pytorch

fd684cc3 - Use torch.set_default_dtype in test_data_parallel and rename dtype2prec (#32962)

Use torch.set_default_dtype in test_data_parallel and rename dtype2prec (#32962) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/32962 As per gchanan's comments on https://github.com/pytorch/pytorch/pull/30445, I've used `torch.set_default_dtype` in test_data_parallel instead of specifying dtype=torch.double everywhere. Also, renamed dtype2prec to dtype2prec_DONTUSE ghstack-source-id: 98388429 Test Plan: waitforbuildbot Differential Revision: D19714374 fbshipit-source-id: eb55bbca33881625636ba9ea6dd4cb692f25668e