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ddwy木蟲 (小有名氣)
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[求助]
分子動(dòng)力學(xué)模擬出錯(cuò) 已有1人參與
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大家好: 我用DL_POLY_4.03做分子動(dòng)力學(xué)模擬,CONTROL輸入文件是: temperature 298.15 # pressure 0.001 ensemble nvt hoover 0.5 integrat velocity restart steps 3000000 equilibration 1000000 mult 1 scale 5 stats 20 rdf 10 print rdf traj 1000001 100 0 densvar 20 timestep 0.002 cutoff 12.0 ewald precision 1.0E-6 minimise energy 50 5.0E-03 shake 1.0E-6 mxshak 10000 quaternion tolerance 1.0E-05 job time 99999999999999.0 close time 200000.0 finish 但是計(jì)算到第步的時(shí)候出現(xiàn)錯(cuò)誤,OUTPUT文件為: ---------------------------------------------------------------------------------------------------------------------------------- 174600 -2.8822E+04 2.9815E+02 -3.1606E+04 3.9295E+03 -3.5876E+04 1.7169E+02 1.0398E+02 6.5269E+01 0.0000E+00 349.20000 -2.9405E+04 0.0000E+00 9.0503E+03 -9.0711E+04 3.5875E+04 8.3469E+01 0.0000E+00 6.3803E+04 0.0000E+00 119751.3 4.9579E+04 0.0000E+00 0.0000E+00 0.0000E+00 9.0000E+01 9.0000E+01 9.0000E+01 0.0000E+00 -1.2860E+00 rolling -2.6814E+04 2.9487E+02 -2.9563E+04 4.1468E+03 -3.4341E+04 3.6908E+02 1.8861E+02 7.4187E+01 0.0000E+00 averages -2.6525E+04 0.0000E+00 6.3658E+03 -9.3434E+04 3.4340E+04 1.4041E+03 0.0000E+00 6.4056E+04 0.0000E+00 4.9579E+04 0.0000E+00 0.0000E+00 0.0000E+00 9.0000E+01 9.0000E+01 9.0000E+01 0.0000E+00 -8.0166E-02 ---------------------------------------------------------------------------------------------------------------------------------- *** warning - global constraint number 6 , with particle numbers: 2885 & 2886 , converges to a length of 7.94 Angstroms with a factor 3.1039E+01 ,contributes towards next error !!! *** *** warning - global constraint number 7 , with particle numbers: 2885 & 2887 , converges to a length of 12.88 Angstroms with a factor 8.2412E+01 ,contributes towards next error !!! *** *** warning - global constraint number 8 , with particle numbers: 2886 & 2887 , converges to a length of 18.15 Angstroms with a factor 1.0006E+02 ,contributes towards next error !!! *** DL_POLY_4 terminated due to error 105 error - shake algorithm (constraints_shake) failed to converge "OUTPUT" 64939L, 6075639C 請(qǐng)各位指點(diǎn)一下,謝謝 |

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木蟲 (小有名氣)

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