2# All rights reserved
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Copyright (c) 2006-2008 The Regents of The University of Michigan
14# Copyright (c) 2010 Advanced Micro Devices, Inc.
15# All rights reserved.
16#
17# Redistribution and use in source and binary forms, with or without
18# modification, are permitted provided that the following conditions are
19# met: redistributions of source code must retain the above copyright
20# notice, this list of conditions and the following disclaimer;
21# redistributions in binary form must reproduce the above copyright
22# notice, this list of conditions and the following disclaimer in the
23# documentation and/or other materials provided with the distribution;
24# neither the name of the copyright holders nor the names of its
25# contributors may be used to endorse or promote products derived from
26# this software without specific prior written permission.
27#
28# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39#
40# Authors: Lisa Hsu
41
42import sys
43from os import getcwd
44from os.path import join as joinpath
45
46import CpuConfig
47import MemConfig
48
49import m5
50from m5.defines import buildEnv
51from m5.objects import *
52from m5.util import *
53
54addToPath('../common')
55
56def getCPUClass(cpu_type):
57 """Returns the required cpu class and the mode of operation."""
58 cls = CpuConfig.get(cpu_type)
59 return cls, cls.memory_mode()
60
61def setCPUClass(options):
62 """Returns two cpu classes and the initial mode of operation.
63
64 Restoring from a checkpoint or fast forwarding through a benchmark
65 can be done using one type of cpu, and then the actual
66 simulation can be carried out using another type. This function
67 returns these two types of cpus and the initial mode of operation
68 depending on the options provided.
69 """
70
71 TmpClass, test_mem_mode = getCPUClass(options.cpu_type)
72 CPUClass = None
73 if TmpClass.require_caches() and \
74 not options.caches and not options.ruby:
75 fatal("%s must be used with caches" % options.cpu_type)
76
77 if options.checkpoint_restore != None:
78 if options.restore_with_cpu != options.cpu_type:
79 CPUClass = TmpClass
80 TmpClass, test_mem_mode = getCPUClass(options.restore_with_cpu)
81 elif options.fast_forward:
82 CPUClass = TmpClass
83 TmpClass = AtomicSimpleCPU
84 test_mem_mode = 'atomic'
85
86 return (TmpClass, test_mem_mode, CPUClass)
87
88def setMemClass(options):
89 """Returns a memory controller class."""
90
91 return MemConfig.get(options.mem_type)
92
93def setWorkCountOptions(system, options):
94 if options.work_item_id != None:
95 system.work_item_id = options.work_item_id
96 if options.work_begin_cpu_id_exit != None:
97 system.work_begin_cpu_id_exit = options.work_begin_cpu_id_exit
98 if options.work_end_exit_count != None:
99 system.work_end_exit_count = options.work_end_exit_count
100 if options.work_end_checkpoint_count != None:
101 system.work_end_ckpt_count = options.work_end_checkpoint_count
102 if options.work_begin_exit_count != None:
103 system.work_begin_exit_count = options.work_begin_exit_count
104 if options.work_begin_checkpoint_count != None:
105 system.work_begin_ckpt_count = options.work_begin_checkpoint_count
106 if options.work_cpus_checkpoint_count != None:
107 system.work_cpus_ckpt_count = options.work_cpus_checkpoint_count
108
109def findCptDir(options, maxtick, cptdir, testsys):
110 """Figures out the directory from which the checkpointed state is read.
111
112 There are two different ways in which the directories holding checkpoints
113 can be named --
114 1. cpt.<benchmark name>.<instruction count when the checkpoint was taken>
115 2. cpt.<some number, usually the tick value when the checkpoint was taken>
116
117 This function parses through the options to figure out which one of the
118 above should be used for selecting the checkpoint, and then figures out
119 the appropriate directory.
120
121 It also sets the value of the maximum tick value till which the simulation
122 will run.
