RNN descriptor for backward propagation. More...
#include <dnnl.hpp>
Collaboration diagram for dnnl::vanilla_rnn_backward::desc:
Public Member Functions | |
| desc (prop_kind aprop_kind, algorithm activation, rnn_direction direction, const memory::desc &src_layer_desc, const memory::desc &src_iter_desc, const memory::desc &weights_layer_desc, const memory::desc &weights_iter_desc, const memory::desc &bias_desc, const memory::desc &dst_layer_desc, const memory::desc &dst_iter_desc, const memory::desc &diff_src_layer_desc, const memory::desc &diff_src_iter_desc, const memory::desc &diff_weights_layer_desc, const memory::desc &diff_weights_iter_desc, const memory::desc &diff_bias_desc, const memory::desc &diff_dst_layer_desc, const memory::desc &diff_dst_iter_desc, rnn_flags flags=rnn_flags::undef, float alpha=0.0f, float beta=0.0f) | |
Initializes an RNN descriptor for backward propagation using prop_kind, activation, direction, and memory descriptors. More... | |
Detailed Description
RNN descriptor for backward propagation.
Constructor & Destructor Documentation
◆ desc()
|
inline |
Initializes an RNN descriptor for backward propagation using prop_kind, activation, direction, and memory descriptors.
alpha, beta and flags are parameters to the RNN descriptor. If activation is eltwise_relu, alpha represents the negative slope. beta and flags are currently ignored.
- Note
- All memory descriptors are allowed to be initialized with dnnl::memory::format_tag::any value of
format_kind.
src_iter_desc (simultaneously with diff_src_iter_desc), bias_desc (simultaneously with diff_bias_desc), and dst_iter_desc (simultaneously with diff_src_iter_desc) are allowed point to a zero memory descriptor, which would indicate that the RNN primitive should not use them and consider them to be zero values.
The documentation for this struct was generated from the following file:
- include/dnnl.hpp