opt_einsum.paths.PathOptimizer¶
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class
opt_einsum.paths.
PathOptimizer
[source]¶ Base class for different path optimizers to inherit from.
Subclassed optimizers should define a call method with signature:
def __call__(self, inputs, output, size_dict, memory_limit=None): """ Parameters ---------- inputs : list[set[str]] The indices of each input array. outputs : set[str] The output indices size_dict : dict[str, int] The size of each index memory_limit : int, optional If given, the maximum allowed memory. """ # ... compute path here ... return path
where
path
is a list of int-tuples specifiying a contraction order.-
__init__
()¶ Initialize self. See help(type(self)) for accurate signature.
Methods
__call__
(inputs, output, size_dict[, …])Call self as a function.
__delattr__
(name, /)Implement delattr(self, name).
__dir__
()Default dir() implementation.
__eq__
(value, /)Return self==value.
__format__
(format_spec, /)Default object formatter.
__ge__
(value, /)Return self>=value.
__getattribute__
(name, /)Return getattr(self, name).
__gt__
(value, /)Return self>value.
__hash__
()Return hash(self).
__init__
()Initialize self.
__init_subclass__
This method is called when a class is subclassed.
__le__
(value, /)Return self<=value.
__lt__
(value, /)Return self<value.
__ne__
(value, /)Return self!=value.
__new__
(**kwargs)Create and return a new object.
__reduce__
()Helper for pickle.
__reduce_ex__
(protocol, /)Helper for pickle.
__repr__
()Return repr(self).
__setattr__
(name, value, /)Implement setattr(self, name, value).
__sizeof__
()Size of object in memory, in bytes.
__str__
()Return str(self).
__subclasshook__
Abstract classes can override this to customize issubclass().
_check_args_against_first_call
(inputs, …)Utility that stateful optimizers can use to ensure they are not called with different contractions across separate runs.
Attributes
__dict__
__doc__
__module__
__weakref__
list of weak references to the object (if defined)
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