gpu-randomtest-ruby.py revision 13618:47a709f53226 
1#
2#  Copyright (c) 2010-2015 Advanced Micro Devices, Inc.
3#  All rights reserved.
4#
5#  For use for simulation and test purposes only
6#
7#  Redistribution and use in source and binary forms, with or without
8#  modification, are permitted provided that the following conditions are met:
9#
10#  1. Redistributions of source code must retain the above copyright notice,
11#  this list of conditions and the following disclaimer.
12#
13#  2. Redistributions in binary form must reproduce the above copyright notice,
14#  this list of conditions and the following disclaimer in the documentation
15#  and/or other materials provided with the distribution.
16#
17#  3. Neither the name of the copyright holder nor the names of its contributors
18#  may be used to endorse or promote products derived from this software
19#  without specific prior written permission.
20#
21#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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31#  POSSIBILITY OF SUCH DAMAGE.
32#
33#  Author: Brad Beckmann
34#
35
36import m5
37from m5.objects import *
38from m5.defines import buildEnv
39from m5.util import addToPath
40import os, optparse, sys
41
42m5.util.addToPath('../configs/')
43
44from ruby import Ruby
45from common import Options
46
47parser = optparse.OptionParser()
48Options.addCommonOptions(parser)
49
50# add the gpu specific options expected by the the gpu and gpu_RfO
51parser.add_option("-u", "--num-compute-units", type="int", default=8,
52                  help="number of compute units in the GPU")
53parser.add_option("--num-cp", type="int", default=0,
54                  help="Number of GPU Command Processors (CP)")
55parser.add_option("--simds-per-cu", type="int", default=4, help="SIMD units" \
56                  "per CU")
57parser.add_option("--wf-size", type="int", default=64,
58                  help="Wavefront size(in workitems)")
59parser.add_option("--wfs-per-simd", type="int", default=10, help="Number of " \
60                  "WF slots per SIMD")
61
62# Add the ruby specific and protocol specific options
63Ruby.define_options(parser)
64
65(options, args) = parser.parse_args()
66
67#
68# Set the default cache size and associativity to be very small to encourage
69# races between requests and writebacks.
70#
71options.l1d_size="256B"
72options.l1i_size="256B"
73options.l2_size="512B"
74options.l3_size="1kB"
75options.l1d_assoc=2
76options.l1i_assoc=2
77options.l2_assoc=2
78options.l3_assoc=2
79options.num_compute_units=8
80options.num_sqc=2
81
82# Check to for the GPU_RfO protocol.  Other GPU protocols are non-SC and will
83# not work with the Ruby random tester.
84assert(buildEnv['PROTOCOL'] == 'GPU_RfO')
85
86#
87# create the tester and system, including ruby
88#
89tester = RubyTester(check_flush = False, checks_to_complete = 100,
90                    wakeup_frequency = 10, num_cpus = options.num_cpus)
91
92# We set the testers as cpu for ruby to find the correct clock domains
93# for the L1 Objects.
94system = System(cpu = tester)
95
96# Dummy voltage domain for all our clock domains
97system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
98system.clk_domain = SrcClockDomain(clock = '1GHz',
99                                   voltage_domain = system.voltage_domain)
100
101system.mem_ranges = AddrRange('256MB')
102
103Ruby.create_system(options, False, system)
104
105# Create a separate clock domain for Ruby
106system.ruby.clk_domain = SrcClockDomain(clock = '1GHz',
107                                        voltage_domain = system.voltage_domain)
108
109tester.num_cpus = len(system.ruby._cpu_ports)
110
111#
112# The tester is most effective when randomization is turned on and
113# artifical delay is randomly inserted on messages
114#
115system.ruby.randomization = True
116
117for ruby_port in system.ruby._cpu_ports:
118    #
119    # Tie the ruby tester ports to the ruby cpu read and write ports
120    #
121    if ruby_port.support_data_reqs and ruby_port.support_inst_reqs:
122        tester.cpuInstDataPort = ruby_port.slave
123    elif ruby_port.support_data_reqs:
124        tester.cpuDataPort = ruby_port.slave
125    elif ruby_port.support_inst_reqs:
126        tester.cpuInstPort = ruby_port.slave
127
128    # Do not automatically retry stalled Ruby requests
129    ruby_port.no_retry_on_stall = True
130
131    #
132    # Tell the sequencer this is the ruby tester so that it
133    # copies the subblock back to the checker
134    #
135    ruby_port.using_ruby_tester = True
136
137# -----------------------
138# run simulation
139# -----------------------
140
141root = Root(full_system = False, system = system )
142root.system.mem_mode = 'timing'
143