Options.py revision 9790 
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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("--list-mem-types",
66                      action="callback", callback=_listMemTypes,
67                      help="List available memory types")
68    parser.add_option("--mem-type", type="choice", default="simple_mem",
69                      choices=MemConfig.mem_names(),
70                      help = "type of memory to use")
71    parser.add_option("--checker", action="store_true");
72    parser.add_option("-n", "--num-cpus", type="int", default=1)
73    parser.add_option("--caches", action="store_true")
74    parser.add_option("--l2cache", action="store_true")
75    parser.add_option("--fastmem", action="store_true")
76    parser.add_option("--simpoint-profile", action="store_true",
77                      help="Enable basic block profiling for SimPoints")
78    parser.add_option("--simpoint-interval", type="int", default=10000000,
79                      help="SimPoint interval in num of instructions")
80    parser.add_option("--clock", action="store", type="string", default='2GHz')
81    parser.add_option("--sys-clock", action="store", type="string",
82                      default='1GHz',
83                      help = """Top-level clock for blocks running at system
84                      speed""")
85    parser.add_option("--cpu-clock", action="store", type="string",
86                      default='2GHz',
87                      help="Clock for blocks running at CPU speed")
88    parser.add_option("--num-dirs", type="int", default=1)
89    parser.add_option("--num-l2caches", type="int", default=1)
90    parser.add_option("--num-l3caches", type="int", default=1)
91    parser.add_option("--l1d_size", type="string", default="64kB")
92    parser.add_option("--l1i_size", type="string", default="32kB")
93    parser.add_option("--l2_size", type="string", default="2MB")
94    parser.add_option("--l3_size", type="string", default="16MB")
95    parser.add_option("--l1d_assoc", type="int", default=2)
96    parser.add_option("--l1i_assoc", type="int", default=2)
97    parser.add_option("--l2_assoc", type="int", default=8)
98    parser.add_option("--l3_assoc", type="int", default=16)
99    parser.add_option("--cacheline_size", type="int", default=64)
100    parser.add_option("--ruby", action="store_true")
101    parser.add_option("--smt", action="store_true", default=False,
102                      help = """
103                      Only used if multiple programs are specified. If true,
104                      then the number of threads per cpu is same as the
105                      number of programs.""")
106
107    # Run duration options
108    parser.add_option("-m", "--maxtick", type="int", default=m5.MaxTick,
109                      metavar="T", help="Stop after T ticks")
110    parser.add_option("--maxtime", type="float")
111    parser.add_option("-I", "--maxinsts", action="store", type="int",
112                      default=None, help="""Total number of instructions to
113                                            simulate (default: run forever)""")
114    parser.add_option("--work-item-id", action="store", type="int",
115                      help="the specific work id for exit & checkpointing")
116    parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
117                      help="exit when work starts on the specified cpu")
118    parser.add_option("--work-end-exit-count", action="store", type="int",
119                      help="exit at specified work end count")
120    parser.add_option("--work-begin-exit-count", action="store", type="int",
121                      help="exit at specified work begin count")
122    parser.add_option("--init-param", action="store", type="int", default=0,
123                      help="""Parameter available in simulation with m5
124                              initparam""")
125
126    # Checkpointing options
127    ###Note that performing checkpointing via python script files will override
128    ###checkpoint instructions built into binaries.
