Change AllReduceSimplifier to handle trivial cross-partition all-reduces. #13919
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
![copybara-service[bot]](https://avatars.githubusercontent.com/in/44061?s=60&v=4){kind=small}
copybara-service
bot
force-pushed
the
test_644267887
branch
4 times, most recently
from
dd61877
to
d85384b
Compare
copybara-service
bot
changed the title
copybara-service
bot
force-pushed
the
test_644267887
branch
6 times, most recently
from
3993b7f
to
02e5efc
Compare
…ces. This CL ensures that AllReduceSimplifier can simplify trivial all-reduces (an all-reduce where each subgroup is formed of a single participant) that are not necessarily cross replica (for example a cross partition all-reduce). We only simplify non cross replica all-reduce when the module is SPMD. PiperOrigin-RevId: 646679054
copybara-service
bot
force-pushed
the
test_644267887
branch
from
02e5efc
to
3829a78
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Change AllReduceSimplifier to handle trivial cross-partition all-reduces.
This CL ensures that AllReduceSimplifier can simplify trivial all-reduces (an all-reduce where each subgroup is formed of a single participant) that are not necessarily cross replica (for example a cross partition all-reduce). We only simplify non cross replica all-reduce when the module is SPMD.
FUTURE_COPYBARA_INTEGRATE_REVIEW=#14073 from apivovarov:select_compare_algsimp 6fe68d7