Document garbage_collection_threshold default

[neoncube2]

📚 The doc issue

It'd be nice if https://pytorch.org/docs/stable/notes/cuda.html#memory-management documented the default for garbage_collection_threshold

Suggest a potential alternative/fix

I think the default is 1.0

cc @svekars @sekyondaMeta @AlannaBurke @ptrblck @msaroufim @eqy @jerryzh168

[neoncube2]

There's something else in the same file that might be nice to fix:

I think pinned_use_cuda_host_register, pinned_num_register_threads, and pinned_use_background_threads should each have their own bullet point. I'm not sure why they're lumped under the expandable_segments flag.

I'm not sure about this, though.

[zhaozheng09]

so what is the default value of garbage_collection_threshold default ?

[ParagEkbote]

/assigntome

[neoncube2]

Thanks, @ParagEkbote! :)