INSTRUCTION stringlengths 1 8.43k | RESPONSE stringlengths 75 104k |
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Rest API to query the job info with the given job_id. | def query_job(request):
"""Rest API to query the job info, with the given job_id.
The url pattern should be like this:
curl http://<server>:<port>/query_job?job_id=<job_id>
The response may be:
{
"running_trials": 0,
"start_time": "2018-07-19 20:49:40",
"current_round": 1... |
Rest API to query the trial info with the given trial_id. | def query_trial(request):
"""Rest API to query the trial info, with the given trial_id.
The url pattern should be like this:
curl http://<server>:<port>/query_trial?trial_id=<trial_id>
The response may be:
{
"app_url": "None",
"trial_status": "TERMINATED",
"params": {'a':... |
Callback for early stopping. | def on_trial_result(self, trial_runner, trial, result):
"""Callback for early stopping.
This stopping rule stops a running trial if the trial's best objective
value by step `t` is strictly worse than the median of the running
averages of all completed trials' objectives reported up to s... |
Marks trial as completed if it is paused and has previously ran. | def on_trial_remove(self, trial_runner, trial):
"""Marks trial as completed if it is paused and has previously ran."""
if trial.status is Trial.PAUSED and trial in self._results:
self._completed_trials.add(trial) |
Build a Job instance from a json string. | def from_json(cls, json_info):
"""Build a Job instance from a json string."""
if json_info is None:
return None
return JobRecord(
job_id=json_info["job_id"],
name=json_info["job_name"],
user=json_info["user"],
type=json_info["type"],
... |
Build a Trial instance from a json string. | def from_json(cls, json_info):
"""Build a Trial instance from a json string."""
if json_info is None:
return None
return TrialRecord(
trial_id=json_info["trial_id"],
job_id=json_info["job_id"],
trial_status=json_info["status"],
start_ti... |
Build a Result instance from a json string. | def from_json(cls, json_info):
"""Build a Result instance from a json string."""
if json_info is None:
return None
return ResultRecord(
trial_id=json_info["trial_id"],
timesteps_total=json_info["timesteps_total"],
done=json_info.get("done", None),
... |
Given a rollout compute its value targets and the advantage. | def compute_advantages(rollout, last_r, gamma=0.9, lambda_=1.0, use_gae=True):
"""Given a rollout, compute its value targets and the advantage.
Args:
rollout (SampleBatch): SampleBatch of a single trajectory
last_r (float): Value estimation for last observation
gamma (float): Discount f... |
Handle an xray heartbeat batch message from Redis. | def xray_heartbeat_batch_handler(self, unused_channel, data):
"""Handle an xray heartbeat batch message from Redis."""
gcs_entries = ray.gcs_utils.GcsTableEntry.GetRootAsGcsTableEntry(
data, 0)
heartbeat_data = gcs_entries.Entries(0)
message = (ray.gcs_utils.HeartbeatBatchT... |
Remove this driver s object/ task entries from redis. | def _xray_clean_up_entries_for_driver(self, driver_id):
"""Remove this driver's object/task entries from redis.
Removes control-state entries of all tasks and task return
objects belonging to the driver.
Args:
driver_id: The driver id.
"""
xray_task_table_p... |
Handle a notification that a driver has been removed. | def xray_driver_removed_handler(self, unused_channel, data):
"""Handle a notification that a driver has been removed.
Args:
unused_channel: The message channel.
data: The message data.
"""
gcs_entries = ray.gcs_utils.GcsTableEntry.GetRootAsGcsTableEntry(
... |
Process all messages ready in the subscription channels. | def process_messages(self, max_messages=10000):
"""Process all messages ready in the subscription channels.
This reads messages from the subscription channels and calls the
appropriate handlers until there are no messages left.
Args:
max_messages: The maximum number of mess... |
Experimental: issue a flush request to the GCS. | def _maybe_flush_gcs(self):
"""Experimental: issue a flush request to the GCS.
