root/TMVA/ROperator_Tanh.hxx

0001 #ifndef TMVA_SOFIE_ROPERATOR_Tanh
0002 #define TMVA_SOFIE_ROPERATOR_Tanh
0003
0004 #include "TMVA/SOFIE_common.hxx"
0005 #include "TMVA/ROperator.hxx"
0006 #include "TMVA/RModel.hxx"
0007
0008 #include <sstream>
0009
0010 namespace TMVA{
0011 namespace Experimental{
0012 namespace SOFIE{
0013
0014 template <typename T>
0015 class ROperator_Tanh final : public ROperator
0016 {
0017
0018 private:
0019
0020    std::string fNX;
0021    std::string fNY;
0022    std::vector<size_t> fShape;
0023
0024 public:
0025    ROperator_Tanh(){}
0026    ROperator_Tanh(std::string nameX, std::string nameY):
0027       fNX(UTILITY::Clean_name(nameX)), fNY(UTILITY::Clean_name(nameY)){
0028          fInputTensorNames = { fNX };
0029          fOutputTensorNames = { fNY };
0030       }
0031
0032    std::vector<ETensorType> TypeInference(std::vector<ETensorType> input) override {
0033       return input;
0034    }
0035
0036    std::vector<std::vector<size_t>> ShapeInference(std::vector<std::vector<size_t>> input) override {
0037       auto ret = input; //suggest copy to compiler
0038       return ret;
0039    }
0040
0041    void Initialize(RModel& model) override {
0042        //input must be a graph input, or already initialized intermediate tensor
0043       if (model.CheckIfTensorAlreadyExist(fNX) == false){
0044         throw std::runtime_error("TMVA SOFIE Tanh Op Input Tensor is not found in model");
0045       }
0046       fShape = model.GetTensorShape(fNX);
0047       model.AddIntermediateTensor(fNY, model.GetTensorType(fNX), fShape);
0048
0049    }
0050
0051
0052    std::string Generate(std::string OpName) override {
0053       OpName = "op_" + OpName;
0054       if (fShape.empty()) {
0055          throw std::runtime_error("TMVA SOFIE Tanh operator called to Generate without being initialized first");
0056       }
0057       std::stringstream out;
0058       size_t length = ConvertShapeToLength(fShape);
0059       out << "\n//------ TANH\n";
0060       out << SP << "for (int id = 0; id < " << length << " ; id++){\n";
0061       out << SP << SP << "tensor_" << fNY << "[id] = std::tanh(tensor_" << fNX << "[id]);\n";
0062       out << SP << "}\n";
0063       return out.str();
0064    }
0065
0066    std::vector<std::string> GetStdLibs() override { return { std::string("cmath") };}
0067 };
0068
0069 }//SOFIE
0070 }//Experimental
0071 }//TMVA
0072
0073
0074 #endif //TMVA_SOFIE_ROPERATOR_Tanh