gem5/util/batch/job.py

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#!/usr/bin/env python2
# Copyright (c) 2006 The Regents of The University of Michigan
# 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: Kevin Lim
import os, os.path, shutil, signal, socket, sys
from os import environ as env
from os.path import join as joinpath, expanduser
def date():
import time
return time.strftime('%a %b %e %H:%M:%S %Z %Y', time.localtime())
def cleandir(dir):
for root, dirs, files in os.walk(dir, False):
for name in files:
os.remove(joinpath(root, name))
for name in dirs:
os.rmdir(joinpath(root, name))
class rsync:
def __init__(self):
self.sudo = False
self.rsync = 'rsync'
self.compress = False
self.archive = True
self.delete = False
self.options = ''
def do(self, src, dst):
args = []
if self.sudo:
args.append('sudo')
args.append(self.rsync)
if (self.archive):
args.append('-a')
if (self.compress):
args.append('-z')
if (self.delete):
args.append('--delete')
if len(self.options):
args.append(self.options)
args.append(src)
args.append(dst)
return os.spawnvp(os.P_WAIT, args[0], args)
class JobDir(object):
def __init__(self, dir):
self.dir = dir
def file(self, filename):
return joinpath(self.dir, filename)
def create(self):
if os.path.exists(self.dir):
if not os.path.isdir(self.dir):
sys.exit('%s is not a directory. Cannot build job' % self.dir)
else:
os.mkdir(self.dir)
def exists(self):
return os.path.isdir(self.dir)
def clean(self):
cleandir(self.dir)
def hasfile(self, filename):
return os.path.isfile(self.file(filename))
def echofile(self, filename, string):
filename = self.file(filename)
try:
f = file(filename, 'w')
print >>f, string
f.flush()
f.close()
except IOError,e:
sys.exit(e)
def rmfile(self, filename):
filename = self.file(filename)
if os.path.isfile(filename):
os.unlink(filename)
def readval(self, filename):
filename = self.file(filename)
f = file(filename, 'r')
value = f.readline().strip()
f.close()
return value
def setstatus(self, string):
filename = self.file('.status')
try:
f = file(filename, 'a')
print >>f, string
f.flush()
f.close()
except IOError,e:
sys.exit(e)
def getstatus(self):
filename = self.file('.status')
try:
f = file(filename, 'r')
except IOError, e:
return 'none'
# fast forward to the end
for line in f: pass
# the first word on the last line is the status
return line.split(' ')[0]
def __str__(self):
return self.dir
if __name__ == '__main__':
import platform
binaries = { 'i686' : 'm5.i386',
'x86_64' : 'm5.amd64' }
binary = binaries[platform.machine()]
cwd = os.getcwd()
rootdir = env.setdefault('ROOTDIR', os.path.dirname(cwd))
oar_jobid = int(env['OAR_JOBID'])
oar_jobname = os.path.basename(cwd)
#pbs_jobname = env['PBS_JOBNAME']
basedir = joinpath(rootdir, 'Base')
jobname = env.setdefault('JOBNAME', oar_jobname)
jobfile = env.setdefault('JOBFILE', joinpath(rootdir, 'Test.py'))
outdir = env.setdefault('OUTPUT_DIR', cwd)
env['POOLJOB'] = 'True'
if os.path.isdir("/work"):
workbase = "/work"
else:
workbase = "/tmp/"
workdir = joinpath(workbase, '%s.%s' % (env['USER'], oar_jobid))
host = socket.gethostname()
os.umask(0022)
jobdir = JobDir(outdir)
started = date()
jobdir.echofile('.running', started)
jobdir.rmfile('.queued')
jobdir.echofile('.host', host)
jobdir.setstatus('running on %s on %s' % (host, started))
if os.path.isdir(workdir):
cleandir(workdir)
else:
os.mkdir(workdir)
if False and os.path.isdir('/z/dist'):
sync = rsync()
sync.delete = True
sync.sudo = True
sync.do('poolfs::dist/m5/', '/z/dist/m5/')
try:
os.chdir(workdir)
except OSError,e:
sys.exit(e)
os.symlink(jobdir.file('output'), 'status.out')
args = [ joinpath(basedir, binary), joinpath(basedir, 'run.py') ]
if not len(args):
sys.exit("no arguments")
print 'starting job... %s' % started
print ' '.join(args)
print
sys.stdout.flush()
childpid = os.fork()
if not childpid:
# Execute command
sys.stdin.close()
fd = os.open(jobdir.file("output"),
os.O_WRONLY | os.O_CREAT | os.O_TRUNC)
os.dup2(fd, sys.stdout.fileno())
os.dup2(fd, sys.stderr.fileno())
os.execvp(args[0], args)
def handler(signum, frame):
if childpid != 0:
os.kill(childpid, signum)
signal.signal(signal.SIGHUP, handler)
signal.signal(signal.SIGINT, handler)
signal.signal(signal.SIGQUIT, handler)
signal.signal(signal.SIGTERM, handler)
signal.signal(signal.SIGCONT, handler)
signal.signal(signal.SIGUSR1, handler)
signal.signal(signal.SIGUSR2, handler)
done = 0
while not done:
try:
thepid,ec = os.waitpid(childpid, 0)
if ec:
print 'Exit code ', ec
status = 'failure'
else:
status = 'success'
done = 1
except OSError:
pass
complete = date()
print '\njob complete... %s' % complete
jobdir.echofile('.%s' % status, complete)
jobdir.rmfile('.running')
jobdir.setstatus('%s on %s' % (status, complete))