from typing import Any, Callable, Dict, List, Optional, Set
import cloudpickle # type: ignore
+from overrides import overrides
from ansi import bg, fg, underline, reset
import argparse_utils
def make_cloud_pickle(fun, *args, **kwargs):
- logger.info(f"Making cloudpickled bundle at {fun.__name__}")
+ logger.debug(f"Making cloudpickled bundle at {fun.__name__}")
return cloudpickle.dumps((fun, args, kwargs))
self.histogram.add_item(duration)
return result
+ @overrides
def submit(self,
function: Callable,
*args,
*newargs,
**kwargs)
+ @overrides
def shutdown(self,
wait = True) -> None:
logger.debug(f'Shutting down threadpool executor {self.title}')
self.adjust_task_count(-1)
return result
+ @overrides
def submit(self,
function: Callable,
*args,
)
return result
+ @overrides
def shutdown(self, wait=True) -> None:
logger.debug(f'Shutting down processpool executor {self.title}')
self._process_executor.shutdown(wait)
class BundleDetails:
pickled_code: bytes
uuid: str
+ fname: str
worker: Optional[RemoteWorkerRecord]
username: Optional[str]
machine: Optional[str]
policy: RemoteWorkerSelectionPolicy) -> None:
super().__init__()
self.workers = workers
+ self.policy = policy
self.worker_count = 0
for worker in self.workers:
self.worker_count += worker.count
msg = f"We need somewhere to schedule work; count was {self.worker_count}"
logger.critical(msg)
raise Exception(msg)
- self.policy = policy
self.policy.register_worker_pool(self.workers)
self.cv = threading.Condition()
self._helper_executor = fut.ThreadPoolExecutor(
self.status = RemoteExecutorStatus(self.worker_count)
self.total_bundles_submitted = 0
logger.debug(
- f'Creating remote processpool with {self.worker_count} remote endpoints.'
+ f'Creating remote processpool with {self.worker_count} remote worker threads.'
)
def is_worker_available(self) -> bool:
bundle.worker = worker
machine = bundle.machine = worker.machine
username = bundle.username = worker.username
+ fname = bundle.fname
self.status.record_acquire_worker(worker, uuid)
logger.debug(f'Running bundle {uuid} on {worker}...')
return self.post_launch_work(bundle)
except Exception as e:
logger.exception(e)
- logger.info(f"Bundle {uuid} seems to have failed?!")
+ logger.info(f"{uuid}/{fname}: bundle seems to have failed?!")
if bundle.failure_count < config.config['executors_max_bundle_failures']:
return self.launch(bundle)
else:
- logger.info(f"Bundle {uuid} is poison, giving up on it.")
+ logger.info(f"{uuid}/{fname}: bundle is poison, giving up on it.")
return None
# Send input to machine if it's not local.
if hostname not in machine:
cmd = f'{RSYNC} {bundle.code_file} {username}@{machine}:{bundle.code_file}'
- logger.info(f"Copying work to {worker} via {cmd}")
+ logger.info(f"{uuid}/{fname}: Copying work to {worker} via {cmd}")
run_silently(cmd)
# Do it.
cmd = (f'{SSH} {bundle.username}@{bundle.machine} '
- f'"source remote-execution/bin/activate &&'
+ f'"source py39-venv/bin/activate &&'
f' /home/scott/lib/python_modules/remote_worker.py'
f' --code_file {bundle.code_file} --result_file {bundle.result_file}"')
p = cmd_in_background(cmd, silent=True)
bundle.pid = pid = p.pid
- logger.info(f"Running {cmd} in the background as process {pid}")
+ logger.info(f"{uuid}/{fname}: Start training on {worker} via {cmd} (background pid {pid})")
while True:
try:
- p.wait(timeout=0.5)
+ p.wait(timeout=0.25)
except subprocess.TimeoutExpired:
self.heartbeat()
break
else:
logger.debug(
- f"{pid}/{bundle.uuid} has finished its work normally."
+ f"{uuid}/{fname}: pid {pid} has finished its work normally."
)
break
return self.post_launch_work(bundle)
except Exception as e:
logger.exception(e)
- logger.info(f"Bundle {uuid} seems to have failed?!")
+ logger.info(f"{uuid}: Bundle seems to have failed?!")
if bundle.failure_count < config.config['executors_max_bundle_failures']:
return self.launch(bundle)
- logger.info(f"Bundle {uuid} is poison, giving up on it.")
+ logger.info(f"{uuid}: Bundle is poison, giving up on it.")
return None
def post_launch_work(self, bundle: BundleDetails) -> Any:
machine = bundle.machine
result_file = bundle.result_file
code_file = bundle.code_file
+ fname = bundle.fname
+ uuid = bundle.uuid
# Whether original or backup, if we finished first we must
# fetch the results if the computation happened on a
if bundle.hostname not in bundle.machine:
cmd = f'{RSYNC} {username}@{machine}:{result_file} {result_file} 2>/dev/null'
logger.info(
- f"Fetching results from {username}@{machine} via {cmd}"
+ f"{uuid}/{fname}: Fetching results from {username}@{machine} via {cmd}"
)
try:
run_silently(cmd)
# if one of the backups finished first; it still must read the
# result from disk.
if is_original:
- logger.debug(f"Unpickling {result_file}.")
