struct dnnl_convolution_desc_t


A descriptor of a convolution operation. More…

#include <dnnl_types.h>

struct dnnl_convolution_desc_t
    // fields

    dnnl_primitive_kind_t primitive_kind;
    dnnl_prop_kind_t prop_kind;
    dnnl_alg_kind_t alg_kind;
    dnnl_memory_desc_t src_desc;
    dnnl_memory_desc_t diff_src_desc;
    dnnl_memory_desc_t weights_desc;
    dnnl_memory_desc_t diff_weights_desc;
    dnnl_memory_desc_t bias_desc;
    dnnl_memory_desc_t diff_bias_desc;
    dnnl_memory_desc_t dst_desc;
    dnnl_memory_desc_t diff_dst_desc;
    dnnl_dims_t strides;
    dnnl_dims_t dilates;
    dnnl_dims_t padding[2];
    dnnl_data_type_t accum_data_type;

Detailed Documentation

A descriptor of a convolution operation.


dnnl_primitive_kind_t primitive_kind

The kind of primitive.

Used for self-identifying the primitive descriptor. Must be dnnl_convolution.

dnnl_prop_kind_t prop_kind

The kind of propagation.

Possible values: dnnl_forward_training, dnnl_forward_inference, dnnl_backward_data, dnnl_backward_weights, and dnnl_backward_bias.

dnnl_alg_kind_t alg_kind

The kind of the convolution algorithm.

Possible values: dnnl_convolution_direct.

dnnl_memory_desc_t src_desc

Source memory descriptor.

dnnl_memory_desc_t diff_src_desc

Source gradient memory descriptor.

dnnl_memory_desc_t weights_desc

Weights memory descriptor.

dnnl_memory_desc_t diff_weights_desc

Weights gradient memory descriptor.

dnnl_memory_desc_t bias_desc

Bias memory descriptor.

dnnl_memory_desc_t diff_bias_desc

Bias gradient memory descriptor.

dnnl_memory_desc_t dst_desc

Destination memory descriptor.

dnnl_memory_desc_t diff_dst_desc

Destination gradient memory descriptor.

dnnl_dims_t strides

Convolution strides in each spatial dimension.

dnnl_dims_t dilates

Convolution dilates in each spatial dimension.

dnnl_dims_t padding[2]

Padding in each spatial dimension.

padding[0] is a padding in the beginning (padding_l), padding[1] is a padding in the end (padding_r).

dnnl_data_type_t accum_data_type

The accumulator data type. Initialized automatically.