2 ; File 'mdout.mdp' was generated
5 ; At date: Mon Dec 15 13:52:23 2003
8 ; VARIOUS PREPROCESSING OPTIONS
14 ; RUN CONTROL PARAMETERS
16 ; Start time and timestep in ps
20 ; For exact run continuation or redoing part of a run
22 ; mode for center of mass motion removal
24 ; number of steps for center of mass motion removal
26 ; group(s) for center of mass motion removal
29 ; LANGEVIN DYNAMICS OPTIONS
30 ; Temperature, friction coefficient (amu/ps) and random seed
35 ; ENERGY MINIMIZATION OPTIONS
36 ; Force tolerance and initial step-size
39 ; Max number of iterations in relax_shells
41 ; Step size (1/ps^2) for minimization of flexible constraints
43 ; Frequency of steepest descents steps when doing CG
47 ; OUTPUT CONTROL OPTIONS
48 ; Output frequency for coords (x), velocities (v) and forces (f)
52 ; Checkpointing helps you continue after crashes
54 ; Output frequency for energies to log file and energy file
57 ; Output frequency and precision for xtc file
60 ; This selects the subset of atoms for the xtc file. You can
61 ; select multiple groups. By default all atoms will be written.
63 ; Selection of energy groups
66 ; NEIGHBORSEARCHING PARAMETERS
67 ; nblist update frequency
69 ; ns algorithm (simple or grid)
71 ; Periodic boundary conditions: xyz (default), no (vacuum)
72 ; or full (infinite systems only)
76 domain-decomposition = no
78 ; OPTIONS FOR ELECTROSTATICS AND VDW
79 ; Method for doing electrostatics
83 ; Dielectric constant (DC) for cut-off or DC of reaction field
85 ; Method for doing Van der Waals
90 ; Apply long range dispersion corrections for Energy and Pressure
92 ; Extension of the potential lookup tables beyond the cut-off
94 ; Spacing for the PME/PPPM FFT grid
96 ; FFT grid size, when a value is 0 fourierspacing will be used
100 ; EWALD/PME/PPPM parameters
107 ; GENERALIZED BORN ELECTROSTATICS
108 ; Algorithm for calculating Born radii
110 ; Frequency of calculating the Born radii inside rlist
112 ; Cutoff for Born radii calculation; the contribution from atoms
113 ; between rlist and rgbradii is updated every nstlist steps
115 ; Salt concentration in M for Generalized Born models
118 ; IMPLICIT SOLVENT (for use with Generalized Born electrostatics)
119 implicit_solvent = No
121 ; OPTIONS FOR WEAK COUPLING ALGORITHMS
122 ; Temperature coupling
124 ; Groups to couple separately
126 ; Time constant (ps) and reference temperature (K)
131 Pcoupltype = isotropic
132 ; Time constant (ps), compressibility (1/bar) and reference P (bar)
134 compressibility = 4.5e-5
136 ; Random seed for Andersen thermostat
137 andersen_seed = 815131
139 ; SIMULATED ANNEALING
140 ; Type of annealing for each temperature group (no/single/periodic)
142 ; Number of time points to use for specifying annealing in each group
144 ; List of times at the annealing points for each group
146 ; Temp. at each annealing point, for each group.
149 ; GENERATE VELOCITIES FOR STARTUP RUN
155 constraints = all-bonds
156 ; Type of constraint algorithm
157 constraint-algorithm = Lincs
158 ; Do not constrain the start configuration
159 unconstrained-start = no
160 ; Use successive overrelaxation to reduce the number of shake iterations
162 ; Relative tolerance of shake
164 ; Highest order in the expansion of the constraint coupling matrix
166 ; Number of iterations in the final step of LINCS. 1 is fine for
167 ; normal simulations, but use 2 to conserve energy in NVE runs.
168 ; For energy minimization with constraints it should be 4 to 8.
170 ; Lincs will write a warning to the stderr if in one step a bond
171 ; rotates over more degrees than
173 ; Convert harmonic bonds to morse potentials
176 ; ENERGY GROUP EXCLUSIONS
177 ; Pairs of energy groups for which all non-bonded interactions are excluded
180 ; NMR refinement stuff
181 ; Distance restraints type: No, Simple or Ensemble
183 ; Force weighting of pairs in one distance restraint: Conservative or Equal
184 disre-weighting = Conservative
185 ; Use sqrt of the time averaged times the instantaneous violation
189 ; Output frequency for pair distances to energy file
191 ; Orientation restraints: No or Yes
193 ; Orientation restraints force constant and tau for time averaging
197 ; Output frequency for trace(SD) to energy file
199 ; Dihedral angle restraints: No, Simple or Ensemble
203 ; Output frequency for dihedral values to energy file
206 ; Free energy control stuff
213 ; Non-equilibrium MD stuff
221 ; Format is number of terms (int) and for all terms an amplitude (real)
222 ; and a phase angle (real)
230 ; User defined thingies