9f1b60e05c
maxinsts & max_inst redundant prog_intvl and profile seem redundant, but profile looks to be unused add -p option for progress intervals
374 lines
15 KiB
Python
374 lines
15 KiB
Python
# Copyright (c) 2006-2008 The Regents of The University of Michigan
|
|
# Copyright (c) 2010 Advanced Micro Devices, Inc.
|
|
# 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: Lisa Hsu
|
|
|
|
from os import getcwd
|
|
from os.path import join as joinpath
|
|
|
|
import m5
|
|
from m5.defines import buildEnv
|
|
from m5.objects import *
|
|
from m5.util import *
|
|
|
|
addToPath('../common')
|
|
|
|
def setCPUClass(options):
|
|
|
|
atomic = False
|
|
if options.timing:
|
|
class TmpClass(TimingSimpleCPU): pass
|
|
elif options.detailed:
|
|
if not options.caches:
|
|
print "O3 CPU must be used with caches"
|
|
sys.exit(1)
|
|
class TmpClass(DerivO3CPU): pass
|
|
elif options.inorder:
|
|
if not options.caches:
|
|
print "InOrder CPU must be used with caches"
|
|
sys.exit(1)
|
|
class TmpClass(InOrderCPU): pass
|
|
else:
|
|
class TmpClass(AtomicSimpleCPU): pass
|
|
atomic = True
|
|
|
|
CPUClass = None
|
|
test_mem_mode = 'atomic'
|
|
|
|
if not atomic:
|
|
if options.checkpoint_restore != None or options.fast_forward:
|
|
CPUClass = TmpClass
|
|
class TmpClass(AtomicSimpleCPU): pass
|
|
else:
|
|
test_mem_mode = 'timing'
|
|
|
|
return (TmpClass, test_mem_mode, CPUClass)
|
|
|
|
|
|
def run(options, root, testsys, cpu_class):
|
|
if options.maxtick:
|
|
maxtick = options.maxtick
|
|
elif options.maxtime:
|
|
simtime = m5.ticks.seconds(simtime)
|
|
print "simulating for: ", simtime
|
|
maxtick = simtime
|
|
else:
|
|
maxtick = m5.MaxTick
|
|
|
|
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")
|
|
|
|
np = options.num_cpus
|
|
max_checkpoints = options.max_checkpoints
|
|
switch_cpus = None
|
|
|
|
if options.prog_intvl:
|
|
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(defer_registration=True, cpu_id=(np+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
|
|
if not buildEnv['FULL_SYSTEM']:
|
|
switch_cpus[i].workload = testsys.cpu[i].workload
|
|
switch_cpus[i].clock = testsys.cpu[0].clock
|
|
# simulation period
|
|
if options.maxinsts:
|
|
switch_cpus[i].max_insts_any_thread = options.maxinsts
|
|
|
|
testsys.switch_cpus = switch_cpus
|
|
switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)]
|
|
|
|
if options.standard_switch:
|
|
if not options.caches:
|
|
# O3 CPU must have a cache to work.
|
|
print "O3 CPU must be used with caches"
|
|
sys.exit(1)
|
|
|
|
switch_cpus = [TimingSimpleCPU(defer_registration=True, cpu_id=(np+i))
|
|
for i in xrange(np)]
|
|
switch_cpus_1 = [DerivO3CPU(defer_registration=True, cpu_id=(2*np+i))
|
|
for i in xrange(np)]
|
|
|
|
for i in xrange(np):
|
|
switch_cpus[i].system = testsys
|
|
switch_cpus_1[i].system = testsys
|
|
if not buildEnv['FULL_SYSTEM']:
|
|
switch_cpus[i].workload = testsys.cpu[i].workload
|
|
switch_cpus_1[i].workload = testsys.cpu[i].workload
|
|
switch_cpus[i].clock = testsys.cpu[0].clock
|
|
switch_cpus_1[i].clock = testsys.cpu[0].clock
|
|
|
|
# if restoring, make atomic cpu simulate only a few instructions
|
|
if options.checkpoint_restore != None:
|
|
testsys.cpu[i].max_insts_any_thread = 1
|
|
# Fast forward to specified location if we are not restoring
|
|
elif options.fast_forward:
|
|
testsys.cpu[i].max_insts_any_thread = int(options.fast_forward)
|
|
# Fast forward to a simpoint (warning: time consuming)
|
|
elif options.simpoint:
|
|
if testsys.cpu[i].workload[0].simpoint == 0:
|
|
fatal('simpoint not found')
|
|
testsys.cpu[i].max_insts_any_thread = \
|
|
testsys.cpu[i].workload[0].simpoint
|
|
# No distance specified, just switch
|
|
else:
|
