Tensor

class libadcc.Tensor

Bases: pybind11_builtins.pybind11_object

Class representing the Tensor objects used for computations in adcc

Attributes Summary

T

flags

mutable

ndim

needs_evaluation

Does the tensor need evaluation or is it fully evaluated and resilient in memory.

shape

size

space

subspaces

Methods Summary

antisymmetrise(*args, **kwargs)

Overloaded function.

copy(self)

Returns a deep copy of the tensor.

describe_expression(*args, **kwargs)

Overloaded function.

describe_symmetry(self)

Return a string providing a hopefully descriptive representation of the symmetry information stored inside the tensor.

diagonal(self, *args)

dot(*args, **kwargs)

Overloaded function.

empty_like(self)

evaluate(self)

Ensure the tensor to be fully evaluated and resilient in memory.

is_allowed(self, arg0)

Is a particular index allowed by symmetry

nosym_like(self)

ones_like(self)

select_n_absmax(self, arg0)

Select the n absolute maximal elements.

select_n_absmin(self, arg0)

Select the n absolute minimal elements.

select_n_max(self, arg0)

Select the n maximal elements.

select_n_min(self, arg0)

Select the n minimal elements.

set_from_ndarray(*args, **kwargs)

Overloaded function.

set_immutable(self)

Set the tensor as immutable, allowing some optimisations to be performed.

set_mask(self, arg0, arg1)

Set all elements corresponding to an index mask, which is given by a string eg.

set_random(self)

Set all tensor elements to random data, adhering to the internal symmetry.

symmetrise(*args, **kwargs)

Overloaded function.

to_ndarray(self)

Export the tensor data to a standard np::ndarray by making a copy.

transpose(*args, **kwargs)

Overloaded function.

zeros_like(self)

Attributes Documentation

T
flags
mutable
ndim
needs_evaluation

Does the tensor need evaluation or is it fully evaluated and resilient in memory.

shape
size
space
subspaces

Methods Documentation

antisymmetrise(*args, **kwargs)

Overloaded function.

  1. antisymmetrise(self: libadcc.Tensor, arg0: list) -> libadcc.Tensor

  2. antisymmetrise(self: libadcc.Tensor, *args) -> libadcc.Tensor

copy(self: libadcc.Tensor)libadcc.Tensor

Returns a deep copy of the tensor.

describe_expression(*args, **kwargs)

Overloaded function.

  1. describe_expression(self: libadcc.Tensor, arg0: str) -> str

Return a string providing a hopefully descriptive representation of the tensor expression stored inside the object.

  1. describe_expression(self: libadcc.Tensor) -> str

describe_symmetry(self: libadcc.Tensor) → str

Return a string providing a hopefully descriptive representation of the symmetry information stored inside the tensor.

diagonal(self: libadcc.Tensor, *args)libadcc.Tensor
dot(*args, **kwargs)

Overloaded function.

  1. dot(self: libadcc.Tensor, arg0: libadcc.Tensor) -> float

  2. dot(self: libadcc.Tensor, arg0: list) -> numpy.ndarray[numpy.float64]

empty_like(self: libadcc.Tensor)libadcc.Tensor
evaluate(self: libadcc.Tensor)libadcc.Tensor

Ensure the tensor to be fully evaluated and resilient in memory. Usually happens automatically when needed. Might be useful for fine-tuning, however.

is_allowed(self: libadcc.Tensor, arg0: tuple) → bool

Is a particular index allowed by symmetry

nosym_like(self: libadcc.Tensor)libadcc.Tensor
ones_like(self: libadcc.Tensor)libadcc.Tensor
select_n_absmax(self: libadcc.Tensor, arg0: int) → list

Select the n absolute maximal elements.

select_n_absmin(self: libadcc.Tensor, arg0: int) → list

Select the n absolute minimal elements.

select_n_max(self: libadcc.Tensor, arg0: int) → list

Select the n maximal elements.

select_n_min(self: libadcc.Tensor, arg0: int) → list

Select the n minimal elements.

set_from_ndarray(*args, **kwargs)

Overloaded function.

  1. set_from_ndarray(self: libadcc.Tensor, arg0: numpy.ndarray) -> libadcc.Tensor

Set all tensor elements from a standard np::ndarray by making a copy. Provide an optional tolerance argument to increase the tolerance for the check for symmetry consistency.

  1. set_from_ndarray(self: libadcc.Tensor, arg0: numpy.ndarray[numpy.float64], arg1: float) -> libadcc.Tensor

Set all tensor elements from a standard np::ndarray by making a copy. Provide an optional tolerance argument to increase the tolerance for the check for symmetry consistency.

set_immutable(self: libadcc.Tensor) → None

Set the tensor as immutable, allowing some optimisations to be performed.

set_mask(self: libadcc.Tensor, arg0: str, arg1: float) → None

Set all elements corresponding to an index mask, which is given by a string eg. ‘iijkli’ sets elements T_{iijkli}

set_random(self: libadcc.Tensor)libadcc.Tensor

Set all tensor elements to random data, adhering to the internal symmetry.

symmetrise(*args, **kwargs)

Overloaded function.

  1. symmetrise(self: libadcc.Tensor, arg0: list) -> libadcc.Tensor

  2. symmetrise(self: libadcc.Tensor, *args) -> libadcc.Tensor

to_ndarray(self: libadcc.Tensor) → numpy.ndarray[numpy.float64]

Export the tensor data to a standard np::ndarray by making a copy.

transpose(*args, **kwargs)

Overloaded function.

  1. transpose(self: libadcc.Tensor) -> libadcc.Tensor

  2. transpose(self: libadcc.Tensor, arg0: tuple) -> libadcc.Tensor

zeros_like(self: libadcc.Tensor)libadcc.Tensor