Options.py revision 9520:ea7c03ae2d5e 
1# Copyright (c) 2006-2008 The Regents of The University of Michigan
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15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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26#
27# Authors: Lisa Hsu
28
29import m5
30from m5.defines import buildEnv
31from m5.objects import *
32from Benchmarks import *
33
34import CpuConfig
35
36def _listCpuTypes(option, opt, value, parser):
37    CpuConfig.print_cpu_list()
38    sys.exit(0)
39
40def addCommonOptions(parser):
41    # system options
42    parser.add_option("--list-cpu-types",
43                      action="callback", callback=_listCpuTypes,
44                      help="List available CPU types")
45    parser.add_option("--cpu-type", type="choice", default="atomic",
46                      choices=CpuConfig.cpu_names(),
47                      help = "type of cpu to run with")
48    parser.add_option("--checker", action="store_true");
49    parser.add_option("-n", "--num-cpus", type="int", default=1)
50    parser.add_option("--caches", action="store_true")
51    parser.add_option("--l2cache", action="store_true")
52    parser.add_option("--fastmem", action="store_true")
53    parser.add_option("--clock", action="store", type="string", default='2GHz')
54    parser.add_option("--num-dirs", type="int", default=1)
55    parser.add_option("--num-l2caches", type="int", default=1)
56    parser.add_option("--num-l3caches", type="int", default=1)
57    parser.add_option("--l1d_size", type="string", default="64kB")
58    parser.add_option("--l1i_size", type="string", default="32kB")
59    parser.add_option("--l2_size", type="string", default="2MB")
60    parser.add_option("--l3_size", type="string", default="16MB")
61    parser.add_option("--l1d_assoc", type="int", default=2)
62    parser.add_option("--l1i_assoc", type="int", default=2)
63    parser.add_option("--l2_assoc", type="int", default=8)
64    parser.add_option("--l3_assoc", type="int", default=16)
65    parser.add_option("--cacheline_size", type="int", default=64)
66    parser.add_option("--ruby", action="store_true")
67    parser.add_option("--smt", action="store_true", default=False,
68                      help = """
69                      Only used if multiple programs are specified. If true,
70                      then the number of threads per cpu is same as the
71                      number of programs.""")
72
73    # Run duration options
74    parser.add_option("-m", "--maxtick", type="int", default=m5.MaxTick,
75                      metavar="T", help="Stop after T ticks")
76    parser.add_option("--maxtime", type="float")
77    parser.add_option("-I", "--maxinsts", action="store", type="int",
78                      default=None, help="""Total number of instructions to
79                                            simulate (default: run forever)""")
80    parser.add_option("--work-item-id", action="store", type="int",
81                      help="the specific work id for exit & checkpointing")
82    parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
83                      help="exit when work starts on the specified cpu")
84    parser.add_option("--work-end-exit-count", action="store", type="int",
85                      help="exit at specified work end count")
86    parser.add_option("--work-begin-exit-count", action="store", type="int",
87                      help="exit at specified work begin count")
88    parser.add_option("--init-param", action="store", type="int", default=0,
89                      help="""Parameter available in simulation with m5
90                              initparam""")
91
92    # Checkpointing options
93    ###Note that performing checkpointing via python script files will override
94    ###checkpoint instructions built into binaries.
