Source code for spynnaker8.models.connectors.fixed_number_pre_connector

# Copyright (c) 2017-2019 The University of Manchester
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <>.

import logging
from pyNN.connectors import (
    FixedNumberPreConnector as PyNNFixedNumberPreConnector)
from spynnaker.pyNN.models.neural_projections.connectors import (
    FixedNumberPreConnector as CommonFixedNumberPreConnector)

logger = logging.getLogger(__file__)

[docs]class FixedNumberPreConnector(CommonFixedNumberPreConnector, PyNNFixedNumberPreConnector): """ Connects a fixed number of pre-synaptic neurons selected at random,\ to all post-synaptic neurons. """ __slots__ = [] def __init__( self, n, allow_self_connections=True, safe=True, verbose=False, with_replacement=False, rng=None, callback=None): """ :param int n: number of random pre-synaptic neurons connected to post-neurons :param bool allow_self_connections: if the connector is used to connect a Population to itself, this flag determines whether a neuron is allowed to connect to itself, or only to other neurons in the Population. :param bool safe: Whether to check that weights and delays have valid values. If False, this check is skipped. :param bool verbose: Whether to output extra information about the connectivity to a CSV file :param bool with_replacement: if False, once a connection is made, it can't be made again; if True, multiple connections between the same pair of neurons are allowed :param rng: random number generator :type rng: ~pyNN.random.NumpyRNG or None :param callable callback: if given, a callable that display a progress bar on the terminal. .. note:: Not supported by sPyNNaker. """ # pylint: disable=too-many-arguments super(FixedNumberPreConnector, self).__init__( n=n, allow_self_connections=allow_self_connections, with_replacement=with_replacement, safe=safe, verbose=verbose, rng=rng)