productop.h

Go to the documentation of this file.

#pragma once

#include <vector>
#include "compute/operation.h"
#include "compute/variable.h"
#include "tensor/tensor.h"
#include "utilities_internal.h"
#include "compute/product/product_internal.h"
#include "math/scalar_tensor_product.h"

namespace magmadnn {

namespace internal {
enum product_op_t {
    SCALAR_PROD_TENSOR,
    TENSOR_PROD_SCALAR,
    TENSOR_PROD_TENSOR
};
}   // namespace internal

namespace op {

template <typename T>
class ProductOp : public Operation<T> {
public:
    ProductOp(T alpha, Operation<T>* a, Operation<T>* b, bool copy=true, bool needs_grad=true);

    
    std::string to_string() { return "(" + a->to_string() + " * " + b->to_string() + ")"; }
protected:
    Tensor<T> *_eval(bool recompute=true);
    Tensor<T> *_grad(Operation<T> *consumer, Operation<T> *var, Tensor<T> *grad);

    T alpha;
    Operation<T> *a;
    Operation<T> *b;

    Tensor<T> *a_tensor;
    Tensor<T> *b_tensor;

    internal::product_op_t op_type;

    bool copy;
};

template <typename T>
ProductOp<T>* product(Operation<T> *a, Operation<T> *b, bool copy=true, bool needs_grad=true);

template <typename T>
ProductOp<T>* product(T alpha, Operation<T> *a, Operation<T> *b, bool copy=true, bool needs_grad=true);

} // namespace op
} // namespace magmadnn