gem5/configs/example/se.py
Lisa Hsu 3922b2e076 warmup of 1B cpu cycles.
configs/example/fs.py:
configs/example/se.py:
    warm up of 1B CPU cycles

--HG--
extra : convert_revision : 0f3263f466fde4cd86e0663930e83617a6b3faad
2006-10-23 19:32:57 -04:00

275 lines
9.4 KiB
Python

# Copyright (c) 2006 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# 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: Steve Reinhardt
# Simple test script
#
# "m5 test.py"
import m5
from m5.objects import *
import os, optparse, sys
m5.AddToPath('../common')
parser = optparse.OptionParser()
# Benchmark options
parser.add_option("-c", "--cmd",
default="../../tests/test-progs/hello/bin/alpha/linux/hello",
help="The binary to run in syscall emulation mode.")
parser.add_option("-o", "--options", default="",
help="The options to pass to the binary, use \" \" around the entire\
string.")
parser.add_option("-i", "--input", default="",
help="A file of input to give to the binary.")
# System options
parser.add_option("-d", "--detailed", action="store_true")
parser.add_option("-t", "--timing", action="store_true")
parser.add_option("--caches", action="store_true")
# Run duration options
parser.add_option("-m", "--maxtick", type="int")
parser.add_option("--maxtime", type="float")
#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> will take checkpoint at cycle M and every N cycles \
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>")
#CPU Switching - default switch model generally goes from a checkpoint
#to a timing simple CPU with caches to warm up, then to detailed CPU for
#data measurement
parser.add_option("-s", "--standard_switch", action="store_true",
help="switch from one cpu mode to another")
(options, args) = parser.parse_args()
if args:
print "Error: script doesn't take any positional arguments"
sys.exit(1)
class MyCache(BaseCache):
assoc = 2
block_size = 64
latency = 1
mshrs = 10
tgts_per_mshr = 5
process = LiveProcess()
process.executable = options.cmd
process.cmd = options.cmd + " " + options.options
if options.input != "":
process.input = options.input
if options.detailed:
#check for SMT workload
workloads = options.cmd.split(';')
if len(workloads) > 1:
process = []
smt_idx = 0
inputs = []
if options.input != "":
inputs = options.input.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]
process += [smt_process, ]
smt_idx += 1
if options.timing:
cpu = TimingSimpleCPU()
elif options.detailed:
cpu = DerivO3CPU()
else:
cpu = AtomicSimpleCPU()
cpu.workload = process
cpu.cpu_id = 0
system = System(cpu = cpu,
physmem = PhysicalMemory(range=AddrRange("512MB")),
membus = Bus())
system.physmem.port = system.membus.port
system.cpu.connectMemPorts(system.membus)
system.cpu.mem = system.physmem
system.cpu.clock = '2GHz'
if options.caches and not options.standard_switch:
system.cpu.addPrivateSplitL1Caches(MyCache(size = '32kB'),
MyCache(size = '64kB'))
root = Root(system = system)
if options.timing or options.detailed:
root.system.mem_mode = 'timing'
if options.standard_switch:
switch_cpu = TimingSimpleCPU(defer_registration=True, cpu_id=1)
switch_cpu1 = DerivO3CPU(defer_registration=True, cpu_id=2)
switch_cpu.system = system
switch_cpu1.system = system
switch_cpu.clock = cpu.clock
switch_cpu1.clock = cpu.clock
if options.caches:
switch_cpu.addPrivateSplitL1Caches(MyCache(size = '32kB'),
MyCache(size = '64kB'))
switch_cpu.workload = process
switch_cpu1.workload = process
switch_cpu.mem = system.physmem
switch_cpu1.mem = system.physmem
switch_cpu.connectMemPorts(system.membus)
root.switch_cpu = switch_cpu
root.switch_cpu1 = switch_cpu1
switch_cpu_list = [(system.cpu, switch_cpu)]
switch_cpu_list1 = [(switch_cpu, switch_cpu1)]
# instantiate configuration
m5.instantiate(root)
if options.checkpoint_dir:
cptdir = options.checkpoint_dir
else:
cptdir = getcwd()
if options.checkpoint_restore:
from os.path import isdir
from os import listdir, getcwd
import re
if not isdir(cptdir):
m5.panic("checkpoint dir %s does not exist!" % cptdir)
dirs = listdir(cptdir)
expr = re.compile('cpt.([0-9]*)')
cpts = []
for dir in dirs:
match = expr.match(dir)
if match:
cpts.append(match.group(1))
cpts.sort(lambda a,b: cmp(long(a), long(b)))
if options.checkpoint_restore > len(cpts):
m5.panic('Checkpoint %d not found' % options.checkpoint_restore)
print "restoring checkpoint from ","/".join([cptdir, "cpt.%s" % cpts[options.checkpoint_restore - 1]])
m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint_restore - 1]]))
if options.standard_switch:
exit_event = m5.simulate(10000)
## when you change to Timing (or Atomic), you halt the system given
## as argument. When you are finished with the system changes
## (including switchCpus), you must resume the system manually.
## You DON'T need to resume after just switching CPUs if you haven't
## changed anything on the system level.
m5.changeToTiming(system)
m5.switchCpus(switch_cpu_list)
m5.resume(system)
exit_event = m5.simulate(500000000000)
m5.switchCpus(switch_cpu_list1)
if options.maxtick:
maxtick = options.maxtick
elif options.maxtime:
simtime = int(options.maxtime * root.clock.value)
print "simulating for: ", simtime
maxtick = simtime
else:
maxtick = -1
num_checkpoints = 0
exit_cause = ''
if options.take_checkpoints:
[when, period] = options.take_checkpoints.split(",", 1)
when = int(when)
period = int(period)
exit_event = m5.simulate(when)
while exit_event.getCause() == "checkpoint":
exit_event = m5.simulate(when - m5.curTick())
if exit_event.getCause() == "simulate() limit reached":
m5.checkpoint(root, cptdir + "cpt.%d")
num_checkpoints += 1
sim_ticks = when
exit_cause = "maximum %d checkpoints dropped" % options.max_checkpoints
while num_checkpoints < options.max_checkpoints:
if (sim_ticks + period) > maxtick and maxtick != -1:
exit_event = m5.simulate(maxtick - sim_ticks)
exit_cause = exit_event.getCause()
break
else:
exit_event = m5.simulate(period)
sim_ticks += period
while exit_event.getCause() == "checkpoint":
exit_event = m5.simulate(period - m5.curTick())
if exit_event.getCause() == "simulate() limit reached":
m5.checkpoint(root, cptdir + "cpt.%d")
num_checkpoints += 1
else: #no checkpoints being taken via this script
exit_event = m5.simulate(maxtick)
while exit_event.getCause() == "checkpoint":
m5.checkpoint(root, cptdir + "cpt.%d")
num_checkpoints += 1
if num_checkpoints == options.max_checkpoints:
exit_cause = "maximum %d checkpoints dropped" % options.max_checkpoints
break
if maxtick == -1:
exit_event = m5.simulate(maxtick)
else:
exit_event = m5.simulate(maxtick - m5.curTick())
exit_cause = exit_event.getCause()
if exit_cause == '':
exit_cause = exit_event.getCause()
print 'Exiting @ cycle', m5.curTick(), 'because ', exit_cause