.33290111E-06 2.83506991E-02 5.78562090E-02
BEE 2 9.81858332E-04 1.19683389E-02 3.87305125E-03 2.00000000E-03 1.01470925E+00 6.43202425E-01
BEEF 2 1.00000000E-06 3.08795700E-02 6.41811580E-03 2.00000000E-03 2.73977324E-02 1.84484828E-02
复制代码
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