gem5/configs/example/se.py

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# Authors: Steve Reinhardt

# Simple test script
#
# "m5 test.py"

import optparse
import sys

import m5
from m5.defines import buildEnv
from m5.objects import *
from m5.util import addToPath, fatal

addToPath('../common')
addToPath('../ruby')

import Options
import Ruby
import Simulation
import CacheConfig
from Caches import *
from cpu2000 import *

parser = optparse.OptionParser()
Options.addCommonOptions(parser)
Options.addSEOptions(parser)

if '--ruby' in sys.argv:
    Ruby.define_options(parser)

(options, args) = parser.parse_args()

if args:
    print "Error: script doesn't take any positional arguments"
    sys.exit(1)

multiprocesses = []
apps = []

if options.bench:
    apps = options.bench.split("-")
    if len(apps) != options.num_cpus:
        print "number of benchmarks not equal to set num_cpus!"
        sys.exit(1)

    for app in apps:
        try:
            if buildEnv['TARGET_ISA'] == 'alpha':
                exec("workload = %s('alpha', 'tru64', 'ref')" % app)
            else:
                exec("workload = %s(buildEnv['TARGET_ISA'], 'linux', 'ref')" % app)
            multiprocesses.append(workload.makeLiveProcess())
        except:
            print >>sys.stderr, "Unable to find workload for %s: %s" % (buildEnv['TARGET_ISA'], app)
            sys.exit(1)
elif options.cmd:
    process = LiveProcess()
    process.executable = options.cmd
    process.cmd = [options.cmd] + options.options.split()
    multiprocesses.append(process)
else:
    print >> sys.stderr, "No workload specified. Exiting!\n"
    sys.exit(1)


if options.input != "":
    process.input = options.input
if options.output != "":
    process.output = options.output
if options.errout != "":
    process.errout = options.errout


# By default, set workload to path of user-specified binary
workloads = options.cmd
numThreads = 1

if options.cpu_type == "detailed" or options.cpu_type == "inorder":
    #check for SMT workload
    workloads = options.cmd.split(';')
    if len(workloads) > 1:
        process = []
        smt_idx = 0
        inputs = []
        outputs = []
        errouts = []

        if options.input != "":
            inputs = options.input.split(';')
        if options.output != "":
            outputs = options.output.split(';')
        if options.errout != "":
            errouts = options.errout.split(';')

        for wrkld in workloads:
            smt_process = LiveProcess()
            smt_process.executable = wrkld
            smt_process.cmd = wrkld + " " + options.options
            if inputs and inputs[smt_idx]:
                smt_process.input = inputs[smt_idx]
            if outputs and outputs[smt_idx]:
                smt_process.output = outputs[smt_idx]
            if errouts and errouts[smt_idx]:
                smt_process.errout = errouts[smt_idx]
            process += [smt_process, ]
            smt_idx += 1
    numThreads = len(workloads)

(CPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)
CPUClass.clock = '2GHz'
CPUClass.numThreads = numThreads;

np = options.num_cpus

system = System(cpu = [CPUClass(cpu_id=i) for i in xrange(np)],
                physmem = SimpleMemory(range=AddrRange("512MB")),
                membus = Bus(), mem_mode = test_mem_mode)

# Sanity check
if options.fastmem and (options.caches or options.l2cache):
    fatal("You cannot use fastmem in combination with caches!")

for i in xrange(np):
    system.cpu[i].workload = multiprocesses[i]

    if options.fastmem:
        system.cpu[0].fastmem = True

    if options.checker:
        system.cpu[i].addCheckerCpu()

if options.ruby:
    if not (options.cpu_type == "detailed" or options.cpu_type == "timing"):
        print >> sys.stderr, "Ruby requires TimingSimpleCPU or O3CPU!!"
        sys.exit(1)

    options.use_map = True
    Ruby.create_system(options, system)
    assert(options.num_cpus == len(system.ruby._cpu_ruby_ports))

    for i in xrange(np):
        ruby_port = system.ruby._cpu_ruby_ports[i]

        # Create the interrupt controller and connect its ports to Ruby
        system.cpu[i].createInterruptController()
        system.cpu[i].interrupts.pio = ruby_port.master
        system.cpu[i].interrupts.int_master = ruby_port.slave
        system.cpu[i].interrupts.int_slave = ruby_port.master

        # Connect the cpu's cache ports to Ruby
        system.cpu[i].icache_port = ruby_port.slave
        system.cpu[i].dcache_port = ruby_port.slave
else:
    system.system_port = system.membus.slave
    system.physmem.port = system.membus.master
    CacheConfig.config_cache(options, system)

root = Root(full_system = False, system = system)
Simulation.run(options, root, system, FutureClass)