gather.h

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#ifndef INFINI_OPS_BASE_GATHER_H_
#define INFINI_OPS_BASE_GATHER_H_
 
#include "operator.h"
 
namespace infini::ops {
 
class Gather : public Operator<Gather> {
 public:
  Gather(const Tensor input, const Tensor index, const int64_t dim,
         const bool sparse_grad, Tensor out)
      : input_shape_{input.shape()},
        input_strides_{input.strides()},
        input_type_{input.dtype()},
        index_shape_{index.shape()},
        index_strides_{index.strides()},
        index_type_{index.dtype()},
        out_shape_{out.shape()},
        out_strides_{out.strides()},
        out_type_{out.dtype()},
        dim_{dim},
        sparse_grad_{sparse_grad},
        device_index_{out.device().index()} {}
 
  virtual void operator()(const Tensor input, const Tensor index,
                          const int64_t dim, const bool sparse_grad,
                          Tensor out) const = 0;
 
 protected:
  Tensor::Shape input_shape_;
 
  Tensor::Strides input_strides_;
 
  DataType input_type_;
 
  Tensor::Shape index_shape_;
 
  Tensor::Strides index_strides_;
 
  DataType index_type_;
 
  Tensor::Shape out_shape_;
 
  Tensor::Strides out_strides_;
 
  DataType out_type_;
 
  int64_t dim_{};
 
  bool sparse_grad_{};
 
  int device_index_{0};
};
 
}  // namespace infini::ops
 
#endif