Source code for spynnaker8.models.connectors.fixed_number_post_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
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# 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 <http://www.gnu.org/licenses/>.
import logging
from pyNN.connectors import (
FixedNumberPostConnector as PyNNFixedNumberPostConnector)
from spynnaker.pyNN.models.neural_projections.connectors import (
FixedNumberPostConnector as CommonFixedNumberPostConnector)
logger = logging.getLogger(__file__)
[docs]class FixedNumberPostConnector(CommonFixedNumberPostConnector,
PyNNFixedNumberPostConnector):
""" PyNN connector that puts a fixed number of connections on each of the\
post 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 post-synaptic neurons connected to pre-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(FixedNumberPostConnector, self).__init__(
n=n, allow_self_connections=allow_self_connections,
with_replacement=with_replacement, safe=safe, verbose=verbose,
rng=rng)