hpcflow.sdk.core.task.Task#

class hpcflow.sdk.core.task.Task(schema, repeats=None, groups=None, resources=None, inputs=None, input_files=None, sequences=None, input_sources=None, nesting_order=None, env_preset=None, environments=None, allow_non_coincident_task_sources=False, element_sets=None, output_labels=None, sourceable_elem_iters=None, merge_envs=True)#

Bases: JSONLike

Parametrisation of an isolated task for which a subset of input values are given “locally”. The remaining input values are expected to be satisfied by other tasks/imports in the workflow.

Parameters:

schema (TaskSchema | list[TaskSchema]) – A (list of) TaskSchema object(s) and/or a (list of) strings that are task schema names that uniquely identify a task schema. If strings are provided, the TaskSchema object will be fetched from the known task schemas loaded by the app configuration.
repeats (list[dict]) –
groups (list[ElementGroup]) –
resources (dict) –
inputs (list[InputValue]) – A list of InputValue objects.
input_files (list[InputFile]) –
sequences (list[ValueSequence]) –
input_sources (dict[str, InputSource]) –
nesting_order (list) –
env_preset (str) –
environments (dict[str, dict]) –
allow_non_coincident_task_sources (bool) – If True, if more than one parameter is sourced from the same task, then allow these sources to come from distinct element sub-sets. If False (default), only the intersection of element sub-sets for all parameters are included.
element_sets (list[ElementSet]) –
output_labels (list[OutputLabel]) –
sourceable_elem_iters (list[int]) –
merge_envs (bool) – If True, merge environment presets (set via the element set env_preset key) into resources using the “any” scope. If False, these presets are ignored. This is required on first initialisation, but not on subsequent re-initialisation from a persistent workflow.

Methods

`add_group`	Add an element group to this task.
`all_schema_actions`	Get all the schema actions and their indices.
`from_json_like`	Make an instance of this class from JSON (or YAML) data.
`get_available_task_input_sources`	For each input parameter of this task, generate a list of possible input sources that derive from inputs or outputs of this and other provided tasks.
`get_input_statuses`	Get a dict whose keys are normalised input paths (without the "inputs" prefix), and whose values are InputStatus objects.
`get_param_provided_element_sets`	Get the element set indices of this task for which a specified parameter type is locally provided.
`get_schema_action`	Get the schema action at the given index.
`get_task_unique_names`	Get the unique name of each in a list of tasks.
`is_input_type_required`	Check if an given input type must be specified in the parametrisation of this element set.
`prepare_element_resolution`	Set up the resolution of details of elements (especially multiplicities and how iterations are nested) within an element set.
`provides_parameters`	Get all provided parameter labelled types and whether they are inputs and outputs, considering all element sets.
`set_sequence_parameters`	Set up parameters parsed by value sequences.
`to_dict`	Serialize this object as a dictionary.
`to_json_like`	Serialize this object as an object structure that can be trivially converted to JSON.
`to_persistent`	Return a copy where any schema input defaults are saved to a persistent workflow.

Attributes

`all_schema_input_normalised_paths`	Normalised paths for all schema input types.
`all_schema_input_types`	The set of all schema input types (over all specified schemas).
`all_schema_inputs`	The inputs to this task's schemas.
`all_schema_output_types`	The set of all schema output types (over all specified schemas).
`all_schema_outputs`	The outputs from this task's schemas.
`all_sourced_normalised_paths`	All the sourced normalised paths, including of sub-values.
`defined_input_types`	The input types defined by this task.
`dir_name`	Artefact directory name.
`element_sets`	The element sets.
`index`	The index of this task within the workflow's tasks.
`insert_ID`	Insertion ID.
`name`	Task name.
`non_universal_input_types`	Get input types for each schema that are non-universal.
`num_all_schema_actions`	The total number of schema actions.
`num_element_sets`	The number of element sets.
`objective`	The goal of this task.
`output_labels`	The labels on the outputs of the task.
`schema`	The single task schema, if only one, else raises.
`schemas`	All the task schemas.
`undefined_input_types`	The schema's input types that this task doesn't define.
`undefined_inputs`	The task's inputs that are undefined.
`universal_input_types`	Get input types that are associated with all schemas
`merge_envs`	Whether to merge `environments` into `resources` using the "any" scope on first initialisation.
`workflow_template`	The template workflow that this task is within.

add_group(name, where, group_by_distinct)#

Add an element group to this task.

