stan-dev / stan-dev/stanc3

Post-2.40: Move loop vectorization to O1

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optimization
Dominant language
OCaml
Stars
160
Forks
59
Avg merge
21h 45m
Merged PRs (30d)
26

Description

As discussed in #1683

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

Start by reading the discussion in issue #1683, which this issue references, to understand why loop vectorization should move to O1. Then locate the loop-vectorization implementation and its optimization-level configuration. Done means the intended vectorization behavior is available at O1 as specified by that discussion.

Written by the indexing model from the issue text.

Assessment

Tech stack
ocaml
Domain
compilers, performance
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
25/100

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