Access probes during the simulation (using NengoDL)

[xchoo]

@Timodz

Can i use the for loop and replace the 10 by simulation_step instead of sim.run(simulation_time) in order to run the simulation since this way i can access the probes ?

Yes, you should be able to replace 10 with simulation_time / dt to get the equivalent of sim.run(simluation_time).

@Timodz

if yes, any consequences on the performances by using this way ?

In standard Nengo, I can confidently say that there shouldn’t be a performance difference between the two approaches. With NengoDL though, I am not as confident. Looking at the NengoDL code base, if you are using the NengoDL simulator like the Nengo simulator (i.e., you aren’t using it to do any batch runs, or have a non-default minibatch_size parameter), then it should have no performance difference. Otherwise, running sim.run may be faster than doing the for loop. I’ll have to double check with the author of NengoDL, but he’s on holiday and won’t be back until the new year.

If you do want to do batch runs, and think that there may be a performance impact, then you might have to modify the logging of data to use the Nengo process approach as I outlined in this post (see The more Nengo way).