1 /* 2 * Copyright (c) 2018-2021 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_GRAPH_FULLY_CONNECTED_LAYER_NODE_H 25 #define ARM_COMPUTE_GRAPH_FULLY_CONNECTED_LAYER_NODE_H 26 27 #include "arm_compute/graph/INode.h" 28 29 namespace arm_compute 30 { 31 namespace graph 32 { 33 /** Fully Connected Layer node */ 34 class FullyConnectedLayerNode final : public INode 35 { 36 public: 37 /** Constructor 38 * 39 * @param[in] num_outputs Number of neurons in the layer 40 * @param[in] out_quant_info (Optional) Output quantization info 41 * @param[in] fc_info (Optional) Additional information about the fully connected layer 42 * @param[in] fast_math_hint (Optional) Fast math hint 43 */ 44 FullyConnectedLayerNode(unsigned int num_outputs, 45 QuantizationInfo out_quant_info = QuantizationInfo(), 46 FullyConnectedLayerInfo fc_info = FullyConnectedLayerInfo(), 47 FastMathHint fast_math_hint = FastMathHint::Disabled); 48 /** Sets the fast math fast hint 49 * 50 * @param[in] hint Hint to use for fullyconnected layer 51 */ 52 void set_fast_math_hint(FastMathHint hint); 53 /** Fast math hint accessor 54 * 55 * @return Fast math hint to be used by the node 56 */ 57 FastMathHint fast_math_hint() const; 58 /** Sets fused activation 59 * 60 * @param[in] fused_activation Fused activation to set 61 */ 62 void set_fused_activation(ActivationLayerInfo fused_activation); 63 /** Computes weights descriptor 64 * 65 * @warning Works for inputs with 1D batch space 66 * 67 * @param[in] input_descriptor Input descriptor 68 * @param[in] num_outputs Number of output neurons 69 * @param[in] fc_info (Optional) Additional information about the fully connected layer 70 * @param[in] weights_quant_info (Optional) Weights quantization info 71 * 72 * @return Weights descriptor 73 */ 74 static TensorDescriptor compute_weights_descriptor(const TensorDescriptor &input_descriptor, 75 unsigned int num_outputs, 76 FullyConnectedLayerInfo fc_info = FullyConnectedLayerInfo(), 77 const QuantizationInfo &weights_quant_info = QuantizationInfo()); 78 /** Computes fully connected layer output descriptor 79 * 80 * @warning Works for inputs with 1D batch space 81 * 82 * @param[in] input_descriptor Input descriptor 83 * @param[in] num_outputs Number of output neurons 84 * @param[in] out_quant_info (Optional) Weights quantization info 85 * 86 * @return Output descriptor 87 */ 88 static TensorDescriptor compute_output_descriptor(const TensorDescriptor &input_descriptor, 89 unsigned int num_outputs, 90 const QuantizationInfo &out_quant_info = QuantizationInfo()); 91 /** Fully connected layer addition information 92 * 93 * @return Additional information about the fully connected layer 94 */ 95 FullyConnectedLayerInfo info() const; 96 97 // Inherited overridden methods: 98 NodeType type() const override; 99 bool forward_descriptors() override; 100 TensorDescriptor configure_output(size_t idx) const override; 101 void accept(INodeVisitor &v) override; 102 103 static constexpr NodeType node_type = NodeType::FullyConnectedLayer; 104 105 private: 106 unsigned int _num_outputs; 107 QuantizationInfo _out_quant_info; 108 FullyConnectedLayerInfo _info; 109 FastMathHint _fast_math_hint; 110 }; 111 } // namespace graph 112 } // namespace arm_compute 113 #endif /* ARM_COMPUTE_GRAPH_FULLY_CONNECTED_LAYER_NODE_H */ 114