se.py (3395:49e674f2fb5d) se.py (3399:8206f6b9283e)
1# Copyright (c) 2006 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

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29# Simple test script
30#
31# "m5 test.py"
32
33import m5
34from m5.objects import *
35import os, optparse, sys
36m5.AddToPath('../common')
1# Copyright (c) 2006 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

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29# Simple test script
30#
31# "m5 test.py"
32
33import m5
34from m5.objects import *
35import os, optparse, sys
36m5.AddToPath('../common')
37import Simulation
38
39parser = optparse.OptionParser()
40
41# Benchmark options
42parser.add_option("-c", "--cmd",
43 default="../../tests/test-progs/hello/bin/alpha/linux/hello",
44 help="The binary to run in syscall emulation mode.")
45parser.add_option("-o", "--options", default="",
46 help="The options to pass to the binary, use \" \" around the entire\
47 string.")
48parser.add_option("-i", "--input", default="",
49 help="A file of input to give to the binary.")
50
37
38parser = optparse.OptionParser()
39
40# Benchmark options
41parser.add_option("-c", "--cmd",
42 default="../../tests/test-progs/hello/bin/alpha/linux/hello",
43 help="The binary to run in syscall emulation mode.")
44parser.add_option("-o", "--options", default="",
45 help="The options to pass to the binary, use \" \" around the entire\
46 string.")
47parser.add_option("-i", "--input", default="",
48 help="A file of input to give to the binary.")
49
51execfile("Options.py")
50# System options
51parser.add_option("-d", "--detailed", action="store_true")
52parser.add_option("-t", "--timing", action="store_true")
53parser.add_option("--caches", action="store_true")
52
54
55# Run duration options
56parser.add_option("-m", "--maxtick", type="int")
57parser.add_option("--maxtime", type="float")
58
59#Checkpointing options
60###Note that performing checkpointing via python script files will override
61###checkpoint instructions built into binaries.
62parser.add_option("--take_checkpoints", action="store", type="string",
63 help="<M,N> will take checkpoint at cycle M and every N cycles \
64 thereafter")
65parser.add_option("--max_checkpoints", action="store", type="int",
66 help="the maximum number of checkpoints to drop",
67 default=5)
68parser.add_option("--checkpoint_dir", action="store", type="string",
69 help="Place all checkpoints in this absolute directory")
70parser.add_option("-r", "--checkpoint_restore", action="store", type="int",
71 help="restore from checkpoint <N>")
72
73#CPU Switching - default switch model generally goes from a checkpoint
74#to a timing simple CPU with caches to warm up, then to detailed CPU for
75#data measurement
76parser.add_option("-s", "--standard_switch", action="store_true",
77 help="switch from one cpu mode to another")
78
53(options, args) = parser.parse_args()
54
55if args:
56 print "Error: script doesn't take any positional arguments"
57 sys.exit(1)
58
79(options, args) = parser.parse_args()
80
81if args:
82 print "Error: script doesn't take any positional arguments"
83 sys.exit(1)
84
85class MyCache(BaseCache):
86 assoc = 2
87 block_size = 64
88 latency = 1
89 mshrs = 10
90 tgts_per_mshr = 5
91
59process = LiveProcess()
60process.executable = options.cmd
61process.cmd = options.cmd + " " + options.options
62if options.input != "":
63 process.input = options.input
64
65if options.detailed:
66 #check for SMT workload

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79 smt_process.cmd = wrkld + " " + options.options
80 if inputs and inputs[smt_idx]:
81 smt_process.input = inputs[smt_idx]
82 process += [smt_process, ]
83 smt_idx += 1
84
85
86if options.timing:
92process = LiveProcess()
93process.executable = options.cmd
94process.cmd = options.cmd + " " + options.options
95if options.input != "":
96 process.input = options.input
97
98if options.detailed:
99 #check for SMT workload

