1# Copyright (c) 2005 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
--- 13 unchanged lines hidden (view full) ---
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28# Steve Reinhardt
29
30import atexit
31import os
32import sys
33
34# import the SWIG-wrapped main C++ functions
35import internal
36# import a few SWIG-wrapped items (those that are likely to be used
37# directly by user scripts) completely into this module for
38# convenience
39from internal.event import SimLoopExitEvent
40
41# import the m5 compile options
42import defines
43
44# define a MaxTick parameter
45MaxTick = 2**63 - 1
46
47# define this here so we can use it right away if necessary
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82def instantiate(root):
83 params.ticks_per_sec = float(root.clock.frequency)
84 root.unproxy_all()
85 # ugly temporary hack to get output to config.ini
86 sys.stdout = file(os.path.join(options.outdir, 'config.ini'), 'w')
87 root.print_ini()
88 sys.stdout.close() # close config.ini
89 sys.stdout = sys.__stdout__ # restore to original
90
91 # load config.ini into C++
92 internal.core.loadIniFile(resolveSimObject)
93
94 # Initialize the global statistics
95 internal.stats.initSimStats()
96
97 root.createCCObject()
98 root.connectPorts()
99
100 # Do a second pass to finish initializing the sim objects
101 internal.sim_object.initAll()
102
103 # Do a third pass to initialize statistics
104 internal.sim_object.regAllStats()
105
106 # Check to make sure that the stats package is properly initialized
107 internal.stats.check()
108
109 # Reset to put the stats in a consistent state.
110 internal.stats.reset()
111
112def doDot(root):
113 dot = pydot.Dot()
114 instance.outputDot(dot)
115 dot.orientation = "portrait"
116 dot.size = "8.5,11"
117 dot.ranksep="equally"
118 dot.rank="samerank"
119 dot.write("config.dot")
120 dot.write_ps("config.ps")
121
122need_resume = []
123need_startup = True
124def simulate(*args, **kwargs):
125 global need_resume, need_startup
126
127 if need_startup:
128 internal.core.SimStartup()
129 need_startup = False
130
131 for root in need_resume:
132 resume(root)
133 need_resume = []
134
135 return internal.event.simulate(*args, **kwargs)
136
137# Export curTick to user script.
138def curTick():
139 return internal.event.cvar.curTick
140
141# register our C++ exit callback function with Python
142atexit.register(internal.core.doExitCleanup)
143atexit.register(internal.stats.dump)
144
145# This loops until all objects have been fully drained.
146def doDrain(root):
147 all_drained = drain(root)
148 while (not all_drained):
149 all_drained = drain(root)
150
151# Tries to drain all objects. Draining might not be completed unless
152# all objects return that they are drained on the first call. This is
153# because as objects drain they may cause other objects to no longer
154# be drained.
155def drain(root):
156 all_drained = False
157 drain_event = internal.event.createCountedDrain()
158 unready_objects = root.startDrain(drain_event, True)
159 # If we've got some objects that can't drain immediately, then simulate
160 if unready_objects > 0:
161 drain_event.setCount(unready_objects)
162 simulate()
163 else:
164 all_drained = True
165 internal.event.cleanupCountedDrain(drain_event)
166 return all_drained
167
168def resume(root):
169 root.resume()
170
171def checkpoint(root, dir):
172 if not isinstance(root, objects.Root):
173 raise TypeError, "Checkpoint must be called on a root object."
174 doDrain(root)
175 print "Writing checkpoint"
176 internal.sim_object.serializeAll(dir)
177 resume(root)
178
179def restoreCheckpoint(root, dir):
180 print "Restoring from checkpoint"
181 internal.sim_object.unserializeAll(dir)
182 need_resume.append(root)
183
184def changeToAtomic(system):
185 if not isinstance(system, objects.Root) and not isinstance(system, objects.System):
186 raise TypeError, "Object is not a root or system object. Checkpoint must be "
187 "called on a root object."
188 doDrain(system)
189 print "Changing memory mode to atomic"
190 system.changeTiming(internal.sim_object.SimObject.Atomic)
191
192def changeToTiming(system):
193 if not isinstance(system, objects.Root) and not isinstance(system, objects.System):
194 raise TypeError, "Object is not a root or system object. Checkpoint must be "
195 "called on a root object."