95    parser.add_option("--take-checkpoints", action="store", type="string",
96        help="<M,N> take checkpoints at tick M and every N ticks thereafter")
97    parser.add_option("--max-checkpoints", action="store", type="int",
98        help="the maximum number of checkpoints to drop", default=5)
99    parser.add_option("--checkpoint-dir", action="store", type="string",
100        help="Place all checkpoints in this absolute directory")
101    parser.add_option("-r", "--checkpoint-restore", action="store", type="int",
102        help="restore from checkpoint <N>")
103    parser.add_option("--checkpoint-at-end", action="store_true",
104                      help="take a checkpoint at end of run")
105    parser.add_option("--work-begin-checkpoint-count", action="store", type="int",
106                      help="checkpoint at specified work begin count")
107    parser.add_option("--work-end-checkpoint-count", action="store", type="int",
108                      help="checkpoint at specified work end count")
109    parser.add_option("--work-cpus-checkpoint-count", action="store", type="int",
110                      help="checkpoint and exit when active cpu count is reached")
111    parser.add_option("--restore-with-cpu", action="store", type="choice",
112                      default="atomic", choices = ["atomic", "timing",
113                                                   "detailed", "inorder"],
114                      help = "cpu type for restoring from a checkpoint")
115
116
117    # CPU Switching - default switch model goes from a checkpoint
118    # to a timing simple CPU with caches to warm up, then to detailed CPU for
119    # data measurement
120    parser.add_option("--repeat-switch", action="store", type="int",
121        default=None,
122        help="switch back and forth between CPUs with period <N>")
123    parser.add_option("-s", "--standard-switch", action="store", type="int",
124        default=None,
125        help="switch from timing to Detailed CPU after warmup period of <N>")
126    parser.add_option("-p", "--prog-interval", type="int",
127        help="CPU Progress Interval")
128
129    # Fastforwarding and simpoint related materials
130    parser.add_option("-W", "--warmup-insts", action="store", type="int",
131        default=None,
132        help="Warmup period in total instructions (requires --standard-switch)")
133    parser.add_option("--bench", action="store", type="string", default=None,
134        help="base names for --take-checkpoint and --checkpoint-restore")
135    parser.add_option("-F", "--fast-forward", action="store", type="string",
136        default=None,
137        help="Number of instructions to fast forward before switching")
138    parser.add_option("-S", "--simpoint", action="store_true", default=False,
139        help="""Use workload simpoints as an instruction offset for
140                --checkpoint-restore or --take-checkpoint.""")
141    parser.add_option("--at-instruction", action="store_true", default=False,
142        help="""Treat value of --checkpoint-restore or --take-checkpoint as a
143                number of instructions.""")
144
145def addSEOptions(parser):
146    # Benchmark options
147    parser.add_option("-c", "--cmd", default="",
148                      help="The binary to run in syscall emulation mode.")
149    parser.add_option("-o", "--options", default="",
150                      help="""The options to pass to the binary, use " "
151                              around the entire string""")
152    parser.add_option("-i", "--input", default="",
153                      help="Read stdin from a file.")
154    parser.add_option("--output", default="",
155                      help="Redirect stdout to a file.")
156    parser.add_option("--errout", default="",
157                      help="Redirect stderr to a file.")
158
159def addFSOptions(parser):
160    # Simulation options
161    parser.add_option("--timesync", action="store_true",
162            help="Prevent simulated time from getting ahead of real time")
163
164    # System options
165    parser.add_option("--kernel", action="store", type="string")
166    parser.add_option("--script", action="store", type="string")
167    parser.add_option("--frame-capture", action="store_true",
168            help="Stores changed frame buffers from the VNC server to compressed "\
169            "files in the gem5 output directory")
170
171    if buildEnv['TARGET_ISA'] == "arm":
172        parser.add_option("--bare-metal", action="store_true",
173                   help="Provide the raw system without the linux specific bits")
174        parser.add_option("--machine-type", action="store", type="choice",
175                choices=ArmMachineType.map.keys(), default="RealView_PBX")
176    # Benchmark options
177    parser.add_option("--dual", action="store_true",
178                      help="Simulate two systems attached with an ethernet link")
179    parser.add_option("-b", "--benchmark", action="store", type="string",
180                      dest="benchmark",
181                      help="Specify the benchmark to run. Available benchmarks: %s"\
182                      % DefinedBenchmarks)
183
184    # Metafile options
185    parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
186                      help="Specify the filename to dump a pcap capture of the" \
187                      "ethernet traffic")
188
189    # Disk Image Options
190    parser.add_option("--disk-image", action="store", type="string", default=None,
191                      help="Path to the disk image to use.")
192
193    # Memory Size Options
194    parser.add_option("--mem-size", action="store", type="string", default=None,
195                      help="Specify the physical memory size (single memory)")
196