The purpose of this feature is to control GCS memory usage.
To activate this feature, Ray must be compiled with the flag
RAY_USE_NEW_GCS set, and Ray must be started at run time with the flag
as well... |
Run the monitor. | def run(self):
"""Run the monitor.
This function loops forever, checking for messages about dead database
clients and cleaning up state accordingly.
"""
# Initialize the subscription channel.
self.subscribe(ray.gcs_utils.XRAY_HEARTBEAT_BATCH_CHANNEL)
self.subscri... |
View for the home page. | def index(request):
"""View for the home page."""
recent_jobs = JobRecord.objects.order_by("-start_time")[0:100]
recent_trials = TrialRecord.objects.order_by("-start_time")[0:500]
total_num = len(recent_trials)
running_num = sum(t.trial_status == Trial.RUNNING for t in recent_trials)
success_nu... |
View for a single job. | def job(request):
"""View for a single job."""
job_id = request.GET.get("job_id")
recent_jobs = JobRecord.objects.order_by("-start_time")[0:100]
recent_trials = TrialRecord.objects \
.filter(job_id=job_id) \
.order_by("-start_time")
trial_records = []
for recent_trial in recent_t... |
View for a single trial. | def trial(request):
"""View for a single trial."""
job_id = request.GET.get("job_id")
trial_id = request.GET.get("trial_id")
recent_trials = TrialRecord.objects \
.filter(job_id=job_id) \
.order_by("-start_time")
recent_results = ResultRecord.objects \
.filter(trial_id=trial_... |
Get job information for current job. | def get_job_info(current_job):
"""Get job information for current job."""
trials = TrialRecord.objects.filter(job_id=current_job.job_id)
total_num = len(trials)
running_num = sum(t.trial_status == Trial.RUNNING for t in trials)
success_num = sum(t.trial_status == Trial.TERMINATED for t in trials)
... |
Get job information for current trial. | def get_trial_info(current_trial):
"""Get job information for current trial."""
if current_trial.end_time and ("_" in current_trial.end_time):
# end time is parsed from result.json and the format
# is like: yyyy-mm-dd_hh-MM-ss, which will be converted
# to yyyy-mm-dd hh:MM:ss here
... |
Get winner trial of a job. | def get_winner(trials):
"""Get winner trial of a job."""
winner = {}
# TODO: sort_key should be customized here
sort_key = "accuracy"
if trials and len(trials) > 0:
first_metrics = get_trial_info(trials[0])["metrics"]
if first_metrics and not first_metrics.get("accuracy", None):
... |
Returns a base argument parser for the ray. tune tool. | def make_parser(parser_creator=None, **kwargs):
"""Returns a base argument parser for the ray.tune tool.
Args:
parser_creator: A constructor for the parser class.
kwargs: Non-positional args to be passed into the
parser class constructor.
"""
if parser_creator:
pars... |
Converts configuration to a command line argument format. | def to_argv(config):
"""Converts configuration to a command line argument format."""
argv = []
for k, v in config.items():
if "-" in k:
raise ValueError("Use '_' instead of '-' in `{}`".format(k))
if v is None:
continue
if not isinstance(v, bool) or v: # for ... |
Creates a Trial object from parsing the spec. | def create_trial_from_spec(spec, output_path, parser, **trial_kwargs):
"""Creates a Trial object from parsing the spec.
Arguments:
spec (dict): A resolved experiment specification. Arguments should
The args here should correspond to the command line flags
in ray.tune.config_pars... |
Poll for compute zone operation until finished. | def wait_for_compute_zone_operation(compute, project_name, operation, zone):
"""Poll for compute zone operation until finished."""
logger.info("wait_for_compute_zone_operation: "
"Waiting for operation {} to finish...".format(
operation["name"]))
for _ in range(MAX_POLLS... |
Return the task id associated to the generic source of the signal. | def _get_task_id(source):
"""Return the task id associated to the generic source of the signal.
