Python CpuConfig类代码示例

def _listCpuTypes(option, opt, value, parser):
    CpuConfig.print_cpu_list()
    sys.exit(0)

def addCommonOptions(parser):
    # system options
    parser.add_option("--list-cpu-types",
                      action="callback", callback=_listCpuTypes,
                      help="List available CPU types")
    parser.add_option("--cpu-type", type="choice", default="atomic",
                      choices=CpuConfig.cpu_names(),
                      help = "type of cpu to run with")
    parser.add_option("--checker", action="store_true");
    parser.add_option("-n", "--num-cpus", type="int", default=1)
    parser.add_option("--sys-voltage", action="store", type="string",
                      default='1.0V',
                      help = """Top-level voltage for blocks running at system
                      power supply""")
    parser.add_option("--sys-clock", action="store", type="string",
                      default='1GHz',
                      help = """Top-level clock for blocks running at system
                      speed""")
    parser.add_option("--cpu-clock", action="store", type="string",
                      default='2GHz',
                      help="Clock for blocks running at CPU speed")
    parser.add_option("--smt", action="store_true", default=False,
                      help = """
                      Only used if multiple programs are specified. If true,
                      then the number of threads per cpu is same as the
                      number of programs.""")

    # Memory Options
    parser.add_option("--list-mem-types",
                      action="callback", callback=_listMemTypes,
                      help="List available memory types")
    parser.add_option("--mem-type", type="choice", default="DDR3_1600_x64",
                      choices=MemConfig.mem_names(),
                      help = "type of memory to use")
    parser.add_option("--mem-channels", type="int", default=1,
                      help = "number of memory channels")
    parser.add_option("--mem-ranks", type="int", default=None,
                      help = "number of memory ranks per channel")
    parser.add_option("--mem-size", action="store", type="string",
                      default="512MB",
                      help="Specify the physical memory size (single memory)")

    parser.add_option("-l", "--lpae", action="store_true")
    parser.add_option("-V", "--virtualisation", action="store_true")

    parser.add_option("--memchecker", action="store_true")

    # Cache Options
    parser.add_option("--external-memory-system", type="string",
                      help="use external ports of this port_type for caches")
    parser.add_option("--tlm-memory", type="string",
                      help="use external port for SystemC TLM cosimulation")
    parser.add_option("--caches", action="store_true")
    parser.add_option("--l2cache", action="store_true")
    parser.add_option("--fastmem", action="store_true")
    parser.add_option("--num-dirs", type="int", default=1)
    parser.add_option("--num-l2caches", type="int", default=1)
    parser.add_option("--num-l3caches", type="int", default=1)
    parser.add_option("--l1d_size", type="string", default="64kB")
    parser.add_option("--l1i_size", type="string", default="32kB")
    parser.add_option("--l2_size", type="string", default="2MB")
    parser.add_option("--l3_size", type="string", default="16MB")
    parser.add_option("--l1d_assoc", type="int", default=2)
    parser.add_option("--l1i_assoc", type="int", default=2)
    parser.add_option("--l2_assoc", type="int", default=8)
    parser.add_option("--l3_assoc", type="int", default=16)
    parser.add_option("--l2_tags", type="string", default="LRU")
    parser.add_option("--cacheline_size", type="int", default=64)

