How can I run the model multiple times?

General Discussion
1

Hey there,
I am trying to create a network model and I added that model some randomness. So, in order to see what kind of changes have occured in the system each time I run, I tried to sim.run the model multiple times with for loop:

with nengo.Simulator(model) as sim:

    n_steps = 5
    for i in range(0, n_steps):
        sim.run(0.5)

But It seems like whenever i run the system with “for i” the system picks up where it left off "0.5->1.0->1.5 ". But I want the model to start over every time to collect data from each simulation. I would be very grateful if someone could help me with that. Thanks!

2

hello! to regenerate the model each time and start from time zero, the easiest way is to put the for loop outside the with block.

data = []
for ii in range(0, n_trials):
    with nengo.Simulator(model) as sim:
        sim.run(0.5)
        data.append(sim.data[probe])

Note that i’m assuming you have a probe in your network.

Alternatively, at the end of the for loop you can call sim.reset(), but note that the network won’t be regenerated so you’ll be running a network with all the same parameters.

1 Like
3

Thank you so much for your kind respond. When I put the for loop outside the with block, it solves my problem :+1:.