simple-timing-mp-ruby.py revision 6928
1# Copyright (c) 2006-2007 The Regents of The University of Michigan 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright 9# notice, this list of conditions and the following disclaimer in the 10# documentation and/or other materials provided with the distribution; 11# neither the name of the copyright holders nor the names of its 12# contributors may be used to endorse or promote products derived from 13# this software without specific prior written permission. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26# 27# Authors: Ron Dreslinski 28 29import m5 30from m5.objects import * 31from m5.defines import buildEnv 32from m5.util import addToPath 33import os, optparse, sys 34 35if buildEnv['FULL_SYSTEM']: 36 panic("This script requires system-emulation mode (*_SE).") 37 38# Get paths we might need 39config_path = os.path.dirname(os.path.abspath(__file__)) 40config_root = os.path.dirname(config_path) 41m5_root = os.path.dirname(config_root) 42addToPath(config_root+'/configs/common') 43addToPath(config_root+'/configs/ruby') 44 45import Ruby 46 47parser = optparse.OptionParser() 48 49# 50# Set the default cache size and associativity to be very small to encourage 51# races between requests and writebacks. 52# 53parser.add_option("--l1d_size", type="string", default="256B") 54parser.add_option("--l1i_size", type="string", default="256B") 55parser.add_option("--l2_size", type="string", default="512B") 56parser.add_option("--l1d_assoc", type="int", default=2) 57parser.add_option("--l1i_assoc", type="int", default=2) 58parser.add_option("--l2_assoc", type="int", default=2) 59 60execfile(os.path.join(config_root, "configs/common", "Options.py")) 61 62(options, args) = parser.parse_args() 63 64nb_cores = 4 65cpus = [ TimingSimpleCPU(cpu_id=i) for i in xrange(nb_cores) ] 66 67# overwrite the num_cpus to equal nb_cores 68options.num_cpus = nb_cores 69 70# system simulated 71system = System(cpu = cpus, 72 physmem = PhysicalMemory()) 73 74system.ruby = Ruby.create_system(options, system.physmem) 75 76assert(options.num_cpus == len(system.ruby.cpu_ruby_ports)) 77 78for (i, cpu) in enumerate(system.cpu): 79 # 80 # Tie the cpu ports to the ruby cpu ports 81 # 82 cpu.icache_port = system.ruby.cpu_ruby_ports[i].port 83 cpu.dcache_port = system.ruby.cpu_ruby_ports[i].port 84 85# ----------------------- 86# run simulation 87# ----------------------- 88 89root = Root( system = system ) 90root.system.mem_mode = 'timing' 91 92# Not much point in this being higher than the L1 latency 93m5.ticks.setGlobalFrequency('1ns') 94