Inner product

A primitive to compute an inner product. More...

Functions
dnnl_status_t DNNL_API	dnnl_inner_product_forward_desc_init (dnnl_inner_product_desc_t *ip_desc, dnnl_prop_kind_t prop_kind, const dnnl_memory_desc_t *src_desc, const dnnl_memory_desc_t *weights_desc, const dnnl_memory_desc_t *bias_desc, const dnnl_memory_desc_t *dst_desc)
	Initializes an inner product descriptor ip_desc for forward propagation using prop_kind (possible values are dnnl_forward_training and dnnl_forward_inference) and memory descriptors. More...
dnnl_status_t DNNL_API	dnnl_inner_product_backward_data_desc_init (dnnl_inner_product_desc_t *ip_desc, const dnnl_memory_desc_t *diff_src_desc, const dnnl_memory_desc_t *weights_desc, const dnnl_memory_desc_t *diff_dst_desc)
	Initializes an inner product descriptor ip_desc for backward propagation with respect to data using memory descriptors. More...
dnnl_status_t DNNL_API	dnnl_inner_product_backward_weights_desc_init (dnnl_inner_product_desc_t *ip_desc, const dnnl_memory_desc_t *src_desc, const dnnl_memory_desc_t *diff_weights_desc, const dnnl_memory_desc_t *diff_bias_desc, const dnnl_memory_desc_t *diff_dst_desc)
	Initializes an inner product descriptor ip_desc for backward propagation with respect to weights using memory descriptors. More...

Detailed Description

A primitive to compute an inner product.

See also

Inner Product in developer guide

Inner Product in C++ API

Function Documentation

dnnl_inner_product_forward_desc_init()

dnnl_status_t DNNL_API dnnl_inner_product_forward_desc_init	(	dnnl_inner_product_desc_t *	ip_desc,
		dnnl_prop_kind_t	prop_kind,
		const dnnl_memory_desc_t *	src_desc,
		const dnnl_memory_desc_t *	weights_desc,
		const dnnl_memory_desc_t *	bias_desc,
		const dnnl_memory_desc_t *	dst_desc
	)

Initializes an inner product descriptor ip_desc for forward propagation using prop_kind (possible values are dnnl_forward_training and dnnl_forward_inference) and memory descriptors.

In order to create an inner product without bias, bias_desc should be either NULL or a pointer to a descriptor with memory format kind equals dnnl_format_kind_undef.

Note

Memory descriptors are allowed to be initialized with dnnl_format_kind_any value of format_kind.

Inputs:

• src (dnnl_query_src_md, 0)
• weights (dnnl_query_weights_md, 0)
• bias (dnnl_query_weights_md, 1), if created with bias

Outputs:

• dst (dnnl_query_dst_md, 0)

dnnl_inner_product_backward_data_desc_init()

dnnl_status_t DNNL_API dnnl_inner_product_backward_data_desc_init	(	dnnl_inner_product_desc_t *	ip_desc,
		const dnnl_memory_desc_t *	diff_src_desc,
		const dnnl_memory_desc_t *	weights_desc,
		const dnnl_memory_desc_t *	diff_dst_desc
	)

Initializes an inner product descriptor ip_desc for backward propagation with respect to data using memory descriptors.

Note

Memory descriptors are allowed to be initialized with dnnl_format_kind_any value of format_kind.

Inputs:

• diff_dst (dnnl_query_diff_dst_md, 0)
• weights (dnnl_query_weights_md, 0)

Outputs:

• diff_src (dnnl_query_diff_src_md, 0)

dnnl_inner_product_backward_weights_desc_init()

dnnl_status_t DNNL_API dnnl_inner_product_backward_weights_desc_init	(	dnnl_inner_product_desc_t *	ip_desc,
		const dnnl_memory_desc_t *	src_desc,
		const dnnl_memory_desc_t *	diff_weights_desc,
		const dnnl_memory_desc_t *	diff_bias_desc,
		const dnnl_memory_desc_t *	diff_dst_desc
	)

Initializes an inner product descriptor ip_desc for backward propagation with respect to weights using memory descriptors.

Note

Memory descriptors are allowed to be initialized with dnnl_format_kind_any value of format_kind.

Inputs:

• src (dnnl_query_src_md, 0)
• diff_dst (dnnl_query_diff_dst_md, 0)

Outputs:

• diff_weights (dnnl_query_diff_weights_md, 0)
• diff_bias (dnnl_query_diff_weights_md, 1), if created with bias