123 """
124
125 from os.path import isdir, exists
126 from os import listdir
127 import re
128
129 if not isdir(cptdir):
130 fatal("checkpoint dir %s does not exist!", cptdir)
131
132 if options.at_instruction or options.simpoint:
133 inst = options.checkpoint_restore
134 if options.simpoint:
135 # assume workload 0 has the simpoint
136 if testsys.cpu[0].workload[0].simpoint == 0:
137 fatal('Unable to find simpoint')
138 inst += int(testsys.cpu[0].workload[0].simpoint)
139
140 checkpoint_dir = joinpath(cptdir, "cpt.%s.%s" % (options.bench, inst))
141 if not exists(checkpoint_dir):
142 fatal("Unable to find checkpoint directory %s", checkpoint_dir)
143 else:
144 dirs = listdir(cptdir)
145 expr = re.compile('cpt\.([0-9]*)')
146 cpts = []
147 for dir in dirs:
148 match = expr.match(dir)
149 if match:
150 cpts.append(match.group(1))
151
152 cpts.sort(lambda a,b: cmp(long(a), long(b)))
153
154 cpt_num = options.checkpoint_restore
155 if cpt_num > len(cpts):
156 fatal('Checkpoint %d not found', cpt_num)
157
158 maxtick = maxtick - int(cpts[cpt_num - 1])
159 checkpoint_dir = joinpath(cptdir, "cpt.%s" % cpts[cpt_num - 1])
160
161 return maxtick, checkpoint_dir
162
163def scriptCheckpoints(options, maxtick, cptdir):
164 if options.at_instruction or options.simpoint:
165 checkpoint_inst = int(options.take_checkpoints)
166
167 # maintain correct offset if we restored from some instruction
168 if options.checkpoint_restore != None:
169 checkpoint_inst += options.checkpoint_restore
170
171 print "Creating checkpoint at inst:%d" % (checkpoint_inst)
172 exit_event = m5.simulate()
173 exit_cause = exit_event.getCause()
174 print "exit cause = %s" % exit_cause
175
176 # skip checkpoint instructions should they exist
177 while exit_cause == "checkpoint":
178 exit_event = m5.simulate()
179 exit_cause = exit_event.getCause()
180
181 if exit_cause == "a thread reached the max instruction count":
182 m5.checkpoint(joinpath(cptdir, "cpt.%s.%d" % \
183 (options.bench, checkpoint_inst)))
184 print "Checkpoint written."
185
186 else:
187 when, period = options.take_checkpoints.split(",", 1)
188 when = int(when)
189 period = int(period)
190 num_checkpoints = 0
191
192 exit_event = m5.simulate(when - m5.curTick())
193 exit_cause = exit_event.getCause()
194 while exit_cause == "checkpoint":
195 exit_event = m5.simulate(when - m5.curTick())
196 exit_cause = exit_event.getCause()
197
198 if exit_cause == "simulate() limit reached":
199 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
200 num_checkpoints += 1
201
202 sim_ticks = when
203 max_checkpoints = options.max_checkpoints
204
205 while num_checkpoints < max_checkpoints and \
206 exit_cause == "simulate() limit reached":
207 if (sim_ticks + period) > maxtick:
208 exit_event = m5.simulate(maxtick - sim_ticks)
209 exit_cause = exit_event.getCause()
210 break
211 else:
212 exit_event = m5.simulate(period)
213 exit_cause = exit_event.getCause()
214 sim_ticks += period
215 while exit_event.getCause() == "checkpoint":
216 exit_event = m5.simulate(sim_ticks - m5.curTick())
217 if exit_event.getCause() == "simulate() limit reached":
218 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
219 num_checkpoints += 1
220
221 return exit_event
222
223def benchCheckpoints(options, maxtick, cptdir):
224 exit_event = m5.simulate(maxtick - m5.curTick())
225 exit_cause = exit_event.getCause()
226
227 num_checkpoints = 0
228 max_checkpoints = options.max_checkpoints
229
230 while exit_cause == "checkpoint":
231 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
232 num_checkpoints += 1
233 if num_checkpoints == max_checkpoints:
234 exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
235 break
236
237 exit_event = m5.simulate(maxtick - m5.curTick())
238 exit_cause = exit_event.getCause()
