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# Copyright (c) 2015 The University of Illinois Urbana Champaign
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# This is an example of an n port network switch to work in dist-gem5.
# Users can extend this to have different different topologies
import argparse
import sys
import m5
from m5.defines import buildEnv
from m5.objects import *
from m5.util import addToPath, fatal
addToPath("../")
from common import Simulation
from common import Options
def build_switch(args):
# instantiate an EtherSwitch
switch = EtherSwitch()
# instantiate distEtherLinks to connect switch ports
# to other gem5 instances
switch.portlink = [
DistEtherLink(
speed=args.ethernet_linkspeed,
delay=args.ethernet_linkdelay,
dist_rank=args.dist_rank,
dist_size=args.dist_size,
server_name=args.dist_server_name,
server_port=args.dist_server_port,
sync_start=args.dist_sync_start,
sync_repeat=args.dist_sync_repeat,
is_switch=True,
num_nodes=args.dist_size,
)
for i in range(args.dist_size)
]
for (i, link) in enumerate(switch.portlink):
link.int0 = switch.interface[i]
return switch
def main():
# Add options
parser = argparse.ArgumentParser()
Options.addCommonOptions(parser)
Options.addFSOptions(parser)
args = parser.parse_args()
system = build_switch(args)
root = Root(full_system=True, system=system)
Simulation.run(args, root, None, None)
if __name__ == "__m5_main__":
main()