smttask.task_types.MemoizedTask

class smttask.task_types.MemoizedTask(arg0=None, *, reason=None, **taskinputs)

Behaves like a Task, in particular with regards to computing descriptions and digests of composited tasks. However the output is not saved to disk and a sumatra record is not created. The intention is for tasks which are cheap to compute, and thus for which it does not make sense to store the output. A prime example would be the output of a random number generator, for which it is much more efficient to store a function, a random seed and some parameters.

__init__(arg0=None, *, reason=None, **taskinputs)

Parameters:

• arg0 (ParameterSet-like) – ParameterSet, or something which can be cast to a ParameterSet (like a dict or filename). The result will be parsed for task arguments defined in self.inputs.

• **taskinputs – Task parameters can also be specified as keyword arguments, and will override those in :param:arg0.

• reason (None | str) – Ignored because we aren’t recording into a Sumatra db. Included for compability with Task.

Methods

__init__([arg0, reason])
bind(**kwargs)	Bind task parameters to given values.
clear()	If the result of a previous run was cached, deallocate it.
describe([indent, type_join_str, ...])	A more human-friendly representation of the Task parameters.
draw(*args, **kwargs)	Draw the dependency graph.
from_desc(desc[, on_fail])	Instantiate a class from the description returned by 'desc'.
get_desc(taskinputs[, reason])
get_output([name])	Return the value of the output associated with name name; if the Task has only one unnamed output, specifying the name is not necessary.
load_inputs()	Return a copy of self.taskinputs, with all lazy inputs resolved:
parse_result(result)	Parse the task result as an object of type cls.Outputs.
partial(**kwargs)	Bind task parameters to given values.
run([cache, recompute, record, reason, ...])
save(path[, allow_overwrite])	Save a task description.
schematic()	Display an ascii-art schematic of the task inputs and outputs.
taskname()
validate(value)

Attributes

cache
desc
digest
graph	Return a dependency graph.
has_run	Returns True if a cached result (either in memory or on disk) exists and would be used on a call to run().
hashed_digest
input_files
inroot	Root of the input datastore.
logger
name
orig_taskinputs
outputpaths	Permanent paths to which task results are saved.
outroot	Root of the output datastore.
relative_outputpaths
resultpaths	Paths from which task results are retrieved.
saved_to_datastore	Return True if the outputs are saved to the _output_ data store.
saved_to_input_datastore	Return True if links matching the outputs exist the _input_ data store.
taskinputs
unhashed_digests