Args:
source: source of the signal, it can be either an object id returned
by a task, a task id, or an actor handle.
Returns:
- If source is an object id, return id of task which cre... |
Send signal. | def send(signal):
"""Send signal.
The signal has a unique identifier that is computed from (1) the id
of the actor or task sending this signal (i.e., the actor or task calling
this function), and (2) an index that is incremented every time this
source sends a signal. This index starts from 1.
... |
Get all outstanding signals from sources. | def receive(sources, timeout=None):
"""Get all outstanding signals from sources.
A source can be either (1) an object ID returned by the task (we want
to receive signals from), or (2) an actor handle.
When invoked by the same entity E (where E can be an actor, task or
driver), for each source S in... |
Reset the worker state associated with any signals that this worker has received so far. | def reset():
"""
Reset the worker state associated with any signals that this worker
has received so far.
If the worker calls receive() on a source next, it will get all the
signals generated by that source starting with index = 1.
"""
if hasattr(ray.worker.global_worker, "signal_counters")... |
Returns True if this is the first call for a given key. | def log_once(key):
"""Returns True if this is the "first" call for a given key.
Various logging settings can adjust the definition of "first".
Example:
>>> if log_once("some_key"):
... logger.info("Some verbose logging statement")
"""
global _last_logged
if _disabled:
... |
Get a single or a collection of remote objects from the object store. | def get(object_ids):
"""Get a single or a collection of remote objects from the object store.
This method is identical to `ray.get` except it adds support for tuples,
ndarrays and dictionaries.
Args:
object_ids: Object ID of the object to get, a list, tuple, ndarray of
object IDs t... |
Return a list of IDs that are ready and a list of IDs that are not. | def wait(object_ids, num_returns=1, timeout=None):
"""Return a list of IDs that are ready and a list of IDs that are not.
This method is identical to `ray.wait` except it adds support for tuples
and ndarrays.
Args:
object_ids (List[ObjectID], Tuple(ObjectID), np.array(ObjectID)):
L... |
User notification for deprecated parameter. | def _raise_deprecation_note(deprecated, replacement, soft=False):
"""User notification for deprecated parameter.
Arguments:
deprecated (str): Deprecated parameter.
replacement (str): Replacement parameter to use instead.
soft (bool): Fatal if True.
"""
error_msg = ("`{deprecated... |
Produces a list of Experiment objects. | def convert_to_experiment_list(experiments):
"""Produces a list of Experiment objects.
Converts input from dict, single experiment, or list of
experiments to list of experiments. If input is None,
will return an empty list.
Arguments:
experiments (Experiment | list | dict): Experiments to ... |
Generates an Experiment object from JSON. | def from_json(cls, name, spec):
"""Generates an Experiment object from JSON.
Args:
name (str): Name of Experiment.
spec (dict): JSON configuration of experiment.
"""
if "run" not in spec:
raise TuneError("No trainable specified!")
# Special c... |
Registers Trainable or Function at runtime. | def _register_if_needed(cls, run_object):
"""Registers Trainable or Function at runtime.
Assumes already registered if run_object is a string. Does not
register lambdas because they could be part of variant generation.
Also, does not inspect interface of given run_object.
Argum... |
Perform a QR decomposition of a tall - skinny matrix. | def tsqr(a):
"""Perform a QR decomposition of a tall-skinny matrix.
Args:
a: A distributed matrix with shape MxN (suppose K = min(M, N)).
Returns:
A tuple of q (a DistArray) and r (a numpy array) satisfying the
following.
- If q_full = ray.get(DistArray, q).assemble... |
Perform a modified LU decomposition of a matrix. | def modified_lu(q):
"""Perform a modified LU decomposition of a matrix.
This takes a matrix q with orthonormal columns, returns l, u, s such that
q - s = l * u.
Args:
q: A two dimensional orthonormal matrix q.
