def test_get_max_row_bytes(dynamics, size, exception, max_size):
io = SynapseIORowBased()
population_table = MasterPopTableAsBinarySearch()
synapse_information = SynapseInformation(None, dynamics, 0)
in_edge = ProjectionApplicationEdge(None, None, synapse_information)
if exception is not None:
with pytest.raises(exception) as exc_info:
io._get_max_row_bytes(size, dynamics, population_table, in_edge,
size)
assert exc_info.value.max_size == max_size
else:
actual_size = io._get_max_row_bytes(size, dynamics, population_table,
in_edge, size)
assert actual_size == max_size
def test_get_allowed_row_length(dynamics_class, timing, weight, size,
exception, max_size):
spynnaker8.setup()
if timing is not None and weight is not None:
dynamics = dynamics_class(timing(), weight())
else:
dynamics = dynamics_class()
synapse_information = SynapseInformation(None, None, None, False, False,
None, None, dynamics, 0, True)
in_edge = ProjectionApplicationEdge(None, None, synapse_information)
if exception is not None:
with pytest.raises(exception) as exc_info:
_get_allowed_row_length(size, dynamics, in_edge, size)
assert exc_info.value.max_size == max_size
else:
actual_size = _get_allowed_row_length(size, dynamics, in_edge, size)
assert actual_size == max_size
def test_slices():
unittest_setup()
app_edge = ProjectionApplicationEdge(None, None, None)
mv0_2 = SimpleMachineVertex(None, None, None, None, Slice(0, 1))
mv2_4 = SimpleMachineVertex(None, None, None, None, Slice(2, 3))
mv4_6 = SimpleMachineVertex(None, None, None, None, Slice(4, 5))
app_edge.remember_associated_machine_edge(MachineEdge(mv0_2, mv2_4))
app_edge.remember_associated_machine_edge(MachineEdge(mv4_6, mv0_2))
app_edge.remember_associated_machine_edge(MachineEdge(mv0_2, mv2_4))
assert app_edge.pre_slices == [Slice(0, 1), Slice(4, 5)]
post1 = app_edge.post_slices
assert post1 == [Slice(0, 1), Slice(2, 3)]
app_edge.remember_associated_machine_edge(MachineEdge(mv0_2, mv0_2))
app_edge.remember_associated_machine_edge(MachineEdge(mv2_4, mv2_4))
assert app_edge.pre_slices == [Slice(0, 1), Slice(2, 3), Slice(4, 5)]
post2 = app_edge.post_slices
assert post1 == post2
assert id(post1) != id(post2)
def test_get_max_row_length(dynamics_class, timing, weight, size, exception,
max_size):
MockSimulator.setup()
if timing is not None and weight is not None:
dynamics = dynamics_class(timing(), weight())
else:
dynamics = dynamics_class()
io = SynapseIORowBased()
population_table = MasterPopTableAsBinarySearch()
synapse_information = SynapseInformation(None, None, None, None, None,
None, dynamics, 0)
in_edge = ProjectionApplicationEdge(None, None, synapse_information)
if exception is not None:
with pytest.raises(exception) as exc_info:
io._get_max_row_length(size, dynamics, population_table, in_edge,
size)
assert exc_info.value.max_size == max_size
else:
actual_size = io._get_max_row_length(size, dynamics, population_table,
in_edge, size)
assert actual_size == max_size
def __init__(self, spinnaker_control, connector, synapse_dynamics_stdp,
target, pre_synaptic_population, post_synaptic_population,
rng, machine_time_step, user_max_delay, label,
time_scale_factor):
# pylint: disable=too-many-arguments, too-many-locals
self._spinnaker_control = spinnaker_control
self._projection_edge = None
self._host_based_synapse_list = None
self._has_retrieved_synaptic_list_from_machine = False
self._requires_mapping = True
self._label = None
if not isinstance(post_synaptic_population._get_vertex,
AbstractAcceptsIncomingSynapses):
raise ConfigurationException(
"postsynaptic population is not designed to receive"
" synaptic projections")
# sort out synapse type
synapse_type = post_synaptic_population._get_vertex\
.get_synapse_id_by_target(target)
if synapse_type is None:
raise ConfigurationException(
