03229f2575
Currently there is an assumption that restoration from a checkpoint will happen by first restoring to an atomic CPU and then switching to a timing CPU. This patch adds support for directly restoring to a timing CPU. It adds a new option '--restore-with-cpu' which is used to specify the type of CPU to which the checkpoint should be restored to. It defaults to 'atomic' which was the case before.
118 lines
6.6 KiB
Python
118 lines
6.6 KiB
Python
# Copyright (c) 2006-2008 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Lisa Hsu
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# system options
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parser.add_option("--cpu-type", type="choice", default="atomic",
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choices = ["atomic", "timing", "detailed", "inorder"],
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help = "type of cpu to run with")
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parser.add_option("-n", "--num-cpus", type="int", default=1)
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parser.add_option("--caches", action="store_true")
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parser.add_option("--l2cache", action="store_true")
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parser.add_option("--fastmem", action="store_true")
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parser.add_option("--clock", action="store", type="string", default='2GHz')
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parser.add_option("--num-dirs", type="int", default=1)
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parser.add_option("--num-l2caches", type="int", default=1)
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parser.add_option("--num-l3caches", type="int", default=1)
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parser.add_option("--l1d_size", type="string", default="64kB")
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parser.add_option("--l1i_size", type="string", default="32kB")
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parser.add_option("--l2_size", type="string", default="2MB")
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parser.add_option("--l3_size", type="string", default="16MB")
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parser.add_option("--l1d_assoc", type="int", default=2)
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parser.add_option("--l1i_assoc", type="int", default=2)
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parser.add_option("--l2_assoc", type="int", default=8)
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parser.add_option("--l3_assoc", type="int", default=16)
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parser.add_option("--cacheline_size", type="int", default=64)
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# Run duration options
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parser.add_option("-m", "--maxtick", type="int", default=m5.MaxTick,
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metavar="T",
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help="Stop after T ticks")
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parser.add_option("--maxtime", type="float")
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parser.add_option("-I", "--maxinsts", action="store", type="int", default=None,
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help="Total number of instructions to simulate (default: run forever)")
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parser.add_option("--work-item-id", action="store", type="int",
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help="the specific work id for exit & checkpointing")
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parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
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help="exit when work starts on the specified cpu")
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parser.add_option("--work-end-exit-count", action="store", type="int",
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help="exit at specified work end count")
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parser.add_option("--work-begin-exit-count", action="store", type="int",
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help="exit at specified work begin count")
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parser.add_option("--init-param", action="store", type="int", default=0,
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help="Parameter available in simulation with m5 initparam")
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# Checkpointing options
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###Note that performing checkpointing via python script files will override
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###checkpoint instructions built into binaries.
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parser.add_option("--take-checkpoints", action="store", type="string",
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help="<M,N> will take checkpoint at cycle M and every N cycles thereafter")
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parser.add_option("--max-checkpoints", action="store", type="int",
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help="the maximum number of checkpoints to drop", default=5)
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parser.add_option("--checkpoint-dir", action="store", type="string",
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help="Place all checkpoints in this absolute directory")
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parser.add_option("-r", "--checkpoint-restore", action="store", type="int",
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help="restore from checkpoint <N>")
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parser.add_option("--checkpoint-at-end", action="store_true",
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help="take a checkpoint at end of run")
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parser.add_option("--work-begin-checkpoint-count", action="store", type="int",
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help="checkpoint at specified work begin count")
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parser.add_option("--work-end-checkpoint-count", action="store", type="int",
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help="checkpoint at specified work end count")
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parser.add_option("--work-cpus-checkpoint-count", action="store", type="int",
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help="checkpoint and exit when active cpu count is reached")
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parser.add_option("--restore-with-cpu", action="store", type="choice",
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default="atomic", choices = ["atomic", "timing",
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"detailed", "inorder"],
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help = "cpu type for restoring from a checkpoint")
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# CPU Switching - default switch model goes from a checkpoint
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# to a timing simple CPU with caches to warm up, then to detailed CPU for
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# data measurement
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parser.add_option("-s", "--standard-switch", action="store_true",
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help="switch from timing CPU to Detailed CPU")
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parser.add_option("-w", "--warmup", action="store", type="int",
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help="if -s, then this is the warmup period. else, this is ignored",
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default=5000000000)
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parser.add_option("-p", "--prog-interval", type="int", help="CPU Progress Interval")
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# Fastforwarding and simpoint related materials
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parser.add_option("-W", "--warmup-insts", action="store", type="int",
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default=None,
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help="Warmup period in total instructions (requires --standard-switch)")
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parser.add_option("--bench", action="store", type="string", default=None,
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help="base names for --take-checkpoint and --checkpoint-restore")
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parser.add_option("-F", "--fast-forward", action="store", type="string",
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default=None,
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help="Number of instructions to fast forward before switching")
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parser.add_option("-S", "--simpoint", action="store_true", default=False,
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help="""Use workload simpoints as an instruction offset for
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--checkpoint-restore or --take-checkpoint.""")
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parser.add_option("--at-instruction", action="store_true", default=False,
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help="""Treate value of --checkpoint-restore or --take-checkpoint as a
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number of instructions.""")
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