code: def gather_pinned_tensor_rows(tensor, rows):
      """Directly gather rows from a CPU tensor given an indices array on CUDA devices,
      and returns the result on the same CUDA device without copying.
  
      Parameters
      ----------
      tensor : Tensor
          The tensor.  Must be in pinned memory.
      rows : Tensor
          The rows to gather.  Must be a CUDA tensor.
  
      Returns
      -------
      Tensor
          The result with the same device as :attr:`rows`.
      """
      return F.from_dgl_nd(
          _CAPI_DGLIndexSelectCPUFromGPU(
              F.to_dgl_nd(tensor), F.to_dgl_nd(rows)
          )
      )
  
imports: from ..None import backend
  from .._ffi.function import _init_api
  from ..base import DGLError
label_desc: Use image node_id 2 for calling a global function with example usage: gather_pinned_tensor_rows(tensor, rows) and returns: F