scipp / scipp/scipp

Multi-threading of reduction operations with small inner dimensions

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Dominant language
C++
Stars
146
Forks
23
Avg merge
2d 7h
Merged PRs (30d)
7

Description

See #3335 for context.

This was not implemented due to some extra complexity, and at the time we said "we will implement it if we have real workloads that depend on this".

Note that there is multi-threading for 1-D arrays. A similar approach might be adopted here.

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

Start with issue #3335 for context and inspect the existing multithreading approach for 1-D arrays. Determine how that approach could apply to reduction operations with small inner dimensions; done means those operations are multithreaded without regressing existing behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data, performance
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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