|
testsys.cpu[i].max_insts_any_thread = 1
|
|
|
|
# warmup period
|
|
if options.warmup_insts:
|
|
switch_cpus[i].max_insts_any_thread = options.warmup_insts
|
|
|
|
# simulation period
|
|
if options.maxinsts:
|
|
switch_cpus_1[i].max_insts_any_thread = options.maxinsts
|
|
|
|
testsys.switch_cpus = switch_cpus
|
|
testsys.switch_cpus_1 = switch_cpus_1
|
|
switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)]
|
|
switch_cpu_list1 = [(switch_cpus[i], switch_cpus_1[i]) for i in xrange(np)]
|
|
|
|
# set the checkpoint in the cpu before m5.instantiate is called
|
|
if options.take_checkpoints != None and \
|
|
(options.simpoint or options.at_instruction):
|
|
offset = int(options.take_checkpoints)
|
|
# Set an instruction break point
|
|
if options.simpoint:
|
|
for i in xrange(np):
|
|
if testsys.cpu[i].workload[0].simpoint == 0:
|
|
fatal('no simpoint for testsys.cpu[%d].workload[0]', i)
|
|
checkpoint_inst = int(testsys.cpu[i].workload[0].simpoint) + offset
|
|
testsys.cpu[i].max_insts_any_thread = checkpoint_inst
|
|
# used for output below
|
|
options.take_checkpoints = checkpoint_inst
|
|
else:
|
|
options.take_checkpoints = offset
|
|
# Set all test cpus with the right number of instructions
|
|
# for the upcoming simulation
|
|
for i in xrange(np):
|
|
testsys.cpu[i].max_insts_any_thread = offset
|
|
|
|
checkpoint_dir = None
|
|
if options.checkpoint_restore != None:
|
|
from os.path import isdir, exists
|
|
from os import listdir
|
|
import re
|
|
|
|
if not isdir(cptdir):
|
|
fatal("checkpoint dir %s does not exist!", cptdir)
|
|
|
|
if options.at_instruction or options.simpoint:
|
|
inst = options.checkpoint_restore
|
|
if options.simpoint:
|
|
# assume workload 0 has the simpoint
|
|
if testsys.cpu[0].workload[0].simpoint == 0:
|
|
fatal('Unable to find simpoint')
|
|
inst += int(testsys.cpu[0].workload[0].simpoint)
|
|
|
|
checkpoint_dir = joinpath(cptdir,
|
|
"cpt.%s.%s" % (options.bench, inst))
|
|
if not exists(checkpoint_dir):
|
|
fatal("Unable to find checkpoint directory %s", checkpoint_dir)
|
|
else:
|
|
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)))
|
|
|
|
cpt_num = options.checkpoint_restore
|
|
|
|
if cpt_num > len(cpts):
|
|
fatal('Checkpoint %d not found', cpt_num)
|
|
|
|
## Adjust max tick based on our starting tick
|
|
maxtick = maxtick - int(cpts[cpt_num - 1])
|
|
checkpoint_dir = joinpath(cptdir, "cpt.%s" % cpts[cpt_num - 1])
|
|
|
|
m5.instantiate(checkpoint_dir)
|
|
|
|
if options.standard_switch or cpu_class:
|
|
if options.standard_switch:
|
|
print "Switch at instruction count:%s" % \
|
|
str(testsys.cpu[0].max_insts_any_thread)
|
|
exit_event = m5.simulate()
|
|
elif cpu_class and options.fast_forward:
|
|
print "Switch at instruction count:%s" % \
|
|
str(testsys.cpu[0].max_insts_any_thread)
|
|
exit_event = m5.simulate()
|
|
else:
|
|
print "Switch at curTick count:%s" % str(10000)
|
|
exit_event = m5.simulate(10000)
|
|
print "Switched CPUS @ tick %s" % (m5.curTick())
|
|
|
|
# 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(testsys)
|
|
m5.switchCpus(switch_cpu_list)
|
|
m5.resume(testsys)
|
|
|
|
if options.standard_switch:
|
|
print "Switch at instruction count:%d" % \
|
|
(testsys.switch_cpus[0].max_insts_any_thread)
|
|
|
|
#warmup instruction count may have already been set
|
|
if options.warmup_insts:
|
|
exit_event = m5.simulate()
|
|
else:
|
|
exit_event = m5.simulate(options.warmup)
|
|
print "Switching CPUS @ tick %s" % (m5.curTick())
|
|
print "Simulation ends instruction count:%d" % \
|
|
(testsys.switch_cpus_1[0].max_insts_any_thread)
|
|
m5.drain(testsys)
|
|
m5.switchCpus(switch_cpu_list1)
|
|
m5.resume(testsys)
|
|
|
|
num_checkpoints = 0
|
|
exit_cause = ''
