LRN
Overview
A primitive to perform local response normalization (LRN) across or within channels. More…
// structs struct dnnl::lrn_backward; struct dnnl::lrn_forward; // global functions dnnl_status_t DNNL_API dnnl_lrn_forward_primitive_desc_create( dnnl_primitive_desc_t* primitive_desc, dnnl_engine_t engine, dnnl_prop_kind_t prop_kind, dnnl_alg_kind_t alg_kind, const_dnnl_memory_desc_t src_desc, const_dnnl_memory_desc_t dst_desc, dnnl_dim_t local_size, float alpha, float beta, float k, const_dnnl_primitive_attr_t attr ); dnnl_status_t DNNL_API dnnl_lrn_backward_primitive_desc_create( dnnl_primitive_desc_t* primitive_desc, dnnl_engine_t engine, dnnl_alg_kind_t alg_kind, const_dnnl_memory_desc_t diff_src_desc, const_dnnl_memory_desc_t diff_dst_desc, const_dnnl_memory_desc_t src_desc, dnnl_dim_t local_size, float alpha, float beta, float k, const_dnnl_primitive_desc_t hint_fwd_pd, const_dnnl_primitive_attr_t attr );
Detailed Documentation
A primitive to perform local response normalization (LRN) across or within channels.
See also:
Local Response Normalization (LRN) in developer guide
Global Functions
dnnl_status_t DNNL_API dnnl_lrn_forward_primitive_desc_create( dnnl_primitive_desc_t* primitive_desc, dnnl_engine_t engine, dnnl_prop_kind_t prop_kind, dnnl_alg_kind_t alg_kind, const_dnnl_memory_desc_t src_desc, const_dnnl_memory_desc_t dst_desc, dnnl_dim_t local_size, float alpha, float beta, float k, const_dnnl_primitive_attr_t attr )
Creates a primitive descriptor for an LRN forward propagation primitive.
Parameters:
primitive_desc | Output primitive_descriptor. |
engine | Engine to use. |
prop_kind | Propagation kind. Possible values are dnnl_forward_training and dnnl_forward_inference. |
alg_kind | LRN algorithm kind: either dnnl_lrn_across_channels or dnnl_lrn_within_channel. |
src_desc | Source memory descriptor. |
dst_desc | Destination memory descriptor. |
local_size | Regularization local size. |
alpha | The alpha regularization parameter. |
beta | The beta regularization parameter. |
k | The k regularization parameter. |
attr | Primitive attributes (can be NULL). |
Returns:
dnnl_success on success and a status describing the error otherwise.
dnnl_status_t DNNL_API dnnl_lrn_backward_primitive_desc_create( dnnl_primitive_desc_t* primitive_desc, dnnl_engine_t engine, dnnl_alg_kind_t alg_kind, const_dnnl_memory_desc_t diff_src_desc, const_dnnl_memory_desc_t diff_dst_desc, const_dnnl_memory_desc_t src_desc, dnnl_dim_t local_size, float alpha, float beta, float k, const_dnnl_primitive_desc_t hint_fwd_pd, const_dnnl_primitive_attr_t attr )
Creates a primitive descriptor for an LRN backward propagation primitive.
Parameters:
primitive_desc | Output primitive_descriptor. |
engine | Engine to use. |
alg_kind | LRN algorithm kind: either dnnl_lrn_across_channels or dnnl_lrn_within_channel. |
diff_src_desc | Diff source memory descriptor. |
diff_dst_desc | Diff destination memory descriptor. |
src_desc | Source memory descriptor. |
local_size | Regularization local size. |
alpha | The alpha regularization parameter. |
beta | The beta regularization parameter. |
k | The k regularization parameter. |
hint_fwd_pd | Primitive descriptor for a respective forward propagation primitive. |
attr | Primitive attributes (can be NULL). |
Returns:
dnnl_success on success and a status describing the error otherwise.