6 In this chapter we first give describe some general concepts used in
7 |Gromacs|: *periodic boundary conditions* (sec. :ref:`pbc`) and the *group
8 concept* (sec. :ref:`groupconcept`). The MD algorithm is described in
9 sec. :ref:`MD`: first a global form of the algorithm is given, which is
10 refined in subsequent subsections. The (simple) EM (Energy Minimization)
11 algorithm is described in sec. :ref:`EM`. Some other algorithms for
12 special purpose dynamics are described after this.
14 A few issues are of general interest. In all cases the *system* must be
15 defined, consisting of molecules. Molecules again consist of particles
16 with defined interaction functions. The detailed description of the
17 *topology* of the molecules and of the *force field* and the calculation
18 of forces is given in chapter :ref:`ff`. In the present chapter we
19 describe other aspects of the algorithm, such as pair list generation,
20 update of velocities and positions, coupling to external temperature and
21 pressure, conservation of constraints. The *analysis* of the data
22 generated by an MD simulation is treated in chapter :ref:`analysis`.
27 algorithms/periodic-boundary-conditions
28 algorithms/group-concept
29 algorithms/molecular-dynamics
30 algorithms/shell-molecular-dynamics
31 algorithms/constraint-algorithms
32 algorithms/simulated-annealing
33 algorithms/stochastic-dynamics
34 algorithms/brownian-dynamics
35 algorithms/energy-minimization
36 algorithms/normal-mode-analysis
37 algorithms/free-energy-calculations
38 algorithms/replica-exchange
39 algorithms/essential-dynamics
40 algorithms/expanded-ensemble
41 algorithms/parallelization-domain-decomp