pytorch

0848ed21 - [c10d] Figure out device to use for object collectives (#100954)

[c10d] Figure out device to use for object collectives (#100954) Fixes https://github.com/pytorch/pytorch/issues/97938 this pr is clone from https://github.com/pytorch/pytorch/pull/100238, which is important to me. But @kwen2501 has not resolved the confliction. So, this pr is submitted to resolve the confliction. the only confliction is `distributed_c10d.py:2653` Pull Request resolved: https://github.com/pytorch/pytorch/pull/100954 Approved by: https://github.com/kwen2501