    # Enable Ruby
    parser.add_option("--ruby", action="store_true")

    # Run duration options
    parser.add_option("-m", "--abs-max-tick", type="int", default=m5.MaxTick,
                      metavar="TICKS", help="Run to absolute simulated tick " \
                      "specified including ticks from a restored checkpoint")
    parser.add_option("--rel-max-tick", type="int", default=None,
                      metavar="TICKS", help="Simulate for specified number of" \
                      " ticks relative to the simulation start tick (e.g. if " \
                      "restoring a checkpoint)")
    parser.add_option("--maxtime", type="float", default=None,
                      help="Run to the specified absolute simulated time in " \
                      "seconds")
    parser.add_option("-I", "--maxinsts", action="store", type="int",
                      default=None, help="""Total number of instructions to
                                            simulate (default: run forever)""")
    parser.add_option("--work-item-id", action="store", type="int",
                      help="the specific work id for exit & checkpointing")
    parser.add_option("--num-work-ids", action="store", type="int",
                      help="Number of distinct work item types")
    parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
                      help="exit when work starts on the specified cpu")
    parser.add_option("--work-end-exit-count", action="store", type="int",
                      help="exit at specified work end count")
    parser.add_option("--work-begin-exit-count", action="store", type="int",
                      help="exit at specified work begin count")
    parser.add_option("--init-param", action="store", type="int", default=0,
                      help="""Parameter available in simulation with m5
                              initparam""")
    parser.add_option("--initialize-only", action="store_true", default=False,
#.........这里部分代码省略.........

def run(options, root, testsys, cpu_class):
    if options.checkpoint_dir:
        cptdir = options.checkpoint_dir
    elif m5.options.outdir:
        cptdir = m5.options.outdir
    else:
        cptdir = getcwd()

    if options.fast_forward and options.checkpoint_restore != None:
        fatal("Can't specify both --fast-forward and --checkpoint-restore")

    if options.standard_switch and not options.caches:
        fatal("Must specify --caches when using --standard-switch")

    if options.standard_switch and options.repeat_switch:
        fatal("Can't specify both --standard-switch and --repeat-switch")

    if options.repeat_switch and options.take_checkpoints:
        fatal("Can't specify both --repeat-switch and --take-checkpoints")

    np = options.num_cpus
    switch_cpus = None

    if options.prog_interval:
        for i in xrange(np):
            testsys.cpu[i].progress_interval = options.prog_interval

    if options.maxinsts:
        for i in xrange(np):
            testsys.cpu[i].max_insts_any_thread = options.maxinsts

    if cpu_class:
        switch_cpus = [cpu_class(switched_out=True, cpu_id=(i))
                       for i in xrange(np)]

        for i in xrange(np):
            if options.fast_forward:
                testsys.cpu[i].max_insts_any_thread = int(options.fast_forward)
            switch_cpus[i].system = testsys
            switch_cpus[i].workload = testsys.cpu[i].workload
            switch_cpus[i].clk_domain = testsys.cpu[i].clk_domain
            switch_cpus[i].progress_interval = \
                testsys.cpu[i].progress_interval
            # simulation period
            if options.maxinsts:
                switch_cpus[i].max_insts_any_thread = options.maxinsts
            # Add checker cpu if selected
            if options.checker:
                switch_cpus[i].addCheckerCpu()

        # If elastic tracing is enabled attach the elastic trace probe
        # to the switch CPUs
        if options.elastic_trace_en:
            CpuConfig.config_etrace(cpu_class, switch_cpus, options)

        testsys.switch_cpus = switch_cpus
        switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)]

    if options.repeat_switch:
        switch_class = getCPUClass(options.cpu_type)[0]
        if switch_class.require_caches() and \
                not options.caches:
            print "%s: Must be used with caches" % str(switch_class)
            sys.exit(1)
        if not switch_class.support_take_over():
            print "%s: CPU switching not supported" % str(switch_class)
            sys.exit(1)

        repeat_switch_cpus = [switch_class(switched_out=True, \
                                               cpu_id=(i)) for i in xrange(np)]

        for i in xrange(np):
            repeat_switch_cpus[i].system = testsys
            repeat_switch_cpus[i].workload = testsys.cpu[i].workload
            repeat_switch_cpus[i].clk_domain = testsys.cpu[i].clk_domain

            if options.maxinsts:
                repeat_switch_cpus[i].max_insts_any_thread = options.maxinsts

            if options.checker:
                repeat_switch_cpus[i].addCheckerCpu()

        testsys.repeat_switch_cpus = repeat_switch_cpus

        if cpu_class:
            repeat_switch_cpu_list = [(switch_cpus[i], repeat_switch_cpus[i])
                                      for i in xrange(np)]
        else:
            repeat_switch_cpu_list = [(testsys.cpu[i], repeat_switch_cpus[i])
                                      for i in xrange(np)]

    if options.standard_switch:
        switch_cpus = [TimingSimpleCPU(switched_out=True, cpu_id=(i))
                       for i in xrange(np)]
        if options.switch_minor:
            print "Standard switch to Minor CPU after warmup."
            switch_cpus_1 = [MinorCPU(switched_out=True, cpu_id=(i))
                             for i in xrange(np)]
        else:
            print "Standard switch to O3 CPU after warmup."
#.........这里部分代码省略.........

