Hello,
I have an issue regarding random generation in nest version 2.18 with Python3.6. I attach a small python script that replicates my issue (less than 50 lines).
In short, I am trying to create two Poisson generators and connect them to the same neuron.
I noticed that if I reverse the order by which these Poisson generators are created (using the nest.Create()) function, then I get a different membrane potential response over time.
In the code, noise_exc is created before noise_inh. If that order is reversed, the plot is different.
My hunch is that this has to do with how nest generates random numbers. So I tried to force the creation of Poisson generators by providing a seed (lines 15 and 18). However this behavior persists.
Do you have any insights as to why this happens?
At the end of the script (lines 32-43) I provide a trivial case of the desired behavior I am trying to replicate.
Thank you for your time
Angeliki