Par04/src/Par04TorchInference.cc

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0026
0027 #ifdef USE_INFERENCE_TORCH
0028 #  include "Par04TorchInference.hh"
0029
0030 #  include "Par04InferenceInterface.hh"  // for Par04InferenceInterface
0031
0032 #  include <algorithm>  // for copy, max
0033 #  include <cassert>  // for assert
0034 #  include <cstddef>  // for size_t
0035 #  include <cstdint>  // for int64_t
0036 #  include <torch/torch.h>
0037 #  include <utility>  // for move
0038
0039 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0040
0041 Par04TorchInference::Par04TorchInference(G4String modelPath) : Par04InferenceInterface()
0042 {
0043   fModule = torch::jit::load(modelPath);
0044 }
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 void Par04TorchInference::RunInference(std::vector<float> aGenVector,
0049                                        std::vector<G4double>& aEnergies, int aSize)
0050 {
0051   // latentSize : size of the latent space
0052   // 4 is the size of the condition vector
0053   int latentSize = aGenVector.size() - 4;
0054   // split into latent and condition vectors
0055   std::vector<float> latent;
0056   for (int i = 0; i < latentSize; i++) {
0057     latent.push_back(aGenVector[i]);
0058   }
0059   std::vector<float> energy;
0060   energy.push_back(aGenVector[latentSize + 1]);
0061   std::vector<float> angle;
0062   energy.push_back(aGenVector[latentSize + 2]);
0063   std::vector<float> geo;
0064   for (int i = latentSize + 2; i < latentSize + 4; i++) {
0065     geo.push_back(aGenVector[i]);
0066   }
0067
0068   // convert vectors to tensors
0069   torch::Tensor latentVector = torch::tensor(latent);
0070   torch::Tensor eTensor = torch::tensor(energy);
0071   torch::Tensor angleTensor = torch::tensor(angle);
0072   torch::Tensor geoTensor = torch::tensor(geo);
0073
0074   std::vector<torch::jit::IValue> genInput;
0075
0076   genInput.push_back(latentVector);
0077   genInput.push_back(eTensor);
0078   genInput.push_back(angleTensor);
0079   genInput.push_back(geoTensor);
0080
0081   at::Tensor outTensor = fModule.forward(genInput).toTensor().contiguous();
0082
0083   std::vector<G4double> output(outTensor.data_ptr<float>(),
0084                                outTensor.data_ptr<float>() + outTensor.numel());
0085
0086   aEnergies.assign(aSize, 0);
0087   for (int i = 0; i < aSize; i++) {
0088     aEnergies[i] = output[i];
0089   }
0090 }
0091
0092 #endif