fs.py revision 3314:1247da7b4d26 
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("--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
76# client system CPU is always simple... note this is an assignment of
77# a class, not an instance.
78ClientCPUClass = AtomicSimpleCPU
79client_mem_mode = 'atomic'
80
81if options.detailed:
82    ServerCPUClass = DerivO3CPU
83    server_mem_mode = 'timing'
84elif options.timing:
85    ServerCPUClass = TimingSimpleCPU
86    server_mem_mode = 'timing'
87else:
88    ServerCPUClass = AtomicSimpleCPU
89    server_mem_mode = 'atomic'
90
91ServerCPUClass.clock = '2GHz'
92ClientCPUClass.clock = '2GHz'
93
94if options.benchmark:
95    try:
96        bm = Benchmarks[options.benchmark]
97    except KeyError:
98        print "Error benchmark %s has not been defined." % options.benchmark
99        print "Valid benchmarks are: %s" % DefinedBenchmarks
100        sys.exit(1)
101else:
102    if options.dual:
103        bm = [SysConfig(), SysConfig()]
104    else:
105        bm = [SysConfig()]
106
107server_sys = makeLinuxAlphaSystem(server_mem_mode, bm[0])
108np = options.num_cpus
109server_sys.cpu = [ServerCPUClass(cpu_id=i) for i in xrange(np)]
110for i in xrange(np):
111    if options.caches:
112        server_sys.cpu[i].addPrivateSplitL1Caches(MyCache(size = '32kB'),
113                                                  MyCache(size = '64kB'))
114    server_sys.cpu[i].connectMemPorts(server_sys.membus)
115    server_sys.cpu[i].mem = server_sys.physmem
116
117if len(bm) == 2:
118    client_sys = makeLinuxAlphaSystem(client_mem_mode, bm[1])
119    client_sys.cpu = ClientCPUClass(cpu_id=0)
120    client_sys.cpu.connectMemPorts(client_sys.membus)
121    client_sys.cpu.mem = client_sys.physmem
122    root = makeDualRoot(server_sys, client_sys, options.etherdump)
123elif len(bm) == 1:
124    root = Root(clock = '1THz', system = server_sys)
125else:
126    print "Error I don't know how to create more than 2 systems."
127    sys.exit(1)
128
129m5.instantiate(root)
130
131if options.checkpoint:
132    from os.path import isdir
133    from os import listdir, getcwd
134    import re
135    if options.checkpoint_dir:
136        cptdir = options.checkpoint_dir
137    else:
138        cptdir = getcwd()
139
140    if not isdir(cptdir):
141        m5.panic("checkpoint dir %s does not exist!" % cptdir)
142
143    dirs = listdir(cptdir)
144    expr = re.compile('cpt.([0-9]*)')
145    cpts = []
146    for dir in dirs:
147        match = expr.match(dir)
148        if match:
149            cpts.append(match.group(1))
150
151    if options.checkpoint > len(cpts):
152        m5.panic('Checkpoint %d not found' % options.checkpoint)
153
154    m5.restoreCheckpoint(root, "/".join([cptdir, "cpt.%s" % cpts[options.checkpoint - 1]]))
155
156if options.maxtick:
157    maxtick = options.maxtick
158elif options.maxtime:
159    simtime = int(options.maxtime * root.clock.value)
160    print "simulating for: ", simtime
161    maxtick = simtime
162else:
163    maxtick = -1
164
165exit_event = m5.simulate(maxtick)
166
167while exit_event.getCause() == "checkpoint":
168    if options.checkpoint_dir:
169        m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"]))
170    else:
171        m5.checkpoint(root, "cpt.%d")
172
173    if maxtick == -1:
174        exit_event = m5.simulate(maxtick)
175    else:
176        exit_event = m5.simulate(maxtick - m5.curTick())
177
178print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()
179