Files
VoxelForge/Standalone/Research/WorldAssemblerM3/Linux82/RunL82Hashes.py
T
Fr0zkaandClaude Opus 5.5 f572108dc4 passages: exact relief skip + per-tile BVH node masks (L82); FI/TN LOD0-2 -12%
- Wall relief noise is skipped when its hard-bounded contribution cannot change the final max;
  mouth surface/tread noise only on paths that use it.
- Exact active BVH-node masks cached per tile/passage/segment range; no per-sample lower_bound.
- Full-view audit imports the exported Core plan (not the stale 26-point root route): 21,425/21,425
  walkability samples pass.
Cold (L80 protocol, medians) LOD0-2: SW 1.16->1.11, FI 2.86->2.51, TN 2.88->2.54, VS 1.23->1.22 s.
Passage share FI 64.6->58.7%, TN 65.4->58.4%. Hashes identical (v214). TN "slowdown" from L81
not reproduced (5 pairs, 3.08 -> 2.75 s). Fast tier PASS; Linux UE host builds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1
2026-10-27 23:46:15 +01:00

100 lines
4.3 KiB
Python

#!/usr/bin/env python3
"""Compare L81 and L82 per-tile hashes over each four-strate LOD0-1 view."""
from __future__ import annotations
import json
import re
import subprocess
import time
from pathlib import Path
ROOT = Path(__file__).resolve().parents[4]
OUT = ROOT / "Saved/Linux/l82/hash-check"
DATA = ROOT / "Standalone/data/owner_world.json"
BINARIES = {
"L81": ROOT / "Saved/Linux/l81/bin/VoxelForgeCoreHeadless-l81-clang",
"L82": ROOT / "Saved/Linux/l82/bin/VoxelForgeCoreHeadless-clang19",
}
CAMERAS = {
0: (8.0, 16.0, -372.2626953125),
1: (25.8369140625, 3.19921875, -737.0),
2: (19.166015625, -14.2001953125, -753.3740234375),
3: (-20.0625, -5.068359375, -900.353515625),
}
TILE_HASH = re.compile(
r"^\[PipelineTileHash\] lod=(-?\d+) x=(-?\d+) y=(-?\d+) z=(-?\d+) "
r"density=(0x[0-9a-f]+) mesh=(0x[0-9a-f]+) payload=(0x[0-9a-f]+) "
r"topology=(0x[0-9a-f]+)$", re.M)
WHOLE_HASH = re.compile(
r"^\[PipelineWholeViewHash\] tiles=(\d+) density=(0x[0-9a-f]+) "
r"mesh=(0x[0-9a-f]+) payload=(0x[0-9a-f]+) topology=(0x[0-9a-f]+)$", re.M)
def run(strate: int, version: str) -> dict:
OUT.mkdir(parents=True, exist_ok=True)
log = OUT / f"{version.lower()}-s{strate}.log"
camera = ",".join(f"{v:.12f}" for v in CAMERAS[strate]) + ",0,0"
command = [
"taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--",
"env", "VOXELFORGE_L81_PASSAGE_BOUND_PADDING_VOXELS=0", "timeout", "1740s",
str(BINARIES[version]), str(DATA), "--world-assembler-prototype",
"--stream-benchmark", "--stream-pipeline", "--workers=8", "--clip-radius=3",
"--max-clip-level=8", "--max-level=1", f"--camera={camera}",
"--stream-hash-tiles",
]
start = time.monotonic()
with log.open("w", encoding="utf-8") as stream:
result = subprocess.run(command, cwd=ROOT, stdout=stream,
stderr=subprocess.STDOUT, check=False, timeout=1740)
output = log.read_text(encoding="utf-8", errors="replace")
hashes = {
(int(m.group(1)), int(m.group(2)), int(m.group(3)), int(m.group(4))): m.group(5, 6, 7, 8)
for m in TILE_HASH.finditer(output)
}
whole = WHOLE_HASH.search(output)
if result.returncode or whole is None or len(hashes) != 960:
raise RuntimeError(f"hash run failed or incomplete: exit={result.returncode} {log}")
row = {
"version": version, "strate": strate, "exit_code": result.returncode,
"wall_s": round(time.monotonic() - start, 3), "tile_hash_count": len(hashes),
"whole_hash": whole.group(1, 2, 3, 4, 5), "hashes": hashes,
"log": str(log.relative_to(ROOT)),
}
print("[L82HashRun] " + json.dumps(
{k: v for k, v in row.items() if k != "hashes"}, sort_keys=True), flush=True)
return row
def main() -> int:
for binary in (*BINARIES.values(), DATA):
if not binary.is_file():
raise SystemExit(f"missing input: {binary}")
rows = []
comparisons = []
for strate in range(4):
pair = {version: run(strate, version) for version in ("L81", "L82")}
a, b = pair["L81"], pair["L82"]
mismatch_keys = sorted(key for key in set(a["hashes"]) | set(b["hashes"])
if a["hashes"].get(key) != b["hashes"].get(key))
comparison = {
"strate": strate, "tiles": len(a["hashes"]),
"tile_hashes_identical": not mismatch_keys,
"whole_hash_identical": a["whole_hash"] == b["whole_hash"],
"mismatch_count": len(mismatch_keys),
"first_mismatches": mismatch_keys[:8],
"l81_whole_hash": a["whole_hash"], "l82_whole_hash": b["whole_hash"],
}
comparisons.append(comparison)
rows.extend({k: v for k, v in run_data.items() if k != "hashes"}
for run_data in pair.values())
print("[L82HashComparison] " + json.dumps(comparison, sort_keys=True), flush=True)
summary = {"comparisons": comparisons, "runs": rows}
(OUT / "summary.json").write_text(json.dumps(summary, indent=2) + "\n",
encoding="utf-8")
return 0 if all(item["tile_hashes_identical"] and item["whole_hash_identical"]
for item in comparisons) else 1
if __name__ == "__main__":
raise SystemExit(main())