ruby_gpu_random_test.py revision 13731
1# Copyright (c) 2010-2015 Advanced Micro Devices, Inc. 2# All rights reserved. 3# 4# For use for simulation and test purposes only 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions are met: 8# 9# 1. Redistributions of source code must retain the above copyright notice, 10# this list of conditions and the following disclaimer. 11# 12# 2. Redistributions in binary form must reproduce the above copyright notice, 13# this list of conditions and the following disclaimer in the documentation 14# and/or other materials provided with the distribution. 15# 16# 3. Neither the name of the copyright holder nor the names of its 17# contributors may be used to endorse or promote products derived from this 18# software without specific prior written permission. 19# 20# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30# POSSIBILITY OF SUCH DAMAGE. 31# 32# Authors: Brad Beckmann 33 34from __future__ import print_function 35 36import m5 37from m5.objects import * 38from m5.defines import buildEnv 39from m5.util import addToPath 40import os, optparse, sys 41 42addToPath('../') 43 44from common import Options 45from ruby import Ruby 46 47# Get paths we might need. 48config_path = os.path.dirname(os.path.abspath(__file__)) 49config_root = os.path.dirname(config_path) 50m5_root = os.path.dirname(config_root) 51 52parser = optparse.OptionParser() 53Options.addNoISAOptions(parser) 54 55parser.add_option("--maxloads", metavar="N", default=100, 56 help="Stop after N loads") 57parser.add_option("-f", "--wakeup_freq", metavar="N", default=10, 58 help="Wakeup every N cycles") 59parser.add_option("-u", "--num-compute-units", type="int", default=1, 60 help="number of compute units in the GPU") 61parser.add_option("--num-cp", type="int", default=0, 62 help="Number of GPU Command Processors (CP)") 63# not super important now, but to avoid putting the number 4 everywhere, make 64# it an option/knob 65parser.add_option("--cu-per-sqc", type="int", default=4, help="number of CUs \ 66 sharing an SQC (icache, and thus icache TLB)") 67parser.add_option("--simds-per-cu", type="int", default=4, help="SIMD units" \ 68 "per CU") 69parser.add_option("--wf-size", type="int", default=64, 70 help="Wavefront size(in workitems)") 71parser.add_option("--wfs-per-simd", type="int", default=10, help="Number of " \ 72 "WF slots per SIMD") 73 74# 75# Add the ruby specific and protocol specific options 76# 77Ruby.define_options(parser) 78 79exec(compile( \ 80 open(os.path.join(config_root, "common", "Options.py")).read(), \ 81 os.path.join(config_root, "common", "Options.py"), 'exec')) 82 83(options, args) = parser.parse_args() 84 85# 86# Set the default cache size and associativity to be very small to encourage 87# races between requests and writebacks. 88# 89options.l1d_size="256B" 90options.l1i_size="256B" 91options.l2_size="512B" 92options.l3_size="1kB" 93options.l1d_assoc=2 94options.l1i_assoc=2 95options.l2_assoc=2 96options.l3_assoc=2 97 98# This file can support multiple compute units 99assert(options.num_compute_units >= 1) 100n_cu = options.num_compute_units 101 102options.num_sqc = int((n_cu + options.cu_per_sqc - 1) // options.cu_per_sqc) 103 104if args: 105 print("Error: script doesn't take any positional arguments") 106 sys.exit(1) 107 108# 109# Create the ruby random tester 110# 111 112# Check to for the GPU_RfO protocol. Other GPU protocols are non-SC and will 113# not work with the Ruby random tester. 114assert(buildEnv['PROTOCOL'] == 'GPU_RfO') 115 116# The GPU_RfO protocol does not support cache flushes 117check_flush = False 118 119tester = RubyTester(check_flush=check_flush, 120 checks_to_complete=options.maxloads, 121 wakeup_frequency=options.wakeup_freq, 122 deadlock_threshold=1000000) 123 124# 125# Create the M5 system. Note that the Memory Object isn't 126# actually used by the rubytester, but is included to support the 127# M5 memory size == Ruby memory size checks 128# 129system = System(cpu=tester, mem_ranges=[AddrRange(options.mem_size)]) 130 131# Create a top-level voltage domain and clock domain 132system.voltage_domain = VoltageDomain(voltage=options.sys_voltage) 133 134system.clk_domain = SrcClockDomain(clock=options.sys_clock, 135 voltage_domain=system.voltage_domain) 136 137Ruby.create_system(options, False, system) 138 139# Create a seperate clock domain for Ruby 140system.ruby.clk_domain = SrcClockDomain(clock=options.ruby_clock, 141 voltage_domain=system.voltage_domain) 142 143tester.num_cpus = len(system.ruby._cpu_ports) 144 145# 146# The tester is most effective when randomization is turned on and 147# artifical delay is randomly inserted on messages 148# 149system.ruby.randomization = True 150 151for ruby_port in system.ruby._cpu_ports: 152 153 # 154 # Tie the ruby tester ports to the ruby cpu read and write ports 155 # 156 if ruby_port.support_data_reqs and ruby_port.support_inst_reqs: 157 tester.cpuInstDataPort = ruby_port.slave 158 elif ruby_port.support_data_reqs: 159 tester.cpuDataPort = ruby_port.slave 160 elif ruby_port.support_inst_reqs: 161 tester.cpuInstPort = ruby_port.slave 162 163 # Do not automatically retry stalled Ruby requests 164 ruby_port.no_retry_on_stall = True 165 166 # 167 # Tell each sequencer this is the ruby tester so that it 168 # copies the subblock back to the checker 169 # 170 ruby_port.using_ruby_tester = True 171 172# ----------------------- 173# run simulation 174# ----------------------- 175 176root = Root( full_system = False, system = system ) 177root.system.mem_mode = 'timing' 178 179# Not much point in this being higher than the L1 latency 180m5.ticks.setGlobalFrequency('1ns') 181 182# instantiate configuration 183m5.instantiate() 184 185# simulate until program terminates 186exit_event = m5.simulate(options.abs_max_tick) 187 188print('Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()) 189