Returns:
A tuple of a lower triangular matrix l, an upper triangular ma... |
Provides a natural representation for string for nice sorting. | def _naturalize(string):
"""Provides a natural representation for string for nice sorting."""
splits = re.split("([0-9]+)", string)
return [int(text) if text.isdigit() else text.lower() for text in splits] |
Returns path to most recently modified checkpoint. | def _find_newest_ckpt(ckpt_dir):
"""Returns path to most recently modified checkpoint."""
full_paths = [
os.path.join(ckpt_dir, fname) for fname in os.listdir(ckpt_dir)
if fname.startswith("experiment_state") and fname.endswith(".json")
]
return max(full_paths) |
Saves execution state to self. _metadata_checkpoint_dir. | def checkpoint(self):
"""Saves execution state to `self._metadata_checkpoint_dir`.
Overwrites the current session checkpoint, which starts when self
is instantiated.
"""
if not self._metadata_checkpoint_dir:
return
metadata_checkpoint_dir = self._metadata_che... |
Restores all checkpointed trials from previous run. | def restore(cls,
metadata_checkpoint_dir,
search_alg=None,
scheduler=None,
trial_executor=None):
"""Restores all checkpointed trials from previous run.
Requires user to manually re-register their objects. Also stops
all ongoing tri... |
Returns whether all trials have finished running. | def is_finished(self):
"""Returns whether all trials have finished running."""
if self._total_time > self._global_time_limit:
logger.warning("Exceeded global time limit {} / {}".format(
self._total_time, self._global_time_limit))
return True
trials_done ... |
Runs one step of the trial event loop. | def step(self):
"""Runs one step of the trial event loop.
Callers should typically run this method repeatedly in a loop. They
may inspect or modify the runner's state in between calls to step().
"""
if self.is_finished():
raise TuneError("Called step when all trials ... |
Adds a new trial to this TrialRunner. | def add_trial(self, trial):
"""Adds a new trial to this TrialRunner.
Trials may be added at any time.
Args:
trial (Trial): Trial to queue.
"""
trial.set_verbose(self._verbose)
self._trials.append(trial)
with warn_if_slow("scheduler.on_trial_add"):
... |
Returns a human readable message for printing to the console. | def debug_string(self, max_debug=MAX_DEBUG_TRIALS):
"""Returns a human readable message for printing to the console."""
messages = self._debug_messages()
states = collections.defaultdict(set)
limit_per_state = collections.Counter()
for t in self._trials:
states[t.stat... |
Replenishes queue. | def _get_next_trial(self):
"""Replenishes queue.
Blocks if all trials queued have finished, but search algorithm is
still not finished.
"""
trials_done = all(trial.is_finished() for trial in self._trials)
wait_for_trial = trials_done and not self._search_alg.is_finished(... |
Checkpoints trial based off trial. last_result. | def _checkpoint_trial_if_needed(self, trial):
"""Checkpoints trial based off trial.last_result."""
if trial.should_checkpoint():
# Save trial runtime if possible
if hasattr(trial, "runner") and trial.runner:
self.trial_executor.save(trial, storage=Checkpoint.DISK)... |
Tries to recover trial. | def _try_recover(self, trial, error_msg):
"""Tries to recover trial.
Notifies SearchAlgorithm and Scheduler if failure to recover.
Args:
trial (Trial): Trial to recover.
error_msg (str): Error message from prior to invoking this method.
"""
try:
... |
Notification to TrialScheduler and requeue trial. | def _requeue_trial(self, trial):
"""Notification to TrialScheduler and requeue trial.
This does not notify the SearchAlgorithm because the function
evaluation is still in progress.
"""
self._scheduler_alg.on_trial_error(self, trial)
self.trial_executor.set_status(trial, ... |
Adds next trials to queue if possible. | def _update_trial_queue(self, blocking=False, timeout=600):
"""Adds next trials to queue if possible.
Note that the timeout is currently unexposed to the user.
Args:
blocking (bool): Blocks until either a trial is available
or is_finished (timeout or search algorith... |
Stops trial. | def stop_trial(self, trial):
"""Stops trial.
