Source code for pacman.model.graphs.common.chip_and_core
# 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.
[docs]class ChipAndCore(object):
"""
A constraint to place a vertex on a specific chip and, optionally, a
specific core on that chip.
"""
__slots__ = [
# the chip x coord in the SpiNNaker machine to which the machine
# vertex is placed
"_x",
# the chip y coord in the SpiNNaker machine to which the machine
# vertex is placed
"_y",
# The processor ID on chip (x,y) that this vertex is placed on within
# the SpiNNaker machine; may be None
"_p",
]
def __init__(self, x, y, p=None):
"""
:param int x: the x-coordinate of the chip
:param int y: the y-coordinate of the chip
:param p: the processor (if any) of the chip
:type p: int or None
"""
self._x = int(x)
self._y = int(y)
self._p = None if p is None else int(p)
@property
def x(self):
"""
The X-coordinate of the chip.
:rtype: int
"""
return self._x
@property
def y(self):
"""
The Y-coordinate of the chip.
:rtype: int
"""
return self._y
@property
def p(self):
"""
The processor on the chip, or `None` if that is not constrained.
:rtype: int or None
"""
return self._p
def __repr__(self):
if self._p is None:
return f"X:{self._x},Y{self._y}"
else:
return f"X:{self._x},Y:{self._y},P:{self._p}"
def __eq__(self, other):
if not isinstance(other, ChipAndCore):
return False
return (self._x, self._y, self._p) == (other.x, other.y, other.p)
def __ne__(self, other):
return not self.__eq__(other)
def __hash__(self):
return hash((self._x, self._y, self._p))