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⚡ Optimize AMR interpolation with buffer reuse support#258

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perf/amr-interpolation-reuse-2295632786768153110
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⚡ Optimize AMR interpolation with buffer reuse support#258
google-labs-jules[bot] wants to merge 1 commit intomainfrom
perf/amr-interpolation-reuse-2295632786768153110

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@google-labs-jules google-labs-jules bot commented Jan 22, 2026

Added interpolate_into method to ConservativeInterpolator to allow buffer reuse and avoid allocation. Updated interpolate_to_refined to use this method. Added benchmarks showing the performance impact.


PR created automatically by Jules for task 2295632786768153110 started by @ryancinsight

High-level PR Summary

This PR adds a performance optimization to AMR (Adaptive Mesh Refinement) interpolation by introducing an interpolate_into method that allows buffer reuse, avoiding memory allocation overhead. The existing interpolate_to_refined method now has an alternative that accepts a pre-allocated output buffer. Benchmarks were added to measure the performance impact of buffer reuse compared to the original allocation-based approach.

⏱️ Estimated Review Time: 5-15 minutes

💡 Review Order Suggestion
Order File Path
1 src/solver/utilities/amr/interpolation.rs
2 benches/amr_interpolation.rs
3 Cargo.toml

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Added `interpolate_into` method to `ConservativeInterpolator` to allow reusing an output buffer, avoiding allocation overhead in tight loops.
Retained fast path in `interpolate_to_refined` using `clone()`.
Added `benches/amr_interpolation.rs` to measure performance.
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Review by RecurseML

🔍 Review performed on 6e1b866..a22f9f9

✨ No bugs found, your code is sparkling clean

✅ Files analyzed, no issues (3)

Cargo.toml
benches/amr_interpolation.rs
src/solver/utilities/amr/interpolation.rs

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