Improve benchmarking code

[efaulhaber]

This PR improves the usability of the benchmarking code, makes the particle distribution more realistic, and uses a more realistic search radius of 4 x spacing.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.94%. Comparing base (70dfeab) to head (5daba76).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

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  Coverage   87.94%   87.94%           
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  Files          15       15           
  Lines         622      622           
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  Hits          547      547           
  Misses         75       75           

Flag	Coverage Δ
unit	87.94% <100.00%> (ø)

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[Copilot]

Pull Request Overview

This PR improves the benchmarking code by enhancing the particle distribution perturbation, updating benchmark functions to use a realistic search radius, and introducing both default and GPU benchmark runs. The key changes include updating the perturbation logic in point cloud generation, refactoring benchmark functions to pass a parallelization backend, and replacing the old plotting module with a new run_benchmarks module.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/point_cloud.jl	Adjusted the perturbation factor and updated the perturb! function to use a normal distribution.
test/benchmarks.jl	Replaced plot-based benchmark calls with run_benchmark_default and added GPU benchmark calls.
benchmarks/update.jl	Modified the benchmark_initialize and update_alternating! functions to use a parallelization_backend.
benchmarks/smoothed_particle_hydrodynamics.jl	Refactored the WCSPH benchmark to delegate to an inner function and update particle_spacing usage.
benchmarks/run_benchmarks.jl	Introduced new benchmarking routines and plotting support.
benchmarks/plot.jl	Removed in favor of the new run_benchmarks.jl module.
benchmarks/n_body.jl	Updated function signature for benchmark_n_body to accept a parallelization_backend.
benchmarks/count_neighbors.jl	Updated function signature for benchmark_count_neighbors similarly.
benchmarks/benchmarks.jl	Redirected the include directive to load run_benchmarks.jl instead of the deprecated plot.jl.

Comments suppressed due to low confidence (1)

benchmarks/run_benchmarks.jl:40

• There is an extra trailing apostrophe after the array comprehension for names. Remove the apostrophe and use commas for separation to ensure correct array syntax.

                       names = ["NeighborhoodSearch $i" for i in 1:length(neighborhood_searches)]',