def load_checkpoint_file(domain_name='domain', checkpoint_dir='.', time=None):
from os.path import join
if numprocs > 1:
domain_name = domain_name + '_P{}_{}'.format(numprocs, myid)
if time is None:
# will pull out the last available time
times = _get_checkpoint_times(domain_name, checkpoint_dir)
times = list(times)
times.sort()
#print times
else:
times = [float(time)]
if len(times) == 0: raise Exception("Unable to open checkpoint file")
for time in reversed(times):
pickle_name = join(checkpoint_dir,
domain_name) + '_' + str(time) + '.pickle'
#print pickle_name
try:
try:
import dill as pickle
except:
import pickle
domain = pickle.load(open(pickle_name, 'rb'))
success = True
except:
success = False
#print success
overall = success
for cpu in range(numprocs):
if cpu != myid:
send(success, cpu)
for cpu in range(numprocs):
if cpu != myid:
overall = overall & receive(cpu)
barrier()
#print myid, overall, success, time
if overall: break
if not overall: raise Exception("Unable to open checkpoint file")
domain.last_walltime = walltime()
domain.communication_time = 0.0
domain.communication_reduce_time = 0.0
domain.communication_broadcast_time = 0.0
return domain
def load_checkpoint_file(domain_name="domain", checkpoint_dir=".", time=None):
from os.path import join
if numprocs > 1:
domain_name = domain_name + "_P{}_{}".format(numprocs, myid)
if time is None:
# will pull out the last available time
times = _get_checkpoint_times(domain_name, checkpoint_dir)
times = list(times)
times.sort()
# print times
else:
times = [float(time)]
if len(times) == 0:
raise Exception, "Unable to open checkpoint file"
for time in reversed(times):
pickle_name = join(checkpoint_dir, domain_name) + "_" + str(time) + ".pickle"
# print pickle_name
try:
import cPickle
domain = cPickle.load(open(pickle_name, "rb"))
success = True
except:
success = False
# print success
overall = success
for cpu in range(numprocs):
if cpu != myid:
send(success, cpu)
for cpu in range(numprocs):
if cpu != myid:
overall = overall & receive(cpu)
barrier()
# print myid, overall, success, time
if overall:
break
if not overall:
raise Exception, "Unable to open checkpoint file"
domain.last_walltime = walltime()
domain.communication_time = 0.0
domain.communication_reduce_time = 0.0
domain.communication_broadcast_time = 0.0
return domain
def _get_checkpoint_times(domain_name, checkpoint_dir):
import os
times = set()
for (path, directory, filenames) in os.walk(checkpoint_dir):
#print filenames
#print directory
if len(filenames) == 0:
return None
else:
for filename in filenames:
filebase = os.path.splitext(filename)[0].rpartition("_")
time = filebase[-1]
domain_name_base = filebase[0]
if domain_name_base == domain_name :
#print domain_name_base, time
times.add(float(time))
#times.sort()
#times = set(times)
#print times
combined = times
for cpu in range(numprocs):
if myid != cpu:
send(times,cpu)
rec = receive(cpu)
#print rec
combined = combined & rec
#combined = list(combined).sort()
#print combined
return combined
def _get_checkpoint_times(domain_name, checkpoint_dir):
import os
times = set()
for (path, directory, filenames) in os.walk(checkpoint_dir):
#print filenames
#print directory
if len(filenames) == 0:
return None
else:
for filename in filenames:
filebase = os.path.splitext(filename)[0].rpartition("_")
time = filebase[-1]
domain_name_base = filebase[0]
if domain_name_base == domain_name:
#print domain_name_base, time
times.add(float(time))
#times.sort()
#times = set(times)
#print times
combined = times
for cpu in range(numprocs):
if myid != cpu:
send(times, cpu)
rec = receive(cpu)
#print rec
combined = combined & rec
#combined = list(combined).sort()
#print combined
return combined