+ logger.debug(f"{uuid}/{fname}: Unpickling {result_file}.")
try:
with open(f'{result_file}', 'rb') as rb:
serialized = rb.read()
if bundle.backup_bundles is not None:
for backup in bundle.backup_bundles:
logger.debug(
- f'Notifying backup {backup.uuid} that it is cancelled'
+ f'{uuid}/{fname}: Notifying backup {backup.uuid} that it\'s cancelled'
)
backup.is_cancelled.set()
# Tell the original to stop if we finished first.
if not was_cancelled:
logger.debug(
- f'Notifying original {bundle.src_bundle.uuid} that it is cancelled'
+ f'{uuid}/{fname}: Notifying original {bundle.src_bundle.uuid} that it\'s cancelled'
)
bundle.src_bundle.is_cancelled.set()
self.adjust_task_count(-1)
return result
- def create_original_bundle(self, pickle):
+ def create_original_bundle(self, pickle, fname: str):
from string_utils import generate_uuid
uuid = generate_uuid(as_hex=True)
code_file = f'/tmp/{uuid}.code.bin'
bundle = BundleDetails(
pickled_code = pickle,
uuid = uuid,
+ fname = fname,
worker = None,
username = None,
machine = None,
failure_count = 0,
)
self.status.record_bundle_details(bundle)
- logger.debug(f'Created original bundle {uuid}')
+ logger.debug(f'{uuid}/{fname}: Created original bundle')
return bundle
def create_backup_bundle(self, src_bundle: BundleDetails):
backup_bundle = BundleDetails(
pickled_code = src_bundle.pickled_code,
uuid = uuid,
+ fname = src_bundle.fname,
worker = None,
username = None,
machine = None,
)
src_bundle.backup_bundles.append(backup_bundle)
self.status.record_bundle_details_already_locked(backup_bundle)
- logger.debug(f'Created backup bundle {uuid}')
+ logger.debug(f'{uuid}/{src_bundle.fname}: Created backup bundle')
return backup_bundle
def schedule_backup_for_bundle(self,
assert self.status.lock.locked()
backup_bundle = self.create_backup_bundle(src_bundle)
logger.debug(
- f'Scheduling backup bundle {backup_bundle.uuid} for execution'
+ f'{backup_bundle.uuid}/{backup_bundle.fname}: Scheduling backup for execution...'
)
self._helper_executor.submit(self.launch, backup_bundle)
# they will move the result_file to this machine and let
# the original pick them up and unpickle them.
+ @overrides
def submit(self,
function: Callable,
*args,
**kwargs) -> fut.Future:
pickle = make_cloud_pickle(function, *args, **kwargs)
- bundle = self.create_original_bundle(pickle)
+ bundle = self.create_original_bundle(pickle, function.__name__)
self.total_bundles_submitted += 1
return self._helper_executor.submit(self.launch, bundle)
+ @overrides
def shutdown(self, wait=True) -> None:
self._helper_executor.shutdown(wait)
logging.debug(f'Shutting down RemoteExecutor {self.title}')
self.remote_executor: Optional[RemoteExecutor] = None
def ping(self, host) -> bool:
+ logger.debug(f'RUN> ping -c 1 {host}')
command = ['ping', '-c', '1', host]
return subprocess.call(
command,
return self.process_executor
def remote_pool(self) -> RemoteExecutor:
+ logger.info('Looking for some helper machines...')
if self.remote_executor is None:
pool: List[RemoteWorkerRecord] = []
if self.ping('cheetah.house'):
+ logger.info('Found cheetah.house')
pool.append(
RemoteWorkerRecord(
username = 'scott',
),
)
if self.ping('video.house'):
+ logger.info('Found video.house')
pool.append(
RemoteWorkerRecord(
username = 'scott',
),
)
if self.ping('wannabe.house'):
+ logger.info('Found wannabe.house')
pool.append(
RemoteWorkerRecord(
username = 'scott',
),
)
if self.ping('meerkat.cabin'):
+ logger.info('Found meerkat.cabin')
pool.append(
RemoteWorkerRecord(
username = 'scott',
machine = 'meerkat.cabin',
- weight = 7,
+ weight = 5,
count = 2,
),
)
if self.ping('backup.house'):
+ logger.info('Found backup.house')
pool.append(
RemoteWorkerRecord(
username = 'scott',
count = 4,
),
)
+ if self.ping('kiosk.house'):
+ logger.info('Found kiosk.house')
+ pool.append(
+ RemoteWorkerRecord(
+ username = 'pi',
+ machine = 'kiosk.house',
+ weight = 1,
+ count = 2,
+ ),
+ )
if self.ping('puma.cabin'):
+ logger.info('Found puma.cabin')
pool.append(
RemoteWorkerRecord(
username = 'scott',
count = 4,
),
)
+
+ # The controller machine has a lot to do; go easy on it.
+ for record in pool:
+ if record.machine == platform.node() and record.count > 1:
+ logger.info(f'Reducing workload for {record.machine}.')
+ record.count = 1
+
policy = WeightedRandomRemoteWorkerSelectionPolicy()
policy.register_worker_pool(pool)
self.remote_executor = RemoteExecutor(pool, policy)