configs/example/fs.py

   1 # Copyright (c) 2006 The Regents of The University of Michigan
   2 # All rights reserved.
   3 #
   4 # Redistribution and use in source and binary forms, with or without
   5 # modification, are permitted provided that the following conditions are
   6 # met: redistributions of source code must retain the above copyright
   7 # notice, this list of conditions and the following disclaimer;
   8 # redistributions in binary form must reproduce the above copyright
   9 # notice, this list of conditions and the following disclaimer in the
  10 # documentation and/or other materials provided with the distribution;
  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  18 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  19 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  21 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27 # Authors: Ali Saidi
  28
  29 import optparse, os, sys
  30
  31 import m5
  32 from m5.objects import *
  33 m5.AddToPath('../common')
  34 from FSConfig import *
  35 from SysPaths import *
  36 from Benchmarks import *
  37
  38 if not m5.build_env['FULL_SYSTEM']:
  39     m5.panic("This script requires full-system mode (ALPHA_FS).")
  40
  41 parser = optparse.OptionParser()
  42
  43 parser.add_option("-d", "--detailed", action="store_true")
  44 parser.add_option("-t", "--timing", action="store_true")
  45 parser.add_option("-m", "--maxtick", type="int")
  46 parser.add_option("--maxtime", type="float")
  47 parser.add_option("--dual", action="store_true",
  48                   help="Simulate two systems attached with an ethernet link")
  49 parser.add_option("-b", "--benchmark", action="store", type="string",
  50                   dest="benchmark",
  51                   help="Specify the benchmark to run. Available benchmarks: %s"\
  52                   % DefinedBenchmarks)
  53 parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
  54                   help="Specify the filename to dump a pcap capture of the" \
  55                   "ethernet traffic")
  56 parser.add_option("--checkpoint_dir", action="store", type="string",
  57                   help="Place all checkpoints in this absolute directory")
  58
  59 (options, args) = parser.parse_args()
  60
  61 if args:
  62     print "Error: script doesn't take any positional arguments"
  63     sys.exit(1)
  64
  65 if options.detailed:
  66     cpu = DetailedO3CPU()
  67     cpu2 = DetailedO3CPU()
  68     mem_mode = 'timing'
  69 elif options.timing:
  70     cpu = TimingSimpleCPU()
  71     cpu2 = TimingSimpleCPU()
  72     mem_mode = 'timing'
  73 else:
  74     cpu = AtomicSimpleCPU()
  75     cpu2 = AtomicSimpleCPU()
  76     mem_mode = 'atomic'
  77
  78 cpu.clock = '2GHz'
  79 cpu2.clock = '2GHz'
  80
  81 if options.benchmark:
  82     if options.benchmark not in Benchmarks:
  83         print "Error benchmark %s has not been defined." % options.benchmark
  84         print "Valid benchmarks are: %s" % DefinedBenchmarks
  85         sys.exit(1)
  86
  87     bm = Benchmarks[options.benchmark]
  88 else:
  89     if options.dual:
  90         bm = [Machine(), Machine()]
  91     else:
  92         bm = [Machine()]
  93
  94 if len(bm) == 2:
  95     s1 = makeLinuxAlphaSystem(mem_mode, bm[0])
  96     s1.cpu = cpu
  97     cpu.connectMemPorts(s1.membus)
  98     cpu.mem = s1.physmem
  99     s2 = makeLinuxAlphaSystem(mem_mode, bm[1])
 100     s2.cpu = cpu2
 101     cpu2.connectMemPorts(s2.membus)
 102     cpu2.mem = s2.physmem
 103     root = makeDualRoot(s1, s2, options.etherdump)
 104 elif len(bm) == 1:
 105     root = Root(clock = '1THz',
 106                 system = makeLinuxAlphaSystem(mem_mode, bm[0]))
 107     root.system.cpu = cpu
 108     cpu.connectMemPorts(root.system.membus)
 109     cpu.mem = root.system.physmem
 110 else:
 111     print "Error I don't know how to create more than 2 systems."
 112     sys.exit(1)
 113
 114 m5.instantiate(root)
 115
 116 if options.maxtick:
 117     maxtick = options.maxtick
 118 elif options.maxtime:
 119     simtime = int(options.maxtime * root.clock.value)
 120     print "simulating for: ", simtime
 121     maxtick = simtime
 122 else:
 123     maxtick = -1
 124
 125 exit_event = m5.simulate(maxtick)
 126
 127 while exit_event.getCause() == "checkpoint":
 128     if options.checkpoint_dir:
 129         m5.checkpoint(root, "/".join([options.checkpoint_dir, "cpt.%d"]))
 130     else:
 131         m5.checkpoint(root, "cpt.%d")
 132
 133     if maxtick == -1:
 134         exit_event = m5.simulate(maxtick)
 135     else:
 136         exit_event = m5.simulate(maxtick - m5.curTick())
 137
 138 print 'Exiting @ cycle', m5.curTick(), 'because', exit_event.getCause()