Source code for spinn_front_end_common.utility_models.live_packet_gather

# 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 <>.

from spinn_utilities.overrides import overrides
from pacman.model.partitioner_interfaces import LegacyPartitionerAPI
from pacman.model.graphs.application import ApplicationVertex
from pacman.model.resources import (
    ConstantSDRAM, CPUCyclesPerTickResource, DTCMResource, ResourceContainer)
from .live_packet_gather_machine_vertex import LivePacketGatherMachineVertex

[docs]class LivePacketGather(ApplicationVertex, LegacyPartitionerAPI): """ A model which stores all the events it receives during a timer tick\ and then compresses them into Ethernet packets and sends them out of\ a SpiNNaker machine. """ def __init__(self, lpg_params, constraints=None): """ :param LivePacketGatherParameters lpg_params: :param constraints: :type constraints: iterable(~pacman.model.constraints.AbstractConstraint) """ label = lpg_params.label or "Live Packet Gatherer" super().__init__(label, constraints, 1) self._lpg_params = lpg_params
[docs] @overrides(LegacyPartitionerAPI.create_machine_vertex) def create_machine_vertex( self, vertex_slice, resources_required, label=None, constraints=None): machine_vertex = LivePacketGatherMachineVertex( self._lpg_params, constraints, self, label) if vertex_slice: assert (vertex_slice == machine_vertex.vertex_slice) if resources_required: assert (resources_required == machine_vertex.resources_required) return machine_vertex
@property @overrides(LegacyPartitionerAPI.n_atoms) def n_atoms(self): return 1
[docs] @overrides(LegacyPartitionerAPI.get_resources_used_by_atoms) def get_resources_used_by_atoms(self, vertex_slice): # @UnusedVariable return ResourceContainer( sdram=ConstantSDRAM( LivePacketGatherMachineVertex.get_sdram_usage()), dtcm=DTCMResource(LivePacketGatherMachineVertex.get_dtcm_usage()), cpu_cycles=CPUCyclesPerTickResource( LivePacketGatherMachineVertex.get_cpu_usage()), iptags=[self._lpg_params.get_iptag_resource()])