struct dnnl::rnn_primitive_desc_base¶

Overview¶

Base class for primitive descriptors for RNN primitives. More…

#include <dnnl.hpp>

struct rnn_primitive_desc_base: public dnnl::primitive_desc
{
    // construction

    rnn_primitive_desc_base();

    rnn_primitive_desc_base(
        dnnl_primitive_desc_t pd,
        dnnl::prop_kind aprop_kind,
        dnnl::algorithm cell_kind
        );

    // methods

    memory::desc src_layer_desc() const;
    memory::desc src_iter_desc() const;
    memory::desc src_iter_c_desc() const;
    memory::desc weights_layer_desc() const;
    memory::desc weights_iter_desc() const;
    memory::desc weights_peephole_desc() const;
    memory::desc weights_projection_desc() const;
    memory::desc bias_desc() const;
    memory::desc dst_layer_desc() const;
    memory::desc dst_iter_desc() const;
    memory::desc dst_iter_c_desc() const;
    memory::desc diff_src_layer_desc() const;
    memory::desc diff_src_iter_desc() const;
    memory::desc diff_src_iter_c_desc() const;
    memory::desc diff_weights_layer_desc() const;
    memory::desc diff_weights_iter_desc() const;
    memory::desc diff_weights_peephole_desc() const;
    memory::desc diff_weights_projection_desc() const;
    memory::desc diff_bias_desc() const;
    memory::desc diff_dst_layer_desc() const;
    memory::desc diff_dst_iter_desc() const;
    memory::desc diff_dst_iter_c_desc() const;
    primitive_desc();
    primitive_desc();
};

// direct descendants

struct primitive_desc;
struct primitive_desc;
struct primitive_desc;
struct primitive_desc;
struct primitive_desc;
struct primitive_desc;
struct primitive_desc;
struct primitive_desc;

Inherited Members¶

public:
    // methods

    handle<T, traits>& operator = (const handle<T, traits>&);
    handle<T, traits>& operator = (handle<T, traits>&&);
    void reset(T t, bool weak = false);
    T get(bool allow_empty = false) const;
    operator T () const;
    operator bool () const;
    bool operator == (const handle<T, traits>& other) const;
    bool operator != (const handle& other) const;
    engine get_engine() const;
    const char* impl_info_str() const;
    memory::dim query_s64(query what) const;
    memory::desc query_md(query what, int idx = 0) const;
    memory::desc src_desc(int idx) const;
    memory::desc dst_desc(int idx) const;
    memory::desc weights_desc(int idx) const;
    memory::desc diff_src_desc(int idx) const;
    memory::desc diff_dst_desc(int idx) const;
    memory::desc diff_weights_desc(int idx) const;
    memory::desc src_desc() const;
    memory::desc dst_desc() const;
    memory::desc weights_desc() const;
    memory::desc diff_src_desc() const;
    memory::desc diff_dst_desc() const;
    memory::desc diff_weights_desc() const;
    memory::desc workspace_desc() const;
    memory::desc scratchpad_desc() const;
    engine scratchpad_engine() const;
    primitive_attr get_primitive_attr() const;
    dnnl::primitive::kind get_kind() const;
    bool next_impl();
    primitive_desc_base();
    primitive_desc_base();
    primitive_desc_base();
    primitive_desc_base();

Detailed Documentation¶

Base class for primitive descriptors for RNN primitives.

Construction¶

rnn_primitive_desc_base()

Default constructor. Produces an empty object.

rnn_primitive_desc_base(
    dnnl_primitive_desc_t pd,
    dnnl::prop_kind aprop_kind,
    dnnl::algorithm cell_kind
    )

Constructs an RNN primitive descriptor base from a C API primitive descriptor while checking that it actually describes the expected primitive by comparing propagation and primitive kinds.

Parameters:

pd	C API primitive descriptor.
aprop_kind	Expected propagation kind.
cell_kind	Expected cell kind.

Methods¶

memory::desc src_layer_desc() const

Returns source layer memory descriptor.

Returns:

Source layer memory descriptor.

memory::desc src_iter_desc() const

Returns source iteration memory descriptor.

Returns:

Source iteration memory descriptor.

