From 003c08fa90f8b3eb7fbbbc96e0caa5f46bf58196 Mon Sep 17 00:00:00 2001 From: Tushar Krishna Date: Thu, 6 Oct 2016 14:35:18 -0400 Subject: config: make internal links in network topology unidirectional. This patch makes the internal links within the network topology unidirectional, thus allowing any deadlock-free routing algorithms to be specified from the topology itself using weights. This patch also renames Mesh.py and MeshDirCorners.py to Mesh_XY.py and MeshDirCorners_XY.py (Mesh with XY routing). It also adds a Mesh_westfirst.py and CrossbarGarnet.py topologies. --- configs/topologies/CrossbarGarnet.py | 50 ++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 configs/topologies/CrossbarGarnet.py (limited to 'configs/topologies/CrossbarGarnet.py') diff --git a/configs/topologies/CrossbarGarnet.py b/configs/topologies/CrossbarGarnet.py new file mode 100644 index 000000000..64f8001e2 --- /dev/null +++ b/configs/topologies/CrossbarGarnet.py @@ -0,0 +1,50 @@ +# Copyright (c) 2016 Georgia Institute of Technology +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer; +# redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution; +# neither the name of the copyright holders nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Authors: Tushar Krishna + +from m5.params import * +from m5.objects import * + +from BaseTopology import SimpleTopology + +class CrossbarGarnet(SimpleTopology): + description='CrossbarGarnet' + + def makeTopology(self, options, network, IntLink, ExtLink, Router): + # Create one router in Garnet. Internally models a crossbar and + # the associated allocator. + # For simple network, use Crossbar.py + + xbar = Router(router_id=0) + network.routers = xbar + + ext_links = [ExtLink(link_id=i, ext_node=n, int_node=xbar) + for (i, n) in enumerate(self.nodes)] + network.ext_links = ext_links + + int_links = [] + network.int_links = int_links -- cgit v1.2.3