Source code for spinnman.processes.most_direct_connection_selector
from .abstract_multi_connection_process_connection_selector \
import AbstractMultiConnectionProcessConnectionSelector
[docs]class MostDirectConnectionSelector(
AbstractMultiConnectionProcessConnectionSelector):
"""
MostDirectConnectionSelector: selector that goes for the most direct \
connection for the message
"""
def __init__(self, machine, connections):
AbstractMultiConnectionProcessConnectionSelector.__init__(
self, connections)
self._machine = machine
self._connections = dict()
self._first_connection = None
for connection in connections:
if connection.chip_x == 0 and connection.chip_y == 0:
self._first_connection = connection
self._connections[
(connection.chip_x, connection.chip_y)] = connection
if self._first_connection is None:
self._first_connection = next(iter(connections))
[docs] def set_machine(self, new_machine):
self._machine = new_machine
[docs] def get_next_connection(self, message):
if self._machine is None or len(self._connections) == 1:
return self._first_connection
chip = self._machine.get_chip_at(
message.sdp_header.destination_chip_x,
message.sdp_header.destination_chip_y)
key = (chip.nearest_ethernet_x, chip.nearest_ethernet_y)
if key not in self._connections:
return self._first_connection
return self._connections[key]