"Synapse target {} not found in {}".format(
target, post_synaptic_population.label))
# set the plasticity dynamics for the post pop (allows plastic stuff
# when needed)
post_synaptic_population._get_vertex.set_synapse_dynamics(
synapse_dynamics_stdp)
# Set and store information for future processing
self._synapse_information = SynapseInformation(connector,
synapse_dynamics_stdp,
synapse_type)
connector.set_projection_information(pre_synaptic_population,
post_synaptic_population, rng,
machine_time_step)
# handle max delay
max_delay = synapse_dynamics_stdp.get_delay_maximum(connector)
if max_delay is None:
max_delay = user_max_delay
# check if all delays requested can fit into the natively supported
# delays in the models
post_vertex_max_supported_delay_ms = \
post_synaptic_population._get_vertex \
.get_maximum_delay_supported_in_ms(machine_time_step)
if max_delay > (post_vertex_max_supported_delay_ms +
_delay_extension_max_supported_delay):
raise ConfigurationException(
"The maximum delay {} for projection is not supported".format(
max_delay))
if max_delay > user_max_delay / (machine_time_step / 1000.0):
logger.warning("The end user entered a max delay"
" for which the projection breaks")
# check that the projection edges label is not none, and give an
# auto generated label if set to None
if label is None:
label = "projection edge {}".format(
spinnaker_control.none_labelled_edge_count)
spinnaker_control.increment_none_labelled_edge_count()
# Find out if there is an existing edge between the populations
edge_to_merge = self._find_existing_edge(
pre_synaptic_population._get_vertex,
post_synaptic_population._get_vertex)
if edge_to_merge is not None:
# If there is an existing edge, add the connector
edge_to_merge.add_synapse_information(self._synapse_information)
self._projection_edge = edge_to_merge
else:
# If there isn't an existing edge, create a new one
self._projection_edge = ProjectionApplicationEdge(
pre_synaptic_population._get_vertex,
post_synaptic_population._get_vertex,
self._synapse_information,
label=label)
# add edge to the graph
spinnaker_control.add_application_edge(
self._projection_edge, constants.SPIKE_PARTITION_ID)
# If the delay exceeds the post vertex delay, add a delay extension
if max_delay > post_vertex_max_supported_delay_ms:
delay_edge = self._add_delay_extension(
pre_synaptic_population, post_synaptic_population, max_delay,
post_vertex_max_supported_delay_ms, machine_time_step,
time_scale_factor)
self._projection_edge.delay_edge = delay_edge
# add projection to the SpiNNaker control system
spinnaker_control.add_projection(self)
# If there is a virtual board, we need to hold the data in case the
# user asks for it
self._virtual_connection_list = None
if spinnaker_control.use_virtual_board:
self._virtual_connection_list = list()
pre_vertex = pre_synaptic_population._get_vertex
post_vertex = post_synaptic_population._get_vertex
connection_holder = ConnectionHolder(None, False,
pre_vertex.n_atoms,
post_vertex.n_atoms,
self._virtual_connection_list)
post_vertex.add_pre_run_connection_holder(
connection_holder, self._projection_edge,
self._synapse_information)
def test_write_synaptic_matrix_and_master_population_table(self):
MockSimulator.setup()
default_config_paths = os.path.join(
os.path.dirname(abstract_spinnaker_common.__file__),
AbstractSpiNNakerCommon.CONFIG_FILE_NAME)
config = conf_loader.load_config(
AbstractSpiNNakerCommon.CONFIG_FILE_NAME, default_config_paths)
config.set("Simulation", "one_to_one_connection_dtcm_max_bytes", 40)
machine_time_step = 1000.0
pre_app_vertex = SimpleApplicationVertex(10)
pre_vertex = SimpleMachineVertex(resources=None)
pre_vertex_slice = Slice(0, 9)
post_app_vertex = SimpleApplicationVertex(10)
post_vertex = SimpleMachineVertex(resources=None)
