get_partial_multiply_left_val Subroutine

  pure subroutine get_partial_multiply_left_val(this, upstream_grad, output)
    implicit none
    class(array_type), intent(in) :: this
    real(real32), dimension(:,:), intent(in) :: upstream_grad
    real(real32), dimension(:,:), intent(out) :: output

    integer :: i, s

    if(this%right_operand%is_scalar)then
       output = upstream_grad * this%right_operand%val(1,1)
    elseif(.not.this%left_operand%is_sample_dependent)then
       do concurrent( s = 1 : size(output,2), i = 1 : size(output,1) )
          output(i,s) = upstream_grad(i,s) * this%right_operand%val(i,1)
       end do
    elseif(.not.this%right_operand%is_sample_dependent)then
       do concurrent( s = 1 : size(output,2), i = 1 : size(output,1) )
          output(i,s) = upstream_grad(i,s) * this%right_operand%val(i,1)
       end do
    elseif(size(upstream_grad,2).ne.size(output,2))then
       do concurrent( s = 1 : size(output,2), i = 1 : size(output,1) )
          output(i,s) = upstream_grad(i,s) * this%right_operand%val(i,1)
       end do
    else
       output = upstream_grad * this%right_operand%val
    end if
  end subroutine get_partial_multiply_left_val