Skip to content

Bitmap topk#3009

Draft
tdophung wants to merge 4 commits into
NVIDIA:mainfrom
tdophung:bitmap_topk
Draft

Bitmap topk#3009
tdophung wants to merge 4 commits into
NVIDIA:mainfrom
tdophung:bitmap_topk

Conversation

@tdophung
Copy link
Copy Markdown
Collaborator

@tdophung tdophung commented May 18, 2026

Description

Helps NCCL EP not have to do the token_indices (sparse format) to bitmap format for comms later.

Fixes #2999

Type of change

  • Documentation change (change only to the documentation, either a fix or a new content)
  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • Infra/Build change
  • Code refactoring

Changes

Checklist:

  • I have read and followed the contributing guidelines
  • The functionality is complete
  • I have commented my code, particularly in hard-to-understand areas
  • I have made corresponding changes to the documentation
  • My changes generate no new warnings
  • I have added tests that prove my fix is effective or that my feature works
  • New and existing unit tests pass locally with my changes

tdophung and others added 4 commits May 18, 2026 11:29
Signed-off-by: tdophung <tdophung@nvidia.com>
Without this XLA_FFI_REGISTER_ENUM_ATTR_DECODING the FFI handler
templates cannot instantiate AttrDecoding<JAXX_Routing_Map_Format>,
breaking the JAX build in router.cpp.

Signed-off-by: tdophung <tdophung@nvidia.com>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

Output routing map from fused_topk_with_scores in bitmap format

1 participant