xref: /gem5/configs/common/Options.py

# Copyright (c) 2006-2008 The Regents of The University of Michigan
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# 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)
parser.add_option("-f", "--fast_forward", type="int", action="store",
                  help="fast_forward count in instructions: use alone to checkpoint or with -s and -max_inst")
parser.add_option("--max_inst", type="int", action="store",
                  help="max_insts_any_thread value")