"rescale 300.0 300.0 1 0.0 0.0001" will force (or keep) 
  the temperature to be 300.0, the time frame over which this occurs
  will become longer as the last parameter is made smaller
for replace style, Gaussian RNs from the Marsaglia RNG are used
for langevin style, uniform RNs from the Marsaglia RNG are used
for replace and langevin styles, the seed is used to initialize the
  Marsaglia RNG, on successive runs the RNG will just continue on
for replace and langevin styles, generated RNs depend on # of pro