Experiment Node¶
orion.core.evc.experiment
– Experiment node for EVC¶
The experiments are connected to one another through the experiment nodes. The former can be created standalone without an EVC tree. When connected to an ExperimentNode, the experiments gain access to trials of other experiments by using method ExperimentNode.fetch_trials.
Helper functions are provided to fetch trials keeping the tree structure. Those can be helpful when analyzing an EVC tree.
-
class
orion.core.evc.experiment.
ExperimentNode
(name, version, experiment=None, parent=None, children=())[source]¶ Experiment node to connect experiments to EVC tree.
The node carries an experiment in attribute
item
. The node can be instantiated only using the name of the experiment. The experiment will be created lazily on access to node.item.Attributes: - name: str
Name of the experiment
- item: None or :class:`orion.core.worker.experiment.Experiment`
None if the experiment is not initialized yet. When initializing lazily, it creates an ExperimentView.
- .. seealso::
TreeNode
for tree-specific attributes and methods.
Methods
add_children
(*nodes)Add children to the current node drop_children
(*nodes)Drop the children of the node, do nothing if no parent drop_parent
()Drop the parent of the node, do nothing if no parent fetch_lost_trials
()See orion.core.evc.experiment:Experiment._fetch_trials()
fetch_noncompleted_trials
()See orion.core.evc.experiment:Experiment._fetch_trials()
fetch_pending_trials
()See orion.core.evc.experiment:Experiment._fetch_trials()
fetch_trials
()See orion.core.evc.experiment:Experiment._fetch_trials()
fetch_trials_by_status
(status)See orion.core.evc.experiment:Experiment._fetch_trials()
map
(function, node)Apply a function recursively on the tree set_parent
(node)Set the parent of the node -
adapter
¶ Get the adapter of the experiment with respect to its parent
-
children
¶ Get children of the experiment, empty list if no children
Note
The instantiation of an EVC tree is lazy, which means accessing the children of a node may trigger a call to database to build those children live.
-
item
¶ Get the experiment associated to the node
Note that accessing
item
may trigger the lazy initialization of the experiment if it was not done already.
-
parent
¶ Get parent of the experiment, None if no parent
Note
The instantiation of an EVC tree is lazy, which means accessing the parent of a node may trigger a call to database to build this parent live.
-
tree_name
¶ Return a formatted name of the Node for a tree pretty-print.