Multithreading

[BTV25]

Accelerate non FMM code

[Copilot]

Pull Request Overview

This PR implements multithreading to accelerate non-FMM code in the FLOWVPM package, improving performance for parallel particle computations.

• Adds multithreading support to particle update loops using Threads.@threads
• Refactors particle state updates into separate functions with thread-safe implementations
• Optimizes data access patterns by replacing iterator-based operations with direct array views

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
test/runtests_singlevortexring.jl	Updates FMM configuration parameters for testing
src/FLOWVPM_utils.jl	Replaces iterator-based array comprehensions with direct array views and adds documentation
src/FLOWVPM_timeintegration.jl	Implements multithreading for particle updates and refactors into thread-safe functions
src/FLOWVPM_subfilterscale.jl	Adds documentation for ConstantSFS struct
src/FLOWVPM_particlefield.jl	Removes internal memory array M and fixes static particle condition checks

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