196 doDrain(system)
197 print "Changing memory mode to timing"
198 system.changeTiming(internal.sim_object.SimObject.Timing)
199
200def switchCpus(cpuList):
201 print "switching cpus"
202 if not isinstance(cpuList, list):
203 raise RuntimeError, "Must pass a list to this function"
204 for i in cpuList:
205 if not isinstance(i, tuple):
206 raise RuntimeError, "List must have tuples of (oldCPU,newCPU)"
207
208 [old_cpus, new_cpus] = zip(*cpuList)
209
210 for cpu in old_cpus:
211 if not isinstance(cpu, objects.BaseCPU):
212 raise TypeError, "%s is not of type BaseCPU" % cpu
213 for cpu in new_cpus:
214 if not isinstance(cpu, objects.BaseCPU):
215 raise TypeError, "%s is not of type BaseCPU" % cpu
216
217 # Drain all of the individual CPUs
218 drain_event = internal.event.createCountedDrain()
219 unready_cpus = 0
220 for old_cpu in old_cpus:
221 unready_cpus += old_cpu.startDrain(drain_event, False)
222 # If we've got some objects that can't drain immediately, then simulate
223 if unready_cpus > 0:
224 drain_event.setCount(unready_cpus)
225 simulate()
226 internal.event.cleanupCountedDrain(drain_event)
227 # Now all of the CPUs are ready to be switched out
228 for old_cpu in old_cpus:
229 old_cpu._ccObject.switchOut()
230 index = 0
231 for new_cpu in new_cpus:
232 new_cpu.takeOverFrom(old_cpus[index])
233 new_cpu._ccObject.resume()
234 index += 1
235
236def dumpStats():
237 print 'Dumping stats'
238 internal.stats.dump()
239
240def resetStats():
241 print 'Resetting stats'
242 internal.stats.reset()
243
244# Since we have so many mutual imports in this package, we should:
245# 1. Put all intra-package imports at the *bottom* of the file, unless
246# they're absolutely needed before that (for top-level statements
247# or class attributes). Imports of "trivial" packages that don't
248# import other packages (e.g., 'smartdict') can be at the top.
249# 2. Never use 'from foo import *' on an intra-package import since
250# you can get the wrong result if foo is only partially imported
251# at the point you do that (i.e., because foo is in the middle of
252# importing *you*).
253from main import options
254import objects
255import params
256from SimObject import resolveSimObject
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
--- 13 unchanged lines hidden (view full) ---
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28# Steve Reinhardt
29
30import atexit
31import os
32import sys
33
34# import the SWIG-wrapped main C++ functions
35import internal
36# import a few SWIG-wrapped items (those that are likely to be used
37# directly by user scripts) completely into this module for
38# convenience
39from internal.event import SimLoopExitEvent
40
41# import the m5 compile options
42import defines
43
44# define a MaxTick parameter
45MaxTick = 2**63 - 1
46
47# define this here so we can use it right away if necessary
--- 34 unchanged lines hidden (view full) ---
82def instantiate(root):
83 params.ticks_per_sec = float(root.clock.frequency)
84 root.unproxy_all()
85 # ugly temporary hack to get output to config.ini
86 sys.stdout = file(os.path.join(options.outdir, 'config.ini'), 'w')
87 root.print_ini()
88 sys.stdout.close() # close config.ini
89 sys.stdout = sys.__stdout__ # restore to original
90
91 # load config.ini into C++
92 internal.core.loadIniFile(resolveSimObject)
93
94 # Initialize the global statistics
95 internal.stats.initSimStats()
96
97 root.createCCObject()
98 root.connectPorts()
99
100 # Do a second pass to finish initializing the sim objects
101 internal.sim_object.initAll()
102
103 # Do a third pass to initialize statistics
104 internal.sim_object.regAllStats()
105
106 # Check to make sure that the stats package is properly initialized
107 internal.stats.check()
108
109 # Reset to put the stats in a consistent state.
110 internal.stats.reset()
111
112def doDot(root):
113 dot = pydot.Dot()
114 instance.outputDot(dot)
115 dot.orientation = "portrait"
116 dot.size = "8.5,11"
117 dot.ranksep="equally"
118 dot.rank="samerank"
119 dot.write("config.dot")
120 dot.write_ps("config.ps")
121
122need_resume = []
123need_startup = True
124def simulate(*args, **kwargs):
125 global need_resume, need_startup
126
127 if need_startup:
128 internal.core.SimStartup()
129 need_startup = False
130
131 for root in need_resume:
132 resume(root)
133 need_resume = []
134
135 return internal.event.simulate(*args, **kwargs)
136
137# Export curTick to user script.