def getCPUClass(cpu_type):
    """Returns the required cpu class and the mode of operation."""
    cls = CpuConfig.get(cpu_type)
    return cls, cls.memory_mode()

def addCommonOptions(parser):
    # system options
    parser.add_option("--list-cpu-types",
                      action="callback", callback=_listCpuTypes,
                      help="List available CPU types")
    parser.add_option("--cpu-type", type="choice", default="atomic",
                      choices=CpuConfig.cpu_names(),
                      help = "type of cpu to run with")
    parser.add_option("--checker", action="store_true");
    parser.add_option("-n", "--num-cpus", type="int", default=1)
    parser.add_option("--activate_mcpat", action="store_true")
    parser.add_option("--mcpat_arch_file", action="store",type="string")
    parser.add_option("--caches", action="store_true")
    parser.add_option("--l2cache", action="store_true")
    parser.add_option("--fastmem", action="store_true")
    parser.add_option("--clock", action="store", type="string", default='2GHz')
    parser.add_option("--num-dirs", type="int", default=1)
    parser.add_option("--num-l2caches", type="int", default=1)
    parser.add_option("--num-l3caches", type="int", default=1)
    parser.add_option("--l1d_size", type="string", default="64kB")
    parser.add_option("--l1i_size", type="string", default="32kB")
    parser.add_option("--l2_size", type="string", default="2MB")
    parser.add_option("--l3_size", type="string", default="16MB")
    parser.add_option("--l1d_assoc", type="int", default=2)
    parser.add_option("--l1i_assoc", type="int", default=2)
    parser.add_option("--l2_assoc", type="int", default=8)
    parser.add_option("--l3_assoc", type="int", default=16)
    parser.add_option("--cacheline_size", type="int", default=64)
    parser.add_option("--ruby", action="store_true")
    parser.add_option("--smt", action="store_true", default=False,
                      help = """
                      Only used if multiple programs are specified. If true,
                      then the number of threads per cpu is same as the
                      number of programs.""")

    # Run duration options
    parser.add_option("-m", "--maxtick", type="int", default=m5.MaxTick,
                      metavar="T", help="Stop after T ticks")
    parser.add_option("--maxtime", type="float")
    parser.add_option("-I", "--maxinsts", action="store", type="int",
                      default=10000000, help="""Total number of instructions to
                                            simulate (default: run forever)""")
    parser.add_option("--work-item-id", action="store", type="int",
                      help="the specific work id for exit & checkpointing")
    parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
                      help="exit when work starts on the specified cpu")
    parser.add_option("--work-end-exit-count", action="store", type="int",
                      help="exit at specified work end count")
    parser.add_option("--work-begin-exit-count", action="store", type="int",
                      help="exit at specified work begin count")
    parser.add_option("--init-param", action="store", type="int", default=0,
                      help="""Parameter available in simulation with m5
                              initparam""")

    # Checkpointing options
    ###Note that performing checkpointing via python script files will override
    ###checkpoint instructions built into binaries.
    parser.add_option("--take-checkpoints", action="store", type="string",
        help="<M,N> take checkpoints at tick M and every N ticks thereafter")
    parser.add_option("--max-checkpoints", action="store", type="int",
        help="the maximum number of checkpoints to drop", default=5)
    parser.add_option("--checkpoint-dir", action="store", type="string",
        help="Place all checkpoints in this absolute directory")
    parser.add_option("-r", "--checkpoint-restore", action="store", type="int",
        help="restore from checkpoint <N>")
    parser.add_option("--checkpoint-at-end", action="store_true",
                      help="take a checkpoint at end of run")
    parser.add_option("--work-begin-checkpoint-count", action="store", type="int",
                      help="checkpoint at specified work begin count")
    parser.add_option("--work-end-checkpoint-count", action="store", type="int",
                      help="checkpoint at specified work end count")
    parser.add_option("--work-cpus-checkpoint-count", action="store", type="int",
                      help="checkpoint and exit when active cpu count is reached")
    parser.add_option("--restore-with-cpu", action="store", type="choice",
                      default="atomic", choices = ["atomic", "timing",
                                                   "detailed", "inorder"],
                      help = "cpu type for restoring from a checkpoint")