post_vertex_slice = Slice(0, 9)
post_slice_index = 0
one_to_one_connector_1 = OneToOneConnector(None)
one_to_one_connector_1.set_projection_information(
pre_app_vertex, post_app_vertex, None, machine_time_step)
one_to_one_connector_1.set_weights_and_delays(1.5, 1.0)
one_to_one_connector_2 = OneToOneConnector(None)
one_to_one_connector_2.set_projection_information(
pre_app_vertex, post_app_vertex, None, machine_time_step)
one_to_one_connector_2.set_weights_and_delays(2.5, 2.0)
all_to_all_connector = AllToAllConnector(None)
all_to_all_connector.set_projection_information(
pre_app_vertex, post_app_vertex, None, machine_time_step)
all_to_all_connector.set_weights_and_delays(4.5, 4.0)
direct_synapse_information_1 = SynapseInformation(
one_to_one_connector_1, SynapseDynamicsStatic(), 0)
direct_synapse_information_2 = SynapseInformation(
one_to_one_connector_2, SynapseDynamicsStatic(), 1)
all_to_all_synapse_information = SynapseInformation(
all_to_all_connector, SynapseDynamicsStatic(), 0)
app_edge = ProjectionApplicationEdge(pre_app_vertex, post_app_vertex,
direct_synapse_information_1)
app_edge.add_synapse_information(direct_synapse_information_2)
app_edge.add_synapse_information(all_to_all_synapse_information)
machine_edge = ProjectionMachineEdge(app_edge.synapse_information,
pre_vertex, post_vertex)
partition_name = "TestPartition"
graph = MachineGraph("Test")
graph.add_vertex(pre_vertex)
graph.add_vertex(post_vertex)
graph.add_edge(machine_edge, partition_name)
graph_mapper = GraphMapper()
graph_mapper.add_vertex_mapping(pre_vertex, pre_vertex_slice,
pre_app_vertex)
graph_mapper.add_vertex_mapping(post_vertex, post_vertex_slice,
post_app_vertex)
graph_mapper.add_edge_mapping(machine_edge, app_edge)
weight_scales = [4096.0, 4096.0]
key = 0
routing_info = RoutingInfo()
routing_info.add_partition_info(
PartitionRoutingInfo(
[BaseKeyAndMask(key, 0xFFFFFFF0)],
graph.get_outgoing_edge_partition_starting_at_vertex(
pre_vertex, partition_name)))
temp_spec = tempfile.mktemp()
spec_writer = FileDataWriter(temp_spec)
spec = DataSpecificationGenerator(spec_writer, None)
master_pop_sz = 1000
master_pop_region = 0
all_syn_block_sz = 2000
synapse_region = 1
spec.reserve_memory_region(master_pop_region, master_pop_sz)
spec.reserve_memory_region(synapse_region, all_syn_block_sz)
synapse_type = MockSynapseType()
synaptic_manager = SynapticManager(synapse_type=synapse_type,
ring_buffer_sigma=5.0,
spikes_per_second=100.0,
config=config)
synaptic_manager._write_synaptic_matrix_and_master_population_table(
spec, [post_vertex_slice], post_slice_index, post_vertex,
post_vertex_slice, all_syn_block_sz, weight_scales,
master_pop_region, synapse_region, routing_info, graph_mapper,
graph, machine_time_step)
spec.end_specification()
spec_writer.close()
spec_reader = FileDataReader(temp_spec)
executor = DataSpecificationExecutor(spec_reader,
master_pop_sz + all_syn_block_sz)
executor.execute()
master_pop_table = executor.get_region(0)
synaptic_matrix = executor.get_region(1)
all_data = bytearray()
all_data.extend(
master_pop_table.region_data[:master_pop_table.max_write_pointer])
all_data.extend(
synaptic_matrix.region_data[:synaptic_matrix.max_write_pointer])
master_pop_table_address = 0
synaptic_matrix_address = master_pop_table.max_write_pointer
direct_synapses_address = struct.unpack_from(
"<I", synaptic_matrix.region_data)[0]
direct_synapses_address += synaptic_matrix_address + 8
indirect_synapses_address = synaptic_matrix_address + 4
placement = Placement(None, 0, 0, 1)
transceiver = MockTransceiverRawData(all_data)
# Get the master population table details
items = synaptic_manager._poptable_type\
.extract_synaptic_matrix_data_location(
key, master_pop_table_address, transceiver,
placement.x, placement.y)
