garnet_synth_traffic.py revision 11670 
1# Copyright (c) 2016 Georgia Institute of Technology
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15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Author: Tushar Krishna
28
29import m5
30from m5.objects import *
31from m5.defines import buildEnv
32from m5.util import addToPath
33import os, optparse, sys
34addToPath('../common')
35addToPath('../')
36
37import Options
38from ruby import Ruby
39
40# Get paths we might need.  It's expected this file is in m5/configs/example.
41config_path = os.path.dirname(os.path.abspath(__file__))
42config_root = os.path.dirname(config_path)
43m5_root = os.path.dirname(config_root)
44
45parser = optparse.OptionParser()
46Options.addCommonOptions(parser)
47
48parser.add_option("--synthetic", type="choice", default="uniform_random",
49                  choices=['uniform_random', 'tornado', 'bit_complement', \
50                           'bit_reverse', 'bit_rotation', 'neighbor', \
51                            'shuffle', 'transpose'])
52
53parser.add_option("-i", "--injectionrate", type="float", default=0.1,
54                  metavar="I",
55                  help="Injection rate in packets per cycle per node. \
56                        Takes decimal value between 0 to 1 (eg. 0.225). \
57                        Number of digits after 0 depends upon --precision.")
58
59parser.add_option("--precision", type="int", default=3,
60                  help="Number of digits of precision after decimal point\
61                        for injection rate")
62
63parser.add_option("--sim-cycles", type="int", default=1000,
64                   help="Number of simulation cycles")
65
66parser.add_option("--num-packets-max", type="int", default=-1,
67                  help="Stop injecting after --num-packets-max.\
68                        Set to -1 to disable.")
69
70parser.add_option("--single-sender-id", type="int", default=-1,
71                  help="Only inject from this sender.\
72                        Set to -1 to disable.")
73
74parser.add_option("--single-dest-id", type="int", default=-1,
75                  help="Only send to this destination.\
76                        Set to -1 to disable.")
77
78parser.add_option("--inj-vnet", type="int", default=-1,
79                  help="Only inject in this vnet (0, 1 or 2).\
80                        0 and 1 are 1-flit, 2 is 5-flit.\
81                        Set to -1 to inject randomly in all vnets.")
82
83#
84# Add the ruby specific and protocol specific options
85#
86Ruby.define_options(parser)
87
88execfile(os.path.join(config_root, "common", "Options.py"))
89
90(options, args) = parser.parse_args()
91
92if args:
93     print "Error: script doesn't take any positional arguments"
94     sys.exit(1)
95
96
97if options.inj_vnet > 2:
98    print "Error: Injection vnet %d should be 0 (1-flit), 1 (1-flit) \
99                  or 2 (5-flit) or -1 (random)"\
100           % (options.inj_vnet)
101    sys.exit(1)
102
103
104cpus = [ 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 xrange(options.num_cpus) ]
115
116# create the desired simulated system
117system = System(cpu = cpus, mem_ranges = [AddrRange(options.mem_size)])
118
119
120# Create a top-level voltage domain and clock domain
121system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
122
123system.clk_domain = SrcClockDomain(clock = options.sys_clock,
124                                   voltage_domain = system.voltage_domain)
125
126Ruby.create_system(options, False, system)
127
128# Create a seperate clock domain for Ruby
129system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
130                                        voltage_domain = system.voltage_domain)
131
132i = 0
133for 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
144root = Root(full_system = False, system = system)
145root.system.mem_mode = 'timing'
146
147# Not much point in this being higher than the L1 latency
148m5.ticks.setGlobalFrequency('1ns')
149
150# instantiate configuration
151m5.instantiate()
152
153# simulate until program terminates
154exit_event = m5.simulate(options.abs_max_tick)
155
156print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
157