opt_einsum.contract.PathInfo

class opt_einsum.contract.PathInfo(contraction_list, input_subscripts, output_subscript, indices, path, scale_list, naive_cost, opt_cost, size_list, size_dict)

A printable object to contain information about a contraction path.

Variables:

• naive_cost (int) – The estimate FLOP cost of a naive einsum contraction.

• opt_cost (int) – The estimate FLOP cost of this optimized contraction path.

• largest_intermediate (int) – The number of elements in the largest intermediate array that will be produced during the contraction.

__init__(contraction_list, input_subscripts, output_subscript, indices, path, scale_list, naive_cost, opt_cost, size_list, size_dict)

Methods

__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).
__getstate__()	Helper for pickle.
__gt__(value, /)	Return self>value.
__hash__()	Return hash(self).
__init__(contraction_list, input_subscripts, ...)
__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)
__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().

Attributes

__annotations__
__dict__
__doc__
__module__
__weakref__	list of weak references to the object