239
240 return exit_event
241
242def repeatSwitch(testsys, repeat_switch_cpu_list, maxtick, switch_freq):
243 print "starting switch loop"
244 while True:
245 exit_event = m5.simulate(switch_freq)
246 exit_cause = exit_event.getCause()
247
248 if exit_cause != "simulate() limit reached":
249 return exit_event
250
251 m5.switchCpus(testsys, repeat_switch_cpu_list)
252
253 tmp_cpu_list = []
254 for old_cpu, new_cpu in repeat_switch_cpu_list:
255 tmp_cpu_list.append((new_cpu, old_cpu))
256 repeat_switch_cpu_list = tmp_cpu_list
257
258 if (maxtick - m5.curTick()) <= switch_freq:
259 exit_event = m5.simulate(maxtick - m5.curTick())
260 return exit_event
261
262def run(options, root, testsys, cpu_class):
263 if options.maxtick:
264 maxtick = options.maxtick
265 elif options.maxtime:
266 simtime = m5.ticks.seconds(simtime)
267 print "simulating for: ", simtime
268 maxtick = simtime
269 else:
270 maxtick = m5.MaxTick
271
272 if options.checkpoint_dir:
273 cptdir = options.checkpoint_dir
274 elif m5.options.outdir:
275 cptdir = m5.options.outdir
276 else:
277 cptdir = getcwd()
278
279 if options.fast_forward and options.checkpoint_restore != None:
280 fatal("Can't specify both --fast-forward and --checkpoint-restore")
281
282 if options.standard_switch and not options.caches:
283 fatal("Must specify --caches when using --standard-switch")
284
285 if options.standard_switch and options.repeat_switch:
286 fatal("Can't specify both --standard-switch and --repeat-switch")
287
288 if options.repeat_switch and options.take_checkpoints:
289 fatal("Can't specify both --repeat-switch and --take-checkpoints")
290
291 np = options.num_cpus
292 switch_cpus = None
293
294 if options.prog_interval:
295 for i in xrange(np):
296 testsys.cpu[i].progress_interval = options.prog_interval
297
298 if options.maxinsts:
299 for i in xrange(np):
300 testsys.cpu[i].max_insts_any_thread = options.maxinsts
301
302 if cpu_class:
303 switch_cpus = [cpu_class(switched_out=True, cpu_id=(i))
304 for i in xrange(np)]
305
306 for i in xrange(np):
307 if options.fast_forward:
308 testsys.cpu[i].max_insts_any_thread = int(options.fast_forward)
309 switch_cpus[i].system = testsys
310 switch_cpus[i].workload = testsys.cpu[i].workload
| 2# All rights reserved
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Copyright (c) 2006-2008 The Regents of The University of Michigan
14# Copyright (c) 2010 Advanced Micro Devices, Inc.
15# All rights reserved.
16#
17# Redistribution and use in source and binary forms, with or without
18# modification, are permitted provided that the following conditions are
19# met: redistributions of source code must retain the above copyright
20# notice, this list of conditions and the following disclaimer;
21# redistributions in binary form must reproduce the above copyright
22# notice, this list of conditions and the following disclaimer in the
23# documentation and/or other materials provided with the distribution;
24# neither the name of the copyright holders nor the names of its
25# contributors may be used to endorse or promote products derived from
26# this software without specific prior written permission.
27#
28# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39#
40# Authors: Lisa Hsu
41
42import sys
43from os import getcwd
44from os.path import join as joinpath
45
46import CpuConfig
47import MemConfig
48
49import m5
50from m5.defines import buildEnv
51from m5.objects import *
52from m5.util import *
53
54addToPath('../common')
55
56def getCPUClass(cpu_type):
57 """Returns the required cpu class and the mode of operation."""
58 cls = CpuConfig.get(cpu_type)
59 return cls, cls.memory_mode()
60
61def setCPUClass(options):
62 """Returns two cpu classes and the initial mode of operation.
