fs.py revision 3312 
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
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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: Ali Saidi
28
29import optparse, os, sys
30
31import m5
32from m5.objects import *
33m5.AddToPath('../common')
34from FSConfig import *
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("-m", "--maxtick", type="int")
47parser.add_option("--maxtime", type="float")
48parser.add_option("--dual", action="store_true",
49                  help="Simulate two systems attached with an ethernet link")
50parser.add_option("-b", "--benchmark", action="store", type="string",
51                  dest="benchmark",
52                  help="Specify the benchmark to run. Available benchmarks: %s"\
53                  % DefinedBenchmarks)
54parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
55                  help="Specify the filename to dump a pcap capture of the" \
56                  "ethernet traffic")
57parser.add_option("--checkpoint_dir", action="store", type="string",
58                  help="Place all checkpoints in this absolute directory")
59parser.add_option("-c", "--checkpoint", action="store", type="int",
60                  help="restore from checkpoint <N>")
61
62(options, args) = parser.parse_args()
63
64if args:
65    print "Error: script doesn't take any positional arguments"
66    sys.exit(1)
67
68# client system CPU is always simple... note this is an assignment of
69# a class, not an instance.
70ClientCPUClass = AtomicSimpleCPU
71client_mem_mode = 'atomic'
72
73if options.detailed:
74    ServerCPUClass = DerivO3CPU
75    server_mem_mode = 'timing'
76elif options.timing:
77    ServerCPUClass = TimingSimpleCPU
78    server_mem_mode = 'timing'
79else:
80    ServerCPUClass = AtomicSimpleCPU
81    server_mem_mode = 'atomic'
82
83ServerCPUClass.clock = '2GHz'
84ClientCPUClass.clock = '2GHz'
85
86if options.benchmark:
87    try:
88        bm = Benchmarks[options.benchmark]
89    except KeyError:
90        print "Error benchmark %s has not been defined." % options.benchmark
91        print "Valid benchmarks are: %s" % DefinedBenchmarks
92        sys.exit(1)
93else:
94    if options.dual:
95        bm = [SysConfig(), SysConfig()]
96    else:
97        bm = [SysConfig()]
98
99server_sys = makeLinuxAlphaSystem(server_mem_mode, bm[0])
100np = options.num_cpus
101server_sys.cpu = [ServerCPUClass(cpu_id=i) for i in xrange(np)]
102for i in xrange(np):
103    server_sys.cpu[i].connectMemPorts(server_sys.membus)
104    server_sys.cpu[i].mem = server_sys.physmem
105
106if len(bm) == 2:
107    client_sys = makeLinuxAlphaSystem(client_mem_mode, bm[1])
108    client_sys.cpu = ClientCPUClass(cpu_id=0)
109    client_sys.cpu.connectMemPorts(client_sys.membus)
110    client_sys.cpu.mem = client_sys.physmem
111    root = makeDualRoot(server_sys, client_sys, options.etherdump)
112elif len(bm) == 1:
113    root = Root(clock = '1THz', system = server_sys)
114else:
115    print "Error I don't know how to create more than 2 systems."
116    sys.exit(1)
117
118m5.instantiate(root)
119
120if options.checkpoint:
121    from os.path import isdir
122    from os import listdir, getcwd
123    import re
124    if options.checkpoint_dir:
125        cptdir = options.checkpoint_dir
126    else:
127        cptdir = getcwd()
128
129    if not isdir(cptdir):
130        m5.panic("checkpoint dir %s does not exist!" % cptdir)
131
132    dirs = listdir(cptdir)
133    expr = re.compile('cpt.([0-9]*)')
134    cpts = []
135    for dir in dirs:
136        match = expr.match(dir)
137        if match:
138            cpts.append(match.group(1))
139
140    if options.checkpoint > len(cpts):
141        m5.panic('Checkpoint %d not found' % options.checkpoint)
142
143    m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint - 1]]))
144
145if options.maxtick:
146    maxtick = options.maxtick
147elif options.maxtime:
148    simtime = int(options.maxtime * root.clock.value)
149    print "simulating for: ", simtime
150    maxtick = simtime
151else:
152    maxtick = -1
153
154exit_event = m5.simulate(maxtick)
155
156while exit_event.getCause() == "checkpoint":
157    if options.checkpoint_dir:
158        m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"]))
159    else:
160        m5.checkpoint(root, "cpt.%d")
161
162    if maxtick == -1:
163        exit_event = m5.simulate(maxtick)
164    else:
165        exit_event = m5.simulate(maxtick - m5.curTick())
166
167print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()
168