Options.py revision 9935
1# Copyright (c) 2013 ARM Limited
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39# Authors: Lisa Hsu
40
41import m5
42from m5.defines import buildEnv
43from m5.objects import *
44from Benchmarks import *
45
46import CpuConfig
47import MemConfig
48
49def _listCpuTypes(option, opt, value, parser):
50    CpuConfig.print_cpu_list()
51    sys.exit(0)
52
53def _listMemTypes(option, opt, value, parser):
54    MemConfig.print_mem_list()
55    sys.exit(0)
56
57def addCommonOptions(parser):
58    # system options
59    parser.add_option("--list-cpu-types",
60                      action="callback", callback=_listCpuTypes,
61                      help="List available CPU types")
62    parser.add_option("--cpu-type", type="choice", default="atomic",
63                      choices=CpuConfig.cpu_names(),
64                      help = "type of cpu to run with")
65    parser.add_option("--checker", action="store_true");
66    parser.add_option("-n", "--num-cpus", type="int", default=1)
67    parser.add_option("--sys-voltage", action="store", type="string",
68                      default='1.0V',
69                      help = """Top-level voltage for blocks running at system
70                      power supply""")
71    parser.add_option("--sys-clock", action="store", type="string",
72                      default='1GHz',
73                      help = """Top-level clock for blocks running at system
74                      speed""")
75    parser.add_option("--cpu-clock", action="store", type="string",
76                      default='2GHz',
77                      help="Clock for blocks running at CPU speed")
78    parser.add_option("--smt", action="store_true", default=False,
79                      help = """
80                      Only used if multiple programs are specified. If true,
81                      then the number of threads per cpu is same as the
82                      number of programs.""")
83
84    # Memory Options
85    parser.add_option("--list-mem-types",
86                      action="callback", callback=_listMemTypes,
87                      help="List available memory types")
88    parser.add_option("--mem-type", type="choice", default="simple_mem",
89                      choices=MemConfig.mem_names(),
90                      help = "type of memory to use")
91    parser.add_option("--mem-channels", type="int", default=1,
92                      help = "number of memory channels")
93    parser.add_option("--mem-size", action="store", type="string",
94                      default="512MB",
95                      help="Specify the physical memory size (single memory)")
96
97    # Cache Options
98    parser.add_option("--caches", action="store_true")
99    parser.add_option("--l2cache", action="store_true")
100    parser.add_option("--fastmem", action="store_true")
101    parser.add_option("--num-dirs", type="int", default=1)
102    parser.add_option("--num-l2caches", type="int", default=1)
103    parser.add_option("--num-l3caches", type="int", default=1)
104    parser.add_option("--l1d_size", type="string", default="64kB")
105    parser.add_option("--l1i_size", type="string", default="32kB")
106    parser.add_option("--l2_size", type="string", default="2MB")
107    parser.add_option("--l3_size", type="string", default="16MB")
108    parser.add_option("--l1d_assoc", type="int", default=2)
109    parser.add_option("--l1i_assoc", type="int", default=2)
110    parser.add_option("--l2_assoc", type="int", default=8)
111    parser.add_option("--l3_assoc", type="int", default=16)
112    parser.add_option("--cacheline_size", type="int", default=64)
113
114    # Enable Ruby
115    parser.add_option("--ruby", action="store_true")
116
117    # Run duration options
118    parser.add_option("-m", "--abs-max-tick", type="int", default=m5.MaxTick,
119                      metavar="TICKS", help="Run to absolute simulated tick " \
120                      "specified including ticks from a restored checkpoint")
121    parser.add_option("--rel-max-tick", type="int", default=None,
122                      metavar="TICKS", help="Simulate for specified number of" \
123                      " ticks relative to the simulation start tick (e.g. if " \
124                      "restoring a checkpoint)")
125    parser.add_option("--maxtime", type="float", default=None,
126                      help="Run to the specified absolute simulated time in " \
127                      "seconds")
128    parser.add_option("-I", "--maxinsts", action="store", type="int",
129                      default=None, help="""Total number of instructions to
130                                            simulate (default: run forever)""")
131    parser.add_option("--work-item-id", action="store", type="int",
132                      help="the specific work id for exit & checkpointing")
133    parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
134                      help="exit when work starts on the specified cpu")
135    parser.add_option("--work-end-exit-count", action="store", type="int",
136                      help="exit at specified work end count")
137    parser.add_option("--work-begin-exit-count", action="store", type="int",
138                      help="exit at specified work begin count")
139    parser.add_option("--init-param", action="store", type="int", default=0,
140                      help="""Parameter available in simulation with m5
141                              initparam""")
142
143    # Simpoint options
144    parser.add_option("--simpoint-profile", action="store_true",
145                      help="Enable basic block profiling for SimPoints")
146    parser.add_option("--simpoint-interval", type="int", default=10000000,
147                      help="SimPoint interval in num of instructions")
148
149    # Checkpointing options
150    ###Note that performing checkpointing via python script files will override
151    ###checkpoint instructions built into binaries.
