ctools

In case that ctobssim operates on a list of observations, ctobssim proceeds so far observation by observation. In principle, event simulations can be done in parallel, and the possibility to parallelize event simulations should be implemented.

Note that ctobssim runs should be deterministic, hence the outcome should not depend on the fact that the simulations were run in series or in parallel. In the actual configuration this is not the case, as successive calls to the random number generator give a deterministic series of values. The state of the random generator at the end of the treatment of one observation will be the state at the beginning of the next observation. Thus, the simulated values for observation N+1 depend so far on the simulated values for simulation N.

It should be investigated whether it is possible to add a parameter so that the maximum number of threads is a user parameter.