Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

simulators/gem5/configs/example/ruby_network_test.py

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+# Copyright (c) 2006-2007 The Regents of The University of Michigan
+# Copyright (c) 2010 Advanced Micro Devices, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Ron Dreslinski
+#          Tushar Krishna
+
+import m5
+from m5.objects import *
+from m5.defines import buildEnv
+from m5.util import addToPath
+import os, optparse, sys
+addToPath('../common')
+addToPath('../ruby')
+
+import Options
+import Ruby
+
+# Get paths we might need.  It's expected this file is in m5/configs/example.
+config_path = os.path.dirname(os.path.abspath(__file__))
+config_root = os.path.dirname(config_path)
+m5_root = os.path.dirname(config_root)
+
+parser = optparse.OptionParser()
+Options.addCommonOptions(parser)
+
+parser.add_option("--synthetic", type="int", default=0,
+                  help="Synthetic Traffic type. 0 = Uniform Random,\
+                        1 = Tornado, 2 = Bit Complement")
+
+parser.add_option("-i", "--injectionrate", type="float", default=0.1,
+                  metavar="I",
+                  help="Injection rate in packets per cycle per node. \
+                        Takes decimal value between 0 to 1 (eg. 0.225). \
+                        Number of digits after 0 depends upon --precision.")
+
+parser.add_option("--precision", type="int", default=3,
+                  help="Number of digits of precision after decimal point\
+                        for injection rate")
+
+parser.add_option("--sim-cycles", type="int", default=1000,
+                   help="Number of simulation cycles")
+
+parser.add_option("--fixed-pkts", action="store_true",
+                  help="Network_test: inject --maxpackets and stop")
+
+parser.add_option("--maxpackets", type="int", default=1,
+                  help="Stop injecting after --maxpackets. \
+                        Works only with --fixed-pkts")
+
+#
+# Add the ruby specific and protocol specific options
+#
+Ruby.define_options(parser)
+
+execfile(os.path.join(config_root, "common", "Options.py"))
+
+(options, args) = parser.parse_args()
+
+if args:
+     print "Error: script doesn't take any positional arguments"
+     sys.exit(1)
+
+block_size = 64
+
+if options.num_cpus > block_size:
+     print "Error: Number of cores %d limited to %d because of false sharing" \
+           % (options.num_cpus, block_size)
+     sys.exit(1)
+
+
+cpus = [ NetworkTest(fixed_pkts=options.fixed_pkts,
+                     max_packets=options.maxpackets,
+                     sim_cycles=options.sim_cycles,
+                     traffic_type=options.synthetic,
+                     inj_rate=options.injectionrate,
+                     precision=options.precision,
+                     num_memories=options.num_dirs) \
+         for i in xrange(options.num_cpus) ]
+
+# create the desired simulated system
+system = System(cpu = cpus,
+                physmem = SimpleMemory())
+
+Ruby.create_system(options, system)
+
+i = 0
+for ruby_port in system.ruby._cpu_ruby_ports:
+     #
+     # Tie the cpu test ports to the ruby cpu port
+     #
+     cpus[i].test = ruby_port.slave
+     ruby_port.access_phys_mem = False
+
+     i += 1
+
+# -----------------------
+# run simulation
+# -----------------------
+
+root = Root( full_system = False, system = system )
+root.system.mem_mode = 'timing'
+
+# Not much point in this being higher than the L1 latency
+m5.ticks.setGlobalFrequency('1ns')
+
+# instantiate configuration
+m5.instantiate()
+
+# simulate until program terminates
+exit_event = m5.simulate(options.maxtick)
+
+print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()