if options.timing:
- cpu = TimingSimpleCPU()
+ CPUClass = TimingSimpleCPU
+ test_mem_mode = 'timing'
elif options.detailed:
- cpu = DerivO3CPU()
+ CPUClass = DerivO3CPU
+ test_mem_mode = 'timing'
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.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.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
+ CPUClass = AtomicSimpleCPU
+ test_mem_mode = 'atomic'
- if not isdir(cptdir):
- m5.panic("checkpoint dir %s does not exist!" % cptdir)
+CPUClass.clock = '2GHz'
- 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))
+np = options.num_cpus
- 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())
+system = System(cpu = [CPUClass(cpu_id=i) for i in xrange(np)],
+ physmem = PhysicalMemory(range=AddrRange("512MB")),
+ membus = Bus(), mem_mode = test_mem_mode)
- exit_cause = exit_event.getCause()
+system.physmem.port = system.membus.port
-if exit_cause == '':
- exit_cause = exit_event.getCause()
-print 'Exiting @ cycle', m5.curTick(), 'because ', exit_cause
+for i in xrange(np):
+ if options.caches and not options.standard_switch:
+ system.cpu[i].addPrivateSplitL1Caches(L1Cache(size = '32kB'),
+ L1Cache(size = '64kB'))
+ system.cpu[i].connectMemPorts(system.membus)
- system.cpu[i].mem = system.physmem
+ system.cpu[i].workload = process
+root = Root(system = system)
+Simulation.run(options, root, system)