|
|
|
|
# If we're taking and restoring checkpoints, use checkpoint_dir
|
|
# option only for finding the checkpoints to restore from. This
|
|
# lets us test checkpointing by restoring from one set of
|
|
# checkpoints, generating a second set, and then comparing them.
|
|
if options.take_checkpoints and options.checkpoint_restore:
|
|
if m5.options.outdir:
|
|
cptdir = m5.options.outdir
|
|
else:
|
|
cptdir = getcwd()
|
|
|
|
# Checkpoints being taken via the command line at <when> and at
|
|
# subsequent periods of <period>. Checkpoint instructions
|
|
# received from the benchmark running are ignored and skipped in
|
|
# favor of command line checkpoint instructions.
|
|
if options.take_checkpoints != None :
|
|
if options.at_instruction or options.simpoint:
|
|
checkpoint_inst = int(options.take_checkpoints)
|
|
|
|
# maintain correct offset if we restored from some instruction
|
|
if options.checkpoint_restore != None:
|
|
checkpoint_inst += options.checkpoint_restore
|
|
|
|
print "Creating checkpoint at inst:%d" % (checkpoint_inst)
|
|
exit_event = m5.simulate()
|
|
print "exit cause = %s" % (exit_event.getCause())
|
|
|
|
# skip checkpoint instructions should they exist
|
|
while exit_event.getCause() == "checkpoint":
|
|
exit_event = m5.simulate()
|
|
|
|
if exit_event.getCause() == \
|
|
"a thread reached the max instruction count":
|
|
m5.checkpoint(joinpath(cptdir, "cpt.%s.%d" % \
|
|
(options.bench, checkpoint_inst)))
|
|
print "Checkpoint written."
|
|
num_checkpoints += 1
|
|
|
|
if exit_event.getCause() == "user interrupt received":
|
|
exit_cause = exit_event.getCause();
|
|
else:
|
|
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(joinpath(cptdir, "cpt.%d"))
|
|
num_checkpoints += 1
|
|
|
|
sim_ticks = when
|
|
exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
|
|
while num_checkpoints < max_checkpoints and \
|
|
exit_event.getCause() == "simulate() limit reached":
|
|
if (sim_ticks + period) > maxtick:
|
|
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(sim_ticks - m5.curTick())
|
|
if exit_event.getCause() == "simulate() limit reached":
|
|
m5.checkpoint(joinpath(cptdir, "cpt.%d"))
|
|
num_checkpoints += 1
|
|
|
|
if exit_event.getCause() != "simulate() limit reached":
|
|
exit_cause = exit_event.getCause();
|
|
|
|
else: # no checkpoints being taken via this script
|
|
if options.fast_forward:
|
|
m5.stats.reset()
|
|
print "**** REAL SIMULATION ****"
|
|
exit_event = m5.simulate(maxtick)
|
|
|
|
while exit_event.getCause() == "checkpoint":
|
|
m5.checkpoint(joinpath(cptdir, "cpt.%d"))
|
|
num_checkpoints += 1
|
|
if num_checkpoints == max_checkpoints:
|
|
exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
|
|
break
|
|
|
|
exit_event = m5.simulate(maxtick - m5.curTick())
|
|
exit_cause = exit_event.getCause()
|
|
|
|
if exit_cause == '':
|
|
exit_cause = exit_event.getCause()
|
|
print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_cause)
|
|
|
|
if options.checkpoint_at_end:
|
|
m5.checkpoint(joinpath(cptdir, "cpt.%d"))
|
|
|