Source code for pacman.model.graphs.abstract_multiple_partition

# Copyright (c) 2019-2020 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 collections import OrderedDict
from spinn_utilities.default_ordered_dict import DefaultOrderedDict
from spinn_utilities.ordered_set import OrderedSet
from spinn_utilities.overrides import overrides
from pacman.exceptions import PacmanConfigurationException
from pacman.model.graphs import AbstractEdgePartition

[docs]class AbstractMultiplePartition(AbstractEdgePartition): """ An edge partition that has multiple source vertices. """ __slots__ = [ # the vertices which send through this partition. "_pre_vertices", # the destinations of this outgoing partition. "_destinations" ] def __init__( self, pre_vertices, identifier, allowed_edge_types, constraints, label, traffic_weight, class_name): super().__init__( identifier=identifier, allowed_edge_types=allowed_edge_types, constraints=constraints, label=label, traffic_weight=traffic_weight, class_name=class_name) self._pre_vertices = OrderedDict() self._destinations = DefaultOrderedDict(OrderedSet) # hard code dict of lists so that only these are acceptable. for pre_vertex in pre_vertices: self._pre_vertices[pre_vertex] = OrderedSet() # handle clones if len(self._pre_vertices.keys()) != len(pre_vertices): raise PacmanConfigurationException( "There were clones in your list of acceptable pre vertices")
[docs] @overrides(AbstractEdgePartition.add_edge) def add_edge(self, edge, graph_code): # safety checks if edge.pre_vertex not in self._pre_vertices.keys(): raise Exception( "The edge {} is not allowed in this outgoing partition".format( edge)) # update self._pre_vertices[edge.pre_vertex].add(edge) self._destinations[edge.post_vertex].add(edge) super().add_edge(edge, graph_code)
@property @overrides(AbstractEdgePartition.pre_vertices) def pre_vertices(self): return self._pre_vertices.keys()