    # CPU Switching - default switch model goes from a checkpoint
    # to a timing simple CPU with caches to warm up, then to detailed CPU for
    # data measurement
    parser.add_option("--repeat-switch", action="store", type="int",
        default=None,
        help="switch back and forth between CPUs with period <N>")
    parser.add_option("-s", "--standard-switch", action="store", type="int",
        default=None,
        help="switch from timing to Detailed CPU after warmup period of <N>")
    parser.add_option("-p", "--prog-interval", type="str",
        help="CPU Progress Interval")

    # Fastforwarding and simpoint related materials
    parser.add_option("-W", "--warmup-insts", action="store", type="int",
        default=None,
        help="Warmup period in total instructions (requires --standard-switch)")
    parser.add_option("--bench", action="store", type="string", default=None,
        help="base names for --take-checkpoint and --checkpoint-restore")
    parser.add_option("-F", "--fast-forward", action="store", type="string",
        default=None,
        help="Number of instructions to fast forward before switching")
#.........这里部分代码省略.........

def main():
    parser = argparse.ArgumentParser(
        description="Generic ARM big.LITTLE configuration")

    parser.add_argument("--restore-from", type=str, default=None,
                        help="Restore from checkpoint")
    parser.add_argument("--dtb", type=str, default=default_dtb,
                        help="DTB file to load")
    parser.add_argument("--kernel", type=str, default=default_kernel,
                        help="Linux kernel")
    parser.add_argument("--disk", action="append", type=str, default=[],
                        help="Disks to instantiate")
    parser.add_argument("--bootscript", type=str, default=default_rcs,
                        help="Linux bootscript")
    parser.add_argument("--atomic", action="store_true", default=False,
                        help="Use atomic CPUs")
    parser.add_argument("--kernel-init", type=str, default="/sbin/init",
                        help="Override init")
    parser.add_argument("--big-cpus", type=int, default=1,
                        help="Number of big CPUs to instantiate")
    parser.add_argument("--little-cpus", type=int, default=1,
                        help="Number of little CPUs to instantiate")
    parser.add_argument("--caches", action="store_true", default=False,
                        help="Instantiate caches")
    parser.add_argument("--last-cache-level", type=int, default=2,
                        help="Last level of caches (e.g. 3 for L3)")
    parser.add_argument("--big-cpu-clock", type=str, default="2GHz",
                        help="Big CPU clock frequency")
    parser.add_argument("--little-cpu-clock", type=str, default="1GHz",
                        help="Little CPU clock frequency")

    m5.ticks.fixGlobalFrequency()

    options = parser.parse_args()

    if options.atomic:
        cpu_config = { 'cpu' : AtomicSimpleCPU }
        big_cpu_config, little_cpu_config = cpu_config, cpu_config
    else:
        big_cpu_config = { 'cpu' : CpuConfig.get("arm_detailed"),
                           'l1i' : devices.L1I,
                           'l1d' : devices.L1D,
                           'wcache' : devices.WalkCache,
                           'l2' : devices.L2 }
        little_cpu_config = { 'cpu' : MinorCPU,
                              'l1i' : devices.L1I,
                              'l1d' : devices.L1D,
                              'wcache' : devices.WalkCache,
                              'l2' : devices.L2 }

    big_cpu_class = big_cpu_config['cpu']
    little_cpu_class = little_cpu_config['cpu']

