configs/topologies/CrossbarGarnet.py

# Copyright (c) 2016 Georgia Institute of Technology
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# Authors: Tushar Krishna

from __future__ import print_function
from __future__ import absolute_import

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