1. Complex nonlinear (in dependence of parameters)
function to maximize
2. Each function value
(where 
determines events and 
are
unknown parameters) is sum of N independent calculations which is
natural form of parallelism
3. Parallelism in optimization (in space of
) depends on particular minimization approach
adopted. Also depends on complexity of calculation
versus complexity of manipulation of 
as a function of 
4. 
and Likelihood are similar in aspects
of analysis.