5a648f2074
This patch adds a --repeat-switch option that will enable repeat core switching at a user defined period (set with --switch-freq option). currently, a switch can only occur between like CPU types. inorder CPU switching is not supported. *note* this patch simply allows a config that will perform repeat switching, it does not fix drain/switchout functionality. if you run with repeat switching you will hit assertion failures and/or your workload with hang or die.
183 lines
9.8 KiB
Python
183 lines
9.8 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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import m5
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from m5.defines import buildEnv
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from m5.objects import *
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from Benchmarks import *
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def addCommonOptions(parser):
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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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"arm_detailed"],
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help = "type of cpu to run with")
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parser.add_option("--checker", action="store_true");
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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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parser.add_option("--ruby", action="store_true")
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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", 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",
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default=None, help="""Total number of instructions to
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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
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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("--repeat-switch", action="store", type="int",
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default=None,
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help="switch back and forth between CPUs with period <N>")
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parser.add_option("-s", "--standard-switch", action="store", type="int",
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default=None,
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help="switch from timing to Detailed CPU after warmup period of <N>")
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parser.add_option("-p", "--prog-interval", type="int",
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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="""Treat value of --checkpoint-restore or --take-checkpoint as a
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number of instructions.""")
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def addSEOptions(parser):
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# Benchmark options
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parser.add_option("-c", "--cmd", default="",
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help="The binary to run in syscall emulation mode.")
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parser.add_option("-o", "--options", default="",
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help="""The options to pass to the binary, use " "
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around the entire string""")
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parser.add_option("-i", "--input", default="",
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help="Read stdin from a file.")
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parser.add_option("--output", default="",
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help="Redirect stdout to a file.")
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parser.add_option("--errout", default="",
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help="Redirect stderr to a file.")
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def addFSOptions(parser):
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# Simulation options
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parser.add_option("--timesync", action="store_true",
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help="Prevent simulated time from getting ahead of real time")
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# System options
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parser.add_option("--kernel", action="store", type="string")
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parser.add_option("--script", action="store", type="string")
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parser.add_option("--frame-capture", action="store_true",
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help="Stores changed frame buffers from the VNC server to compressed "\
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"files in the gem5 output directory")
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if buildEnv['TARGET_ISA'] == "arm":
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parser.add_option("--bare-metal", action="store_true",
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help="Provide the raw system without the linux specific bits")
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parser.add_option("--machine-type", action="store", type="choice",
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choices=ArmMachineType.map.keys(), default="RealView_PBX")
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# Benchmark options
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parser.add_option("--dual", action="store_true",
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help="Simulate two systems attached with an ethernet link")
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parser.add_option("-b", "--benchmark", action="store", type="string",
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dest="benchmark",
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help="Specify the benchmark to run. Available benchmarks: %s"\
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% DefinedBenchmarks)
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# Metafile options
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parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
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help="Specify the filename to dump a pcap capture of the" \
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"ethernet traffic")
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# Disk Image Options
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parser.add_option("--disk-image", action="store", type="string", default=None,
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help="Path to the disk image to use.")
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# Memory Size Options
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parser.add_option("--mem-size", action="store", type="string", default=None,
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help="Specify the physical memory size (single memory)")
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