# 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 sys
from spinn_utilities.overrides import overrides
from pacman.model.graphs.application import ApplicationVertex
from pacman.model.resources import (
CPUCyclesPerTickResource, DTCMResource, ResourceContainer,
ReverseIPtagResource)
from pacman.model.constraints.placer_constraints import BoardConstraint
from spinn_front_end_common.abstract_models import (
AbstractProvidesOutgoingPartitionConstraints)
from spinn_front_end_common.abstract_models.impl import (
ProvidesKeyToAtomMappingImpl)
from spinn_front_end_common.utilities.constants import SDP_PORTS
from .reverse_ip_tag_multicast_source_machine_vertex import (
ReverseIPTagMulticastSourceMachineVertex)
from spinn_front_end_common.abstract_models import (
AbstractGeneratesDataSpecification, AbstractHasAssociatedBinary)
from spinn_front_end_common.utilities.utility_objs import ExecutableType
from spinn_front_end_common.utilities import globals_variables
[docs]class ReverseIpTagMultiCastSource(
ApplicationVertex, AbstractGeneratesDataSpecification,
AbstractHasAssociatedBinary,
AbstractProvidesOutgoingPartitionConstraints,
ProvidesKeyToAtomMappingImpl):
""" A model which will allow events to be injected into a SpiNNaker\
machine and converted into multicast packets.
"""
def __init__(
self, n_keys, label=None, constraints=None,
max_atoms_per_core=sys.maxsize,
# General parameters
board_address=None,
# Live input parameters
receive_port=None,
receive_sdp_port=SDP_PORTS.INPUT_BUFFERING_SDP_PORT.value,
receive_tag=None,
receive_rate=10,
# Key parameters
virtual_key=None, prefix=None,
prefix_type=None, check_keys=False,
# Send buffer parameters
send_buffer_times=None,
send_buffer_partition_id=None,
# Extra flag for input without a reserved port
reserve_reverse_ip_tag=False):
"""
:param n_keys: The number of keys to be sent via this multicast source
:param label: The label of this vertex
:param constraints: Any initial constraints to this vertex
:param board_address: The IP address of the board on which to place\
this vertex if receiving data, either buffered or live (by\
default, any board is chosen)
:param receive_port: The port on the board that will listen for\
incoming event packets (default is to disable this feature; set a\
value to enable it)
:param receive_sdp_port: The SDP port to listen on for incoming event\
packets (defaults to 1)
:param receive_tag: The IP tag to use for receiving live events\
(uses any by default)
:param receive_rate: The estimated rate of packets that will be sent\
by this source
:param virtual_key: The base multicast key to send received events\
with (assigned automatically by default)
:param prefix: The prefix to "or" with generated multicast keys\
(default is no prefix)
:param prefix_type: Whether the prefix should apply to the upper or\
lower half of the multicast keys (default is upper half)
:param check_keys: True if the keys of received events should be\
verified before sending (default False)
:param send_buffer_times: An array of arrays of times at which keys\
should be sent (one array for each key, default disabled)
:param send_buffer_partition_id: The ID of the partition containing\
the edges down which the events are to be sent
:param send_buffer_max_space: The maximum amount of space to use of\
the SDRAM on the machine (default is 1MB)
:param send_buffer_space_before_notify: The amount of space free in\
the sending buffer before the machine will ask the host for more\
data (default setting is optimised for most cases)
:param buffer_notification_ip_address: The IP address of the host\
that will send new buffers (must be specified if a send buffer is\
specified or if recording will be used)
:param buffer_notification_port: The port that the host that will\
send new buffers is listening on (must be specified if a send\
buffer is specified, or if recording will be used)
:param buffer_notification_tag: The IP tag to use to notify the\
host about space in the buffer (default is to use any tag)
"""
# pylint: disable=too-many-arguments, too-many-locals
super(ReverseIpTagMultiCastSource, self).__init__(
label, constraints, max_atoms_per_core)
# basic items
self._n_atoms = n_keys
# Store the parameters for EIEIO
self._board_address = board_address