63
64 Restoring from a checkpoint or fast forwarding through a benchmark
65 can be done using one type of cpu, and then the actual
66 simulation can be carried out using another type. This function
67 returns these two types of cpus and the initial mode of operation
68 depending on the options provided.
69 """
70
71 TmpClass, test_mem_mode = getCPUClass(options.cpu_type)
72 CPUClass = None
73 if TmpClass.require_caches() and \
74 not options.caches and not options.ruby:
75 fatal("%s must be used with caches" % options.cpu_type)
76
77 if options.checkpoint_restore != None:
78 if options.restore_with_cpu != options.cpu_type:
79 CPUClass = TmpClass
80 TmpClass, test_mem_mode = getCPUClass(options.restore_with_cpu)
81 elif options.fast_forward:
82 CPUClass = TmpClass
83 TmpClass = AtomicSimpleCPU
84 test_mem_mode = 'atomic'
85
86 return (TmpClass, test_mem_mode, CPUClass)
87
88def setMemClass(options):
89 """Returns a memory controller class."""
90
91 return MemConfig.get(options.mem_type)
92
93def setWorkCountOptions(system, options):
94 if options.work_item_id != None:
95 system.work_item_id = options.work_item_id
96 if options.work_begin_cpu_id_exit != None:
97 system.work_begin_cpu_id_exit = options.work_begin_cpu_id_exit
98 if options.work_end_exit_count != None:
99 system.work_end_exit_count = options.work_end_exit_count
100 if options.work_end_checkpoint_count != None:
101 system.work_end_ckpt_count = options.work_end_checkpoint_count
102 if options.work_begin_exit_count != None:
103 system.work_begin_exit_count = options.work_begin_exit_count
104 if options.work_begin_checkpoint_count != None:
105 system.work_begin_ckpt_count = options.work_begin_checkpoint_count
106 if options.work_cpus_checkpoint_count != None:
107 system.work_cpus_ckpt_count = options.work_cpus_checkpoint_count
108
109def findCptDir(options, maxtick, cptdir, testsys):
110 """Figures out the directory from which the checkpointed state is read.
111
112 There are two different ways in which the directories holding checkpoints
113 can be named --
114 1. cpt.<benchmark name>.<instruction count when the checkpoint was taken>
115 2. cpt.<some number, usually the tick value when the checkpoint was taken>
116
117 This function parses through the options to figure out which one of the
118 above should be used for selecting the checkpoint, and then figures out
119 the appropriate directory.
120
121 It also sets the value of the maximum tick value till which the simulation
122 will run.
123 """
124
125 from os.path import isdir, exists
126 from os import listdir
127 import re
128
129 if not isdir(cptdir):
130 fatal("checkpoint dir %s does not exist!", cptdir)
131
132 if options.at_instruction or options.simpoint:
133 inst = options.checkpoint_restore
134 if options.simpoint:
135 # assume workload 0 has the simpoint
136 if testsys.cpu[0].workload[0].simpoint == 0:
137 fatal('Unable to find simpoint')
138 inst += int(testsys.cpu[0].workload[0].simpoint)
139
140 checkpoint_dir = joinpath(cptdir, "cpt.%s.%s" % (options.bench, inst))
141 if not exists(checkpoint_dir):
142 fatal("Unable to find checkpoint directory %s", checkpoint_dir)
143 else:
144 dirs = listdir(cptdir)
145 expr = re.compile('cpt\.([0-9]*)')
146 cpts = []
147 for dir in dirs:
148 match = expr.match(dir)
149 if match:
150 cpts.append(match.group(1))
151
152 cpts.sort(lambda a,b: cmp(long(a), long(b)))
153
154 cpt_num = options.checkpoint_restore
155 if cpt_num > len(cpts):
156 fatal('Checkpoint %d not found', cpt_num)
157
158 maxtick = maxtick - int(cpts[cpt_num - 1])
159 checkpoint_dir = joinpath(cptdir, "cpt.%s" % cpts[cpt_num - 1])
160
161 return maxtick, checkpoint_dir
162
163def scriptCheckpoints(options, maxtick, cptdir):
164 if options.at_instruction or options.simpoint:
165 checkpoint_inst = int(options.take_checkpoints)
166
167 # maintain correct offset if we restored from some instruction
168 if options.checkpoint_restore != None:
169 checkpoint_inst += options.checkpoint_restore
170
171 print "Creating checkpoint at inst:%d" % (checkpoint_inst)
172 exit_event = m5.simulate()
173 exit_cause = exit_event.getCause()
174 print "exit cause = %s" % exit_cause
175
176 # skip checkpoint instructions should they exist
177 while exit_cause == "checkpoint":
178 exit_event = m5.simulate()
179 exit_cause = exit_event.getCause()
180
181 if exit_cause == "a thread reached the max instruction count":
182 m5.checkpoint(joinpath(cptdir, "cpt.%s.%d" % \
183 (options.bench, checkpoint_inst)))
184 print "Checkpoint written."
