Descriptor for an LSTM backward propagation primitive. More...
#include <dnnl.hpp>

Public Member Functions | |
| desc (prop_kind aprop_kind, rnn_direction direction, const memory::desc &src_layer_desc, const memory::desc &src_iter_desc, const memory::desc &src_iter_c_desc, const memory::desc &weights_layer_desc, const memory::desc &weights_iter_desc, const memory::desc &weights_peephole_desc, const memory::desc &weights_projection_desc, const memory::desc &bias_desc, const memory::desc &dst_layer_desc, const memory::desc &dst_iter_desc, const memory::desc &dst_iter_c_desc, const memory::desc &diff_src_layer_desc, const memory::desc &diff_src_iter_desc, const memory::desc &diff_src_iter_c_desc, const memory::desc &diff_weights_layer_desc, const memory::desc &diff_weights_iter_desc, const memory::desc &diff_weights_peephole_desc, const memory::desc &diff_weights_projection_desc, const memory::desc &diff_bias_desc, const memory::desc &diff_dst_layer_desc, const memory::desc &diff_dst_iter_desc, const memory::desc &diff_dst_iter_c_desc, rnn_flags flags=rnn_flags::undef) | |
Constructs an LSTM (with or without peephole and with or without projection) descriptor for backward propagation using prop_kind, direction, and memory descriptors. More... | |
| desc (prop_kind aprop_kind, rnn_direction direction, const memory::desc &src_layer_desc, const memory::desc &src_iter_desc, const memory::desc &src_iter_c_desc, const memory::desc &weights_layer_desc, const memory::desc &weights_iter_desc, const memory::desc &weights_peephole_desc, const memory::desc &bias_desc, const memory::desc &dst_layer_desc, const memory::desc &dst_iter_desc, const memory::desc &dst_iter_c_desc, const memory::desc &diff_src_layer_desc, const memory::desc &diff_src_iter_desc, const memory::desc &diff_src_iter_c_desc, const memory::desc &diff_weights_layer_desc, const memory::desc &diff_weights_iter_desc, const memory::desc &diff_weights_peephole_desc, const memory::desc &diff_bias_desc, const memory::desc &diff_dst_layer_desc, const memory::desc &diff_dst_iter_desc, const memory::desc &diff_dst_iter_c_desc, rnn_flags flags=rnn_flags::undef) | |
Constructs an LSTM (with or without peephole) descriptor for backward propagation using prop_kind, direction, and memory descriptors. More... | |
| desc (prop_kind aprop_kind, rnn_direction direction, const memory::desc &src_layer_desc, const memory::desc &src_iter_desc, const memory::desc &src_iter_c_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 &dst_iter_c_desc, const memory::desc &diff_src_layer_desc, const memory::desc &diff_src_iter_desc, const memory::desc &diff_src_iter_c_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, const memory::desc &diff_dst_iter_c_desc, rnn_flags flags=rnn_flags::undef) | |
Constructs an LSTM descriptor for backward propagation using prop_kind, direction, and memory descriptors. More... | |
Descriptor for an LSTM backward propagation primitive.
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inline |
Constructs an LSTM (with or without peephole and with or without projection) descriptor for backward propagation using prop_kind, direction, and memory descriptors.
The following arguments may point to a zero memory descriptor:
src_iter_desc together with src_iter_c_desc, diff_src_iter_desc, and diff_src_iter_c_desc,weights_peephole_desc together with diff_weights_peephole_desc bias_desc together with diff_bias_desc,dst_iter_desc together with dst_iter_c_desc, diff_dst_iter_desc, and diff_dst_iter_c_desc.This would then indicate that the LSTM backward propagation primitive should not use them and should default to zero values instead.
The weights_projection_desc together with diff_weights_projection_desc may point to a zero memory descriptor. This would then indicate that the LSTM doesn't have recurrent projection layer.
format_tag.| aprop_kind | Propagation kind. Must be dnnl::prop_kind::backward. |
| direction | RNN direction. See dnnl::rnn_direction for more info. |
| src_layer_desc | Memory descriptor for the input vector. |
| src_iter_desc | Memory descriptor for the input recurrent hidden state vector. |
| src_iter_c_desc | Memory descriptor for the input recurrent cell state vector. |
| weights_layer_desc | Memory descriptor for the weights applied to the layer input. |
| weights_iter_desc | Memory descriptor for the weights applied to the recurrent input. |
| weights_peephole_desc | Memory descriptor for the weights applied to the cell states (according to the Peephole LSTM formula). |
| weights_projection_desc | Memory descriptor for the weights applied to the hidden states to get the recurrent projection (according to the Projection LSTM formula). |
| bias_desc | Bias memory descriptor. |
| dst_layer_desc | Memory descriptor for the output vector. |
| dst_iter_desc | Memory descriptor for the output recurrent hidden state vector. |
| dst_iter_c_desc | Memory descriptor for the output recurrent cell state vector. |
| diff_src_layer_desc | Memory descriptor for the diff of input vector. |
| diff_src_iter_desc | Memory descriptor for the diff of input recurrent hidden state vector. |
| diff_src_iter_c_desc | Memory descriptor for the diff of input recurrent cell state vector. |
| diff_weights_layer_desc | Memory descriptor for the diff of weights applied to the layer input. |
| diff_weights_iter_desc | Memory descriptor for the diff of weights applied to the recurrent input. |
| diff_weights_peephole_desc | Memory descriptor for the diff of weights applied to the cell states (according to the Peephole LSTM formula). |
| diff_weights_projection_desc | Memory descriptor for the diff of weights applied to the hidden states to get the recurrent projection (according to the Projection LSTM formula). |
| diff_bias_desc | Diff bias memory descriptor. |
| diff_dst_layer_desc | Memory descriptor for the diff of output vector. |
| diff_dst_iter_desc | Memory descriptor for the diff of output recurrent hidden state vector. |
| diff_dst_iter_c_desc | Memory descriptor for the diff of output recurrent cell state vector. |
| flags | Unused. |
|
inline |
Constructs an LSTM (with or without peephole) descriptor for backward propagation using prop_kind, direction, and memory descriptors.
