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# 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.
#
# Author: Tushar Krishna
from __future__ import print_function
from __future__ import absolute_import
import m5
from m5.objects import *
from m5.defines import buildEnv
from m5.util import addToPath
import os, optparse, sys
addToPath('../')
from common import Options
from ruby import Ruby
# Get paths we might need. It's expected this file is in m5/configs/example.
config_path = os.path.dirname(os.path.abspath(__file__))
config_root = os.path.dirname(config_path)
m5_root = os.path.dirname(config_root)
parser = optparse.OptionParser()
Options.addNoISAOptions(parser)
parser.add_option("--synthetic", type="choice", default="uniform_random",
choices=['uniform_random', 'tornado', 'bit_complement', \
'bit_reverse', 'bit_rotation', 'neighbor', \
'shuffle', 'transpose'])
parser.add_option("-i", "--injectionrate", type="float", default=0.1,
metavar="I",
help="Injection rate in packets per cycle per node. \
Takes decimal value between 0 to 1 (eg. 0.225). \
Number of digits after 0 depends upon --precision.")
parser.add_option("--precision", type="int", default=3,
help="Number of digits of precision after decimal point\
for injection rate")
parser.add_option("--sim-cycles", type="int", default=1000,
help="Number of simulation cycles")
parser.add_option("--num-packets-max", type="int", default=-1,
help="Stop injecting after --num-packets-max.\
Set to -1 to disable.")
parser.add_option("--single-sender-id", type="int", default=-1,
help="Only inject from this sender.\
Set to -1 to disable.")
parser.add_option("--single-dest-id", type="int", default=-1,
help="Only send to this destination.\
Set to -1 to disable.")
parser.add_option("--inj-vnet", type="int", default=-1,
help="Only inject in this vnet (0, 1 or 2).\
0 and 1 are 1-flit, 2 is 5-flit.\
Set to -1 to inject randomly in all vnets.")
#
# Add the ruby specific and protocol specific options
#
Ruby.define_options(parser)
(options, args) = parser.parse_args()
if args:
print("Error: script doesn't take any positional arguments")
sys.exit(1)
if options.inj_vnet > 2:
print("Error: Injection vnet %d should be 0 (1-flit), 1 (1-flit) "
"or 2 (5-flit) or -1 (random)" % (options.inj_vnet))
sys.exit(1)
cpus = [ GarnetSyntheticTraffic(
num_packets_max=options.num_packets_max,
single_sender=options.single_sender_id,
single_dest=options.single_dest_id,
sim_cycles=options.sim_cycles,
traffic_type=options.synthetic,
inj_rate=options.injectionrate,
inj_vnet=options.inj_vnet,
precision=options.precision,
num_dest=options.num_dirs) \
for i in range(options.num_cpus) ]
# create the desired simulated system
system = System(cpu = cpus, mem_ranges = [AddrRange(options.mem_size)])
# Create a top-level voltage domain and clock domain
system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
system.clk_domain = SrcClockDomain(clock = options.sys_clock,
voltage_domain = system.voltage_domain)
Ruby.create_system(options, False, system)
# Create a seperate clock domain for Ruby
system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
voltage_domain = system.voltage_domain)
i = 0
for ruby_port in system.ruby._cpu_ports:
#
# Tie the cpu test ports to the ruby cpu port
#
cpus[i].test = ruby_port.slave
i += 1
# -----------------------
# run simulation
# -----------------------
root = Root(full_system = False, system = system)
root.system.mem_mode = 'timing'
# Not much point in this being higher than the L1 latency
m5.ticks.setGlobalFrequency('1ns')
# instantiate configuration
m5.instantiate()
# simulate until program terminates
exit_event = m5.simulate(options.abs_max_tick)
print('Exiting @ tick', m5.curTick(), 'because', exit_event.getCause())
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