[pytorch] deprecate default_op_deps.yaml (#59573)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59573
To do mobile selective build, we have several options:
1. static dispatch;
2. dynamic dispatch + static analysis (to create the dependency graph);
3. dynamic dispatch + tracing;
We are developing 3. For open source, we used to only support 1, and
currently we support both 1 and 2.
This file is only used for 2. It was introduced when we deprecated
the static dispatch (1). The motivation was to make sure we have a
low-friction selective build workflow for dynamic dispatch (2).
As the name indicates, it is the *default* dependency graph that users
can try if they don't bother to run the static analyzer themselves.
We have a CI to run the full workflow of 2 on every PR, which creates
the dependency graph on-the-fly instead of using the committed file.
Since the workflow to automatically update the file has been broken
for a while, it started to confuse other pytorch developers as people
are already manually editing it, and it might be broken for some models
already.
We reintroduced the static dispatch recently, so we decide to deprecate
this file now and automatically turn on static dispatch if users run
selective build without providing the static analysis graph.
The tracing-based selective build will be the ultimate solution we'd
like to provide for OSS, but it will take some more effort to polish
and release.
Differential Revision:
D28941020
D28941020
Test Plan: Imported from OSS
Reviewed By: dhruvbird
Pulled By: ljk53
fbshipit-source-id: 9977ab8568e2cc1bdcdecd3d22e29547ef63889e