Parameters:

name (str) –
where (ElementFilter) –
group_by_distinct (ParameterPath) –

all_schema_actions()#

Get all the schema actions and their indices.

Return type:: Iterator[Tuple[int, Action]]

property all_schema_input_normalised_paths#: Normalised paths for all schema input types.

property all_schema_input_types#: The set of all schema input types (over all specified schemas).

property all_schema_inputs: Tuple[SchemaInput]#: The inputs to this task’s schemas.

property all_schema_output_types#: The set of all schema output types (over all specified schemas).

property all_schema_outputs: Tuple[SchemaOutput]#: The outputs from this task’s schemas.

property all_sourced_normalised_paths#: All the sourced normalised paths, including of sub-values.

property defined_input_types#: The input types defined by this task.

property dir_name#: Artefact directory name.

property element_sets#: The element sets.

classmethod from_json_like(json_like, shared_data=None)#

Make an instance of this class from JSON (or YAML) data.

Parameters:

json_like (Union[Dict, List]) – The data to deserialise.
shared_data (Optional[Dict[str, ObjectList]]) – Shared context data.

Return type:

The deserialised object.

get_available_task_input_sources(element_set, source_tasks=None)#

For each input parameter of this task, generate a list of possible input sources that derive from inputs or outputs of this and other provided tasks.

Note this only produces a subset of available input sources for each input parameter; other available input sources may exist from workflow imports.

Parameters:

element_set (ElementSet) –
source_tasks (List[WorkflowTask] | None) –

Return type:

List[InputSource]

get_input_statuses(elem_set)#

Get a dict whose keys are normalised input paths (without the “inputs” prefix), and whose values are InputStatus objects.

Parameters:: elem_set (ElementSet) – The element set for which input statuses should be returned.
Return type:: Dict[str, InputStatus]

get_param_provided_element_sets(labelled_path)#

Get the element set indices of this task for which a specified parameter type is locally provided.

Parameters:: labelled_path (str) –
Return type:: List[int]

get_schema_action(idx)#: Get the schema action at the given index.

static get_task_unique_names(tasks)#

Get the unique name of each in a list of tasks.

Return type:: list of str
Parameters:: tasks (List[Task]) –

property index#: The index of this task within the workflow’s tasks.

property insert_ID#: Insertion ID.

is_input_type_required(typ, element_set)#

Check if an given input type must be specified in the parametrisation of this element set.

A schema input need not be specified if it is only required to generate an input file, and that input file is passed directly.

Parameters:

typ (str) –
element_set (ElementSet) –

Return type:

bool

merge_envs#: Whether to merge environments into resources using the “any” scope on first initialisation.

property name#: Task name.

property non_universal_input_types#: Get input types for each schema that are non-universal.

property num_all_schema_actions: int#: The total number of schema actions.

property num_element_sets#: The number of element sets.

property objective#: The goal of this task.

property output_labels#: The labels on the outputs of the task.

prepare_element_resolution(element_set, input_data_indices)#: Set up the resolution of details of elements (especially multiplicities and how iterations are nested) within an element set.

provides_parameters()#

Get all provided parameter labelled types and whether they are inputs and outputs, considering all element sets.

Return type:: Tuple[Tuple[str, str]]

property schema: TaskSchema#: The single task schema, if only one, else raises.

property schemas: List[TaskSchema]#: All the task schemas.

set_sequence_parameters(element_set)#: Set up parameters parsed by value sequences.

to_dict()#: Serialize this object as a dictionary.

to_json_like(dct=None, shared_data=None, exclude=None, path=None)#: Serialize this object as an object structure that can be trivially converted to JSON. Note that YAML can also be produced from the result of this method; it just requires a different final serialization step.

to_persistent(workflow, insert_ID)#: Return a copy where any schema input defaults are saved to a persistent workflow. Element set data is not made persistent.

property undefined_input_types#: The schema’s input types that this task doesn’t define.

property undefined_inputs#: The task’s inputs that are undefined.

property universal_input_types#: Get input types that are associated with all schemas

workflow_template#: The template workflow that this task is within.