# The first entry should be direct, but the rest should be indirect;
# the second is potentially direct, but has been restricted by the
# restriction on the size of the direct matrix
assert len(items) == 3
# TODO: This has been changed because direct matrices are disabled!
assert not items[0][2]
assert not items[1][2]
assert not items[2][2]
data_1, row_len_1 = synaptic_manager._retrieve_synaptic_block(
transceiver=transceiver,
placement=placement,
master_pop_table_address=master_pop_table_address,
indirect_synapses_address=indirect_synapses_address,
direct_synapses_address=direct_synapses_address,
key=key,
n_rows=pre_vertex_slice.n_atoms,
index=0,
using_extra_monitor_cores=False)
connections_1 = synaptic_manager._synapse_io.read_synapses(
direct_synapse_information_1, pre_vertex_slice, post_vertex_slice,
row_len_1, 0, 2, weight_scales, data_1, None,
app_edge.n_delay_stages, machine_time_step)
# The first matrix is a 1-1 matrix, so row length is 1
assert row_len_1 == 1
# Check that all the connections have the right weight and delay
assert len(connections_1) == post_vertex_slice.n_atoms
assert all([conn["weight"] == 1.5 for conn in connections_1])
assert all([conn["delay"] == 1.0 for conn in connections_1])
data_2, row_len_2 = synaptic_manager._retrieve_synaptic_block(
transceiver=transceiver,
placement=placement,
master_pop_table_address=master_pop_table_address,
indirect_synapses_address=indirect_synapses_address,
direct_synapses_address=direct_synapses_address,
key=key,
n_rows=pre_vertex_slice.n_atoms,
index=1,
using_extra_monitor_cores=False)
connections_2 = synaptic_manager._synapse_io.read_synapses(
direct_synapse_information_2, pre_vertex_slice, post_vertex_slice,
row_len_2, 0, 2, weight_scales, data_2, None,
app_edge.n_delay_stages, machine_time_step)
# The second matrix is a 1-1 matrix, so row length is 1
assert row_len_2 == 1
# Check that all the connections have the right weight and delay
assert len(connections_2) == post_vertex_slice.n_atoms
assert all([conn["weight"] == 2.5 for conn in connections_2])
assert all([conn["delay"] == 2.0 for conn in connections_2])
data_3, row_len_3 = synaptic_manager._retrieve_synaptic_block(
transceiver=transceiver,
placement=placement,
master_pop_table_address=master_pop_table_address,
indirect_synapses_address=indirect_synapses_address,
direct_synapses_address=direct_synapses_address,
key=key,
n_rows=pre_vertex_slice.n_atoms,
index=2,
using_extra_monitor_cores=False)
connections_3 = synaptic_manager._synapse_io.read_synapses(
all_to_all_synapse_information, pre_vertex_slice,
post_vertex_slice, row_len_3, 0, 2, weight_scales, data_3, None,
app_edge.n_delay_stages, machine_time_step)
# The third matrix is an all-to-all matrix, so length is n_atoms
assert row_len_3 == post_vertex_slice.n_atoms
# Check that all the connections have the right weight and delay
assert len(connections_3) == \
post_vertex_slice.n_atoms * pre_vertex_slice.n_atoms
assert all([conn["weight"] == 4.5 for conn in connections_3])
assert all([conn["delay"] == 4.0 for conn in connections_3])
def __init__(self,
pre_synaptic_population,
post_synaptic_population,
connector,
synapse_type=None,
source=None,
receptor_type=None,
space=None,
label=None):
"""
:param ~spynnaker.pyNN.models.populations.PopulationBase \
pre_synaptic_population:
:param ~spynnaker.pyNN.models.populations.PopulationBase \
post_synaptic_population:
:param AbstractConnector connector:
:param AbstractSynapseDynamics synapse_type:
:param None source: Unsupported; must be None
:param str receptor_type:
:param ~pyNN.space.Space space:
:param str label:
"""
# pylint: disable=too-many-arguments, too-many-locals
if source is not None:
raise NotImplementedError(
"sPyNNaker {} does not yet support multi-compartmental "
"cells.".format(__version__))
sim = get_simulator()
self.__projection_edge = None
self.__host_based_synapse_list = None
self.__has_retrieved_synaptic_list_from_machine = False
self.__requires_mapping = True
self.__label = label
pre_is_view = self.__check_population(pre_synaptic_population,
connector)
post_is_view = self.__check_population(post_synaptic_population,
connector)
# set default label
if label is None:
