GetGlobalRNG - return global random number generator
GetGlobalRNG -> rngtype
This function returns the global random number generator which
can be used in situations where the same sequence of random
numbers is needed in all MPI processes. The user must EXERT
EXTREME CARE to ensure that all MPI processes use exactly
the same random numbers while executing a script. NEST performs
only a simple test upon each call to Simulate to check if the
global RNGs on all MPI processes are still in sync.

[1] Morrison A, Mehring C, Geisel T, Aertsen A, and Diesmann M (2005)
Advancing the boundaries of high connectivity network simulation
with distributed computing. Neural Computation 17(8):1776-1801
The article is available at

Tobias Potjans, Moritz Helias, Diesmann  
SeeAlso: Source: