class_docstr: This class provides interface functions for users to get the parallel context,
  such as the global rank, the local rank, the world size, etc. of each device.
  
  Note:
      The parallel_mode used in this class should be concluded in ``ParallelMode``.
      More details about ``ParallelMode`` could be found in
      `parallel_mode <https://github.com/hpcaitech/ColossalAI/blob/main/colossalai/context/parallel_mode.py>`_.
docstr: Sets distributed processes to be bound to devices.
  
  Args:
     device_ordinal (int, optional): the device id to be bound to
docstr_tok: ["Sets","distributed","processes","to","be","bound","to","devices",".","Args",":","device_ordinal","(","int",",","optional",")",":","the","device","id","to","be","bound","to"]
code: def set_device(self, device_ordinal: int = None):
      """Sets distributed processes to be bound to devices.
  
      Args:
         device_ordinal (int, optional): the device id to be bound to
      """
      global_rank = self.get_global_rank()
      if device_ordinal is None:
          devices_per_node = torch.cuda.device_count()
          device_ordinal = global_rank % devices_per_node
  
      torch.cuda.set_device(device_ordinal)
      if self._verbose:
          self.logger.info(
              f"process rank {global_rank} is bound to device {device_ordinal}"
          )
  
imports: import random
  import socket
  from collections import Counter
  from typing import Union
  import numpy
  import torch
  import torch.distributed
  from colossalai.context.config import Config
  from colossalai.context.singleton_meta import SingletonMeta
  from colossalai.legacy.constants import ALLOWED_MODES, INITIALIZER_MAPPING
  from colossalai.legacy.global_variables import tensor_parallel_env
  from colossalai.legacy.registry import DIST_GROUP_INITIALIZER
  from colossalai.logging import get_dist_logger
  from .parallel_mode import ParallelMode
  from .random import add_seed, get_seeds, set_mode
label_desc: Use image node_id 34 for calling the ParallelContext obj's underlying member method code with example usage: obj.set_device(device_ordinal) without return types