A zero memory descriptor if the primitive does not have a source iteration parameter.

memory::desc src_iter_c_desc() const

Returns source recurrent cell state memory descriptor.

Returns:

Source recurrent cell state memory descriptor.

memory::desc weights_layer_desc() const

Returns weights layer memory descriptor.

Returns:

Weights layer memory descriptor.

memory::desc weights_iter_desc() const

Returns weights iteration memory descriptor.

Returns:

Weights iteration memory descriptor.

memory::desc weights_peephole_desc() const

Returns weights peephole memory descriptor.

Returns:

Weights peephole memory descriptor.

memory::desc weights_projection_desc() const

Returns weights projection memory descriptor.

Returns:

Weights projection memory descriptor.

memory::desc bias_desc() const

Returns bias memory descriptor.

Returns:

Bias memory descriptor.

A zero memory descriptor if the primitive does not have a bias parameter.

memory::desc dst_layer_desc() const

Returns destination layer memory descriptor.

Returns:

Destination layer memory descriptor.

memory::desc dst_iter_desc() const

Returns destination iteration memory descriptor.

Returns:

Destination iteration memory descriptor.

A zero memory descriptor if the primitive does not have a destination iteration parameter.

memory::desc dst_iter_c_desc() const

Returns destination recurrent cell state memory descriptor.

Returns:

Destination recurrent cell state memory descriptor.

memory::desc diff_src_layer_desc() const

Returns diff source layer memory descriptor.

Returns:

Diff source layer memory descriptor.

memory::desc diff_src_iter_desc() const

Returns diff source iteration memory descriptor.

Returns:

Diff source iteration memory descriptor.

A zero memory descriptor if the primitive does not have a diff source iteration parameter.

memory::desc diff_src_iter_c_desc() const

Returns diff source recurrent cell state memory descriptor.

Returns:

Diff source recurrent cell state memory descriptor.

memory::desc diff_weights_layer_desc() const

Returns diff weights layer memory descriptor.

Returns:

Diff weights layer memory descriptor.

memory::desc diff_weights_iter_desc() const

Returns diff weights iteration memory descriptor.

Returns:

Diff weights iteration memory descriptor.

memory::desc diff_weights_peephole_desc() const

Returns diff weights peephole memory descriptor.

Returns:

Diff weights peephole memory descriptor.

memory::desc diff_weights_projection_desc() const

Returns diff weights projection memory descriptor.

Returns:

Diff weights projection memory descriptor.

memory::desc diff_bias_desc() const

Returns diff bias memory descriptor.

Returns:

Diff bias memory descriptor.

A zero memory descriptor if the primitive does not have a diff bias parameter.

memory::desc diff_dst_layer_desc() const

Returns diff destination layer memory descriptor.

Returns:

Diff destination layer memory descriptor.

memory::desc diff_dst_iter_desc() const

Returns diff destination iteration memory descriptor.

Returns:

Diff destination iteration memory descriptor.

A zero memory descriptor if the primitive does not have a diff destination iteration parameter.

memory::desc diff_dst_iter_c_desc() const

Returns diff destination recurrent cell state memory descriptor.

Returns:

Diff destination recurrent cell state memory descriptor.

primitive_desc()

Constructs a primitive descriptor.

Note

If allow_empty is true, the constructor does not throw if a primitive descriptor cannot be created. But calling next_impl() in this case will throw.

Note

This is a low-level implementation detail that is typically not needed in application code.

Parameters:

desc	Constant C API operation descriptor.
attr	Pointer to primitive attributes. It is safe to pass nullptr to indicate absence of attributes.
aengine	Engine to use.
hint_fwd_pd	C API primitive descriptor for a forward propagation primitive. It is used as a hint for deciding which memory format to use for backward propagation or weights gradient.
allow_empty	A flag signifying whether construction is allowed to fail without throwing an exception. In this case an empty object will be produced. This flag is optional and defaults to false.

struct dnnl::lstm_forward::primitive_desc struct dnnl::vanilla_rnn_backward

oneDNN v2.5.4 documentation

struct dnnl::rnn_primitive_desc_base¶

Overview¶

Inherited Members¶

Detailed Documentation¶

Construction¶

Methods¶