Trials may be stopped at any time. If trial is in state PENDING
or PAUSED, calls `on_trial_remove` for scheduler and
`on_trial_complete(..., early_terminated=True) for search_alg.
Otherwise waits for result for the trial and calls
... |
Helper function for running examples | def run_func(func, *args, **kwargs):
"""Helper function for running examples"""
ray.init()
func = ray.remote(func)
# NOTE: kwargs not allowed for now
result = ray.get(func.remote(*args))
# Inspect the stack to get calling example
caller = inspect.stack()[1][3]
print("%s: %s" % (caller... |
Cython simple class | def example6():
"""Cython simple class"""
ray.init()
cls = ray.remote(cyth.simple_class)
a1 = cls.remote()
a2 = cls.remote()
result1 = ray.get(a1.increment.remote())
result2 = ray.get(a2.increment.remote())
print(result1, result2) |
Cython with blas. NOTE: requires scipy | def example8():
"""Cython with blas. NOTE: requires scipy"""
# See cython_blas.pyx for argument documentation
mat = np.array([[[2.0, 2.0], [2.0, 2.0]], [[2.0, 2.0], [2.0, 2.0]]],
dtype=np.float32)
result = np.zeros((2, 2), np.float32, order="C")
run_func(cyth.compute_kernel_matr... |
Rewrites the given trajectory fragments to encode n - step rewards. | def _adjust_nstep(n_step, gamma, obs, actions, rewards, new_obs, dones):
"""Rewrites the given trajectory fragments to encode n-step rewards.
reward[i] = (
reward[i] * gamma**0 +
reward[i+1] * gamma**1 +
... +
reward[i+n_step-1] * gamma**(n_step-1))
The ith new_obs is also ... |
Same as tf. reduce_mean () but ignores - inf values. | def _reduce_mean_ignore_inf(x, axis):
"""Same as tf.reduce_mean() but ignores -inf values."""
mask = tf.not_equal(x, tf.float32.min)
x_zeroed = tf.where(mask, x, tf.zeros_like(x))
return (tf.reduce_sum(x_zeroed, axis) / tf.reduce_sum(
tf.cast(mask, tf.float32), axis)) |
Reference: https:// en. wikipedia. org/ wiki/ Huber_loss | def _huber_loss(x, delta=1.0):
"""Reference: https://en.wikipedia.org/wiki/Huber_loss"""
return tf.where(
tf.abs(x) < delta,
tf.square(x) * 0.5, delta * (tf.abs(x) - 0.5 * delta)) |
Minimized objective using optimizer w. r. t. variables in var_list while ensure the norm of the gradients for each variable is clipped to clip_val | def _minimize_and_clip(optimizer, objective, var_list, clip_val=10):
"""Minimized `objective` using `optimizer` w.r.t. variables in
`var_list` while ensure the norm of the gradients for each
variable is clipped to `clip_val`
"""
gradients = optimizer.compute_gradients(objective, var_list=var_list)
... |
Get variables inside a scope The scope can be specified as a string | def _scope_vars(scope, trainable_only=False):
"""
Get variables inside a scope
The scope can be specified as a string
Parameters
----------
scope: str or VariableScope
scope in which the variables reside.
trainable_only: bool
whether or not to return only the variables that were... |
a common dense layer: y = w^ { T } x + b a noisy layer: y = ( w + \ epsilon_w * \ sigma_w ) ^ { T } x + ( b + \ epsilon_b * \ sigma_b ) where \ epsilon are random variables sampled from factorized normal distributions and \ sigma are trainable variables which are expected to vanish along the training procedure | def noisy_layer(self, prefix, action_in, out_size, sigma0,
non_linear=True):
"""
a common dense layer: y = w^{T}x + b
a noisy layer: y = (w + \epsilon_w*\sigma_w)^{T}x +
(b+\epsilon_b*\sigma_b)
where \epsilon are random variables sampled from factorized no... |
Returns a custom getter that this class s methods must be called | def get_custom_getter(self):
"""Returns a custom getter that this class's methods must be called
All methods of this class must be called under a variable scope that was
passed this custom getter. Example:
```python
network = ConvNetBuilder(...)
