SD seems to use a counter based noise source, as do the other thermostats. The counter value is derived from the simulation
time by calculating sim_time / time_step, which means that if the users resets the time, the noise is repeated. This differs from
the other thermostats, where the noise is derive from a monotonous counter which can not be reset. Also the SD version leads
to correlated noise if the time step is changed.
SD seems to use a counter based noise source, as do the other thermostats. The counter value is derived from the simulation time by calculating
sim_time / time_step
, which means that if the users resets the time, the noise is repeated. This differs from the other thermostats, where the noise is derive from a monotonous counter which can not be reset. Also the SD version leads to correlated noise if the time step is changed.