    kernel_cmd = [
        "earlyprintk=pl011,0x1c090000",
        "console=ttyAMA0",
        "lpj=19988480",
        "norandmaps",
        "loglevel=8",
        "mem=%s" % default_mem_size,
        "root=/dev/vda1",
        "rw",
        "init=%s" % options.kernel_init,
        "vmalloc=768MB",
    ]

    root = Root(full_system=True)

    assert big_cpu_class.memory_mode() == little_cpu_class.memory_mode()
    disks = default_disk if len(options.disk) == 0 else options.disk
    system = createSystem(options.kernel, big_cpu_class.memory_mode(),
                          options.bootscript, disks=disks)

    root.system = system
    system.boot_osflags = " ".join(kernel_cmd)

    # big cluster
    if options.big_cpus > 0:
        system.bigCluster = CpuCluster()
        system.bigCluster.addCPUs(big_cpu_config, options.big_cpus,
                                  options.big_cpu_clock)


    # LITTLE cluster
    if options.little_cpus > 0:
        system.littleCluster = CpuCluster()
        system.littleCluster.addCPUs(little_cpu_config, options.little_cpus,
                                     options.little_cpu_clock)

    # add caches
    if options.caches:
        cluster_mem_bus = addCaches(system, options.last_cache_level)
    else:
        if big_cpu_class.require_caches():
            m5.util.panic("CPU model %s requires caches" % str(big_cpu_class))
        if little_cpu_class.require_caches():
            m5.util.panic("CPU model %s requires caches" %
                          str(little_cpu_class))
        cluster_mem_bus = system.membus

#.........这里部分代码省略.........

def addCommonOptions(parser):
    # system options
    parser.add_option("--list-cpu-types",
                      action="callback", callback=_listCpuTypes,
                      help="List available CPU types")
    parser.add_option("--cpu-type", type="choice", default="atomic",
                      choices=CpuConfig.cpu_names(),
                      help = "type of cpu to run with")
    parser.add_option("--checker", action="store_true");
    parser.add_option("-n", "--num-cpus", type="int", default=1)
    parser.add_option("--sys-clock", action="store", type="string",
                      default='1GHz',
                      help = """Top-level clock for blocks running at system
                      speed""")
    parser.add_option("--cpu-clock", action="store", type="string",
                      default='2GHz',
                      help="Clock for blocks running at CPU speed")
    parser.add_option("--smt", action="store_true", default=False,
                      help = """
                      Only used if multiple programs are specified. If true,
                      then the number of threads per cpu is same as the
                      number of programs.""")

    # Memory Options
    parser.add_option("--list-mem-types",
                      action="callback", callback=_listMemTypes,
                      help="List available memory types")
    parser.add_option("--mem-type", type="choice", default="simple_mem",
                      choices=MemConfig.mem_names(),
                      help = "type of memory to use")
    parser.add_option("--mem-size", action="store", type="string",
                      default="512MB",
                      help="Specify the physical memory size (single memory)")

    #synthesis
    parser.add_option("--syscall-dump", action="store_true", help="Dump the syscall.")
    parser.add_option("--synthesize", action="store_true", help="Generate synthesis code for a benchmark/interval.")
    parser.add_option("--synthesize-start", type="int", default=1, help="synthesis start instruction")
    parser.add_option("--synthesize-interval", type="int", default=10000000, help="synthesis window size")

    # Cache Options
    parser.add_option("--caches", action="store_true")
    parser.add_option("--l2cache", action="store_true")
    parser.add_option("--fastmem", action="store_true")
    parser.add_option("--num-dirs", type="int", default=1)
    parser.add_option("--num-l2caches", type="int", default=1)
    parser.add_option("--num-l3caches", type="int", default=1)
    parser.add_option("--l1d_size", type="string", default="64kB")
    parser.add_option("--l1i_size", type="string", default="32kB")
    parser.add_option("--l2_size", type="string", default="2MB")
    parser.add_option("--l3_size", type="string", default="16MB")
    parser.add_option("--l1d_assoc", type="int", default=2)
    parser.add_option("--l1i_assoc", type="int", default=2)
    parser.add_option("--l2_assoc", type="int", default=8)
    parser.add_option("--l3_assoc", type="int", default=16)
    parser.add_option("--cacheline_size", type="int", default=64)