138def curTick():
139 return internal.event.cvar.curTick
140
141# register our C++ exit callback function with Python
142atexit.register(internal.core.doExitCleanup)
143atexit.register(internal.stats.dump)
144
145# This loops until all objects have been fully drained.
146def doDrain(root):
147 all_drained = drain(root)
148 while (not all_drained):
149 all_drained = drain(root)
150
151# Tries to drain all objects. Draining might not be completed unless
152# all objects return that they are drained on the first call. This is
153# because as objects drain they may cause other objects to no longer
154# be drained.
155def drain(root):
156 all_drained = False
157 drain_event = internal.event.createCountedDrain()
158 unready_objects = root.startDrain(drain_event, True)
159 # If we've got some objects that can't drain immediately, then simulate
160 if unready_objects > 0:
161 drain_event.setCount(unready_objects)
162 simulate()
163 else:
164 all_drained = True
165 internal.event.cleanupCountedDrain(drain_event)
166 return all_drained
167
168def resume(root):
169 root.resume()
170
171def checkpoint(root, dir):
172 if not isinstance(root, objects.Root):
173 raise TypeError, "Checkpoint must be called on a root object."
174 doDrain(root)
175 print "Writing checkpoint"
176 internal.sim_object.serializeAll(dir)
177 resume(root)
178
179def restoreCheckpoint(root, dir):
180 print "Restoring from checkpoint"
181 internal.sim_object.unserializeAll(dir)
182 need_resume.append(root)
183
184def changeToAtomic(system):
185 if not isinstance(system, objects.Root) and not isinstance(system, objects.System):
186 raise TypeError, "Object is not a root or system object. Checkpoint must be "
187 "called on a root object."
188 doDrain(system)
189 print "Changing memory mode to atomic"
190 system.changeTiming(internal.sim_object.SimObject.Atomic)
191
192def changeToTiming(system):
193 if not isinstance(system, objects.Root) and not isinstance(system, objects.System):
194 raise TypeError, "Object is not a root or system object. Checkpoint must be "
195 "called on a root object."
196 doDrain(system)
197 print "Changing memory mode to timing"
198 system.changeTiming(internal.sim_object.SimObject.Timing)
199
200def switchCpus(cpuList):
201 print "switching cpus"
202 if not isinstance(cpuList, list):
203 raise RuntimeError, "Must pass a list to this function"
204 for i in cpuList:
205 if not isinstance(i, tuple):
206 raise RuntimeError, "List must have tuples of (oldCPU,newCPU)"
207
208 [old_cpus, new_cpus] = zip(*cpuList)
209
210 for cpu in old_cpus:
211 if not isinstance(cpu, objects.BaseCPU):
212 raise TypeError, "%s is not of type BaseCPU" % cpu
213 for cpu in new_cpus:
214 if not isinstance(cpu, objects.BaseCPU):
215 raise TypeError, "%s is not of type BaseCPU" % cpu
216
217 # Drain all of the individual CPUs
218 drain_event = internal.event.createCountedDrain()
219 unready_cpus = 0
220 for old_cpu in old_cpus:
221 unready_cpus += old_cpu.startDrain(drain_event, False)
222 # If we've got some objects that can't drain immediately, then simulate
223 if unready_cpus > 0:
224 drain_event.setCount(unready_cpus)
225 simulate()
226 internal.event.cleanupCountedDrain(drain_event)
227 # Now all of the CPUs are ready to be switched out
228 for old_cpu in old_cpus:
229 old_cpu._ccObject.switchOut()
230 index = 0
231 for new_cpu in new_cpus:
232 new_cpu.takeOverFrom(old_cpus[index])
233 new_cpu._ccObject.resume()
234 index += 1
235
236def dumpStats():
237 print 'Dumping stats'
238 internal.stats.dump()
239
240def resetStats():
241 print 'Resetting stats'
242 internal.stats.reset()
243
244# Since we have so many mutual imports in this package, we should:
245# 1. Put all intra-package imports at the *bottom* of the file, unless
246# they're absolutely needed before that (for top-level statements
247# or class attributes). Imports of "trivial" packages that don't
248# import other packages (e.g., 'smartdict') can be at the top.
249# 2. Never use 'from foo import *' on an intra-package import since
250# you can get the wrong result if foo is only partially imported
251# at the point you do that (i.e., because foo is in the middle of
252# importing *you*).
253from main import options
254import objects
255import params
256from SimObject import resolveSimObject