def __init__(self, host, prefix, jobdir, max_time=1440, properties=None):
try:
xenon.init(log_level='INFO')
except ValueError:
pass # xenon is already initialized
self.max_time = max_time
urlsplit = self.host.split('://')
if len(urlsplit) != 2:
raise ValueError("host must contain a scheme and a "
"hostname, syntax `scheme://host`.")
self.scheme, self.hostname = urlsplit
if properties is not None:
self.private_key = properties.get('private-key')
self.password = properties.get('password')
self.xenon_properties = xenon.conversions.dict_to_HashMap({
key[len('xenon-property-'):]: value
for key, value in properties.items()
if key.startswith('xenon-property-')
})
self.scheduler_properties = xenon.conversions.dict_to_HashMap({
key[len('scheduler-property-'):]: value
for key, value in properties.items()
if key.startswith('scheduler-property-')
})
else:
self.xenon_properties = None
self.scheduler_properties = None
self.private_key = None
self.password = None
def __init__(self, log_level='ERROR'):
if not XenonKeeper.is_initialized:
xenon.init(log_level=log_level) # noqa
XenonKeeper.is_initialized = True
self._x = xenon.Xenon()
self.jobs = self._x.jobs()
self.credentials = self._x.credentials()
self._schedulers = {}
def make_init():
"""
Initialize Xenon.
After first call, this is a no-op, since jpype cannot be reinitialized.
"""
# cannot initialize Java classes now
with pytest.raises(EnvironmentError):
xenon.JavaClass('java.util.Arrays').asList([])
# Override log_level to get more details on the internals, e.g. 'DEBUG'
xenon.init()
# can initialize Java classes now
xenon.JavaClass('java.util.Arrays').asList([])
def xenon_server(request):
print("============== Starting Xenon-GRPC server ================")
m = xenon.init(do_not_exit=True, disable_tls=False, log_level='INFO')
yield m
print("============== Closing Xenon-GRPC server =================")
for scheduler in xenon.Scheduler.list_schedulers():
jobs = list(scheduler.get_jobs())
statuses = scheduler.get_job_statuses(jobs)
for status in statuses:
if status.running:
print("xenon job {} still running, cancelling ... ".format(
status.job.id),
end='')
try:
status = scheduler.cancel_job(status.job)
if not status.done:
scheduler.wait_until_done(status.job)
except xenon.XenonException:
print("not Ok")
else:
print("Ok")
m.__exit__(None, None, None)
from xenon import (
PasswordCredential, FileSystem, CopyRequest, Path, CopyStatus,
Scheduler, JobDescription)
import xenon
xenon.init(log_level='INFO')
tmpdir = Path('.')
location = 'localhost:10022'
#
# step 0: write our script
#
sleep_script = [
"#!/bin/bash",
"echo \"Sleeping for $1 second(s).\"",
"sleep $1"
]
with open(str(tmpdir / 'sleep.sh'), 'w') as f:
for line in sleep_script:
print(line, file=f)
#
# step 1: upload input files
#
# create the local filesystem representation
local_fs = FileSystem.create(adaptor='file')
# the remote system requires credentials, create them here:
A = add(1, 1)
B = sub(3, A)
multiples = [mul(add(i, B), A) for i in range(6)]
C = schedule(sum)(gather_all(multiples))
machine = Machine(
scheduler_adaptor='slurm',
location='ssh://fs0.das5.cs.vu.nl/home/jhidding',
credential=xenon.CertificateCredential(
username='******', certfile='/home/johannes/.ssh/id_rsa'),
jobs_properties={
'xenon.adaptors.schedulers.ssh.strictHostKeyChecking': 'false'
})
worker_config = XenonJobConfig(
prefix=Path('/home/jhidding/.local/share/workon/mcfly'),
working_dir='/home/jhidding/',
time_out=1000000000000,
verbose=False) # , options=['-C', 'TitanX', '--gres=gpu:1'])
result = run_xenon(C,
machine=machine,
worker_config=worker_config,
n_processes=2)
print("The answer is:", result)
xenon.init()
test_xenon_42_multi()
def xenon_server(request):
print("============== Starting Xenon-GRPC server ================")
m = xenon.init(do_not_exit=True, disable_tls=False, log_level='INFO')
yield m
m.__exit__(None, None, None)