addScalarMatrixGPU function

GPUTensor<Matrix> addScalarMatrixGPU(
  1. GPUTensor<Matrix> m,
  2. GPUTensor<Scalar> b,
  3. CommandBuffer tape
)

Implementation

GPUTensor<Matrix> addScalarMatrixGPU(GPUTensor<Matrix> m, GPUTensor<Scalar> b, CommandBuffer tape) {
  int rows = m.shape[0];
  int cols = m.shape[1];

  List<int> shape = <int>[rows, cols];
  GPUTensor<Matrix> out = GPUTensor<Matrix>.empty(shape);

  tape.putInt(OP_BROADCAST_ADD);
  tape.putString(m.id);
  tape.putString(b.id);
  tape.putString(out.id);

  out.creator = GPUNode(
    <GPUTensor>[m, b],
        (CommandBuffer bTape) {
      bTape.putInt(OP_ADD_INTO);
      bTape.putString('${out.id}_grad');
      bTape.putString('${m.id}_grad');

      bTape.putInt(OP_SUM_REDUCE);
      bTape.putString('${out.id}_grad');
      bTape.putString('${b.id}_grad');
    },
    opName: 'addScalarToMatrixGPU',
    cost: rows * cols,
  );

  return out;
}