# 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.
#
# Authors: Andreas Sandberg
# Gabor Dozsa
# System components used by the bigLITTLE.py configuration script
import m5
from m5.objects import *
m5.util.addToPath('../../')
from common.Caches import *
from common import CpuConfig
have_kvm = "kvm" in CpuConfig.cpu_names()
class L1I(L1_ICache):
tag_latency = 1
data_latency = 1
response_latency = 1
mshrs = 4
tgts_per_mshr = 8
size = '48kB'
assoc = 3
class L1D(L1_DCache):
tag_latency = 2
data_latency = 2
def addCommonOptions(parser):
# start by adding the base options that do not assume an ISA
addNoISAOptions(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="AtomicSimpleCPU",
choices=CpuConfig.cpu_names(),
help="type of cpu to run with")
parser.add_option("--checker", action="store_true")
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.""")
parser.add_option("--elastic-trace-en",
action="store_true",
help="""Enable capture of data dependency and instruction
fetch traces using elastic trace probe.""")
# Trace file paths input to trace probe in a capture simulation and input
# to Trace CPU in a replay simulation
parser.add_option("--inst-trace-file",
action="store",
type="string",
help="""Instruction fetch trace file input to
Elastic Trace probe in a capture simulation and
Trace CPU in a replay simulation""",
default="")
parser.add_option("--data-trace-file",
action="store",
type="string",
help="""Data dependency trace file input to
Elastic Trace probe in a capture simulation and
Trace CPU in a replay simulation""",
default="")
parser.add_option("-l", "--lpae", action="store_true")
parser.add_option("-V", "--virtualisation", action="store_true")
# dist-gem5 options
parser.add_option("--dist",
action="store_true",
help="Parallel distributed gem5 simulation.")
parser.add_option(
"--dist-sync-on-pseudo-op",
action="store_true",
help="Use a pseudo-op to start dist-gem5 synchronization.")
parser.add_option("--is-switch", action="store_true",
help="Select the network switch simulator process for a"\
"distributed gem5 run")
parser.add_option("--dist-rank",
default=0,
action="store",
type="int",
help="Rank of this system within the dist gem5 run.")
parser.add_option(
"--dist-size",
default=0,
action="store",
type="int",
help="Number of gem5 processes within the dist gem5 run.")
parser.add_option(
"--dist-server-name",
default="127.0.0.1",
action="store",
type="string",
help="Name of the message server host\nDEFAULT: localhost")
parser.add_option("--dist-server-port",
default=2200,
action="store",
type="int",
help="Message server listen port\nDEFAULT: 2200")
parser.add_option(
"--dist-sync-repeat",
default="0us",
action="store",
type="string",
help=
"Repeat interval for synchronisation barriers among dist-gem5 processes\nDEFAULT: --ethernet-linkdelay"
)
parser.add_option(
"--dist-sync-start",
default="5200000000000t",
action="store",
type="string",
help=
"Time to schedule the first dist synchronisation barrier\nDEFAULT:5200000000000t"
)
parser.add_option("--ethernet-linkspeed",
default="10Gbps",
action="store",
type="string",
help="Link speed in bps\nDEFAULT: 10Gbps")
parser.add_option("--ethernet-linkdelay",
default="10us",
action="store",
type="string",
help="Link delay in seconds\nDEFAULT: 10us")
# Run duration options
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,
help="""Exit after initialization. Do not simulate time.
Useful when gem5 is run as a library.""")
# DOLMA options
parser.add_option(
'--mode',
action="store",
type="int",
default=0,
help="Set DOLMA mode (0 is off, 1 is default, 2 is conservative)")
parser.add_option('--blockLoads',
action="store",
default=0,
help="Have DOLMA block (instead of restrict) loads")
parser.add_option('--blockStores',
action="store",
default=0,
help="Have DOLMA block (instead of restrict) stores")
parser.add_option('--stt',
action="store",
default=0,
help="Enable STT alongside DOLMA")
# 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")
parser.add_option(
"--take-simpoint-checkpoints",
action="store",
type="string",
help="<simpoint file,weight file,interval-length,warmup-length>")
parser.add_option("--restore-simpoint-checkpoint",
action="store_true",
help="restore from a simpoint checkpoint taken with " +
"--take-simpoint-checkpoints")
# 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="AtomicSimpleCPU",
choices=CpuConfig.cpu_names(),
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")
parser.add_option(
"-S",
"--simpoint",
action="store_true",
default=False,
help="""Use workload simpoints as an instruction offset for
--checkpoint-restore or --take-checkpoint.""")
parser.add_option(
"--at-instruction",
action="store_true",
default=False,
help="""Treat value of --checkpoint-restore or --take-checkpoint as a
number of instructions.""")
parser.add_option(
"--spec-input",
default="ref",
type="choice",
choices=["ref", "test", "train", "smred", "mdred", "lgred"],
help="Input set size for SPEC CPU2000 benchmarks.")
parser.add_option("--arm-iset",
default="arm",
type="choice",
choices=["arm", "thumb", "aarch64"],
help="ARM instruction set.")
