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#!/usr/bin/env python
from __future__ import print_function
import config.config as conf
import experiment.litmus_util as lu
import os
import re
import shutil
import traceback
from common import load_params
from optparse import OptionParser
from experiment.executable.executable import Executable
from experiment.experiment import Experiment,ExperimentDone
from experiment.proc_entry import ProcEntry
def InvalidKernel(Exception):
def __init__(self, kernel):
self.kernel = kernel
def parse_args():
parser = OptionParser("usage: %prog [options] [sched_file]... [exp_dir]...")
parser.add_option('-s', '--scheduler', dest='scheduler',
help='scheduler for all experiments')
parser.add_option('-d', '--duration', dest='duration', type='int',
help='duration (seconds) of tasks')
parser.add_option('-o', '--out-dir', dest='out_dir',
help='directory for data output', default=("%s/run-data"%os.getcwd()))
parser.add_option('-p', '--params', dest='param_file',
help='file with experiment parameters')
parser.add_option('-c', '--schedule-file', dest='sched_file',
help='name of schedule files within directories',
default=conf.DEFAULTS['sched_file'])
parser.add_option('-f', '--force', action='store_true', default=False,
dest='force', help='overwrite existing data')
return parser.parse_args()
def convert_data(data):
'''Convert a non-python schedule file into the python format'''
regex = re.compile(
r"(?P<PROC>^"
r"(?P<HEADER>/proc/[\w\-]+?/)?"
r"(?P<ENTRY>[\w\-\/]+)"
r"\s*{\s*(?P<CONTENT>.*?)\s*?}$)|"
r"(?P<SPIN>^"
r"(?P<TYPE>\w+?spin)?\s*"
r"(?P<ARGS>[\w\-_\d\. \=]+)\s*$)",
re.S|re.I|re.M)
procs = []
spins = []
for match in regex.finditer(data):
if match.group("PROC"):
header = match.group("HEADER") or "/proc/litmus/"
loc = "{}{}".format(header, match.group("ENTRY"))
proc = (loc, match.group("CONTENT"))
procs.append(proc)
else:
prog = match.group("TYPE") or "rtspin"
spin = (prog, match.group("ARGS"))
spins.append(spin)
return {'proc' : procs, 'spin' : spins}
def fix_paths(schedule, exp_dir, sched_file):
'''Replace relative paths of command line arguments with absolute ones.'''
for (idx, (spin, args)) in enumerate(schedule['spin']):
for arg in re.split(" +", args):
abspath = "%s/%s" % (exp_dir, arg)
if os.path.exists(abspath):
args = args.replace(arg, abspath)
break
elif re.match(r'.*\w+\.\w+', arg):
print("WARNING: non-existent file '%s' may be referenced:\n\t%s"
% (arg, sched_file))
schedule['spin'][idx] = (spin, args)
def load_experiment(sched_file, scheduler, duration, param_file, out_dir):
if not os.path.isfile(sched_file):
raise IOError("Cannot find schedule file: %s" % sched_file)
dirname = os.path.split(sched_file)[0]
params = {}
kernel = ""
param_file = param_file or \
"%s/%s" % (dirname, conf.DEFAULTS['params_file'])
if os.path.isfile(param_file):
params = load_params(param_file)
scheduler = scheduler or params[conf.PARAMS['sched']]
duration = duration or params[conf.PARAMS['dur']]
# Experiments can specify required kernel name
if conf.PARAMS['kernel'] in params:
kernel = params[conf.PARAMS['kernel']]
duration = duration or conf.DEFAULTS['duration']
if not scheduler:
raise IOError("Parameter scheduler not specified in %s" % (param_file))
# Parse schedule file's intentions
schedule = load_schedule(sched_file)
work_dir = "%s/tmp" % dirname
fix_paths(schedule, os.path.split(sched_file)[0], sched_file)
run_exp(sched_file, schedule, scheduler, kernel, duration, work_dir, out_dir)
# Save parameters used to run experiment in out_dir
# Cycles is saved here for accurate overhead calculations later
out_params = dict(params.items() +
[(conf.PARAMS['sched'], scheduler),
(conf.PARAMS['dur'], duration),
(conf.PARAMS['cycles'], lu.cpu_freq())])
with open("%s/%s" % (out_dir, conf.DEFAULTS['params_file']), 'w') as f:
f.write(str(out_params))
def load_schedule(fname):
with open(fname, 'r') as f:
data = f.read().strip()
try:
schedule = eval(data)
except:
schedule = convert_data(data)
return schedule
def run_exp(name, schedule, scheduler, kernel, duration, work_dir, out_dir):
proc_entries = []
executables = []
if kernel and not lu.uname_matches(kernel):
raise InvalidKernel(kernel)
# Parse values for proc entries
for entry_conf in schedule['proc']:
path = entry_conf[0]
data = entry_conf[1]
if not os.path.exists(path):
raise IOError("Invalid proc path %s: %s" % (path, name))
proc_entries += [ProcEntry(path, data)]
# Parse spinners
for spin_conf in schedule['spin']:
if isinstance(spin_conf, str):
# Just a string defaults to default spin
(spin, args) = (conf.DEFAULTS['spin'], spin_conf)
else:
# Otherwise its a pair, the type and the args
if len(spin_conf) != 2:
raise IOError("Invalid spin conf %s: %s" % (spin_conf, name))
(spin, args) = (spin_conf[0], spin_conf[1])
if not conf.BINS[spin]:
raise IndexError("No knowledge of program %s: %s" % (spin, name))
real_spin = conf.BINS[spin]
real_args = ['-w'] + args.split() + [duration]
if not lu.is_executable(real_spin):
raise OSError("Cannot run spin %s: %s" % (real_spin, name))
executables += [Executable(real_spin, real_args)]
exp = Experiment(name, scheduler, work_dir, out_dir,
proc_entries, executables)
exp.run_exp()
def main():
opts, args = parse_args()
scheduler = opts.scheduler
duration = opts.duration
param_file = opts.param_file
out_base = os.path.abspath(opts.out_dir)
args = args or [opts.sched_file]
created = False
if not os.path.exists(out_base):
created = True
os.mkdir(out_base)
done = 0
succ = 0
failed = 0
invalid = 0
for exp in args:
path = "%s/%s" % (os.getcwd(), exp)
out_dir = "%s/%s" % (out_base, os.path.split(exp.strip('/'))[1])
if not os.path.exists(path):
raise IOError("Invalid experiment: %s" % path)
if opts.force and os.path.exists(out_dir):
shutil.rmtree(out_dir)
if os.path.isdir(exp):
path = "%s/%s" % (path, opts.sched_file)
try:
load_experiment(path, scheduler, duration, param_file, out_dir)
succ += 1
except ExperimentDone:
done += 1
print("Experiment '%s' already completed at '%s'" % (exp, out_base))
except InvalidKernel:
invalid += 1
except:
print("Failed experiment %s" % exp)
traceback.print_exc()
failed += 1
if not os.listdir(out_base) and created and not succ:
os.rmdir(out_base)
print("Experiments run:\t%d" % len(args))
print(" Successful:\t\t%d" % succ)
print(" Failed:\t\t%d" % failed)
print(" Already Done:\t\t%d" % done)
print(" Wrong Kernel:\t\t%d" % invalid)
if __name__ == '__main__':
main()
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