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food_chain/README.md
33333-33333 f5fc9b76ce publish
2026-09-29 23:45:12 +09:00

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Mandelbrot Viewer — runtime-cost removal build

Production source of truth is index.html.

This build starts from the integrated five-improvement viewer and applies the A/B-supported runtime-cost removals. The numerical architecture remains direct f32 / perturbation + series / sparse recovery / finite continuation / CPU fallback.

Validation

node tests/regression.mjs
node experiments/ab/variant_check.mjs index.html
node experiments/ab/supplement.mjs
node experiments/integrated_bench.mjs docs/removal-pass/integrated-bench.json

The optional real-browser WebGPU test is tests/browser_smoke.mjs; it requires Chromium with a working WebGPU backend.

Current records

  • docs/removal-pass/IMPLEMENTATION.md — why each runtime cost was removed or retained
  • docs/removal-pass/results.json — structural checks, hashes, and A/B evidence
  • docs/removal-pass/integrated-bench.json — post-removal CPU/surrogate benchmark

Historical investigation records remain under docs/performance-cost-audit/ and docs/integrated-improvements/.

Reported deep-view artifact fix (2026-09-29)

A reported deep URL exposed an unsafe 4th-order series jump and premature publication of FAST numerical failures. Production series acceleration is disabled pending a propagated error-bound redesign, and FAST provisional publication now occurs only after numerical failure repair. See docs/reported-view-bugfix/IMPLEMENTATION.md.