Source code for nengo_loihi.config

import nengo
from nengo.params import Parameter


[docs]def add_params(network): """Add nengo_loihi config option to *network*. The following options will be added: `nengo.Ensemble` * ``on_chip``: Whether the ensemble should be simulated on a Loihi chip. Marking specific ensembles for simulation off of a Loihi chip can help with debugging. Examples -------- >>> with nengo.Network() as model: ... ens = nengo.Ensemble(10, dimensions=1) ... # By default, ens will be placed on a Loihi chip ... nengo_loihi.add_params(model) ... model.config[ens].on_chip = False ... # Now it will be simulated with Nengo """ config = network.config ens_cfg = config[nengo.Ensemble] if "on_chip" not in ens_cfg._extra_params: ens_cfg.set_param("on_chip", Parameter("on_chip", default=None, optional=True))
[docs]def set_defaults(): """Modify Nengo's default parameters for better performance with Loihi. The following defaults will be modified: `nengo.Ensemble` * ``max_rates``: Set to ``Uniform(low=100, high=120)`` * ``intercepts``: Set to ``Uniform(low=-0.5, high=0.5)`` """ nengo.Ensemble.max_rates.default = nengo.dists.Uniform(100, 120) nengo.Ensemble.intercepts.default = nengo.dists.Uniform(-1.0, 0.5)