with tf.variable_scope("cg", custom_getter=n... |
Context that construct cnn in the auxiliary arm. | def switch_to_aux_top_layer(self):
"""Context that construct cnn in the auxiliary arm."""
if self.aux_top_layer is None:
raise RuntimeError("Empty auxiliary top layer in the network.")
saved_top_layer = self.top_layer
saved_top_size = self.top_size
self.top_layer = se... |
Construct a conv2d layer on top of cnn. | def conv(self,
num_out_channels,
k_height,
k_width,
d_height=1,
d_width=1,
mode="SAME",
input_layer=None,
num_channels_in=None,
use_batch_norm=None,
stddev=None,
activation="rel... |
Construct a pooling layer. | def _pool(self, pool_name, pool_function, k_height, k_width, d_height,
d_width, mode, input_layer, num_channels_in):
"""Construct a pooling layer."""
if input_layer is None:
input_layer = self.top_layer
else:
self.top_size = num_channels_in
name = po... |
Construct a max pooling layer. | def mpool(self,
k_height,
k_width,
d_height=2,
d_width=2,
mode="VALID",
input_layer=None,
num_channels_in=None):
"""Construct a max pooling layer."""
return self._pool("mpool", pooling_layers.max_pooling2d,... |
Construct an average pooling layer. | def apool(self,
k_height,
k_width,
d_height=2,
d_width=2,
mode="VALID",
input_layer=None,
num_channels_in=None):
"""Construct an average pooling layer."""
return self._pool("apool", pooling_layers.average_p... |
Batch normalization on input_layer without tf. layers. | def _batch_norm_without_layers(self, input_layer, decay, use_scale,
epsilon):
"""Batch normalization on `input_layer` without tf.layers."""
shape = input_layer.shape
num_channels = shape[3] if self.data_format == "NHWC" else shape[1]
beta = self.get_var... |
Adds a Batch Normalization layer. | def batch_norm(self,
input_layer=None,
decay=0.999,
scale=False,
epsilon=0.001):
"""Adds a Batch Normalization layer."""
if input_layer is None:
input_layer = self.top_layer
else:
self.top_size = ... |
Adds a local response normalization layer. | def lrn(self, depth_radius, bias, alpha, beta):
"""Adds a local response normalization layer."""
name = "lrn" + str(self.counts["lrn"])
self.counts["lrn"] += 1
self.top_layer = tf.nn.lrn(
self.top_layer, depth_radius, bias, alpha, beta, name=name)
return self.top_laye... |
Fetch the value of a binary key. | def _internal_kv_get(key):
"""Fetch the value of a binary key."""
worker = ray.worker.get_global_worker()
if worker.mode == ray.worker.LOCAL_MODE:
return _local.get(key)
return worker.redis_client.hget(key, "value") |
Globally associates a value with a given binary key. | def _internal_kv_put(key, value, overwrite=False):
"""Globally associates a value with a given binary key.
This only has an effect if the key does not already have a value.
Returns:
already_exists (bool): whether the value already exists.
"""
worker = ray.worker.get_global_worker()
if... |
Deferred init so that we can pass in previously created workers. | def init(self, aggregators):
"""Deferred init so that we can pass in previously created workers."""
assert len(aggregators) == self.num_aggregation_workers, aggregators
if len(self.remote_evaluators) < self.num_aggregation_workers:
raise ValueError(
"The number of ag... |
Free a list of IDs from object stores. | def free(object_ids, local_only=False, delete_creating_tasks=False):
"""Free a list of IDs from object stores.
This function is a low-level API which should be used in restricted
scenarios.
If local_only is false, the request will be send to all object stores.
This method will not return any valu... |
Start the collector worker thread. | def run(self):
"""Start the collector worker thread.
