stan-dev / stan-dev/loo

Speed up loo calcs

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#33 12 comments 0 reactions 0 assignees View on GitHub

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feature
Dominant language
R
Stars
157
Forks
38
Avg merge
4d 16h
Merged PRs (30d)
2

Description

Write offending (slow) underlying functions in C++

Contributor guide

Open the contributing guide

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

The issue names no files, tests, or entry points. Begin by profiling the loo calculations to identify the offending slow underlying functions, then determine which should be rewritten in C++ and measure whether the calculations become faster while retaining their existing results.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, r
Domain
performance
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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