185
186 else:
187 when, period = options.take_checkpoints.split(",", 1)
188 when = int(when)
189 period = int(period)
190 num_checkpoints = 0
191
192 exit_event = m5.simulate(when - m5.curTick())
193 exit_cause = exit_event.getCause()
194 while exit_cause == "checkpoint":
195 exit_event = m5.simulate(when - m5.curTick())
196 exit_cause = exit_event.getCause()
197
198 if exit_cause == "simulate() limit reached":
199 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
200 num_checkpoints += 1
201
202 sim_ticks = when
203 max_checkpoints = options.max_checkpoints
204
205 while num_checkpoints < max_checkpoints and \
206 exit_cause == "simulate() limit reached":
207 if (sim_ticks + period) > maxtick:
208 exit_event = m5.simulate(maxtick - sim_ticks)
209 exit_cause = exit_event.getCause()
210 break
211 else:
212 exit_event = m5.simulate(period)
213 exit_cause = exit_event.getCause()
214 sim_ticks += period
215 while exit_event.getCause() == "checkpoint":
216 exit_event = m5.simulate(sim_ticks - m5.curTick())
217 if exit_event.getCause() == "simulate() limit reached":
218 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
219 num_checkpoints += 1
220
221 return exit_event
222
223def benchCheckpoints(options, maxtick, cptdir):
224 exit_event = m5.simulate(maxtick - m5.curTick())
225 exit_cause = exit_event.getCause()
226
227 num_checkpoints = 0
228 max_checkpoints = options.max_checkpoints
229
230 while exit_cause == "checkpoint":
231 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
232 num_checkpoints += 1
233 if num_checkpoints == max_checkpoints:
234 exit_cause = "maximum %d checkpoints dropped" % max_checkpoints
235 break
236
237 exit_event = m5.simulate(maxtick - m5.curTick())
238 exit_cause = exit_event.getCause()
239
240 return exit_event
241
242def repeatSwitch(testsys, repeat_switch_cpu_list, maxtick, switch_freq):
243 print "starting switch loop"
244 while True:
245 exit_event = m5.simulate(switch_freq)
246 exit_cause = exit_event.getCause()
247
248 if exit_cause != "simulate() limit reached":
249 return exit_event
250
251 m5.switchCpus(testsys, repeat_switch_cpu_list)
252
253 tmp_cpu_list = []
254 for old_cpu, new_cpu in repeat_switch_cpu_list:
255 tmp_cpu_list.append((new_cpu, old_cpu))
256 repeat_switch_cpu_list = tmp_cpu_list
257
258 if (maxtick - m5.curTick()) <= switch_freq:
259 exit_event = m5.simulate(maxtick - m5.curTick())
260 return exit_event
261
262def run(options, root, testsys, cpu_class):
263 if options.maxtick:
264 maxtick = options.maxtick
265 elif options.maxtime:
266 simtime = m5.ticks.seconds(simtime)
267 print "simulating for: ", simtime
268 maxtick = simtime
269 else:
270 maxtick = m5.MaxTick
271
272 if options.checkpoint_dir:
273 cptdir = options.checkpoint_dir
274 elif m5.options.outdir:
275 cptdir = m5.options.outdir
276 else:
277 cptdir = getcwd()
278
279 if options.fast_forward and options.checkpoint_restore != None:
280 fatal("Can't specify both --fast-forward and --checkpoint-restore")
281
282 if options.standard_switch and not options.caches:
283 fatal("Must specify --caches when using --standard-switch")
284
285 if options.standard_switch and options.repeat_switch:
286 fatal("Can't specify both --standard-switch and --repeat-switch")
287
288 if options.repeat_switch and options.take_checkpoints:
289 fatal("Can't specify both --repeat-switch and --take-checkpoints")
290
291 np = options.num_cpus
292 switch_cpus = None
293