# set the projection's label to a default (maybe non-unique!)
self.__label = ("from pre {} to post {} with connector {}".format(
pre_synaptic_population.label, post_synaptic_population.label,
connector))
# give an auto generated label for the underlying edge
label = "projection edge {}".format(sim.none_labelled_edge_count)
sim.increment_none_labelled_edge_count()
# Handle default synapse type
if synapse_type is None:
synapse_dynamics = SynapseDynamicsStatic()
else:
synapse_dynamics = synapse_type
# set the space function as required
if space is None:
space = PyNNSpace()
connector.set_space(space)
pre_vertex = pre_synaptic_population._vertex
post_vertex = post_synaptic_population._vertex
if not isinstance(post_vertex, AbstractAcceptsIncomingSynapses):
raise ConfigurationException(
"postsynaptic population is not designed to receive"
" synaptic projections")
# sort out synapse type
synaptic_type = post_vertex.get_synapse_id_by_target(receptor_type)
synapse_type_from_dynamics = False
if synaptic_type is None:
synaptic_type = synapse_dynamics.get_synapse_id_by_target(
receptor_type)
synapse_type_from_dynamics = True
if synaptic_type is None:
raise ConfigurationException(
"Synapse target {} not found in {}".format(
receptor_type, post_synaptic_population.label))
# as a from-list connector can have plastic parameters, grab those (
# if any) and add them to the synapse dynamics object
if isinstance(connector, FromListConnector):
connector._apply_parameters_to_synapse_type(synaptic_type)
# round the delays to multiples of full timesteps
# (otherwise SDRAM estimation calculations can go wrong)
if ((not isinstance(synapse_dynamics.delay, RandomDistribution))
and (not isinstance(synapse_dynamics.delay, str))):
synapse_dynamics.set_delay(
numpy.rint(
numpy.array(synapse_dynamics.delay) *
machine_time_step_per_ms()) * machine_time_step_ms())
# set the plasticity dynamics for the post pop (allows plastic stuff
# when needed)
post_vertex.set_synapse_dynamics(synapse_dynamics)
# get rng if needed
rng = connector.rng if hasattr(connector, "rng") else None
# Set and store synapse information for future processing
self.__synapse_information = SynapseInformation(
connector, pre_synaptic_population, post_synaptic_population,
pre_is_view, post_is_view, rng, synapse_dynamics, synaptic_type,
receptor_type, sim.use_virtual_board, synapse_type_from_dynamics,
synapse_dynamics.weight, synapse_dynamics.delay)
# Set projection information in connector
connector.set_projection_information(self.__synapse_information)
# Find out if there is an existing edge between the populations
edge_to_merge = self._find_existing_edge(pre_vertex, post_vertex)
if edge_to_merge is not None:
# If there is an existing edge, add the connector
edge_to_merge.add_synapse_information(self.__synapse_information)
self.__projection_edge = edge_to_merge
else:
# If there isn't an existing edge, create a new one and add it
self.__projection_edge = ProjectionApplicationEdge(
pre_vertex,
post_vertex,
self.__synapse_information,
label=label)
sim.add_application_edge(self.__projection_edge,
SPIKE_PARTITION_ID)
# add projection to the SpiNNaker control system
sim.add_projection(self)
# If there is a virtual board, we need to hold the data in case the
# user asks for it
self.__virtual_connection_list = None
if sim.use_virtual_board:
self.__virtual_connection_list = list()
connection_holder = ConnectionHolder(
None, False, pre_vertex.n_atoms, post_vertex.n_atoms,
self.__virtual_connection_list)
self.__synapse_information.add_pre_run_connection_holder(
connection_holder)
# If the target is a population, add to the list of incoming
# projections
if isinstance(post_vertex, AbstractPopulationVertex):
post_vertex.add_incoming_projection(self)
