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Anneal(1)

Synopsis

Anneal [-hoV] [--rv] [--aa=<selection>] [-b=Bussi] [-d=1.0] [-F=XYZ] [-i=Verlet] [--ia=<selection>] [-k=1.0] [--mdE=FFX] [-n=1000000] [-r=0. _ 25_] [-t=298.15] [--tl=10.0] [--tmA=0] [--tmB=0] [--tmS=EXP] [--tu=1000. _ 0_] [-w=10.0] [-W=10] [-z=100] file

Description

Run simulated annealing on a system.

Options

-F, --fileFormat=XYZ
Choose file type to write [PDB/XYZ].
-h, --help
Print command help and exit.
-V, --version
Print the Force Field X version and exit.

Atom Selection Options

--aa, --active=<selection>
Ranges of active atoms [NONE, ALL, Range(s): 1-3,6-N].
--ia, --inactive=<selection>
Ranges of inactive atoms [NONE, ALL, Range(s): 1-3,6-N].

Dynamics Options

-b, --thermostat=Bussi
Thermostat: [Adiabatic / Berendsen / Bussi].
-d, --dt=1.0
Time discretization step in femtoseconds.
-i, --integrator=Verlet
Integrator: [Beeman / Respa / Stochastic / Verlet].
-k, --checkpoint=1.0
Interval in psec to write out restart files (.dyn, .his, etc).
--mdE, --molecularDynamicsEngine=FFX
Use FFX or OpenMM to integrate dynamics.
-n, --numberOfSteps=1000000
Number of molecular dynamics steps.
-o, --optimize
Optimize and save low-energy snapshots.
-r, --report=0.25
Interval in psec to report thermodynamics (psec).
-t, --temperature=298.15
Temperature (Kelvin).
-w, --write=10.0
Interval in psec to write out coordinates (psec).
-z, --trajSteps=100
Number of steps per MD cycle (--mdE = OpenMM only).

Simulated Annealing Options

--rv, --reinitVelocities
Re-initialize velocities before each round of annealing.
--tl, --temperatureLow=10.0
Low temperature limit (Kelvin).
--tmA, --temperingAfter=0
Number of (annealing, not MD/MC) steps to remain at the low temperature
--tmB, --temperingBefore=0
Number of (annealing, not MD/MC) steps to remain at the high temperature
--tmS, --temperingSchedule=EXP
Tempering schedule: choose between EXP (exponential) or LINEAR
--tu, --temperatureUpper=1000.0
High temperature limit (Kelvin).
-W, --windows=10
Number of annealing windows.

Arguments

file
XYZ or PDB input file.