--- /dev/null
+# Copyright (c) 2014 Mark D. Hill and David A. Wood
+# 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.
+
+
+from ConfigParser import ConfigParser
+import string, sys, subprocess, os
+
+# Compile DSENT to generate the Python module and then import it.
+# This script assumes it is executed from the gem5 root.
+print("Attempting compilation")
+from subprocess import call
+
+src_dir = 'ext/dsent'
+build_dir = 'build/ext/dsent'
+
+if not os.path.exists(build_dir):
+ os.makedirs(build_dir)
+os.chdir(build_dir)
+
+error = call(['cmake', '../../../%s' % src_dir])
+if error:
+ print("Failed to run cmake")
+ exit(-1)
+
+error = call(['make'])
+if error:
+ print("Failed to run make")
+ exit(-1)
+
+print("Compiled dsent")
+os.chdir("../../../")
+sys.path.append("build/ext/dsent")
+import dsent
+
+# Parse gem5 config.ini file for the configuration parameters related to
+# the on-chip network.
+def parseConfig(config_file):
+ config = ConfigParser()
+ if not config.read(config_file):
+ print("ERROR: config file '", config_file, "' not found")
+ sys.exit(1)
+
+ if not config.has_section("system.ruby.network"):
+ print("ERROR: Ruby network not found in '", config_file)
+ sys.exit(1)
+
+ if config.get("system.ruby.network", "type") != "GarnetNetwork_d" :
+ print("ERROR: Garnet network not used in '", config_file)
+ sys.exit(1)
+
+ number_of_virtual_networks = config.getint("system.ruby.network",
+ "number_of_virtual_networks")
+ vcs_per_vnet = config.getint("system.ruby.network", "vcs_per_vnet")
+
+ buffers_per_data_vc = config.getint("system.ruby.network",
+ "buffers_per_data_vc")
+ buffers_per_control_vc = config.getint("system.ruby.network",
+ "buffers_per_ctrl_vc")
+
+ ni_flit_size_bits = 8 * config.getint("system.ruby.network",
+ "ni_flit_size")
+
+ routers = config.get("system.ruby.network", "routers").split()
+ int_links = config.get("system.ruby.network", "int_links").split()
+ ext_links = config.get("system.ruby.network", "ext_links").split()
+
+ return (config, number_of_virtual_networks, vcs_per_vnet,
+ buffers_per_data_vc, buffers_per_control_vc, ni_flit_size_bits,
+ routers, int_links, ext_links)
+
+
+def getClock(obj, config):
+ if config.get(obj, "type") == "SrcClockDomain":
+ return config.getint(obj, "clock")
+
+ if config.get(obj, "type") == "DerivedClockDomain":
+ source = config.get(obj, "clk_domain")
+ divider = config.getint(obj, "clk_divider")
+ return getClock(source, config) / divider
+
+ source = config.get(obj, "clk_domain")
+ return getClock(source, config)
+
+
+## Compute the power consumed by the given router
+def computeRouterPowerAndArea(router, stats_file, config, int_links, ext_links,
+ number_of_virtual_networks, vcs_per_vnet,
+ buffers_per_data_vc, buffers_per_control_vc,
+ ni_flit_size_bits):
+ frequency = getClock(router, config)
+ num_ports = 0
+
+ for int_link in int_links:
+ if config.get(int_link, "node_a") == router or \
+ config.get(int_link, "node_b") == router:
+ num_ports += 1
+
+ for ext_link in ext_links:
+ if config.get(ext_link, "int_node") == router:
+ num_ports += 1
+
+ power = dsent.computeRouterPowerAndArea(frequency, num_ports, num_ports,
+ number_of_virtual_networks,
+ vcs_per_vnet, buffers_per_data_vc,
+ ni_flit_size_bits)
+
+ print("%s Power: " % router, power)
+
+
+## Compute the power consumed by the given link
+def computeLinkPower(link, stats_file, config, sim_seconds):
+ frequency = getClock(link + ".nls0", config)
+ power = dsent.computeLinkPower(frequency)
+ print("%s.nls0 Power: " % link, power)
+
+ frequency = getClock(link + ".nls1", config)
+ power = dsent.computeLinkPower(frequency)
+ print("%s.nls1 Power: " % link, power)
+
+
+def parseStats(stats_file, config, router_config_file, link_config_file,
+ routers, int_links, ext_links, number_of_virtual_networks,
+ vcs_per_vnet, buffers_per_data_vc, buffers_per_control_vc,
+ ni_flit_size_bits):
+
+ # Open the stats.txt file and parse it to for the required numbers
+ # and the number of routers.
+ try:
+ stats_handle = open(stats_file, 'r')
+ stats_handle.close()
+ except IOError:
+ print("Failed to open ", stats_file, " for reading")
+ exit(-1)
+
+ # Now parse the stats
+ pattern = "sim_seconds"
+ lines = string.split(subprocess.check_output(
+ ["grep", pattern, stats_file]), '\n', -1)
+ assert len(lines) >= 1
+
+ ## Assume that the first line is the one required
+ [l1,l2,l3] = lines[0].partition(" ")
+ l4 = l3.strip().partition(" ")
+ simulation_length_in_seconds = float(l4[0])
+
+ # Initialize DSENT with a configuration file
+ dsent.initialize(router_config_file)
+
+ # Compute the power consumed by the routers
+ for router in routers:
+ computeRouterPowerAndArea(router, stats_file, config, int_links,
+ ext_links, number_of_virtual_networks,
+ vcs_per_vnet, buffers_per_data_vc,
+ buffers_per_control_vc, ni_flit_size_bits)
+
+ # Finalize DSENT
+ dsent.finalize()
+
+ # Initialize DSENT with a configuration file
+ dsent.initialize(link_config_file)
+
+ # Compute the power consumed by the links
+ for link in int_links:
+ computeLinkPower(link, stats_file, config,
+ simulation_length_in_seconds)
+ for link in ext_links:
+ computeLinkPower(link, stats_file, config,
+ simulation_length_in_seconds)
+
+ # Finalize DSENT
+ dsent.finalize()
+
+# This script parses the config.ini and the stats.txt from a run and
+# generates the power and the area of the on-chip network using DSENT
+def main():
+ if len(sys.argv) != 5:
+ print("Usage: ", sys.argv[0], " <gem5 root directory> " \
+ "<simulation directory> <router config file> <link config file>")
+ exit(-1)
+
+ print("WARNING: configuration files for DSENT and McPAT are separate. " \
+ "Changes made to one are not reflected in the other.")
+
+ (config, number_of_virtual_networks, vcs_per_vnet, buffers_per_data_vc,
+ buffers_per_control_vc, ni_flit_size_bits, routers, int_links,
+ ext_links) = parseConfig("%s/%s/config.ini" % (sys.argv[1], sys.argv[2]))
+
+ parseStats("%s/%s/stats.txt" % (sys.argv[1], sys.argv[2]), config,
+ sys.argv[3], sys.argv[4], routers, int_links, ext_links,
+ number_of_virtual_networks, vcs_per_vnet, buffers_per_data_vc,
+ buffers_per_control_vc, ni_flit_size_bits)
+
+if __name__ == "__main__":
+ main()
projects / gem5.git / commitdiff