# If the source is a poisson, add to the list of outgoing projections
if isinstance(pre_vertex, SpikeSourcePoissonVertex):
pre_vertex.add_outgoing_projection(self)
def test_write_synaptic_matrix_and_master_population_table(self):
MockSimulator.setup()
# Add an sdram so max SDRAM is high enough
SDRAM(10000)
# UGLY but the mock transceiver NEED generate_on_machine to be False
AbstractGenerateConnectorOnMachine.generate_on_machine = self.say_false
default_config_paths = os.path.join(
os.path.dirname(abstract_spinnaker_common.__file__),
AbstractSpiNNakerCommon.CONFIG_FILE_NAME)
config = conf_loader.load_config(
AbstractSpiNNakerCommon.CONFIG_FILE_NAME, default_config_paths)
config.set("Simulation", "one_to_one_connection_dtcm_max_bytes", 40)
machine_time_step = 1000.0
pre_app_vertex = SimpleApplicationVertex(10)
pre_vertex_slice = Slice(0, 9)
pre_vertex = pre_app_vertex.create_machine_vertex(
pre_vertex_slice, None)
post_app_vertex = SimpleApplicationVertex(10)
post_vertex_slice = Slice(0, 9)
post_vertex = post_app_vertex.create_machine_vertex(
post_vertex_slice, None)
post_slice_index = 0
one_to_one_connector_1 = OneToOneConnector(None)
direct_synapse_information_1 = SynapseInformation(
one_to_one_connector_1, pre_app_vertex, post_app_vertex, False,
False, None, SynapseDynamicsStatic(), 0, 1.5, 1.0)
one_to_one_connector_1.set_projection_information(
machine_time_step, direct_synapse_information_1)
one_to_one_connector_2 = OneToOneConnector(None)
direct_synapse_information_2 = SynapseInformation(
one_to_one_connector_2, pre_app_vertex, post_app_vertex, False,
False, None, SynapseDynamicsStatic(), 1, 2.5, 2.0)
one_to_one_connector_2.set_projection_information(
machine_time_step, direct_synapse_information_2)
all_to_all_connector = AllToAllConnector(None)
all_to_all_synapse_information = SynapseInformation(
all_to_all_connector, pre_app_vertex, post_app_vertex, False,
False, None, SynapseDynamicsStatic(), 0, 4.5, 4.0)
all_to_all_connector.set_projection_information(
machine_time_step, all_to_all_synapse_information)
app_edge = ProjectionApplicationEdge(pre_app_vertex, post_app_vertex,
direct_synapse_information_1)
app_edge.add_synapse_information(direct_synapse_information_2)
app_edge.add_synapse_information(all_to_all_synapse_information)
machine_edge = app_edge.create_machine_edge(pre_vertex,
post_vertex,
label=None)
partition_name = "TestPartition"
graph = MachineGraph("Test")
graph.add_vertex(pre_vertex)
graph.add_vertex(post_vertex)
graph.add_edge(machine_edge, partition_name)
weight_scales = [4096.0, 4096.0]
key = 0
routing_info = RoutingInfo()
routing_info.add_partition_info(
PartitionRoutingInfo(
[BaseKeyAndMask(key, 0xFFFFFFF0)],
graph.get_outgoing_edge_partition_starting_at_vertex(
pre_vertex, partition_name)))
temp_spec = tempfile.mktemp()
spec_writer = FileDataWriter(temp_spec)
spec = DataSpecificationGenerator(spec_writer, None)
master_pop_sz = 1000
all_syn_block_sz = 2000
master_pop_region = 0
synapse_region = 1
direct_region = 2
spec.reserve_memory_region(master_pop_region, master_pop_sz)
spec.reserve_memory_region(synapse_region, all_syn_block_sz)
synaptic_manager = SynapticManager(n_synapse_types=2,
ring_buffer_sigma=5.0,
spikes_per_second=100.0,
config=config)
# Poke in our testing region IDs
synaptic_manager._pop_table_region = master_pop_region
synaptic_manager._synaptic_matrix_region = synapse_region
synaptic_manager._direct_matrix_region = direct_region
synaptic_manager._write_synaptic_matrix_and_master_population_table(
spec, [post_vertex_slice], post_slice_index, post_vertex,
post_vertex_slice, all_syn_block_sz, weight_scales, routing_info,
graph, machine_time_step)
spec.end_specification()
spec_writer.close()
spec_reader = FileDataReader(temp_spec)
executor = DataSpecificationExecutor(spec_reader,
