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标题:
求助在npt时生成不了gro文件
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作者Author:
letty
时间:
2020-4-23 17:25
标题:
求助在npt时生成不了gro文件
在跑npt时遇到以下问题,请
问
如何解决
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以下是我的npt.mdp参数详情
title = NPT equilibration
; Start time and timestep in ps
integrator = md
nsteps = 1000000
dt = 0.001
nstxout = 5000
nstvout = 5000
nstenergy = 5000
nstlog = 5000
continuation = no
constraint_algorithm = Lincs
constraints = none
lincs_iter = 1
lincs_order = 4
cutoff-scheme = Verlet
ns_type = grid
nstlist = 10
rcoulomb = 1.4
rvdw = 1.4
coulombtype = PME
pme_order = 4
fourierspacing = 0.16
; OPTIONS FOR WEAK COUPLING ALGORITHMS
; Temperature coupling
Tcoupl = nose-hoover
nsttcouple = -1
nh-chain-length = 10
; Groups to couple separately
tc-grps = System
; Time constant (ps) and reference temperature (K)
tau_t = 0.2
ref_t = 298.15
; Pressure coupling
Pcoupl = Parrinello-Rahman
Pcoupltype = isotropic
; Time constant (ps), compressibility (1/bar) and reference P (bar)
tau_p = 0.5
compressibility = 4.5e-5
ref_p = 1.
refcoord_scaling = com
pbc = xyz
Dispcorr = Enerpres
gen_vel = no
作者Author:
mol
时间:
2020-4-23 17:57
segment fault感觉一般和模拟参数设置关系不大,lz可以检查下构型是否合理,或者换台机器跑跑
作者Author:
sobereva
时间:
2020-4-23 19:15
mdp不合理、拓扑信息不合理、参数不合理、初始结构差都可能导致,光从你提供的信息上没法判断,只能反复检查。
单从mdp来说,建议用退火方式从0K缓慢升温,免得温度被快速拔上去造成不稳定。另外,如果体系还没平衡,不要用nose-hoover热浴和Parrinello-Rahman压浴。
作者Author:
letty
时间:
2020-4-23 21:15
sobereva 发表于 2020-4-23 19:15
mdp不合理、拓扑信息不合理、参数不合理、初始结构差都可能导致,光从你提供的信息上没法判断,只能反复检 ...
谢谢老师的回复
作者Author:
马天湉
时间:
2023-3-21 16:58
请问问题解决了吗?我也遇到同样的问题了请问该如何解决?
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