Source code for spinn_front_end_common.utilities.utility_objs.extra_monitor_scp_processes.set_router_timeout_process
# Copyright (c) 2017 The University of Manchester
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from spinnman.processes import AbstractMultiConnectionProcess
from spinn_front_end_common.utilities.utility_objs.extra_monitor_scp_messages\
import (
SetRouterTimeoutMessage)
[docs]class SetRouterTimeoutProcess(AbstractMultiConnectionProcess):
"""
How to send messages to set router timeouts. These messages need to be
sent to cores running the extra monitor binary.
.. note::
SCAMP sets wait2 to zero by default!
.. note::
Timeouts are specified in a weird floating point format.
See the SpiNNaker datasheet for details.
"""
[docs] def set_wait1_timeout(self, mantissa, exponent, core_subsets):
"""
The wait1 timeout is the time from when a packet is received to
when emergency routing becomes enabled.
:param int mantissa: Timeout mantissa (0 to 15)
:param int exponent: Timeout exponent (0 to 15)
:param ~spinn_machine.CoreSubsets core_subsets:
Where the extra monitors that manage the routers are located.
"""
for core_subset in core_subsets.core_subsets:
for processor_id in core_subset.processor_ids:
self._set_timeout(
core_subset, processor_id, mantissa, exponent, wait=1)
[docs] def set_wait2_timeout(self, mantissa, exponent, core_subsets):
"""
The wait2 timeout is the time from when a packet has emergency
routing enabled for it to when it is dropped.
:param int mantissa: Timeout mantissa (0 to 15)
:param int exponent: Timeout exponent (0 to 15)
:param ~spinn_machine.CoreSubsets core_subsets:
Where the extra monitors that manage the routers are located.
"""
for core_subset in core_subsets.core_subsets:
for processor_id in core_subset.processor_ids:
self._set_timeout(
core_subset, processor_id, mantissa, exponent, wait=2)
def _set_timeout(self, core, processor_id, mantissa, exponent, wait):
"""
Set a timeout for a router controlled by an extra monitor on a core.
This is not a parallelised operation in order to aid debugging when
it fails.
:param ~spinn_machine.CoreSubset core:
:param int processor_id:
:param int mantissa:
:param int exponent:
:param int wait:
"""
self._send_request(SetRouterTimeoutMessage(
core.x, core.y, processor_id,
timeout_mantissa=mantissa, timeout_exponent=exponent, wait=wait))
self._finish()
self.check_for_error()