# 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.
#
# Authors: Andreas Sandberg
# Gabor Dozsa
# System components used by the bigLITTLE.py configuration script
import m5
from m5.objects import *
m5.util.addToPath('../../')
from common.Caches import *
from common import CpuConfig
have_kvm = "ArmV8KvmCPU" in CpuConfig.cpu_names()
class L1I(L1_ICache):
tag_latency = 1
data_latency = 1
response_latency = 1
mshrs = 4
tgts_per_mshr = 8
size = '48kB'
assoc = 3
class L1D(L1_DCache):
tag_latency = 2
data_latency = 2
# 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.
#
# Authors: Andreas Sandberg
# Gabor Dozsa
# System components used by the bigLITTLE.py configuration script
import m5
from m5.objects import *
m5.util.addToPath('../../')
from common.Caches import *
from common import CpuConfig
have_kvm = "kvm" in CpuConfig.cpu_names()
class L1I(L1_ICache):
tag_latency = 1
data_latency = 1
response_latency = 1
mshrs = 4
tgts_per_mshr = 8
size = '48kB'
assoc = 3
class L1D(L1_DCache):
tag_latency = 2
data_latency = 2
response_latency = 1
#
# Authors: Andreas Sandberg
# Gabor Dozsa
# System components used by the bigLITTLE.py configuration script
from __future__ import print_function
from __future__ import absolute_import
import m5
from m5.objects import *
m5.util.addToPath('../../')
from common.Caches import *
from common import CpuConfig
have_kvm = "ArmV8KvmCPU" in CpuConfig.cpu_names()
class L1I(L1_ICache):
tag_latency = 1
data_latency = 1
response_latency = 1
mshrs = 4
tgts_per_mshr = 8
size = '48kB'
assoc = 3
class L1D(L1_DCache):
tag_latency = 2
data_latency = 2
response_latency = 1
def addCommonOptions(parser):
# system options
parser.add_option("--num-fpgas", type="int", default=0)
parser.add_option("--list-cpu-types",
action="callback",
callback=_listCpuTypes,
help="List available CPU types")
parser.add_option("--cpu-type",
type="choice",
default="timing",
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("--fpga-clock",
action="store",
type="string",
default='300MHz',
help="Clock for blocks running at FPGA 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.""")
parser.add_option("--elastic-trace-en",
action="store_true",
help="""Enable capture of data dependency and instruction
fetch traces using elastic trace probe.""")
# Trace file paths input to trace probe in a capture simulation and input
# to Trace CPU in a replay simulation
parser.add_option("--inst-trace-file",
action="store",
type="string",
help="""Instruction fetch trace file input to
Elastic Trace probe in a capture simulation and
Trace CPU in a replay simulation""",
default="")
parser.add_option("--data-trace-file",
action="store",
type="string",
help="""Data dependency trace file input to
Elastic Trace probe in a capture simulation and
Trace CPU in a replay simulation""",
default="")
# 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("--cacheline_size", type="int", default=64)
# dist-gem5 options
parser.add_option("--dist",
action="store_true",
help="Parallel distributed gem5 simulation.")
parser.add_option("--is-switch", action="store_true",
help="Select the network switch simulator process for a"\
"distributed gem5 run")
parser.add_option("--dist-rank",
default=0,
action="store",
type="int",
help="Rank of this system within the dist gem5 run.")
parser.add_option(
"--dist-size",
default=0,
action="store",
type="int",
help="Number of gem5 processes within the dist gem5 run.")
parser.add_option(
"--dist-server-name",
default="127.0.0.1",
action="store",
type="string",
help="Name of the message server host\nDEFAULT: localhost")
parser.add_option("--dist-server-port",
default=2200,
action="store",
type="int",
help="Message server listen port\nDEFAULT: 2200")
parser.add_option(
"--dist-sync-repeat",
default="0us",
action="store",
type="string",
help=
"Repeat interval for synchronisation barriers among dist-gem5 processes\nDEFAULT: --ethernet-linkdelay"
)
parser.add_option(
"--dist-sync-start",
default="5200000000000t",
action="store",
type="string",
help=
"Time to schedule the first dist synchronisation barrier\nDEFAULT:5200000000000t"
)
parser.add_option("--ethernet-linkspeed",
default="10Gbps",
action="store",
type="string",
help="Link speed in bps\nDEFAULT: 10Gbps")
parser.add_option("--ethernet-linkdelay",
default="10us",
action="store",
type="string",
help="Link delay in seconds\nDEFAULT: 10us")
# 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,
help="""Exit after initialization. Do not simulate time.
Useful when gem5 is run as a library.""")
