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请计算过的老师、同学指导一下:
最近我重复cpmd metadynamic tutorial day4中的SI54,META_CELL里面的inp2文件(如下输入文件1)不能完成计算,我的计算步骤为:
1. 先将下面输入文件里面&CPMD部分修改,执行波函数优化(MAXSTEP 200,去掉METASTEPNUM部分);
2. 然后进行分子动力学模拟(&CPMD 部分设置为 MOLECULAR DYNAMICS RESTART WAVEFUNCTIONS COORDINATES CELL LATEST MAXSTEP=2000,去掉METASTEPNUM部分);
3. 上一步分子动力学跑完后,将&CPMD 部分重新设置(MOLECULAR DYNAMICS RESTART WAVEFUNCTIONS COORDINATES ACCUMULATORS VELOCITIES CELL LATEST QUENCH BO PARRINELLO-RAHMAN, MAXSTEP 60000), 并加入METASTEPNUM部分,结果发现分子动力学跑完一部分后停止了,说“LATEST文件读入错误”。
我想问一下,我这个计算步骤是不是有问题?烦请指导一下。
我发现第三步,如果不加入METASTEPNUM部分,分子动力学一直会计算,可是加入了METASTEPNUM部分后,只计算一会就报错。是不是第2步的MAXSTEP和第三步的MAXSTEP需要相同?都要设置为60000?
#输入文件1 ####
&CPMD
MOLECULAR DYNAMICS
RESTART WAVEFUNCTIONS COORDINATES ACCUMULATORS VELOCITIES CELL LATEST
QUENCH BO
PARRINELLO-RAHMAN
TEMPERATURE IONS
300.
TEMPCONTROL IONS
300. 30.
MAXSTEP
60000
TRAJECTORY XYZ SAMPLE
50
STRESS TENSOR
10
CMASS
250000
EMASS
800
SPLINE RANGE
3.0
MAXCPUTIME
85000
&END
&SYSTEM
CELL VECTORS
-15.3878 0.00 15.3878 0.00 15.3878 15.3878 -15.3878 15.3878 0.00
CUTOFF
20.
PRESSURE
95.
&END
&DFT
FUNCTIONAL LDA
&END
&ATOMS
*SI_MT_LDA KLEINMAN-BYLANDER
LMAX=P
54
0.00000 0.00000 0.00000
-5.12927 5.12927 0.00000
-10.25855 10.25855 0.00000
0.00000 5.12927 5.12927
-5.12927 10.25855 5.12927
-10.25855 15.38782 5.12927
0.00000 10.25855 10.25855
-5.12927 15.38782 10.25855
-10.25855 20.51710 10.25855
-5.12927 0.00000 5.12927
-10.25855 5.12927 5.12927
-15.38782 10.25855 5.12927
-5.12927 5.12927 10.25855
-10.25855 10.25855 10.25855
-15.38782 15.38782 10.25855
-5.12927 10.25855 15.38782
-10.25855 15.38782 15.38782
-15.38782 20.51710 15.38782
-10.25855 0.00000 10.25855
-15.38782 5.12927 10.25855
-20.51710 10.25855 10.25855
-10.25855 5.12927 15.38782
-15.38782 10.25855 15.38782
-20.51710 15.38782 15.38782
-10.25855 10.25855 20.51710
-15.38782 15.38782 20.51710
-20.51710 20.51710 20.51710
2.56464 2.56464 2.56464
-2.56464 7.69391 2.56464
-7.69391 12.82319 2.56464
2.56464 7.69391 7.69391
-2.56464 12.82319 7.69391
-7.69391 17.95246 7.69391
2.56464 12.82319 12.82319
-2.56464 17.95246 12.82319
-7.69391 23.08174 12.82319
-2.56464 2.56464 7.69391
-7.69391 7.69391 7.69391
-12.82319 12.82319 7.69391
-2.56464 7.69391 12.82319
-7.69391 12.82319 12.82319
-12.82319 17.95246 12.82319
-2.56464 12.82319 17.95246
-7.69391 17.95246 17.95246
-12.82319 23.08174 17.95246
-7.69391 2.56464 12.82319
-12.82319 7.69391 12.82319
-17.95246 12.82319 12.82319
-7.69391 7.69391 17.95246
-12.82319 12.82319 17.95246
-17.95246 17.95246 17.95246
-7.69391 12.82319 23.08174
-12.82319 17.95246 23.08174
-17.95246 23.08174 23.08174
META DYNAMICS COLLECTIVE VARIABLE
DEFINE VARIABLES
3
CELLSIDE 1 SCF 1. KCV 1.0 MCV 100.0
CELLSIDE 2 SCF 1. KCV 1.0 MCV 100.0
CELLSIDE 3 SCF 1. KCV 1.0 MCV 100.0
END DEFINE
METASTEPNUM
800
META_RESTART
1657
HILLS SHIFT RCUT 2.0 1.0 = 0.3 0.005
TUNING HHEIGHT = 0.0010 0.09
LAGRANGE TEMPERATURE
500.00
LAGRANGE TEMPCONT
500.00 100.00
MAXSTEPNUM INTERMETA
200
MINSTEPNUM INTERMETA
70
METASTORE
20 1 1000
MOVEMENT CHECK
0.01
MAXKINEN
0.07
RESTRAIN VOLUME
0.0 1.1 2.0
END METADYNAMICSMETA
&END |
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