Add finite difference benchmark

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
cpp
Domain
performance

Research direction

Start by reading the linked RAJA issue 1002 to understand the reported differences and the intended finite-difference benchmark. Then locate LvArray's existing benchmark entry points and determine where a RAJA-view comparison belongs; the work is done when the requested benchmark is added and its results expose the observed difference.

Written by the indexing model from the issue text.

Description

effort: 1 day type: benchmarks

@francoishamon saw some striking differences when he switched to the RAJA view, I'd like to add it as a benchmark here.
See https://github.com/LLNL/RAJA/issues/1002

Dominant language
C++
Stars
49
Forks
9
Avg merge
5d 15h
Merged PRs (30d)
1

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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.

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