# 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")
parser.add_option(
"--take-simpoint-checkpoints",
action="store",
type="string",
help="<simpoint file,weight file,interval-length,warmup-length>")
parser.add_option("--restore-simpoint-checkpoint",
action="store_true",
help="restore from a simpoint checkpoint taken with " +
"--take-simpoint-checkpoints")
# 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=CpuConfig.cpu_names(),
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")
parser.add_option(
"-S",
"--simpoint",
action="store_true",
default=False,
help="""Use workload simpoints as an instruction offset for
--checkpoint-restore or --take-checkpoint.""")
parser.add_option(
"--at-instruction",
action="store_true",
default=False,
help="""Treat value of --checkpoint-restore or --take-checkpoint as a
number of instructions.""")
parser.add_option(
"--spec-input",
default="ref",
type="choice",
choices=["ref", "test", "train", "smred", "mdred", "lgred"],
help="Input set size for SPEC CPU2000 benchmarks.")
parser.add_option("--arm-iset",
default="arm",
type="choice",
choices=["arm", "thumb", "aarch64"],
help="ARM instruction set.")
def addCommonOptions(parser):
# start by adding the base options that do not assume an ISA
addNoISAOptions(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="AtomicSimpleCPU",
choices=CpuConfig.cpu_names(),
help = "type of cpu to run with")
parser.add_option("--checker", action="store_true");
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.""")
parser.add_option("--elastic-trace-en", action="store_true",
help="""Enable capture of data dependency and instruction
fetch traces using elastic trace probe.""")
# Trace file paths input to trace probe in a capture simulation and input
# to Trace CPU in a replay simulation
parser.add_option("--inst-trace-file", action="store", type="string",
help="""Instruction fetch trace file input to
Elastic Trace probe in a capture simulation and
Trace CPU in a replay simulation""", default="")
parser.add_option("--data-trace-file", action="store", type="string",
help="""Data dependency trace file input to
Elastic Trace probe in a capture simulation and
Trace CPU in a replay simulation""", default="")
parser.add_option("-l", "--lpae", action="store_true")
parser.add_option("-V", "--virtualisation", action="store_true")
parser.add_option("--fastmem", action="store_true")
# dist-gem5 options
parser.add_option("--dist", action="store_true",
help="Parallel distributed gem5 simulation.")
parser.add_option("--dist-sync-on-pseudo-op", action="store_true",
help="Use a pseudo-op to start dist-gem5 synchronization.")
parser.add_option("--is-switch", action="store_true",
help="Select the network switch simulator process for a"\
"distributed gem5 run")
parser.add_option("--dist-rank", default=0, action="store", type="int",
help="Rank of this system within the dist gem5 run.")
parser.add_option("--dist-size", default=0, action="store", type="int",
help="Number of gem5 processes within the dist gem5 run.")
parser.add_option("--dist-server-name",
default="127.0.0.1",
action="store", type="string",
help="Name of the message server host\nDEFAULT: localhost")
parser.add_option("--dist-server-port",
default=2200,
action="store", type="int",
help="Message server listen port\nDEFAULT: 2200")
parser.add_option("--dist-sync-repeat",
default="0us",
action="store", type="string",
help="Repeat interval for synchronisation barriers among dist-gem5 processes\nDEFAULT: --ethernet-linkdelay")
parser.add_option("--dist-sync-start",
default="5200000000000t",
action="store", type="string",
help="Time to schedule the first dist synchronisation barrier\nDEFAULT:5200000000000t")
parser.add_option("--ethernet-linkspeed", default="10Gbps",
action="store", type="string",
help="Link speed in bps\nDEFAULT: 10Gbps")
parser.add_option("--ethernet-linkdelay", default="10us",
action="store", type="string",
help="Link delay in seconds\nDEFAULT: 10us")
# Run duration options
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,
help="""Exit after initialization. Do not simulate time.
Useful when gem5 is run as a library.""")
# 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")
parser.add_option("--take-simpoint-checkpoints", action="store", type="string",
help="<simpoint file,weight file,interval-length,warmup-length>")
parser.add_option("--restore-simpoint-checkpoint", action="store_true",
help="restore from a simpoint checkpoint taken with " +
"--take-simpoint-checkpoints")
# 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="AtomicSimpleCPU", choices=CpuConfig.cpu_names(),
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")
parser.add_option("-S", "--simpoint", action="store_true", default=False,
help="""Use workload simpoints as an instruction offset for
--checkpoint-restore or --take-checkpoint.""")
parser.add_option("--at-instruction", action="store_true", default=False,
help="""Treat value of --checkpoint-restore or --take-checkpoint as a
number of instructions.""")
parser.add_option("--spec-input", default="ref", type="choice",
choices=["ref", "test", "train", "smred", "mdred",
"lgred"],
help="Input set size for SPEC CPU2000 benchmarks.")
parser.add_option("--arm-iset", default="arm", type="choice",
choices=["arm", "thumb", "aarch64"],
help="ARM instruction set.")