294 if options.prog_interval:
295 for i in xrange(np):
296 testsys.cpu[i].progress_interval = options.prog_interval
297
298 if options.maxinsts:
299 for i in xrange(np):
300 testsys.cpu[i].max_insts_any_thread = options.maxinsts
301
302 if cpu_class:
303 switch_cpus = [cpu_class(switched_out=True, cpu_id=(i))
304 for i in xrange(np)]
305
306 for i in xrange(np):
307 if options.fast_forward:
308 testsys.cpu[i].max_insts_any_thread = int(options.fast_forward)
309 switch_cpus[i].system = testsys
310 switch_cpus[i].workload = testsys.cpu[i].workload
|
368
369 # if restoring, make atomic cpu simulate only a few instructions
370 if options.checkpoint_restore != None:
371 testsys.cpu[i].max_insts_any_thread = 1
372 # Fast forward to specified location if we are not restoring
373 elif options.fast_forward:
374 testsys.cpu[i].max_insts_any_thread = int(options.fast_forward)
375 # Fast forward to a simpoint (warning: time consuming)
376 elif options.simpoint:
377 if testsys.cpu[i].workload[0].simpoint == 0:
378 fatal('simpoint not found')
379 testsys.cpu[i].max_insts_any_thread = \
380 testsys.cpu[i].workload[0].simpoint
381 # No distance specified, just switch
382 else:
383 testsys.cpu[i].max_insts_any_thread = 1
384
385 # warmup period
386 if options.warmup_insts:
387 switch_cpus[i].max_insts_any_thread = options.warmup_insts
388
389 # simulation period
390 if options.maxinsts:
391 switch_cpus_1[i].max_insts_any_thread = options.maxinsts
392
393 # attach the checker cpu if selected
394 if options.checker:
395 switch_cpus[i].addCheckerCpu()
396 switch_cpus_1[i].addCheckerCpu()
397
398 testsys.switch_cpus = switch_cpus
399 testsys.switch_cpus_1 = switch_cpus_1
400 switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)]
401 switch_cpu_list1 = [(switch_cpus[i], switch_cpus_1[i]) for i in xrange(np)]
402
403 # set the checkpoint in the cpu before m5.instantiate is called
404 if options.take_checkpoints != None and \
405 (options.simpoint or options.at_instruction):
406 offset = int(options.take_checkpoints)
407 # Set an instruction break point
408 if options.simpoint:
409 for i in xrange(np):
410 if testsys.cpu[i].workload[0].simpoint == 0:
411 fatal('no simpoint for testsys.cpu[%d].workload[0]', i)
412 checkpoint_inst = int(testsys.cpu[i].workload[0].simpoint) + offset
413 testsys.cpu[i].max_insts_any_thread = checkpoint_inst
414 # used for output below
415 options.take_checkpoints = checkpoint_inst
416 else:
417 options.take_checkpoints = offset
418 # Set all test cpus with the right number of instructions
419 # for the upcoming simulation
420 for i in xrange(np):
421 testsys.cpu[i].max_insts_any_thread = offset
422
423 checkpoint_dir = None
424 if options.checkpoint_restore != None:
425 maxtick, checkpoint_dir = findCptDir(options, maxtick, cptdir, testsys)
426 m5.instantiate(checkpoint_dir)
427
428 if options.standard_switch or cpu_class:
429 if options.standard_switch:
430 print "Switch at instruction count:%s" % \
431 str(testsys.cpu[0].max_insts_any_thread)
432 exit_event = m5.simulate()
433 elif cpu_class and options.fast_forward:
434 print "Switch at instruction count:%s" % \
435 str(testsys.cpu[0].max_insts_any_thread)
436 exit_event = m5.simulate()
437 else:
438 print "Switch at curTick count:%s" % str(10000)
439 exit_event = m5.simulate(10000)
440 print "Switched CPUS @ tick %s" % (m5.curTick())
441
442 m5.switchCpus(testsys, switch_cpu_list)
443
444 if options.standard_switch:
