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Matrix Multiplication

Overview

A primitive to perform matrix-matrix multiplication. More…

// structs

struct dnnl::matmul;

// global functions

dnnl_status_t DNNL_API dnnl_matmul_primitive_desc_create(
    dnnl_primitive_desc_t* primitive_desc,
    dnnl_engine_t engine,
    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,
    const_dnnl_primitive_attr_t attr
    );

Detailed Documentation

A primitive to perform matrix-matrix multiplication.

The batched mode is supported with 3D tensors.

See also:

Matrix Multiplication in developer guide

Global Functions

dnnl_status_t DNNL_API dnnl_matmul_primitive_desc_create(
    dnnl_primitive_desc_t* primitive_desc,
    dnnl_engine_t engine,
    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,
    const_dnnl_primitive_attr_t attr
    )

Creates a primitive descriptor for a matrix multiplication primitive.

Parameters:

primitive_desc	Output primitive descriptor.
engine	Engine to use.
src_desc	Source memory descriptor (matrix A)
weights_desc	Weights memory descriptor (matrix B)
bias_desc	Bias memory descriptor. Passing NULL, a zero memory descriptor, or a memory descriptor with format_kind set to dnnl_format_kind_undef disables the bias term.
dst_desc	Destination memory descriptor (matrix C).
attr	Primitive attributes (can be NULL).

Returns:

dnnl_success on success and a status describing the error otherwise.

struct dnnl::vanilla_rnn_forward::primitive_desc struct dnnl::matmul