fs.py revision 3304:c5917aeb8e2f 
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("-m", "--maxtick", type="int")
46parser.add_option("--maxtime", type="float")
47parser.add_option("--dual", action="store_true",
48                  help="Simulate two systems attached with an ethernet link")
49parser.add_option("-b", "--benchmark", action="store", type="string",
50                  dest="benchmark",
51                  help="Specify the benchmark to run. Available benchmarks: %s"\
52                  % DefinedBenchmarks)
53parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
54                  help="Specify the filename to dump a pcap capture of the" \
55                  "ethernet traffic")
56parser.add_option("--checkpoint_dir", action="store", type="string",
57                  help="Place all checkpoints in this absolute directory")
58parser.add_option("-c", "--checkpoint", action="store", type="int",
59                  help="restore from checkpoint <N>")
60
61(options, args) = parser.parse_args()
62
63if args:
64    print "Error: script doesn't take any positional arguments"
65    sys.exit(1)
66
67# client system CPU is always simple... note this is an assignment of
68# a class, not an instance.
69ClientCPUClass = AtomicSimpleCPU
70client_mem_mode = 'atomic'
71
72if options.detailed:
73    ServerCPUClass = DerivO3CPU
74    server_mem_mode = 'timing'
75elif options.timing:
76    ServerCPUClass = TimingSimpleCPU
77    server_mem_mode = 'timing'
78else:
79    ServerCPUClass = AtomicSimpleCPU
80    server_mem_mode = 'atomic'
81
82ServerCPUClass.clock = '2GHz'
83ClientCPUClass.clock = '2GHz'
84
85if options.benchmark:
86    try:
87        bm = Benchmarks[options.benchmark]
88    except KeyError:
89        print "Error benchmark %s has not been defined." % options.benchmark
90        print "Valid benchmarks are: %s" % DefinedBenchmarks
91        sys.exit(1)
92else:
93    if options.dual:
94        bm = [SysConfig(), SysConfig()]
95    else:
96        bm = [SysConfig()]
97
98server_sys = makeLinuxAlphaSystem(server_mem_mode, bm[0])
99server_sys.cpu = ServerCPUClass(cpu_id=0)
100server_sys.cpu.connectMemPorts(server_sys.membus)
101server_sys.cpu.mem = server_sys.physmem
102
103if len(bm) == 2:
104    client_sys = makeLinuxAlphaSystem(client_mem_mode, bm[1])
105    client_sys.cpu = ClientCPUClass(cpu_id=0)
106    client_sys.cpu.connectMemPorts(client_sys.membus)
107    client_sys.cpu.mem = client_sys.physmem
108    root = makeDualRoot(server_sys, client_sys, options.etherdump)
109elif len(bm) == 1:
110    root = Root(clock = '1THz', system = server_sys)
111else:
112    print "Error I don't know how to create more than 2 systems."
113    sys.exit(1)
114
115m5.instantiate(root)
116
117if options.checkpoint:
118    from os.path import isdir
119    from os import listdir, getcwd
120    import re
121    if options.checkpoint_dir:
122        cptdir = options.checkpoint_dir
123    else:
124        cptdir = getcwd()
125
126    if not isdir(cptdir):
127        m5.panic("checkpoint dir %s does not exist!" % cptdir)
128
129    dirs = listdir(cptdir)
130    expr = re.compile('cpt.([0-9]*)')
131    cpts = []
132    for dir in dirs:
133        match = expr.match(dir)
134        if match:
135            cpts.append(match.group(1))
136
137    if options.checkpoint > len(cpts):
138        m5.panic('Checkpoint %d not found' % options.checkpoint)
139
140    m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint - 1]]))
141
142if options.maxtick:
143    maxtick = options.maxtick
144elif options.maxtime:
145    simtime = int(options.maxtime * root.clock.value)
146    print "simulating for: ", simtime
147    maxtick = simtime
148else:
149    maxtick = -1
150
151exit_event = m5.simulate(maxtick)
152
153while exit_event.getCause() == "checkpoint":
154    if options.checkpoint_dir:
155        m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"]))
156    else:
157        m5.checkpoint(root, "cpt.%d")
158
159    if maxtick == -1:
160        exit_event = m5.simulate(maxtick)
161    else:
162        exit_event = m5.simulate(maxtick - m5.curTick())
163
164print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()
165