master_pop_sz + all_syn_block_sz)
executor.execute()
master_pop_table = executor.get_region(0)
synaptic_matrix = executor.get_region(1)
direct_matrix = executor.get_region(2)
all_data = bytearray()
all_data.extend(
master_pop_table.region_data[:master_pop_table.max_write_pointer])
all_data.extend(
synaptic_matrix.region_data[:synaptic_matrix.max_write_pointer])
all_data.extend(
direct_matrix.region_data[:direct_matrix.max_write_pointer])
master_pop_table_address = 0
synaptic_matrix_address = master_pop_table.max_write_pointer
direct_synapses_address = (synaptic_matrix_address +
synaptic_matrix.max_write_pointer)
direct_synapses_address += 4
indirect_synapses_address = synaptic_matrix_address
placement = Placement(None, 0, 0, 1)
transceiver = MockTransceiverRawData(all_data)
# Get the master population table details
items = synaptic_manager._extract_synaptic_matrix_data_location(
key, master_pop_table_address, transceiver, placement)
# The first entry should be direct, but the rest should be indirect;
# the second is potentially direct, but has been restricted by the
# restriction on the size of the direct matrix
assert len(items) == 3
assert items[0][2]
assert not items[1][2]
assert not items[2][2]
data_1, row_len_1 = synaptic_manager._retrieve_synaptic_block(
txrx=transceiver,
placement=placement,
master_pop_table_address=master_pop_table_address,
indirect_synapses_address=indirect_synapses_address,
direct_synapses_address=direct_synapses_address,
key=key,
n_rows=pre_vertex_slice.n_atoms,
index=0,
using_monitors=False)
connections_1 = synaptic_manager._read_synapses(
direct_synapse_information_1, pre_vertex_slice, post_vertex_slice,
row_len_1, 0, weight_scales, data_1, None, machine_time_step)
# The first matrix is a 1-1 matrix, so row length is 1
assert row_len_1 == 1
# Check that all the connections have the right weight and delay
assert len(connections_1) == post_vertex_slice.n_atoms
assert all([conn["weight"] == 1.5 for conn in connections_1])
assert all([conn["delay"] == 1.0 for conn in connections_1])
data_2, row_len_2 = synaptic_manager._retrieve_synaptic_block(
txrx=transceiver,
placement=placement,
master_pop_table_address=master_pop_table_address,
indirect_synapses_address=indirect_synapses_address,
direct_synapses_address=direct_synapses_address,
key=key,
n_rows=pre_vertex_slice.n_atoms,
index=1,
using_monitors=False)
connections_2 = synaptic_manager._read_synapses(
direct_synapse_information_2, pre_vertex_slice, post_vertex_slice,
row_len_2, 0, weight_scales, data_2, None, machine_time_step)
# The second matrix is a 1-1 matrix, so row length is 1
assert row_len_2 == 1
# Check that all the connections have the right weight and delay
assert len(connections_2) == post_vertex_slice.n_atoms
assert all([conn["weight"] == 2.5 for conn in connections_2])
assert all([conn["delay"] == 2.0 for conn in connections_2])
data_3, row_len_3 = synaptic_manager._retrieve_synaptic_block(
txrx=transceiver,
placement=placement,
master_pop_table_address=master_pop_table_address,
indirect_synapses_address=indirect_synapses_address,
direct_synapses_address=direct_synapses_address,
key=key,
n_rows=pre_vertex_slice.n_atoms,
index=2,
using_monitors=False)
connections_3 = synaptic_manager._read_synapses(
all_to_all_synapse_information, pre_vertex_slice,
post_vertex_slice, row_len_3, 0, weight_scales, data_3, None,
machine_time_step)
# The third matrix is an all-to-all matrix, so length is n_atoms
assert row_len_3 == post_vertex_slice.n_atoms
# Check that all the connections have the right weight and delay
assert len(connections_3) == \
post_vertex_slice.n_atoms * pre_vertex_slice.n_atoms
assert all([conn["weight"] == 4.5 for conn in connections_3])
assert all([conn["delay"] == 4.0 for conn in connections_3])