445 print "Switch at instruction count:%d" % \
446 (testsys.switch_cpus[0].max_insts_any_thread)
447
448 #warmup instruction count may have already been set
449 if options.warmup_insts:
450 exit_event = m5.simulate()
451 else:
452 exit_event = m5.simulate(options.standard_switch)
453 print "Switching CPUS @ tick %s" % (m5.curTick())
454 print "Simulation ends instruction count:%d" % \
455 (testsys.switch_cpus_1[0].max_insts_any_thread)
456 m5.switchCpus(testsys, switch_cpu_list1)
457
458 # If we're taking and restoring checkpoints, use checkpoint_dir
459 # option only for finding the checkpoints to restore from. This
460 # lets us test checkpointing by restoring from one set of
461 # checkpoints, generating a second set, and then comparing them.
462 if options.take_checkpoints and options.checkpoint_restore:
463 if m5.options.outdir:
464 cptdir = m5.options.outdir
465 else:
466 cptdir = getcwd()
467
468 if options.take_checkpoints != None :
469 # Checkpoints being taken via the command line at <when> and at
470 # subsequent periods of <period>. Checkpoint instructions
471 # received from the benchmark running are ignored and skipped in
472 # favor of command line checkpoint instructions.
473 exit_event = scriptCheckpoints(options, maxtick, cptdir)
474 else:
475 if options.fast_forward:
476 m5.stats.reset()
477 print "**** REAL SIMULATION ****"
478
479 # If checkpoints are being taken, then the checkpoint instruction
480 # will occur in the benchmark code it self.
481 if options.repeat_switch and maxtick > options.repeat_switch:
482 exit_event = repeatSwitch(testsys, repeat_switch_cpu_list,
483 maxtick, options.repeat_switch)
484 else:
485 exit_event = benchCheckpoints(options, maxtick, cptdir)
486
487 print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_event.getCause())
488 if options.checkpoint_at_end:
489 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
490
491 if not m5.options.interactive:
492 sys.exit(exit_event.getCode())
| 368
369 # if restoring, make atomic cpu simulate only a few instructions
370 if options.checkpoint_restore != None:
371 testsys.cpu[i].max_insts_any_thread = 1
372 # Fast forward to specified location if we are not restoring
373 elif options.fast_forward:
374 testsys.cpu[i].max_insts_any_thread = int(options.fast_forward)
375 # Fast forward to a simpoint (warning: time consuming)
376 elif options.simpoint:
377 if testsys.cpu[i].workload[0].simpoint == 0:
378 fatal('simpoint not found')
379 testsys.cpu[i].max_insts_any_thread = \
380 testsys.cpu[i].workload[0].simpoint
381 # No distance specified, just switch
382 else:
383 testsys.cpu[i].max_insts_any_thread = 1
384
385 # warmup period
386 if options.warmup_insts:
387 switch_cpus[i].max_insts_any_thread = options.warmup_insts
388
389 # simulation period
390 if options.maxinsts:
391 switch_cpus_1[i].max_insts_any_thread = options.maxinsts
392
393 # attach the checker cpu if selected
394 if options.checker:
395 switch_cpus[i].addCheckerCpu()
396 switch_cpus_1[i].addCheckerCpu()
397
398 testsys.switch_cpus = switch_cpus
399 testsys.switch_cpus_1 = switch_cpus_1
400 switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)]
401 switch_cpu_list1 = [(switch_cpus[i], switch_cpus_1[i]) for i in xrange(np)]
402
403 # set the checkpoint in the cpu before m5.instantiate is called
404 if options.take_checkpoints != None and \
405 (options.simpoint or options.at_instruction):
406 offset = int(options.take_checkpoints)
