elementWiseMultiplyGPU function

GPUTensor<Vector> elementWiseMultiplyGPU(
  1. GPUTensor<Vector> a,
  2. GPUTensor<Vector> b,
  3. CommandBuffer tape, {
  4. GPUTensor<Vector>? outTensor,
})

Appends the commands for element wise multiplication of two vectors a and b to tape. Creates and allocates a Tensor to store the results.

Implementation

GPUTensor<Vector> elementWiseMultiplyGPU(
    GPUTensor<Vector> a, GPUTensor<Vector> b, CommandBuffer tape,
    {GPUTensor<Vector>? outTensor}) {
  GPUTensor<Vector> out =
      outTensor ?? GPUTensor<Vector>(List<double>.filled(a.shape[0], 0.0));

  tape.putInt(OP_MULTIPLY);
  tape.putString(a.id);
  tape.putString(b.id);
  tape.putString(out.id);

  out.creator = GPUNode(
    [a, b],
    (CommandBuffer bTape) {
      bTape.putInt(OP_MULTIPLY_BACKWARD);
      bTape.putString(out.gradId);
      bTape.putString(b.id);
      bTape.putString(a.gradId);

      bTape.putInt(OP_MULTIPLY_BACKWARD);
      bTape.putString(out.gradId);
      bTape.putString(a.id);
      bTape.putString(b.gradId);
    },
    opName: 'elementWiseMultiplyGPU',
    cost: 1,
  );

  return out;
}