garnet_synth_traffic.py revision 13774:a1be2a0c55f2 
1# Copyright (c) 2016 Georgia Institute of Technology
2# All rights reserved.
3#
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5# modification, are permitted provided that the following conditions are
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8# redistributions in binary form must reproduce the above copyright
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13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Author: Tushar Krishna
28
29from __future__ import print_function
30from __future__ import absolute_import
31
32import m5
33from m5.objects import *
34from m5.defines import buildEnv
35from m5.util import addToPath
36import os, optparse, sys
37
38addToPath('../')
39
40from common import Options
41from ruby import Ruby
42
43# Get paths we might need.  It's expected this file is in m5/configs/example.
44config_path = os.path.dirname(os.path.abspath(__file__))
45config_root = os.path.dirname(config_path)
46m5_root = os.path.dirname(config_root)
47
48parser = optparse.OptionParser()
49Options.addNoISAOptions(parser)
50
51parser.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
56parser.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
62parser.add_option("--precision", type="int", default=3,
63                  help="Number of digits of precision after decimal point\
64                        for injection rate")
65
66parser.add_option("--sim-cycles", type="int", default=1000,
67                   help="Number of simulation cycles")
68
69parser.add_option("--num-packets-max", type="int", default=-1,
70                  help="Stop injecting after --num-packets-max.\
71                        Set to -1 to disable.")
72
73parser.add_option("--single-sender-id", type="int", default=-1,
74                  help="Only inject from this sender.\
75                        Set to -1 to disable.")
76
77parser.add_option("--single-dest-id", type="int", default=-1,
78                  help="Only send to this destination.\
79                        Set to -1 to disable.")
80
81parser.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#
89Ruby.define_options(parser)
90
91exec(compile(open(os.path.join(config_root, "common", "Options.py")).read(),
92             os.path.join(config_root, "common", "Options.py"), 'exec'))
93
94(options, args) = parser.parse_args()
95
96if args:
97     print("Error: script doesn't take any positional arguments")
98     sys.exit(1)
99
100
101if options.inj_vnet > 2:
102    print("Error: Injection vnet %d should be 0 (1-flit), 1 (1-flit) "
103          "or 2 (5-flit) or -1 (random)" % (options.inj_vnet))
104    sys.exit(1)
105
106
107cpus = [ GarnetSyntheticTraffic(
108                     num_packets_max=options.num_packets_max,
109                     single_sender=options.single_sender_id,
110                     single_dest=options.single_dest_id,
111                     sim_cycles=options.sim_cycles,
112                     traffic_type=options.synthetic,
113                     inj_rate=options.injectionrate,
114                     inj_vnet=options.inj_vnet,
115                     precision=options.precision,
116                     num_dest=options.num_dirs) \
117         for i in range(options.num_cpus) ]
118
119# create the desired simulated system
120system = System(cpu = cpus, mem_ranges = [AddrRange(options.mem_size)])
121
122
123# Create a top-level voltage domain and clock domain
124system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
125
126system.clk_domain = SrcClockDomain(clock = options.sys_clock,
127                                   voltage_domain = system.voltage_domain)
128
129Ruby.create_system(options, False, system)
130
131# Create a seperate clock domain for Ruby
132system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
133                                        voltage_domain = system.voltage_domain)
134
135i = 0
136for ruby_port in system.ruby._cpu_ports:
137     #
138     # Tie the cpu test ports to the ruby cpu port
139     #
140     cpus[i].test = ruby_port.slave
141     i += 1
142
143# -----------------------
144# run simulation
145# -----------------------
146
147root = Root(full_system = False, system = system)
148root.system.mem_mode = 'timing'
149
150# Not much point in this being higher than the L1 latency
151m5.ticks.setGlobalFrequency('1ns')
152
153# instantiate configuration
154m5.instantiate()
155
156# simulate until program terminates
157exit_event = m5.simulate(options.abs_max_tick)
158
159print('Exiting @ tick', m5.curTick(), 'because', exit_event.getCause())
160