Source code for pacman.model.graphs.application.fpga_connection
# Copyright (c) 2021 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 typing import NamedTuple
#: The range of FPGA ids
FPGA_IDS = range(0, 3)
#: The range of FPGA link ids
FPGA_LINK_IDS = range(0, 16)
[docs]class FPGAConnection(NamedTuple):
"""
A connection from or to an FPGA.
"""
#: The ID of the FPGA on the board (0, 1 or 2), or None for all of them
fpga_id: int
#: The ID of the link of the FPGA (0-15), or None for all of them
fpga_link_id: int
#: The IP address of the board with the FPGA, or None for the default board
#: or if using chip_coords
board_address: str
#: The coordinates of the chip connected to the FPGA, or None for the
#: default board or if using board_address
chip_coords: tuple
@property
def is_concrete(self):
"""
Whether the connection has the FPGA id and link id set.
:rtype: bool
"""
return self.fpga_id is not None and self.fpga_link_id is not None
@property
def expanded(self):
"""
Get a list of concrete FPGA connections,
where fpga_id and fpga_link_id are not `None`.
:rtype: iter(FPGAConnection)
"""
ids = [self.fpga_id] if self.fpga_id is not None else FPGA_IDS
links = ([self.fpga_link_id] if self.fpga_link_id is not None
else FPGA_LINK_IDS)
for i in ids:
for lnk in links:
yield FPGAConnection(
i, lnk, self.board_address, self.chip_coords)