407 # Set an instruction break point
408 if options.simpoint:
409 for i in xrange(np):
410 if testsys.cpu[i].workload[0].simpoint == 0:
411 fatal('no simpoint for testsys.cpu[%d].workload[0]', i)
412 checkpoint_inst = int(testsys.cpu[i].workload[0].simpoint) + offset
413 testsys.cpu[i].max_insts_any_thread = checkpoint_inst
414 # used for output below
415 options.take_checkpoints = checkpoint_inst
416 else:
417 options.take_checkpoints = offset
418 # Set all test cpus with the right number of instructions
419 # for the upcoming simulation
420 for i in xrange(np):
421 testsys.cpu[i].max_insts_any_thread = offset
422
423 checkpoint_dir = None
424 if options.checkpoint_restore != None:
425 maxtick, checkpoint_dir = findCptDir(options, maxtick, cptdir, testsys)
426 m5.instantiate(checkpoint_dir)
427
428 if options.standard_switch or cpu_class:
429 if options.standard_switch:
430 print "Switch at instruction count:%s" % \
431 str(testsys.cpu[0].max_insts_any_thread)
432 exit_event = m5.simulate()
433 elif cpu_class and options.fast_forward:
434 print "Switch at instruction count:%s" % \
435 str(testsys.cpu[0].max_insts_any_thread)
436 exit_event = m5.simulate()
437 else:
438 print "Switch at curTick count:%s" % str(10000)
439 exit_event = m5.simulate(10000)
440 print "Switched CPUS @ tick %s" % (m5.curTick())
441
442 m5.switchCpus(testsys, switch_cpu_list)
443
444 if options.standard_switch:
445 print "Switch at instruction count:%d" % \
446 (testsys.switch_cpus[0].max_insts_any_thread)
447
448 #warmup instruction count may have already been set
449 if options.warmup_insts:
450 exit_event = m5.simulate()
451 else:
452 exit_event = m5.simulate(options.standard_switch)
453 print "Switching CPUS @ tick %s" % (m5.curTick())
454 print "Simulation ends instruction count:%d" % \
455 (testsys.switch_cpus_1[0].max_insts_any_thread)
456 m5.switchCpus(testsys, switch_cpu_list1)
457
458 # If we're taking and restoring checkpoints, use checkpoint_dir
459 # option only for finding the checkpoints to restore from. This
460 # lets us test checkpointing by restoring from one set of
461 # checkpoints, generating a second set, and then comparing them.
462 if options.take_checkpoints and options.checkpoint_restore:
463 if m5.options.outdir:
464 cptdir = m5.options.outdir
465 else:
466 cptdir = getcwd()
467
468 if options.take_checkpoints != None :
469 # Checkpoints being taken via the command line at <when> and at
470 # subsequent periods of <period>. Checkpoint instructions
471 # received from the benchmark running are ignored and skipped in
472 # favor of command line checkpoint instructions.
473 exit_event = scriptCheckpoints(options, maxtick, cptdir)
474 else:
475 if options.fast_forward:
476 m5.stats.reset()
477 print "**** REAL SIMULATION ****"
478
479 # If checkpoints are being taken, then the checkpoint instruction
480 # will occur in the benchmark code it self.
481 if options.repeat_switch and maxtick > options.repeat_switch:
482 exit_event = repeatSwitch(testsys, repeat_switch_cpu_list,
483 maxtick, options.repeat_switch)
484 else:
485 exit_event = benchCheckpoints(options, maxtick, cptdir)
486
487 print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_event.getCause())
488 if options.checkpoint_at_end:
489 m5.checkpoint(joinpath(cptdir, "cpt.%d"))
490
491 if not m5.options.interactive:
492 sys.exit(exit_event.getCode())
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