If running in standalone mode, the current thread will wait
until the collector thread ends.
"""
self.collector.start()
if self.standalone:
self.collector.join() |
Initialize logger settings. | def init_logger(cls, log_level):
"""Initialize logger settings."""
logger = logging.getLogger("AutoMLBoard")
handler = logging.StreamHandler()
formatter = logging.Formatter("[%(levelname)s %(asctime)s] "
"%(filename)s: %(lineno)d "
... |
Run the main event loop for collector thread. | def run(self):
"""Run the main event loop for collector thread.
In each round the collector traverse the results log directory
and reload trial information from the status files.
"""
self._initialize()
self._do_collect()
while not self._is_finished:
... |
Initialize collector worker thread Log path will be checked first. | def _initialize(self):
"""Initialize collector worker thread, Log path will be checked first.
Records in DB backend will be cleared.
"""
if not os.path.exists(self._logdir):
raise CollectorError("Log directory %s not exists" % self._logdir)
self.logger.info("Collect... |
Load information of the job with the given job name. | def sync_job_info(self, job_name):
"""Load information of the job with the given job name.
1. Traverse each experiment sub-directory and sync information
for each trial.
2. Create or update the job information, together with the job
meta file.
Args:
jo... |
Load information of the trial from the given experiment directory. | def sync_trial_info(self, job_path, expr_dir_name):
"""Load information of the trial from the given experiment directory.
Create or update the trial information, together with the trial
meta file.
Args:
job_path(str)
expr_dir_name(str)
"""
expr_... |
Create information for given job. | def _create_job_info(self, job_dir):
"""Create information for given job.
Meta file will be loaded if exists, and the job information will
be saved in db backend.
Args:
job_dir (str): Directory path of the job.
"""
meta = self._build_job_meta(job_dir)
... |
Update information for given job. | def _update_job_info(cls, job_dir):
"""Update information for given job.
Meta file will be loaded if exists, and the job information in
in db backend will be updated.
Args:
job_dir (str): Directory path of the job.
Return:
Updated dict of job meta info
... |
Create information for given trial. | def _create_trial_info(self, expr_dir):
"""Create information for given trial.
Meta file will be loaded if exists, and the trial information
will be saved in db backend.
Args:
expr_dir (str): Directory path of the experiment.
"""
meta = self._build_trial_met... |
Update information for given trial. | def _update_trial_info(self, expr_dir):
"""Update information for given trial.
Meta file will be loaded if exists, and the trial information
in db backend will be updated.
Args:
expr_dir(str)
"""
trial_id = expr_dir[-8:]
meta_file = os.path.join(exp... |
Build meta file for job. | def _build_job_meta(cls, job_dir):
"""Build meta file for job.
Args:
job_dir (str): Directory path of the job.
Return:
A dict of job meta info.
"""
meta_file = os.path.join(job_dir, JOB_META_FILE)
meta = parse_json(meta_file)
if not meta... |
Build meta file for trial. | def _build_trial_meta(cls, expr_dir):
"""Build meta file for trial.
Args:
expr_dir (str): Directory path of the experiment.
Return:
A dict of trial meta info.
"""
meta_file = os.path.join(expr_dir, EXPR_META_FILE)
meta = parse_json(meta_file)
... |
Add a list of results into db. | def _add_results(self, results, trial_id):
"""Add a list of results into db.
Args:
results (list): A list of json results.
trial_id (str): Id of the trial.
"""
for result in results:
self.logger.debug("Appending result: %s" % result)
resul... |
Adds a time dimension to padded inputs. | def add_time_dimension(padded_inputs, seq_lens):
"""Adds a time dimension to padded inputs.
