pytorch

a1186d6a - [dtensor][1/N] add __hash__ to device_mesh and dtensor_spec (#90731)

[dtensor][1/N] add __hash__ to device_mesh and dtensor_spec (#90731) This PR adds __hash__ to device_mesh and dtensor_spec to allow things like dict indexing Pull Request resolved: https://github.com/pytorch/pytorch/pull/90731 Approved by: https://github.com/XilunWu, https://github.com/fduwjj