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# Copyright (c) 2009 The Regents of The University of Michigan
# Copyright (c) 2011 Advanced Micro Devices, Inc.
# Copyright (c) 2013 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.
#
# Authors: Lisa Hsu
# Nilay Vaish
from ConfigParser import ConfigParser
import gzip
import sys, re, os
class myCP(ConfigParser):
def __init__(self):
ConfigParser.__init__(self)
def optionxform(self, optionstr):
return optionstr
def aggregate(output_dir, cpts, no_compress, memory_size):
merged_config = None
page_ptr = 0
output_path = output_dir
if not os.path.isdir(output_path):
os.system("mkdir -p " + output_path)
agg_mem_file = open(output_path + "/system.physmem.store0.pmem", "wb+")
agg_config_file = open(output_path + "/m5.cpt", "wb+")
if not no_compress:
merged_mem = gzip.GzipFile(fileobj= agg_mem_file, mode="wb")
max_curtick = 0
num_digits = len(str(len(cpts)-1))
for (i, arg) in enumerate(cpts):
print arg
merged_config = myCP()
config = myCP()
config.readfp(open(cpts[i] + "/m5.cpt"))
for sec in config.sections():
if re.compile("cpu").search(sec):
newsec = re.sub("cpu", "cpu" + str(i).zfill(num_digits), sec)
merged_config.add_section(newsec)
items = config.items(sec)
for item in items:
if item[0] == "paddr":
merged_config.set(newsec, item[0], int(item[1]) + (page_ptr << 12))
continue
merged_config.set(newsec, item[0], item[1])
if re.compile("workload.FdMap256$").search(sec):
merged_config.set(newsec, "M5_pid", i)
elif sec == "system":
pass
elif sec == "Globals":
tick = config.getint(sec, "curTick")
if tick > max_curtick:
max_curtick = tick
else:
if i == len(cpts)-1:
merged_config.add_section(sec)
for item in config.items(sec):
merged_config.set(sec, item[0], item[1])
if i != len(cpts)-1:
merged_config.write(agg_config_file)
### memory stuff
pages = int(config.get("system", "pagePtr"))
page_ptr = page_ptr + pages
print "pages to be read: ", pages
f = open(cpts[i] + "/system.physmem.store0.pmem", "rb")
gf = gzip.GzipFile(fileobj=f, mode="rb")
x = 0
while x < pages:
bytesRead = gf.read(1 << 12)
if not no_compress:
merged_mem.write(bytesRead)
else:
agg_mem_file.write(bytesRead)
x += 1
gf.close()
f.close()
merged_config.add_section("system")
merged_config.set("system", "pagePtr", page_ptr)
merged_config.set("system", "nextPID", len(cpts))
file_size = page_ptr * 4 * 1024
dummy_data = "".zfill(4096)
while file_size < memory_size:
if not no_compress:
merged_mem.write(dummy_data)
else:
agg_mem_file.write(dummy_data)
file_size += 4 * 1024
page_ptr += 1
print "WARNING: "
print "Make sure the simulation using this checkpoint has at least ",
print page_ptr, "x 4K of memory"
merged_config.set("system.physmem.store0", "range_size", page_ptr * 4 * 1024)
merged_config.add_section("Globals")
merged_config.set("Globals", "curTick", max_curtick)
merged_config.write(agg_config_file)
if not no_compress:
merged_mem.close()
agg_mem_file.close()
else:
agg_mem_file.close()
if __name__ == "__main__":
from argparse import ArgumentParser
parser = ArgumentParser("usage: %prog [options] <directory names which "\
"hold the checkpoints to be combined>")
parser.add_argument("-o", "--output-dir", action="store",
help="Output directory")
parser.add_argument("-c", "--no-compress", action="store_true")
parser.add_argument("--cpts", nargs='+')
parser.add_argument("--memory-size", action="store", type=int)
# Assume x86 ISA. Any other ISAs would need extra stuff in this script
# to appropriately parse their page tables and understand page sizes.
options = parser.parse_args()
print options.cpts, len(options.cpts)
if len(options.cpts) <= 1:
parser.error("You must specify atleast two checkpoint files that "\
"need to be combined.")
aggregate(options.output_dir, options.cpts, options.no_compress,
options.memory_size)
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