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112 smt_process.cmd = wrkld + " " + options.options
113 if inputs and inputs[smt_idx]:
114 smt_process.input = inputs[smt_idx]
115 process += [smt_process, ]
116 smt_idx += 1
117
118
119if options.timing:
87 CPUClass = TimingSimpleCPU
88 test_mem_mode = 'timing'
120 cpu = TimingSimpleCPU()
89elif options.detailed:
121elif options.detailed:
90 CPUClass = DerivO3CPU
91 test_mem_mode = 'timing'
122 cpu = DerivO3CPU()
92else:
123else:
93 CPUClass = AtomicSimpleCPU
94 test_mem_mode = 'atomic'
124 cpu = AtomicSimpleCPU()
95
125
96CPUClass.clock = '2GHz'
126cpu.workload = process
127cpu.cpu_id = 0
97
128
98np = options.num_cpus
99
100system = System(cpu = [CPUClass(cpu_id=i) for i in xrange(np)],
129system = System(cpu = cpu,
101 physmem = PhysicalMemory(range=AddrRange("512MB")),
130 physmem = PhysicalMemory(range=AddrRange("512MB")),
102 membus = Bus(), mem_mode = test_mem_mode)
131 membus = Bus())
103
132
133if options.caches and not options.standard_switch:
134 system.cpu.addPrivateSplitL1Caches(MyCache(size = '32kB'),
135 MyCache(size = '64kB'))
136
104system.physmem.port = system.membus.port
137system.physmem.port = system.membus.port
138system.cpu.connectMemPorts(system.membus)
139system.cpu.mem = system.physmem
140system.cpu.clock = '2GHz'
141root = Root(system = system)
105
142
106for i in xrange(np):
107 if options.caches and not options.standard_switch:
108 system.cpu[i].addPrivateSplitL1Caches(L1Cache(size = '32kB'),
109 L2Cache(size = '64kB'))
110 system.cpu[i].connectMemPorts(system.membus)
111 system.cpu[i].mem = system.physmem
112 system.cpu[i].workload = process
143if options.timing or options.detailed:
144 root.system.mem_mode = 'timing'
113
145
114root = Root(system = system)
146if options.standard_switch:
147 switch_cpu = TimingSimpleCPU(defer_registration=True, cpu_id=1)
148 switch_cpu1 = DerivO3CPU(defer_registration=True, cpu_id=2)
149 switch_cpu.system = system
150 switch_cpu1.system = system
151 switch_cpu.clock = cpu.clock
152 switch_cpu1.clock = cpu.clock
153 if options.caches:
154 switch_cpu.addPrivateSplitL1Caches(MyCache(size = '32kB'),
155 MyCache(size = '64kB'))
115
156
116Simulation.run(options, root, system)
157 switch_cpu.workload = process
158 switch_cpu1.workload = process
159 switch_cpu.mem = system.physmem
160 switch_cpu1.mem = system.physmem
161 switch_cpu.connectMemPorts(system.membus)
162 root.switch_cpu = switch_cpu
163 root.switch_cpu1 = switch_cpu1
164 switch_cpu_list = [(system.cpu, switch_cpu)]
165 switch_cpu_list1 = [(switch_cpu, switch_cpu1)]
166
167# instantiate configuration
168m5.instantiate(root)
169
170if options.checkpoint_dir:
171 cptdir = options.checkpoint_dir
172else:
173 cptdir = os.getcwd()
174
175if options.checkpoint_restore:
176 from os.path import isdir
177 from os import listdir, getcwd
178 import re
179
180 if not isdir(cptdir):
181 m5.panic("checkpoint dir %s does not exist!" % cptdir)
182
183 dirs = listdir(cptdir)
184 expr = re.compile('cpt.([0-9]*)')
185 cpts = []
186 for dir in dirs:
187 match = expr.match(dir)
188 if match:
189 cpts.append(match.group(1))
190
191 cpts.sort(lambda a,b: cmp(long(a), long(b)))
192
193 if options.checkpoint_restore > len(cpts):
194 m5.panic('Checkpoint %d not found' % options.checkpoint_restore)
195
196 print "restoring checkpoint from ","/".join([cptdir, "cpt.%s" % cpts[options.checkpoint_restore - 1]])
197 m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint_restore - 1]]))
198
199if options.standard_switch:
200 exit_event = m5.simulate(10000)
201 ## when you change to Timing (or Atomic), you halt the system given
202 ## as argument. When you are finished with the system changes
203 ## (including switchCpus), you must resume the system manually.
204 ## You DON'T need to resume after just switching CPUs if you haven't
205 ## changed anything on the system level.
206 m5.changeToTiming(system)
207 m5.switchCpus(switch_cpu_list)
208 m5.resume(system)
209
210 exit_event = m5.simulate(500000000000)
211 m5.switchCpus(switch_cpu_list1)
212
213if options.maxtick:
214 maxtick = options.maxtick
215elif options.maxtime:
216 simtime = int(options.maxtime * root.clock.value)
217 print "simulating for: ", simtime
218 maxtick = simtime
219else:
220 maxtick = -1
221
222num_checkpoints = 0
223
224exit_cause = ''
225
226if options.take_checkpoints:
227 [when, period] = options.take_checkpoints.split(",", 1)
228 when = int(when)
229 period = int(period)
230
231 exit_event = m5.simulate(when)
232 while exit_event.getCause() == "checkpoint":
233 exit_event = m5.simulate(when - m5.curTick())
234
235 if exit_event.getCause() == "simulate() limit reached":
236 m5.checkpoint(root, cptdir + "cpt.%d")
237 num_checkpoints += 1
238
239 sim_ticks = when
240 exit_cause = "maximum %d checkpoints dropped" % options.max_checkpoints
241 while num_checkpoints < options.max_checkpoints:
242 if (sim_ticks + period) > maxtick and maxtick != -1:
243 exit_event = m5.simulate(maxtick - sim_ticks)
244 exit_cause = exit_event.getCause()
245 break
246 else:
247 exit_event = m5.simulate(period)
248 sim_ticks += period
249 while exit_event.getCause() == "checkpoint":
250 exit_event = m5.simulate(period - m5.curTick())
251 if exit_event.getCause() == "simulate() limit reached":
252 m5.checkpoint(root, cptdir + "cpt.%d")
253 num_checkpoints += 1
254
255else: #no checkpoints being taken via this script
256 exit_event = m5.simulate(maxtick)
257
258 while exit_event.getCause() == "checkpoint":
259 m5.checkpoint(root, cptdir + "cpt.%d")
260 num_checkpoints += 1
261 if num_checkpoints == options.max_checkpoints:
262 exit_cause = "maximum %d checkpoints dropped" % options.max_checkpoints
263 break
264
265 if maxtick == -1:
266 exit_event = m5.simulate(maxtick)
267 else:
268 exit_event = m5.simulate(maxtick - m5.curTick())
269
270 exit_cause = exit_event.getCause()
271
272if exit_cause == '':
273 exit_cause = exit_event.getCause()
274print 'Exiting @ cycle', m5.curTick(), 'because ', exit_cause
275
276