    # Enable Ruby
    parser.add_option("--ruby", action="store_true")

    # Run duration options
    parser.add_option("-m", "--abs-max-tick", type="int", default=None,
                      metavar="TICKS", help="Run to absolute simulated tick " \
                      "specified including ticks from a restored checkpoint")
    parser.add_option("--rel-max-tick", type="int", default=None,
                      metavar="TICKS", help="Simulate for specified number of" \
                      " ticks relative to the simulation start tick (e.g. if " \
                      "restoring a checkpoint)")
    parser.add_option("--maxtime", type="float", default=None,
                      help="Run to the specified absolute simulated time in " \
                      "seconds")
    parser.add_option("-I", "--maxinsts", action="store", type="int",
                      default=None, help="""Total number of instructions to
                                            simulate (default: run forever)""")
    parser.add_option("--work-item-id", action="store", type="int",
                      help="the specific work id for exit & checkpointing")
    parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
                      help="exit when work starts on the specified cpu")
    parser.add_option("--work-end-exit-count", action="store", type="int",
                      help="exit at specified work end count")
    parser.add_option("--work-begin-exit-count", action="store", type="int",
                      help="exit at specified work begin count")
    parser.add_option("--init-param", action="store", type="int", default=0,
                      help="""Parameter available in simulation with m5
                              initparam""")

    # Simpoint options
    parser.add_option("--simpoint-profile", action="store_true",
                      help="Enable basic block profiling for SimPoints")
    parser.add_option("--simpoint-interval", type="int", default=10000000,
                      help="SimPoint interval in num of instructions")

    # Checkpointing options
    ###Note that performing checkpointing via python script files will override
    ###checkpoint instructions built into binaries.
    parser.add_option("--take-checkpoints", action="store", type="string",
        help="<M,N> take checkpoints at tick M and every N ticks thereafter")
    parser.add_option("--max-checkpoints", action="store", type="int",
        help="the maximum number of checkpoints to drop", default=5)
    parser.add_option("--checkpoint-dir", action="store", type="string",
#.........这里部分代码省略.........

# Create a source clock for the system and set the clock period
system.clk_domain = SrcClockDomain(clock =  options.sys_clock,
                                   voltage_domain = system.voltage_domain)

# Create a CPU voltage domain
system.cpu_voltage_domain = VoltageDomain()

# Create a separate clock domain for the CPUs
system.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
                                       voltage_domain =
                                       system.cpu_voltage_domain)

# If elastic tracing is enabled, then configure the cpu and attach the elastic
# trace probe
if options.elastic_trace_en:
    CpuConfig.config_etrace(CPUClass, system.cpu, options)

# All cpus belong to a common cpu_clk_domain, therefore running at a common
# frequency.
for cpu in system.cpu:
    cpu.clk_domain = system.cpu_clk_domain

if is_kvm_cpu(CPUClass) or is_kvm_cpu(FutureClass):
    if buildEnv['TARGET_ISA'] == 'x86':
        system.vm = KvmVM()
        for process in multiprocesses:
            process.useArchPT = True
            process.kvmInSE = True
    else:
        fatal("KvmCPU can only be used in SE mode with x86")

def addCommonOptions(parser):
    # system options
    parser.add_option("--list-cpu-types",
                      action="callback", callback=_listCpuTypes,
                      help="List available CPU types")
    parser.add_option("--cpu-type", type="choice", default="atomic",
                      choices=CpuConfig.cpu_names(),
                      help = "type of cpu to run with")
    parser.add_option("--checker", action="store_true");
    parser.add_option("-n", "--num-cpus", type="int", default=1)
    parser.add_option("--sys-voltage", action="store", type="string",
                      default='1.0V',
                      help = """Top-level voltage for blocks running at system
                      power supply""")
    parser.add_option("--sys-clock", action="store", type="string",
                      default='1GHz',
                      help = """Top-level clock for blocks running at system
                      speed""")
    parser.add_option("--cpu-clock", action="store", type="string",
                      default='1GHz',
                      help="Clock for blocks running at CPU speed")
    parser.add_option("--smt", action="store_true", default=False,
                      help = """
                      Only used if multiple programs are specified. If true,
                      then the number of threads per cpu is same as the
                      number of programs.""")

