RoaringBitmap / RoaringBitmap/roaring-rs

Vectorized bitset iteration

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Dominant language
Rust
Stars
957
Forks
119
Avg merge
3d 3h
Merged PRs (30d)
1

Description

https://lemire.me/blog/2018/03/08/iterating-over-set-bits-quickly-simd-edition/

Note: Implementing for conversion between bitmap and array is a good place to start. Doing it over a lazy iterator will be more challenging.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Read the linked SIMD bit-iteration article first, then inspect the bitmap-to-array and array-to-bitmap conversion paths mentioned in the issue. A first milestone is a vectorized conversion implementation; lazy-iterator support is explicitly more challenging, so confirm the intended scope before proceeding.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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