NEML2 1.4.0
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SWR4 Class Reference

The (logical) symmetric fourth order tensor, with symmetry in the first two dimensionss and skew-symmetry in the second two. More...

Detailed Description

The (logical) symmetric fourth order tensor, with symmetry in the first two dimensionss and skew-symmetry in the second two.

Mandel notation/reduced skew is used, and so the logical storage space is (6, 3).

#include <SWR4.h>

Inheritance diagram for SWR4:

Public Member Functions

 SWR4 (const R4 &F)
 
- Public Member Functions inherited from PrimitiveTensor< SWR4, 6, 3 >
 PrimitiveTensor ()=default
 Default constructor.
 
 PrimitiveTensor (const torch::Tensor &tensor, Size batch_dim)
 Construct from another torch::Tensor given batch dimension.
 
 PrimitiveTensor (const torch::Tensor &tensor)
 Construct from another torch::Tensor and infer batch dimension.
 
 operator Tensor () const
 Implicit conversion to a Tensor and loses information on the fixed base shape.
 
- Public Member Functions inherited from TensorBase< Derived >
 TensorBase ()=default
 Default constructor.
 
 TensorBase (const torch::Tensor &tensor, Size batch_dim)
 Construct from another torch::Tensor.
 
 TensorBase (const Derived &tensor)
 Copy constructor.
 
 TensorBase (Real)=delete
 
Derived clone (torch::MemoryFormat memory_format=torch::MemoryFormat::Contiguous) const
 
Derived detach () const
 Discard function graph.
 
Derived to (const torch::TensorOptions &options) const
 Change tensor options.
 
Derived operator- () const
 Negation.
 
bool batched () const
 Whether the tensor is batched.
 
Size batch_dim () const
 Return the number of batch dimensions.
 
Size base_dim () const
 Return the number of base dimensions.
 
TensorShapeRef batch_sizes () const
 Return the batch size.
 
Size batch_size (Size index) const
 Return the size of a batch axis.
 
TensorShapeRef base_sizes () const
 Return the base size.
 
Size base_size (Size index) const
 Return the size of a base axis.
 
Size base_storage () const
 Return the flattened storage needed just for the base indices.
 
Derived batch_index (indexing::TensorIndicesRef indices) const
 Get a tensor by slicing on the batch dimensions.
 
neml2::Tensor base_index (indexing::TensorIndicesRef indices) const
 Get a tensor by slicing on the base dimensions.
 
void batch_index_put_ (indexing::TensorIndicesRef indices, const torch::Tensor &other)
 Set values by slicing on the batch dimensions.
 
void base_index_put_ (indexing::TensorIndicesRef indices, const torch::Tensor &other)
 Set values by slicing on the base dimensions.
 
Derived batch_expand (TensorShapeRef batch_size) const
 
neml2::Tensor base_expand (TensorShapeRef base_size) const
 Return a new view of the tensor with values broadcast along the base dimensions.
 
template<class Derived2 >
Derived batch_expand_as (const Derived2 &other) const
 Expand the batch to have the same shape as another tensor.
 
template<class Derived2 >
Derived2 base_expand_as (const Derived2 &other) const
 Expand the base to have the same shape as another tensor.
 
Derived batch_expand_copy (TensorShapeRef batch_size) const
 Return a new tensor with values broadcast along the batch dimensions.
 
neml2::Tensor base_expand_copy (TensorShapeRef base_size) const
 Return a new tensor with values broadcast along the base dimensions.
 
Derived batch_reshape (TensorShapeRef batch_shape) const
 Reshape batch dimensions.
 
neml2::Tensor base_reshape (TensorShapeRef base_shape) const
 Reshape base dimensions.
 
Derived batch_unsqueeze (Size d) const
 Unsqueeze a batch dimension.
 
neml2::Tensor base_unsqueeze (Size d) const
 Unsqueeze a base dimension.
 
Derived batch_transpose (Size d1, Size d2) const
 Transpose two batch dimensions.
 
neml2::Tensor base_transpose (Size d1, Size d2) const
 Transpose two base dimensions.
 

Additional Inherited Members

- Static Public Member Functions inherited from PrimitiveTensor< SWR4, 6, 3 >
static SWR4 empty (const torch::TensorOptions &options=default_tensor_options())
 Unbatched empty tensor.
 
static SWR4 empty (TensorShapeRef batch_shape, const torch::TensorOptions &options=default_tensor_options())
 Empty tensor given batch shape.
 
static SWR4 zeros (const torch::TensorOptions &options=default_tensor_options())
 Unbatched zero tensor.
 
static SWR4 zeros (TensorShapeRef batch_shape, const torch::TensorOptions &options=default_tensor_options())
 Zero tensor given batch shape.
 
static SWR4 ones (const torch::TensorOptions &options=default_tensor_options())
 Unbatched unit tensor.
 
static SWR4 ones (TensorShapeRef batch_shape, const torch::TensorOptions &options=default_tensor_options())
 Unit tensor given batch shape.
 
static SWR4 full (Real init, const torch::TensorOptions &options=default_tensor_options())
 Unbatched tensor filled with a given value given base shape.
 
static SWR4 full (TensorShapeRef batch_shape, Real init, const torch::TensorOptions &options=default_tensor_options())
 Full tensor given batch shape.
 
static Tensor identity_map (const torch::TensorOptions &)
 Derived tensor classes should define identity_map where appropriate.
 
- Static Public Member Functions inherited from TensorBase< Derived >
static Derived empty_like (const Derived &other)
 Empty tensor like another, i.e. same batch and base shapes, same tensor options, etc.
 
static Derived zeros_like (const Derived &other)
 Zero tensor like another, i.e. same batch and base shapes, same tensor options, etc.
 
static Derived ones_like (const Derived &other)
 Unit tensor like another, i.e. same batch and base shapes, same tensor options, etc.
 
static Derived full_like (const Derived &other, Real init)
 
static Derived linspace (const Derived &start, const Derived &end, Size nstep, Size dim=0, Size batch_dim=-1)
 Create a new tensor by adding a new batch dimension with linear spacing between start and end.
 
static Derived logspace (const Derived &start, const Derived &end, Size nstep, Size dim=0, Size batch_dim=-1, Real base=10)
 log-space equivalent of the linspace named constructor
 
- Static Public Attributes inherited from PrimitiveTensor< SWR4, 6, 3 >
static const TensorShape const_base_sizes
 The base shape.
 
static constexpr Size const_base_dim
 The base dim.
 
static const Size const_base_storage
 The base storage.
 

Constructor & Destructor Documentation

◆ SWR4()

SWR4 ( const R4 & F)