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

--- 26 unchanged lines hidden (view full) ---

35from SysPaths import *
36from Benchmarks import *
37
38if not m5.build_env['FULL_SYSTEM']:
39 m5.panic("This script requires full-system mode (ALPHA_FS).")
40
41parser = optparse.OptionParser()
42
43parser.add_option("-d", "--detailed", action="store_true")
44parser.add_option("-t", "--timing", action="store_true")
45parser.add_option("-n", "--num_cpus", type="int", default=1)
46parser.add_option("--caches", action="store_true")
47parser.add_option("-m", "--maxtick", type="int")
48parser.add_option("--maxtime", type="float")
49parser.add_option("--dual", action="store_true",
50 help="Simulate two systems attached with an ethernet link")
51parser.add_option("-b", "--benchmark", action="store", type="string",
52 dest="benchmark",
53 help="Specify the benchmark to run. Available benchmarks: %s"\
54 % DefinedBenchmarks)
55parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
56 help="Specify the filename to dump a pcap capture of the" \
57 "ethernet traffic")
58parser.add_option("--checkpoint_dir", action="store", type="string",
59 help="Place all checkpoints in this absolute directory")
60parser.add_option("-c", "--checkpoint", action="store", type="int",
61 help="restore from checkpoint <N>")
62
63(options, args) = parser.parse_args()
64
65if args:
66 print "Error: script doesn't take any positional arguments"
67 sys.exit(1)
68
69class MyCache(BaseCache):
70 assoc = 2
71 block_size = 64
72 latency = 1
73 mshrs = 10
74 tgts_per_mshr = 5
75 protocol = CoherenceProtocol(protocol='moesi')
76
77# client system CPU is always simple... note this is an assignment of
78# a class, not an instance.
79ClientCPUClass = AtomicSimpleCPU
80client_mem_mode = 'atomic'
81
82if options.detailed:
83 ServerCPUClass = DerivO3CPU
84 server_mem_mode = 'timing'
85elif options.timing:
86 ServerCPUClass = TimingSimpleCPU
87 server_mem_mode = 'timing'
88else:
89 ServerCPUClass = AtomicSimpleCPU
90 server_mem_mode = 'atomic'
91
92ServerCPUClass.clock = '2GHz'
93ClientCPUClass.clock = '2GHz'
94
95if options.benchmark:
96 try:
97 bm = Benchmarks[options.benchmark]
98 except KeyError:
99 print "Error benchmark %s has not been defined." % options.benchmark
100 print "Valid benchmarks are: %s" % DefinedBenchmarks
101 sys.exit(1)
102else:
103 if options.dual:
104 bm = [SysConfig(), SysConfig()]
105 else:
106 bm = [SysConfig()]
107
108server_sys = makeLinuxAlphaSystem(server_mem_mode, bm[0])
109np = options.num_cpus
110server_sys.cpu = [ServerCPUClass(cpu_id=i) for i in xrange(np)]
111for i in xrange(np):
112 if options.caches:
113 server_sys.cpu[i].addPrivateSplitL1Caches(MyCache(size = '32kB'),
114 MyCache(size = '64kB'))
115 server_sys.cpu[i].connectMemPorts(server_sys.membus)
116 server_sys.cpu[i].mem = server_sys.physmem
117
118if len(bm) == 2:
119 client_sys = makeLinuxAlphaSystem(client_mem_mode, bm[1])
120 client_sys.cpu = ClientCPUClass(cpu_id=0)
121 client_sys.cpu.connectMemPorts(client_sys.membus)
122 client_sys.cpu.mem = client_sys.physmem
123 root = makeDualRoot(server_sys, client_sys, options.etherdump)
124elif len(bm) == 1:
125 root = Root(clock = '1THz', system = server_sys)
126else:
127 print "Error I don't know how to create more than 2 systems."
128 sys.exit(1)
129
130m5.instantiate(root)
131
132if options.checkpoint:
133 from os.path import isdir
134 from os import listdir, getcwd
135 import re
136 if options.checkpoint_dir:
137 cptdir = options.checkpoint_dir
138 else:
139 cptdir = getcwd()
140
141 if not isdir(cptdir):
142 m5.panic("checkpoint dir %s does not exist!" % cptdir)
143
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 if options.checkpoint > len(cpts):
153 m5.panic('Checkpoint %d not found' % options.checkpoint)
154
155 m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint - 1]]))
156
157if options.maxtick:
158 maxtick = options.maxtick
159elif options.maxtime:
160 simtime = int(options.maxtime * root.clock.value)
161 print "simulating for: ", simtime
162 maxtick = simtime
163else:
164 maxtick = -1
165
166exit_event = m5.simulate(maxtick)
167
168while exit_event.getCause() == "checkpoint":
169 if options.checkpoint_dir:
170 m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"]))
171 else:
172 m5.checkpoint(root, "cpt.%d")
173
174 if maxtick == -1:
175 exit_event = m5.simulate(maxtick)
176 else:
177 exit_event = m5.simulate(maxtick - m5.curTick())
178
179print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()