    # Memory Options
    parser.add_option("--list-mem-types",
                      action="callback", callback=_listMemTypes,
                      help="List available memory types")
    parser.add_option("--mem-type", type="choice", default="simple_mem",
                      choices=MemConfig.mem_names(),
                      help = "type of memory to use")
    parser.add_option("--mem-channels", type="int", default=1,
                      help = "number of memory channels")
    parser.add_option("--mem-size", action="store", type="string",
                      default="4GB",
                      help="Specify the physical memory size (single memory)")

    # Cache Options
    parser.add_option("--caches", action="store_true")
    parser.add_option("--l2cache", action="store_true")
    #PRODROMOU
    parser.add_option("--l3cache",
                      action = "store_true",
                      help = "Enable L3 cache (Implies L2)")
    parser.add_option("-b", "--benchmark", default="",
                 help="The benchmark to be loaded.")
    parser.add_option("--bench-size", default="ref",
                 help="The size of the benchmark <train/ref>")
    parser.add_option("--total-insts", type="int", 
		       default = 0, # by default "if options.total_insts" fails
		 help="If defined, the simulation is going to keep running until the total number of instructions has been executed accross all threads")
    parser.add_option("--mempolicy", default = "frfcfs", 
		 help="The memory controller scheduling policy to be used")
    parser.add_option("--ckpt-nickname", default=None, type="string",
		 help="If defined, the simulator will use it as part of the checkpoint's name. Example (nickname set as memIntense): cpt.memIntense.20140693 instead of cpt.None.20140693")
    parser.add_option("--mutlu", action="store_true",
                 help="Creates the mem hierarchy used in Mutlu's Par-BS paper")
    parser.add_option("-d", "--dump-interval", default=0, type="int",
		 help="Dumps statistics every defined interval")
    parser.add_option("--per-access-slowdown", default="0ns", type="string",
		 help="Sets the MC's static delay per access. Only used custom_tcl MC class")
    parser.add_option("--slowdown-accesses", default=False, action="store_true", 
		help="Enables per access slowdown. Amount of delay passed with --per-access-slowdown")


    #PRODROMOU
    parser.add_option("--fastmem", action="store_true")
    parser.add_option("--num-dirs", type="int", default=1)
    parser.add_option("--num-l2caches", type="int", default=1)
    parser.add_option("--num-l3caches", type="int", default=1)
    parser.add_option("--l1d_size", type="string", default="32kB")
    parser.add_option("--l1i_size", type="string", default="32kB")
    parser.add_option("--l2_size", type="string", default="512kB")
    parser.add_option("--l3_size", type="string", default="16MB")
    parser.add_option("--l1d_assoc", type="int", default=2)
    parser.add_option("--l1i_assoc", type="int", default=2)
    parser.add_option("--l2_assoc", type="int", default=8)
    parser.add_option("--l3_assoc", type="int", default=16)
    parser.add_option("--cacheline_size", type="int", default=64)

    # Enable Ruby
    parser.add_option("--ruby", action="store_true")

    # Run duration options
    parser.add_option("-m", "--abs-max-tick", type="int", default=None,
                      metavar="TICKS", help="Run to absolute simulated tick " \
                      "specified including ticks from a restored checkpoint")
    parser.add_option("--rel-max-tick", type="int", default=None,
                      metavar="TICKS", help="Simulate for specified number of" \
                      " ticks relative to the simulation start tick (e.g. if " \
                      "restoring a checkpoint)")
    parser.add_option("--maxtime", type="float", default=None,
                      help="Run to the specified absolute simulated time in " \
                      "seconds")
    parser.add_option("-I", "--maxinsts", action="store", type="int",
                      default=None, help="""Total number of instructions to
                                            simulate (default: run forever)""")
#.........这里部分代码省略.........