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#ifndef TENSORFLOW_KERNELS_TRAINING_OPS_H_
#define TENSORFLOW_KERNELS_TRAINING_OPS_H_
#include "tensorflow/core/framework/tensor_types.h"
#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
namespace tensorflow {
namespace functor {
// Each training algorithm has a ApplyXYZ functor struct declared in
// this header file. They are specialized for different devices
// (CPUDevice in training_ops.cc or GPUDevice in training_ops_gpu.cc).
template <typename Device, typename T>
struct ApplyGradientDescent {
void operator()(const Device& d, typename TTypes<T>::Flat var,
typename TTypes<T>::ConstScalar alpha,
typename TTypes<T>::ConstFlat delta);
};
template <typename Device, typename T>
struct ApplyAdagrad {
void operator()(const Device& d, typename TTypes<T>::Flat var,
typename TTypes<T>::Flat accum,
typename TTypes<T>::ConstScalar lr,
typename TTypes<T>::ConstFlat grad);
};
template <typename Device, typename T>
struct ApplyMomentum {
void operator()(const Device& d, typename TTypes<T>::Flat var,
typename TTypes<T>::Flat accum,
typename TTypes<T>::ConstScalar lr,
typename TTypes<T>::ConstFlat grad,
typename TTypes<T>::ConstScalar momentum);
};
template <typename Device, typename T>
struct ApplyAdam {
void operator()(const Device& d, typename TTypes<T>::Flat var,
typename TTypes<T>::Flat m, typename TTypes<T>::Flat v,
typename TTypes<T>::ConstScalar beta1_power,
typename TTypes<T>::ConstScalar beta2_power,
typename TTypes<T>::ConstScalar lr,
typename TTypes<T>::ConstScalar beta1,
typename TTypes<T>::ConstScalar beta2,
typename TTypes<T>::ConstScalar epsilon,
typename TTypes<T>::ConstFlat grad);
};
template <typename Device, typename T>
struct ApplyRMSProp {
void operator()(const Device& d, typename TTypes<T>::Flat var,
typename TTypes<T>::Flat ms, typename TTypes<T>::Flat mom,
typename TTypes<T>::ConstScalar lr,
typename TTypes<T>::ConstScalar rho,
typename TTypes<T>::ConstScalar momentum,
typename TTypes<T>::ConstScalar epsilon,
typename TTypes<T>::ConstFlat grad);
};
} // end namespace functor
} // end namespace tensorflow
#endif // TENSORFLOW_KERNELS_TRAINING_OPS_H_
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