gem5/configs/common/Options.py

# Copyright (c) 2006-2007 The Regents of The University of Michigan
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# Authors: Lisa Hsu

# system options
parser.add_option("-d", "--detailed", action="store_true")
parser.add_option("-t", "--timing", action="store_true")
parser.add_option("-n", "--num_cpus", type="int", default=1)
parser.add_option("--caches", action="store_true")
parser.add_option("--l2cache", action="store_true")
parser.add_option("--fastmem", action="store_true")

# Run duration options
parser.add_option("-m", "--maxtick", type="int")
parser.add_option("--maxtime", type="float")

# Checkpointing options
###Note that performing checkpointing via python script files will override
###checkpoint instructions built into binaries.
parser.add_option("--take_checkpoints", action="store", type="string",
                  help="<M,N> will take checkpoint at cycle M and every N cycles \
                  thereafter")
parser.add_option("--max_checkpoints", action="store", type="int",
                  help="the maximum number of checkpoints to drop",
                  default=5)
parser.add_option("--checkpoint_dir", action="store", type="string",
                  help="Place all checkpoints in this absolute directory")
parser.add_option("-r", "--checkpoint_restore", action="store", type="int",
                  help="restore from checkpoint <N>")

# CPU Switching - default switch model goes from a checkpoint
# to a timing simple CPU with caches to warm up, then to detailed CPU for
# data measurement
parser.add_option("-s", "--standard_switch", action="store_true",
                  help="switch from timing CPU to Detailed CPU")
parser.add_option("-w", "--warmup", action="store", type="int",
                  help="if -s, then this is the warmup period.  else, this is ignored",
                  default=5000000000)