student0618 发表于 2025-11-16 01:57 不好意思,我下次提问的时候会更清晰。 这是我用的指令和MD.mdp的内容,麻烦老师帮我看看有什么问题,非常感谢! gmx grompp -f MD.mdp -c NPT.gro -t NPT.cpt -p topol.top -n index.ndx -maxwarn 2 -o MD.tpr MD.mdp: title = Protein-ligand complex MD simulation ; Run parameters integrator = md ; leap-frog integrator nsteps = 50000000 ; 2 * 50000000 = 100000 ps (100 ns) dt = 0.002 ; 2 fs ; Output control nstenergy = 5000 ; save energies every 10.0 ps nstlog = 5000 ; update log file every 10.0 ps nstxout-compressed = 5000 ; save coordinates every 10.0 ps ; Bond parameters continuation = yes ; continuing from NPT constraint_algorithm = lincs ; holonomic constraints constraints = h-bonds ; bonds to H are constrained lincs_iter = 1 ; accuracy of LINCS lincs_order = 4 ; also related to accuracy ; Neighbor searching and vdW cutoff-scheme = Verlet ns_type = grid ; search neighboring grid cells nstlist = 20 ; largely irrelevant with Verlet rlist = 1.2 vdwtype = cutoff vdw-modifier = force-switch rvdw-switch = 1.0 rvdw = 1.2 ; short-range van der Waals cutoff (in nm) ; Electrostatics coulombtype = PME ; Particle Mesh Ewald for long-range electrostatics rcoulomb = 1.2 pme_order = 4 ; cubic interpolation fourierspacing = 0.16 ; grid spacing for FFT ; Temperature coupling tcoupl = V-rescale ; modified Berendsen thermostat tc-grps = Protein_LIG Water_and_ions ; two coupling groups - more accurate tau_t = 0.1 0.1 ; time constant, in ps ref_t = 300 300 ; reference temperature, one for each group, in K ; Pressure coupling pcoupl = Parrinello-Rahman ; pressure coupling is on for NPT pcoupltype = isotropic ; uniform scaling of box vectors tau_p = 2.0 ; time constant, in ps ref_p = 1.0 ; reference pressure, in bar compressibility = 4.5e-5 ; isothermal compressibility of water, bar^-1 ; Periodic boundary conditions pbc = xyz ; 3-D PBC ; Dispersion correction is not used for proteins with the C36 additive FF DispCorr = no ; Velocity generation gen_vel = no ; continuing from NPT equilibration |
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1. 报错也放正文才容易阅读 2. 用什么指令grompp等完全没提,无法猜测。 |
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