mir_interpreter::GatherImpl< T, IndicesT > Struct Template Reference

Static Public Member Functions
static void	run (const TensorVariant &datav, const TensorVariant &indicesv, const ops::GatherOp &op, mir::TensorVariant &res)

Detailed Description

template<typename T, typename IndicesT>
struct mir_interpreter::GatherImpl< T, IndicesT >

Definition at line 27 of file Gather.cpp.

Member Function Documentation

run()

template<typename T , typename IndicesT >

void mir_interpreter::GatherImpl< T, IndicesT >::run ( const TensorVariant &  datav, const TensorVariant &  indicesv, const ops::GatherOp &  op, mir::TensorVariant &  res  )

static

Definition at line 34 of file Gather.cpp.

{
  const auto &data_shape = datav.getShape();
  const auto &indices_shape = indicesv.getShape();
  Tensor<T> data(datav);
  Tensor<T> output(res);
  Tensor<IndicesT> indices(indicesv);
 
  int32_t axis = op.getAxis();
  if (axis < 0)
    axis += data_shape.rank();
  assert(axis >= 0 && axis < data_shape.rank());
  int32_t axis_size = data_shape.dim(axis);
  int32_t num_indices = indices_shape.numElements();
 
  int32_t outer_size = 1;
  for (int32_t i = 0; i < axis; ++i)
    outer_size *= data_shape.dim(i);
 
  int32_t inner_size = 1;
  for (int32_t i = axis + 1; i < data_shape.rank(); ++i)
    inner_size *= data_shape.dim(i);
 
  for (int32_t outer = 0; outer < outer_size; ++outer)
  {
    for (int32_t i = 0; i < num_indices; ++i)
    {
      auto index = indices.atOffset(i);
      assert(index >= 0 && index < axis_size);
      for (int32_t inner = 0; inner < inner_size; inner++)
      {
        output.atOffset((outer * num_indices + i) * inner_size + inner) =
          data.atOffset((outer * axis_size + index) * inner_size + inner);
      }
    }
  }
}

References mir::Tensor< T >::atOffset(), mir::ops::GatherOp::getAxis(), and mir::TensorVariant::getShape().

Referenced by package.infer.session::inference().

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The documentation for this struct was generated from the following file:

• compiler/mir-interpreter/src/ops/Gather.cpp