Arguments:
padded_inputs (Tensor): a padded batch of sequences. That is,
for seq_lens=[1, 2, 2], then inputs=[A, *, B, B, C, C], where
A, B, C are sequence elements and * denotes padding.... |
Truncate and pad experiences into fixed - length sequences. | def chop_into_sequences(episode_ids,
unroll_ids,
agent_indices,
feature_columns,
state_columns,
max_seq_len,
dynamic_max=True,
_extra_padding=0):
""... |
Return a config perturbed as specified. | def explore(config, mutations, resample_probability, custom_explore_fn):
"""Return a config perturbed as specified.
Args:
config (dict): Original hyperparameter configuration.
mutations (dict): Specification of mutations to perform as documented
in the PopulationBasedTraining schedu... |
Appends perturbed params to the trial name to show in the console. | def make_experiment_tag(orig_tag, config, mutations):
"""Appends perturbed params to the trial name to show in the console."""
resolved_vars = {}
for k in mutations.keys():
resolved_vars[("config", k)] = config[k]
return "{}@perturbed[{}]".format(orig_tag, format_vars(resolved_vars)) |
Logs transition during exploit/ exploit step. | def _log_config_on_step(self, trial_state, new_state, trial,
trial_to_clone, new_config):
"""Logs transition during exploit/exploit step.
For each step, logs: [target trial tag, clone trial tag, target trial
iteration, clone trial iteration, old config, new config].
... |
Transfers perturbed state from trial_to_clone - > trial. | def _exploit(self, trial_executor, trial, trial_to_clone):
"""Transfers perturbed state from trial_to_clone -> trial.
If specified, also logs the updated hyperparam state."""
trial_state = self._trial_state[trial]
new_state = self._trial_state[trial_to_clone]
if not new_state.l... |
Returns trials in the lower and upper quantile of the population. | def _quantiles(self):
"""Returns trials in the lower and upper `quantile` of the population.
If there is not enough data to compute this, returns empty lists."""
trials = []
for trial, state in self._trial_state.items():
if state.last_score is not None and not trial.is_fini... |
Ensures all trials get fair share of time ( as defined by time_attr ). | def choose_trial_to_run(self, trial_runner):
"""Ensures all trials get fair share of time (as defined by time_attr).
This enables the PBT scheduler to support a greater number of
concurrent trials than can fit in the cluster at any given time.
"""
candidates = []
for tr... |
Returns the ith default ( aws_key_pair_name key_pair_path ). | def key_pair(i, region):
"""Returns the ith default (aws_key_pair_name, key_pair_path)."""
if i == 0:
return ("{}_{}".format(RAY, region),
os.path.expanduser("~/.ssh/{}_{}.pem".format(RAY, region)))
return ("{}_{}_{}".format(RAY, i, region),
os.path.expanduser("~/.ssh/{}_... |
Process the flattened inputs. | def _build_layers(self, inputs, num_outputs, options):
"""Process the flattened inputs.
Note that dict inputs will be flattened into a vector. To define a
model that processes the components separately, use _build_layers_v2().
"""
hiddens = options.get("fcnet_hiddens")
... |
Returns the given config dict merged with a base agent conf. | def with_base_config(base_config, extra_config):
"""Returns the given config dict merged with a base agent conf."""
config = copy.deepcopy(base_config)
config.update(extra_config)
return config |
Returns the class of a known agent given its name. | def get_agent_class(alg):
"""Returns the class of a known agent given its name."""
try:
return _get_agent_class(alg)
except ImportError:
from ray.rllib.agents.mock import _agent_import_failed
return _agent_import_failed(traceback.format_exc()) |
Return the first IP address for an ethernet interface on the system. | def determine_ip_address():
"""Return the first IP address for an ethernet interface on the system."""
addrs = [
x.address for k, v in psutil.net_if_addrs().items() if k[0] == "e"
for x in v if x.family == AddressFamily.AF_INET
]
return addrs[0] |
Get any changes to the log files and push updates to Redis. | def perform_iteration(self):
"""Get any changes to the log files and push updates to Redis."""
stats = self.get_all_stats()
self.redis_client.publish(
self.redis_key,
jsonify_asdict(stats),
) |
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