top文件中将乙烯间的epsilon为0这行注释,模拟可正常运行,若在eql.mdp文件末尾加上energygrps=C2H4
energygrp-excl=C2H4 C2H4会有如下警告:
WARNING 1 [file mdp/eql.mdp]:
Can not exclude the lattice Coulomb energy between energy groups
WARNING 2 [file mdp/eql.mdp]:
The sum of the two largest charge group radii (3.368419)is larger than
rlist(1.400000)
接着 删除energygrp-excl = C2H4 C2H4后报错
Fatal error:
There is no domain decomposition for 16 ranks that is compatible with the given box and a minimum cell size of 0.87525nm
Change the number ofranks or mdrun option -rdd or -dds
Look in the log file for details on the domain decomposition
核数减小为4后报错
Program gmx mdrun,VERSION 5.1.5
Source code file: /home/public/all/gro/gromacs-5.1.5/src/gromacs/ewald/pme-redistribute.cpp, line: 276
Fatal error:
1 particles communicated to PME rank 1 are more than 2/3 times the cut-off out of the domain decomposition cell of
stheir charge group in dimension y.
This usually means that your system is not well equilibrated.
请问各位大佬,我的脚本里是哪些参数不合理吗,应该怎样修改呢? 作者Author: sobereva 时间: 2025-6-22 07:18
这种事99.9%的概率是动力学模拟崩溃,其中又有99.9%的概率是拓扑文件不当所致。跟内存不够没关系,本来gromacs就不怎么耗内存
参考http://sobereva.com/soft/Sobtop#FAQ8仔细检查拓扑文件作者Author: 笨笨鸟 时间: 2025-6-22 09:17