diff options
Diffstat (limited to 'configs/example/fs.py')
| -rw-r--r-- | configs/example/fs.py | 198 |
1 files changed, 149 insertions, 49 deletions
diff --git a/configs/example/fs.py b/configs/example/fs.py index a5b8772af..76b62a066 100644 --- a/configs/example/fs.py +++ b/configs/example/fs.py @@ -40,26 +40,49 @@ if not m5.build_env['FULL_SYSTEM']: parser = optparse.OptionParser() -parser.add_option("-d", "--detailed", action="store_true") -parser.add_option("-t", "--timing", action="store_true") -parser.add_option("-n", "--num_cpus", type="int", default=1) -parser.add_option("--caches", action="store_true") -parser.add_option("-m", "--maxtick", type="int") -parser.add_option("--maxtime", type="float") +# 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) + +# system options +parser.add_option("-d", "--detailed", action="store_true") +parser.add_option("-t", "--timing", action="store_true") +parser.add_option("-n", "--num_cpus", type="int", default=1) +parser.add_option("--caches", action="store_true") + +# Run duration options +parser.add_option("-m", "--maxtick", type="int") +parser.add_option("--maxtime", type="float") + +# 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") + +# 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("-c", "--checkpoint", action="store", type="int", +parser.add_option("-r", "--checkpoint_restore", action="store", type="int", help="restore from checkpoint <N>") +# 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("-s", "--standard_switch", action="store_true", + help="switch from one cpu mode to another") + (options, args) = parser.parse_args() if args: @@ -74,23 +97,24 @@ class MyCache(BaseCache): tgts_per_mshr = 5 protocol = CoherenceProtocol(protocol='moesi') -# client system CPU is always simple... note this is an assignment of +# driver system CPU is always simple... note this is an assignment of # a class, not an instance. -ClientCPUClass = AtomicSimpleCPU -client_mem_mode = 'atomic' +DriveCPUClass = AtomicSimpleCPU +drive_mem_mode = 'atomic' +# system under test can be any of these CPUs if options.detailed: - ServerCPUClass = DerivO3CPU - server_mem_mode = 'timing' + TestCPUClass = DerivO3CPU + test_mem_mode = 'timing' elif options.timing: - ServerCPUClass = TimingSimpleCPU - server_mem_mode = 'timing' + TestCPUClass = TimingSimpleCPU + test_mem_mode = 'timing' else: - ServerCPUClass = AtomicSimpleCPU - server_mem_mode = 'atomic' + TestCPUClass = AtomicSimpleCPU + test_mem_mode = 'atomic' -ServerCPUClass.clock = '2GHz' -ClientCPUClass.clock = '2GHz' +TestCPUClass.clock = '2GHz' +DriveCPUClass.clock = '2GHz' if options.benchmark: try: @@ -105,38 +129,59 @@ else: else: bm = [SysConfig()] -server_sys = makeLinuxAlphaSystem(server_mem_mode, bm[0]) +test_sys = makeLinuxAlphaSystem(test_mem_mode, bm[0]) np = options.num_cpus -server_sys.cpu = [ServerCPUClass(cpu_id=i) for i in xrange(np)] +test_sys.cpu = [TestCPUClass(cpu_id=i) for i in xrange(np)] for i in xrange(np): - if options.caches: - server_sys.cpu[i].addPrivateSplitL1Caches(MyCache(size = '32kB'), + if options.caches and not options.standard_switch: + test_sys.cpu[i].addPrivateSplitL1Caches(MyCache(size = '32kB'), MyCache(size = '64kB')) - server_sys.cpu[i].connectMemPorts(server_sys.membus) - server_sys.cpu[i].mem = server_sys.physmem + test_sys.cpu[i].connectMemPorts(test_sys.membus) + test_sys.cpu[i].mem = test_sys.physmem if len(bm) == 2: - client_sys = makeLinuxAlphaSystem(client_mem_mode, bm[1]) - client_sys.cpu = ClientCPUClass(cpu_id=0) - client_sys.cpu.connectMemPorts(client_sys.membus) - client_sys.cpu.mem = client_sys.physmem - root = makeDualRoot(server_sys, client_sys, options.etherdump) + drive_sys = makeLinuxAlphaSystem(drive_mem_mode, bm[1]) + drive_sys.cpu = DriveCPUClass(cpu_id=0) + drive_sys.cpu.connectMemPorts(drive_sys.membus) + drive_sys.cpu.mem = drive_sys.physmem + root = makeDualRoot(test_sys, drive_sys, options.etherdump) elif len(bm) == 1: - root = Root(clock = '1THz', system = server_sys) + root = Root(clock = '1THz', system = test_sys) else: print "Error I don't know how to create more than 2 systems." sys.exit(1) +if options.standard_switch: + switch_cpus = [TimingSimpleCPU(defer_registration=True, cpu_id=(np+i)) for i in xrange(np)] + switch_cpus1 = [DerivO3CPU(defer_registration=True, cpu_id=(2*np+i)) for i in xrange(np)] + for i in xrange(np): + switch_cpus[i].system = test_sys + switch_cpus1[i].system = test_sys + switch_cpus[i].clock = TestCPUClass.clock + switch_cpus1[i].clock = TestCPUClass.clock + if options.caches: + switch_cpus[i].addPrivateSplitL1Caches(MyCache(size = '32kB'), + MyCache(size = '64kB')) + + switch_cpus[i].mem = test_sys.physmem + switch_cpus1[i].mem = test_sys.physmem + switch_cpus[i].connectMemPorts(test_sys.membus) + root.switch_cpus = switch_cpus + root.switch_cpus1 = switch_cpus1 + switch_cpu_list = [(test_sys.cpu[i], switch_cpus[i]) for i in xrange(np)] + switch_cpu_list1 = [(switch_cpus[i], switch_cpus1[i]) for i in xrange(np)] + m5.instantiate(root) -if options.checkpoint: +if options.checkpoint_dir: + cptdir = options.checkpoint_dir +else: + cptdir = os.getcwd() + +if options.checkpoint_restore: from os.path import isdir from os import listdir, getcwd import re - if options.checkpoint_dir: - cptdir = options.checkpoint_dir - else: - cptdir = getcwd() if not isdir(cptdir): m5.panic("checkpoint dir %s does not exist!" % cptdir) @@ -149,10 +194,26 @@ if options.checkpoint: if match: cpts.append(match.group(1)) - if options.checkpoint > len(cpts): - m5.panic('Checkpoint %d not found' % options.checkpoint) + cpts.sort(lambda a,b: cmp(long(a), long(b))) - m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint - 1]])) + if options.checkpoint_restore > len(cpts): + m5.panic('Checkpoint %d not found' % options.checkpoint_restore) + + m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint_restore - 1]])) + +if options.standard_switch: + exit_event = m5.simulate(1000) + ## 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(test_sys) + m5.switchCpus(switch_cpu_list) + m5.resume(test_sys) + + exit_event = m5.simulate(500000000000) + m5.switchCpus(switch_cpu_list1) if options.maxtick: maxtick = options.maxtick @@ -163,17 +224,56 @@ elif options.maxtime: else: maxtick = -1 -exit_event = m5.simulate(maxtick) +num_checkpoints = 0 -while exit_event.getCause() == "checkpoint": - if options.checkpoint_dir: - m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"])) - else: - m5.checkpoint(root, "cpt.%d") +exit_cause = '' - if maxtick == -1: - exit_event = m5.simulate(maxtick) - else: - exit_event = m5.simulate(maxtick - m5.curTick()) +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() -print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause() +if exit_cause == '': + exit_cause = exit_event.getCause() +print 'Exiting @ cycle', m5.curTick(), 'because ', exit_cause |