129    parser.add_option("--take-checkpoints", action="store", type="string",
130        help="<M,N> take checkpoints at tick M and every N ticks thereafter")
131    parser.add_option("--max-checkpoints", action="store", type="int",
132        help="the maximum number of checkpoints to drop", default=5)
133    parser.add_option("--checkpoint-dir", action="store", type="string",
134        help="Place all checkpoints in this absolute directory")
135    parser.add_option("-r", "--checkpoint-restore", action="store", type="int",
136        help="restore from checkpoint <N>")
137    parser.add_option("--checkpoint-at-end", action="store_true",
138                      help="take a checkpoint at end of run")
139    parser.add_option("--work-begin-checkpoint-count", action="store", type="int",
140                      help="checkpoint at specified work begin count")
141    parser.add_option("--work-end-checkpoint-count", action="store", type="int",
142                      help="checkpoint at specified work end count")
143    parser.add_option("--work-cpus-checkpoint-count", action="store", type="int",
144                      help="checkpoint and exit when active cpu count is reached")
145    parser.add_option("--restore-with-cpu", action="store", type="choice",
146                      default="atomic", choices=CpuConfig.cpu_names(),
147                      help = "cpu type for restoring from a checkpoint")
148
149
150    # CPU Switching - default switch model goes from a checkpoint
151    # to a timing simple CPU with caches to warm up, then to detailed CPU for
152    # data measurement
153    parser.add_option("--repeat-switch", action="store", type="int",
154        default=None,
155        help="switch back and forth between CPUs with period <N>")
156    parser.add_option("-s", "--standard-switch", action="store", type="int",
157        default=None,
158        help="switch from timing to Detailed CPU after warmup period of <N>")
159    parser.add_option("-p", "--prog-interval", type="str",
160        help="CPU Progress Interval")
161
162    # Fastforwarding and simpoint related materials
163    parser.add_option("-W", "--warmup-insts", action="store", type="int",
164        default=None,
165        help="Warmup period in total instructions (requires --standard-switch)")
166    parser.add_option("--bench", action="store", type="string", default=None,
167        help="base names for --take-checkpoint and --checkpoint-restore")
168    parser.add_option("-F", "--fast-forward", action="store", type="string",
169        default=None,
170        help="Number of instructions to fast forward before switching")
171    parser.add_option("-S", "--simpoint", action="store_true", default=False,
172        help="""Use workload simpoints as an instruction offset for
173                --checkpoint-restore or --take-checkpoint.""")
174    parser.add_option("--at-instruction", action="store_true", default=False,
175        help="""Treat value of --checkpoint-restore or --take-checkpoint as a
176                number of instructions.""")
177
178def addSEOptions(parser):
179    # Benchmark options
180    parser.add_option("-c", "--cmd", default="",
181                      help="The binary to run in syscall emulation mode.")
182    parser.add_option("-o", "--options", default="",
183                      help="""The options to pass to the binary, use " "
184                              around the entire string""")
185    parser.add_option("-i", "--input", default="",
186                      help="Read stdin from a file.")
187    parser.add_option("--output", default="",
188                      help="Redirect stdout to a file.")
189    parser.add_option("--errout", default="",
190                      help="Redirect stderr to a file.")
191
192def addFSOptions(parser):
193    # Simulation options
194    parser.add_option("--timesync", action="store_true",
195            help="Prevent simulated time from getting ahead of real time")
196
197    # System options
198    parser.add_option("--kernel", action="store", type="string")
199    parser.add_option("--script", action="store", type="string")
200    parser.add_option("--frame-capture", action="store_true",
201            help="Stores changed frame buffers from the VNC server to compressed "\
202            "files in the gem5 output directory")
203
204    if buildEnv['TARGET_ISA'] == "arm":
205        parser.add_option("--bare-metal", action="store_true",
206                   help="Provide the raw system without the linux specific bits")
207        parser.add_option("--machine-type", action="store", type="choice",
208                choices=ArmMachineType.map.keys(), default="RealView_PBX")
209        parser.add_option("--dtb-filename", action="store", type="string",
210              help="Specifies device tree blob file to use with device-tree-"\
211              "enabled kernels")
212    # Benchmark options
213    parser.add_option("--dual", action="store_true",
214                      help="Simulate two systems attached with an ethernet link")
215    parser.add_option("-b", "--benchmark", action="store", type="string",
216                      dest="benchmark",
217                      help="Specify the benchmark to run. Available benchmarks: %s"\
218                      % DefinedBenchmarks)
219
220    # Metafile options
221    parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
222                      help="Specify the filename to dump a pcap capture of the" \
223                      "ethernet traffic")
224
225    # Disk Image Options
226    parser.add_option("--disk-image", action="store", type="string", default=None,
227                      help="Path to the disk image to use.")
228
229    # Memory Size Options
230    parser.add_option("--mem-size", action="store", type="string", default=None,
231                      help="Specify the physical memory size (single memory)")
232