configs/example/garnet_synth_traffic.py

   1 # Copyright (c) 2016 Georgia Institute of Technology
   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
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   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
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  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 # Author: Tushar Krishna
  28
  29 from __future__ import print_function
  30 from __future__ import absolute_import
  31
  32 import m5
  33 from m5.objects import *
  34 from m5.defines import buildEnv
  35 from m5.util import addToPath
  36 import os, optparse, sys
  37
  38 addToPath('../')
  39
  40 from common import Options
  41 from ruby import Ruby
  42
  43 # Get paths we might need.  It's expected this file is in m5/configs/example.
  44 config_path = os.path.dirname(os.path.abspath(__file__))
  45 config_root = os.path.dirname(config_path)
  46 m5_root = os.path.dirname(config_root)
  47
  48 parser = optparse.OptionParser()
  49 Options.addNoISAOptions(parser)
  50
  51 parser.add_option("--synthetic", type="choice", default="uniform_random",
  52                   choices=['uniform_random', 'tornado', 'bit_complement', \
  53                            'bit_reverse', 'bit_rotation', 'neighbor', \
  54                             'shuffle', 'transpose'])
  55
  56 parser.add_option("-i", "--injectionrate", type="float", default=0.1,
  57                   metavar="I",
  58                   help="Injection rate in packets per cycle per node. \
  59                         Takes decimal value between 0 to 1 (eg. 0.225). \
  60                         Number of digits after 0 depends upon --precision.")
  61
  62 parser.add_option("--precision", type="int", default=3,
  63                   help="Number of digits of precision after decimal point\
  64                         for injection rate")
  65
  66 parser.add_option("--sim-cycles", type="int", default=1000,
  67                    help="Number of simulation cycles")
  68
  69 parser.add_option("--num-packets-max", type="int", default=-1,
  70                   help="Stop injecting after --num-packets-max.\
  71                         Set to -1 to disable.")
  72
  73 parser.add_option("--single-sender-id", type="int", default=-1,
  74                   help="Only inject from this sender.\
  75                         Set to -1 to disable.")
  76
  77 parser.add_option("--single-dest-id", type="int", default=-1,
  78                   help="Only send to this destination.\
  79                         Set to -1 to disable.")
  80
  81 parser.add_option("--inj-vnet", type="int", default=-1,
  82                   help="Only inject in this vnet (0, 1 or 2).\
  83                         0 and 1 are 1-flit, 2 is 5-flit.\
  84                         Set to -1 to inject randomly in all vnets.")
  85
  86 #
  87 # Add the ruby specific and protocol specific options
  88 #
  89 Ruby.define_options(parser)
  90
  91 (options, args) = parser.parse_args()
  92
  93 if args:
  94      print("Error: script doesn't take any positional arguments")
  95      sys.exit(1)
  96
  97
  98 if options.inj_vnet > 2:
  99     print("Error: Injection vnet %d should be 0 (1-flit), 1 (1-flit) "
 100           "or 2 (5-flit) or -1 (random)" % (options.inj_vnet))
 101     sys.exit(1)
 102
 103
 104 cpus = [ GarnetSyntheticTraffic(
 105                      num_packets_max=options.num_packets_max,
 106                      single_sender=options.single_sender_id,
 107                      single_dest=options.single_dest_id,
 108                      sim_cycles=options.sim_cycles,
 109                      traffic_type=options.synthetic,
 110                      inj_rate=options.injectionrate,
 111                      inj_vnet=options.inj_vnet,
 112                      precision=options.precision,
 113                      num_dest=options.num_dirs) \
 114          for i in range(options.num_cpus) ]
 115
 116 # create the desired simulated system
 117 system = System(cpu = cpus, mem_ranges = [AddrRange(options.mem_size)])
 118
 119
 120 # Create a top-level voltage domain and clock domain
 121 system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
 122
 123 system.clk_domain = SrcClockDomain(clock = options.sys_clock,
 124                                    voltage_domain = system.voltage_domain)
 125
 126 Ruby.create_system(options, False, system)
 127
 128 # Create a seperate clock domain for Ruby
 129 system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
 130                                         voltage_domain = system.voltage_domain)
 131
 132 i = 0
 133 for ruby_port in system.ruby._cpu_ports:
 134      #
 135      # Tie the cpu test ports to the ruby cpu port
 136      #
 137      cpus[i].test = ruby_port.slave
 138      i += 1
 139
 140 # -----------------------
 141 # run simulation
 142 # -----------------------
 143
 144 root = Root(full_system = False, system = system)
 145 root.system.mem_mode = 'timing'
 146
 147 # Not much point in this being higher than the L1 latency
 148 m5.ticks.setGlobalFrequency('1ps')
 149
 150 # instantiate configuration
 151 m5.instantiate()
 152
 153 # simulate until program terminates
 154 exit_event = m5.simulate(options.abs_max_tick)
 155
 156 print('Exiting @ tick', m5.curTick(), 'because', exit_event.getCause())