Example: modelfitting_machines (modelfitting)ΒΆ

Model fitting example using several machines. Before running this example, you must start the Playdoh server on the remote machines.

from brian import loadtxt, ms, Equations
from brian.library.modelfitting import *

if __name__ == '__main__':
    # List of machines IP addresses
    machines = ['bobs-machine.university.com',
                'jims-machine.university.com']

    equations = Equations('''
        dV/dt=(R*I-V)/tau : 1
        I : 1
        R : 1
        tau : second
    ''')
    input = loadtxt('current.txt')
    spikes = loadtxt('spikes.txt')
    results = modelfitting( model = equations,
                            reset = 0,
                            threshold = 1,
                            data = spikes,
                            input = input,
                            dt = .1*ms,
                            popsize = 1000,
                            maxiter = 3,
                            delta = 4*ms,
                            unit_type = 'CPU',
                            machines = machines,
                            R = [1.0e9, 9.0e9],
                            tau = [10*ms, 40*ms],
                            refractory = [0*ms, 10*ms])
    print_table(results)