The following arguments may point to a zero memory descriptor:
src_iter_desc together with src_iter_c_desc, diff_src_iter_desc, and diff_src_iter_c_desc,weights_peephole_desc together with diff_weights_peephole_desc bias_desc together with diff_bias_desc,dst_iter_desc together with dst_iter_c_desc, diff_dst_iter_desc, and diff_dst_iter_c_desc.This would then indicate that the LSTM backward propagation primitive should not use them and should default to zero values instead.
format_tag.| aprop_kind | Propagation kind. Must be dnnl::prop_kind::backward. |
| direction | RNN direction. See dnnl::rnn_direction for more info. |
| src_layer_desc | Memory descriptor for the input vector. |
| src_iter_desc | Memory descriptor for the input recurrent hidden state vector. |
| src_iter_c_desc | Memory descriptor for the input recurrent cell state vector. |
| weights_layer_desc | Memory descriptor for the weights applied to the layer input. |
| weights_iter_desc | Memory descriptor for the weights applied to the recurrent input. |
| weights_peephole_desc | Memory descriptor for the weights applied to the cell states (according to the Peephole LSTM formula). |
| bias_desc | Bias memory descriptor. |
| dst_layer_desc | Memory descriptor for the output vector. |
| dst_iter_desc | Memory descriptor for the output recurrent hidden state vector. |
| dst_iter_c_desc | Memory descriptor for the output recurrent cell state vector. |
| diff_src_layer_desc | Memory descriptor for the diff of input vector. |
| diff_src_iter_desc | Memory descriptor for the diff of input recurrent hidden state vector. |
| diff_src_iter_c_desc | Memory descriptor for the diff of input recurrent cell state vector. |
| diff_weights_layer_desc | Memory descriptor for the diff of weights applied to the layer input. |
| diff_weights_iter_desc | Memory descriptor for the diff of weights applied to the recurrent input. |
| diff_weights_peephole_desc | Memory descriptor for the diff of weights applied to the cell states (according to the Peephole LSTM formula). |
| diff_bias_desc | Diff bias memory descriptor. |
| diff_dst_layer_desc | Memory descriptor for the diff of output vector. |
| diff_dst_iter_desc | Memory descriptor for the diff of output recurrent hidden state vector. |
| diff_dst_iter_c_desc | Memory descriptor for the diff of output recurrent cell state vector. |
| flags | Unused. |
|
inline |
Constructs an LSTM descriptor for backward propagation using prop_kind, direction, and memory descriptors.
The following arguments may point to a zero memory descriptor:
src_iter_desc together with src_iter_c_desc, diff_src_iter_desc, and diff_src_iter_c_desc,bias_desc together with diff_bias_desc,dst_iter_desc together with dst_iter_c_desc, diff_dst_iter_desc, and diff_dst_iter_c_desc.This would then indicate that the LSTM backward propagation primitive should not use them and should default to zero values instead.
format_tag.| aprop_kind | Propagation kind. Must be dnnl::prop_kind::backward. |
| direction | RNN direction. See dnnl::rnn_direction for more info. |
| src_layer_desc | Memory descriptor for the input vector. |
| src_iter_desc | Memory descriptor for the input recurrent hidden state vector. |
| src_iter_c_desc | Memory descriptor for the input recurrent cell state vector. |
| weights_layer_desc | Memory descriptor for the weights applied to the layer input. |
| weights_iter_desc | Memory descriptor for the weights applied to the recurrent input. |
| bias_desc | Bias memory descriptor. |
| dst_layer_desc | Memory descriptor for the output vector. |
| dst_iter_desc | Memory descriptor for the output recurrent hidden state vector. |
| dst_iter_c_desc | Memory descriptor for the output recurrent cell state vector. |
| diff_src_layer_desc | Memory descriptor for the diff of input vector. |
| diff_src_iter_desc | Memory descriptor for the diff of input recurrent hidden state vector. |
| diff_src_iter_c_desc | Memory descriptor for the diff of input recurrent cell state vector. |
| diff_weights_layer_desc | Memory descriptor for the diff of weights applied to the layer input. |
| diff_weights_iter_desc | Memory descriptor for the diff of weights applied to the recurrent input. |
| diff_bias_desc | Diff bias memory descriptor. |
| diff_dst_layer_desc | Memory descriptor for the diff of output vector. |
| diff_dst_iter_desc | Memory descriptor for the diff of output recurrent hidden state vector. |
| diff_dst_iter_c_desc | Memory descriptor for the diff of output recurrent cell state vector. |
| flags | Unused. |