152    parser.add_option("--take-checkpoints", action="store", type="string",
153        help="<M,N> take checkpoints at tick M and every N ticks thereafter")
154    parser.add_option("--max-checkpoints", action="store", type="int",
155        help="the maximum number of checkpoints to drop", default=5)
156    parser.add_option("--checkpoint-dir", action="store", type="string",
157        help="Place all checkpoints in this absolute directory")
158    parser.add_option("-r", "--checkpoint-restore", action="store", type="int",
159        help="restore from checkpoint <N>")
160    parser.add_option("--checkpoint-at-end", action="store_true",
161                      help="take a checkpoint at end of run")
162    parser.add_option("--work-begin-checkpoint-count", action="store", type="int",
163                      help="checkpoint at specified work begin count")
164    parser.add_option("--work-end-checkpoint-count", action="store", type="int",
165                      help="checkpoint at specified work end count")
166    parser.add_option("--work-cpus-checkpoint-count", action="store", type="int",
167                      help="checkpoint and exit when active cpu count is reached")
168    parser.add_option("--restore-with-cpu", action="store", type="choice",
169                      default="atomic", choices=CpuConfig.cpu_names(),
170                      help = "cpu type for restoring from a checkpoint")
171
172
173    # CPU Switching - default switch model goes from a checkpoint
174    # to a timing simple CPU with caches to warm up, then to detailed CPU for
175    # data measurement
176    parser.add_option("--repeat-switch", action="store", type="int",
177        default=None,
178        help="switch back and forth between CPUs with period <N>")
179    parser.add_option("-s", "--standard-switch", action="store", type="int",
180        default=None,
181        help="switch from timing to Detailed CPU after warmup period of <N>")
182    parser.add_option("-p", "--prog-interval", type="str",
183        help="CPU Progress Interval")
184
185    # Fastforwarding and simpoint related materials
186    parser.add_option("-W", "--warmup-insts", action="store", type="int",
187        default=None,
188        help="Warmup period in total instructions (requires --standard-switch)")
189    parser.add_option("--bench", action="store", type="string", default=None,
190        help="base names for --take-checkpoint and --checkpoint-restore")
191    parser.add_option("-F", "--fast-forward", action="store", type="string",
192        default=None,
193        help="Number of instructions to fast forward before switching")
194    parser.add_option("-S", "--simpoint", action="store_true", default=False,
195        help="""Use workload simpoints as an instruction offset for
196                --checkpoint-restore or --take-checkpoint.""")
197    parser.add_option("--at-instruction", action="store_true", default=False,
198        help="""Treat value of --checkpoint-restore or --take-checkpoint as a
199                number of instructions.""")
200
201def addSEOptions(parser):
202    # Benchmark options
203    parser.add_option("-c", "--cmd", default="",
204                      help="The binary to run in syscall emulation mode.")
205    parser.add_option("-o", "--options", default="",
206                      help="""The options to pass to the binary, use " "
207                              around the entire string""")
208    parser.add_option("-i", "--input", default="",
209                      help="Read stdin from a file.")
210    parser.add_option("--output", default="",
211                      help="Redirect stdout to a file.")
212    parser.add_option("--errout", default="",
213                      help="Redirect stderr to a file.")
214
215def addFSOptions(parser):
216    # Simulation options
217    parser.add_option("--timesync", action="store_true",
218            help="Prevent simulated time from getting ahead of real time")
219
220    # System options
221    parser.add_option("--kernel", action="store", type="string")
222    parser.add_option("--script", action="store", type="string")
223    parser.add_option("--frame-capture", action="store_true",
224            help="Stores changed frame buffers from the VNC server to compressed "\
225            "files in the gem5 output directory")
226
227    if buildEnv['TARGET_ISA'] == "arm":
228        parser.add_option("--bare-metal", action="store_true",
229                   help="Provide the raw system without the linux specific bits")
230        parser.add_option("--machine-type", action="store", type="choice",
231                choices=ArmMachineType.map.keys(), default="RealView_PBX")
232        parser.add_option("--dtb-filename", action="store", type="string",
233              help="Specifies device tree blob file to use with device-tree-"\
234              "enabled kernels")
235        parser.add_option("--enable-context-switch-stats-dump", \
236                action="store_true", help="Enable stats dump at context "\
237                "switches and dump tasks file (required for Streamline)")
238
239    # Benchmark options
240    parser.add_option("--dual", action="store_true",
241                      help="Simulate two systems attached with an ethernet link")
242    parser.add_option("-b", "--benchmark", action="store", type="string",
243                      dest="benchmark",
244                      help="Specify the benchmark to run. Available benchmarks: %s"\
245                      % DefinedBenchmarks)
246
247    # Metafile options
248    parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
249                      help="Specify the filename to dump a pcap capture of the" \
250                      "ethernet traffic")
251
252    # Disk Image Options
253    parser.add_option("--disk-image", action="store", type="string", default=None,
254                      help="Path to the disk image to use.")
255