fs.py

来自「M5,一个功能强大的多处理器系统模拟器.很多针对处理器架构,性能的研究都使用它作」· Python 代码 · 共 140 行

import optparse, os, sys

import m5
from m5.objects import *
m5.AddToPath('../common')
from FSConfig import *
from SysPaths import *
from Benchmarks import *
import Simulation
from Caches import *

if not m5.build_env['FULL_SYSTEM']:
    m5.panic("This script requires full-system mode (ALPHA_FS).")

# 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)

parser = optparse.OptionParser()

# System options
parser.add_option("--kernel", action="store", type="string")
parser.add_option("--script", action="store", type="string")

# Benchmark options
parser.add_option("--dual", action="store_true",
                  help="Simulate two systems attached with an ethernet link")
parser.add_option("-b", "--benchmark", action="store", type="string",
                  dest="benchmark",
                  help="Specify the benchmark to run. Available benchmarks: %s"\
                  % DefinedBenchmarks)

# Metafile options
parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
                  help="Specify the filename to dump a pcap capture of the" \
                  "ethernet traffic")

execfile(os.path.join(config_root, "common", "Options.py"))

(options, args) = parser.parse_args()

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

# driver system CPU is always simple... note this is an assignment of
# a class, not an instance.
DriveCPUClass = AtomicSimpleCPU
drive_mem_mode = 'atomic'

# system under test can be any CPU
(TestCPUClass, test_mem_mode, FutureClass) = Simulation.setCPUClass(options)

TestCPUClass.clock = '2GHz'
DriveCPUClass.clock = '2GHz'

if options.benchmark:
    try:
        bm = Benchmarks[options.benchmark]
    except KeyError:
        print "Error benchmark %s has not been defined." % options.benchmark
        print "Valid benchmarks are: %s" % DefinedBenchmarks
        sys.exit(1)
else:
    if options.dual:
        bm = [SysConfig(), SysConfig()]
    else:
        bm = [SysConfig()]

if m5.build_env['TARGET_ISA'] == "alpha":
    test_sys = makeLinuxAlphaSystem(test_mem_mode, bm[0])
elif m5.build_env['TARGET_ISA'] == "mips":
    test_sys = makeLinuxMipsSystem(test_mem_mode, bm[0])
elif m5.build_env['TARGET_ISA'] == "sparc":
    test_sys = makeSparcSystem(test_mem_mode, bm[0])
else:
    m5.panic("incapable of building non-alpha or non-sparc full system!")

if options.kernel is not None:
    test_sys.kernel = binary(options.kernel)

if options.script is not None:
    test_sys.readfile = options.script

np = options.num_cpus

if options.l2cache:
    test_sys.l2 = L2Cache(size = '2MB')
    test_sys.tol2bus = Bus()
    test_sys.l2.cpu_side = test_sys.tol2bus.port
    test_sys.l2.mem_side = test_sys.membus.port

test_sys.cpu = [TestCPUClass(cpu_id=i) for i in xrange(np)]

if options.caches:
    test_sys.bridge.filter_ranges_a=[AddrRange(0, Addr.max)]
    test_sys.bridge.filter_ranges_b=[AddrRange(0, size='8GB')]
    test_sys.iocache = IOCache(mem_side_filter_ranges=[AddrRange(0, Addr.max)],
                       cpu_side_filter_ranges=[AddrRange(0x8000000000, Addr.max)])
    test_sys.iocache.cpu_side = test_sys.iobus.port
    test_sys.iocache.mem_side = test_sys.membus.port

for i in xrange(np):
    if options.caches:
        test_sys.cpu[i].addPrivateSplitL1Caches(L1Cache(size = '32kB'),
                                                L1Cache(size = '64kB'))
    if options.l2cache:
        test_sys.cpu[i].connectMemPorts(test_sys.tol2bus)
    else:
        test_sys.cpu[i].connectMemPorts(test_sys.membus)

    if options.fastmem:
        test_sys.cpu[i].physmem_port = test_sys.physmem.port

if m5.build_env['TARGET_ISA'] == 'mips':
    setMipsOptions(TestCPUClass)

if len(bm) == 2:
    if m5.build_env['TARGET_ISA'] == 'alpha':
        drive_sys = makeLinuxAlphaSystem(drive_mem_mode, bm[1])
    elif m5.build_env['TARGET_ISA'] == 'mips':
        drive_sys = makeLinuxMipsSystem(drive_mem_mode, bm[1])
    elif m5.build_env['TARGET_ISA'] == 'sparc':
        drive_sys = makeSparcSystem(drive_mem_mode, bm[1])
    drive_sys.cpu = DriveCPUClass(cpu_id=0)
    drive_sys.cpu.connectMemPorts(drive_sys.membus)
    if options.fastmem:
        drive_sys.cpu.physmem_port = drive_sys.physmem.port
    if options.kernel is not None:
        drive_sys.kernel = binary(options.kernel)

    root = makeDualRoot(test_sys, drive_sys, options.etherdump)
elif len(bm) == 1:
    root = Root(system=test_sys)
else:
    print "Error I don't know how to create more than 2 systems."
    sys.exit(1)

Simulation.run(options, root, test_sys, FutureClass)