[gmx-users] random number generation

[Erik Lindahl]

Hi,

>   I am doing a many-step Brownian dynamics simulation on a collection
> of small particles. Does anyone know how the pseudo-random numbers are
> generated for Brownian random displacements? In particular, what is
> the period of the generator, and has it been shown to have no
> long-term spurious correlations?
>
I have actually added a new gaussian number generator that I might 
enable for Brownian dynamics in the next release, but I haven't had 
time to run it through any statistical test yet. If you want to put it 
to a harder test than my naive ones I'd be happy to send you a version 
of the generator for testing!

Cheers,

Erik