scaleMatrixGPU function

GPUTensor<Matrix> scaleMatrixGPU(
  1. GPUTensor<Matrix> m,
  2. double s,
  3. CommandBuffer tape
)

Implementation

GPUTensor<Matrix> scaleMatrixGPU(GPUTensor<Matrix> m, double s, CommandBuffer tape) {
  int numRows = m.shape[0];
  int numCols = m.shape[1];

  GPUTensor<Matrix> out = GPUTensor<Matrix>.empty(<int>[numRows, numCols]);

  tape.putInt(OP_SCALE_MATRIX);
  tape.putString(m.id);
  tape.putString(out.id);
  tape.putFloat(s);

  out.creator = GPUNode(
    [m],
        (CommandBuffer bTape) {
      bTape.putInt(OP_SCALE_MATRIX_BACKWARD);
      bTape.putString('${out.id}_grad');
      bTape.putString('${m.id}_grad');
      bTape.putFloat(s);
    },
    opName: 'scaleMatrixGPU',
    cost: numRows * numCols,
    extraParams: {'s': s},
  );

  return out;
}