self._receive_port = receive_port
self._receive_sdp_port = receive_sdp_port
self._receive_tag = receive_tag
self._receive_rate = receive_rate
self._virtual_key = virtual_key
self._prefix = prefix
self._prefix_type = prefix_type
self._check_keys = check_keys
self._reverse_iptags = None
if receive_port is not None or reserve_reverse_ip_tag:
self._reverse_iptags = [ReverseIPtagResource(
port=receive_port, sdp_port=receive_sdp_port,
tag=receive_tag)]
if board_address is not None:
self.add_constraint(BoardConstraint(board_address))
# Store the send buffering details
self._send_buffer_times = send_buffer_times
self._send_buffer_partition_id = send_buffer_partition_id
# Store the buffering details
self._reserve_reverse_ip_tag = reserve_reverse_ip_tag
# Store recording parameters
self._is_recording = False
# Keep the vertices for resuming runs
self._machine_vertices = list()
@property
@overrides(ApplicationVertex.n_atoms)
def n_atoms(self):
return self._n_atoms
[docs] @overrides(ApplicationVertex.get_resources_used_by_atoms)
def get_resources_used_by_atoms(self, vertex_slice):
send_buffer_times = self._send_buffer_times
if send_buffer_times is not None and len(send_buffer_times):
if hasattr(send_buffer_times[0], "__len__"):
send_buffer_times = send_buffer_times[
vertex_slice.lo_atom:vertex_slice.hi_atom + 1]
sim = globals_variables.get_simulator()
container = ResourceContainer(
sdram=ReverseIPTagMulticastSourceMachineVertex.get_sdram_usage(
send_buffer_times, self._is_recording, sim.machine_time_step,
self._receive_rate, self._n_atoms),
dtcm=DTCMResource(
ReverseIPTagMulticastSourceMachineVertex.get_dtcm_usage()),
cpu_cycles=CPUCyclesPerTickResource(
ReverseIPTagMulticastSourceMachineVertex.get_cpu_usage()),
reverse_iptags=self._reverse_iptags)
return container
@property
def send_buffer_times(self):
return self._send_buffer_times
@send_buffer_times.setter
def send_buffer_times(self, send_buffer_times):
self._send_buffer_times = send_buffer_times
for (vertex_slice, vertex) in self._machine_vertices:
send_buffer_times_to_set = self._send_buffer_times
# pylint: disable=len-as-condition
if (self._send_buffer_times is not None and
len(self._send_buffer_times)):
if hasattr(self._send_buffer_times[0], "__len__"):
send_buffer_times_to_set = self._send_buffer_times[
vertex_slice.lo_atom:vertex_slice.hi_atom + 1]
vertex.send_buffer_times = send_buffer_times_to_set
[docs] def enable_recording(self, new_state=True):
self._is_recording = new_state
[docs] @overrides(AbstractProvidesOutgoingPartitionConstraints.
get_outgoing_partition_constraints)
def get_outgoing_partition_constraints(self, partition):
return partition.pre_vertex.get_outgoing_partition_constraints(
partition)
[docs] @overrides(AbstractHasAssociatedBinary.get_binary_file_name)
def get_binary_file_name(self):
return 'reverse_iptag_multicast_source.aplx'
[docs] @overrides(AbstractHasAssociatedBinary.get_binary_start_type)
def get_binary_start_type(self):
return ExecutableType.USES_SIMULATION_INTERFACE
[docs] def generate_data_specification(self, spec, placement):
placement.vertex.generate_data_specification(spec, placement)
[docs] @overrides(ApplicationVertex.create_machine_vertex)
def create_machine_vertex(
self, vertex_slice,
resources_required, # @UnusedVariable
label=None, constraints=None):
send_buffer_times = self._send_buffer_times
if send_buffer_times is not None and len(send_buffer_times):
if hasattr(send_buffer_times[0], "__len__"):
send_buffer_times = send_buffer_times[
vertex_slice.lo_atom:vertex_slice.hi_atom + 1]
vertex = ReverseIPTagMulticastSourceMachineVertex(
n_keys=vertex_slice.n_atoms,
label=label, constraints=constraints,
board_address=self._board_address,
receive_port=self._receive_port,
receive_sdp_port=self._receive_sdp_port,
receive_tag=self._receive_tag,
receive_rate=self._receive_rate,
virtual_key=self._virtual_key, prefix=self._prefix,
prefix_type=self._prefix_type, check_keys=self._check_keys,
send_buffer_times=send_buffer_times,
send_buffer_partition_id=self._send_buffer_partition_id,
reserve_reverse_ip_tag=self._reserve_reverse_ip_tag)
vertex.enable_recording(self._is_recording)
self._machine_vertices.append((vertex_slice, vertex))
return vertex
def __repr__(self):
return self._label