#!/usr/bin/env python3 """Five interleaved L80 timings for assembler/world and the L137 candidate.""" from __future__ import annotations import json import os import re import statistics import subprocess import time from pathlib import Path ROOT = Path(__file__).resolve().parents[4] OUT = ROOT / "Saved/Linux/l137/timing/final" DATA = ROOT / "Standalone/data/owner_world.json" BINARIES = { "assembler-world": ( ROOT / "Saved/Linux/l137/bin/VoxelForgeCoreHeadless-l137-aa-a", "4499fb2a8a4ede7d6cbc68d1b794f104658cdaae93ed9cacbc91fe7ff3fc3621"), "l137": ( ROOT / "Saved/Linux/l137/fast/bin/VoxelForgeCoreHeadless-fast-clang", "dcf2ffa55fd6d62b3c7faf76229c3b99c635868dc1b694fc6e8f39e738775a4e"), } 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), } PIPELINE = re.compile(r"^\[StreamPipeline\] (.*)$", re.M) FIELDS = re.compile(r"([a-zA-Z0-9_]+)=([^ ]+)") NEAR = re.compile( r"^\[WorldAssemblerNearLODReady\] lods=0-2 tiles=(\d+)/(\d+) cold_ready_s=([0-9.]+)$", re.M) STAMP = re.compile(r"^\[VoxelForgeSourceStamp\] sha256=([0-9a-f]+)$", re.M) def run(strate: int, workers: int, version: str, phase: str, replicate: int) -> dict: OUT.mkdir(parents=True, exist_ok=True) binary, expected_stamp = BINARIES[version] camera = ",".join(f"{value:.12f}" for value in CAMERAS[strate]) + ",0,0" label = f"s{strate}-w{workers}-{version}-{phase}{replicate}" log = OUT / f"{label}.log" command = [ "taskset", "-c", "0-11", "prlimit", "--as=6442450944", "--", "timeout", "1740s", str(binary), str(DATA), "--world-assembler-prototype", "--stream-benchmark", "--stream-pipeline", f"--workers={workers}", "--clip-radius=3", "--max-clip-level=8", "--max-level=8", f"--camera={camera}", "--profile-lod-work", "--stream-scheduler-policy=3", ] started = time.monotonic() with log.open("w", encoding="utf-8") as output: result = subprocess.run(command, cwd=ROOT, stdout=output, stderr=subprocess.STDOUT, check=False, timeout=1740) content = log.read_text(encoding="utf-8", errors="replace") pipeline, near, stamp = PIPELINE.search(content), NEAR.search(content), STAMP.search(content) if (result.returncode or pipeline is None or near is None or stamp is None or stamp.group(1) != expected_stamp): raise SystemExit(f"L80 timing failed or stamp mismatch: {log}; exit={result.returncode}") fields = dict(FIELDS.findall(pipeline.group(1))) row = { "strate": strate, "workers": workers, "version": version, "phase": phase, "replicate": replicate, "source_stamp": stamp.group(1), "lod02_ready_s": float(near.group(3)), "whole_view_ready_s": float(fields["whole_view_ready"].removesuffix("s")), "whole_tiles": int(fields["whole_tiles"].split("/")[0]), "wall_s": round(time.monotonic() - started, 3), "log": str(log.relative_to(ROOT)), } print("[L137FinalTimingRun] " + json.dumps(row, sort_keys=True), flush=True) return row def quiet_machine() -> tuple[float, float]: load_1m = os.getloadavg()[0] def totals() -> tuple[int, int]: fields = Path("/proc/stat").read_text().splitlines()[0].split() values = [int(value) for value in fields[1:]] return sum(values), values[3] + values[4] before = totals() time.sleep(2.0) after = totals() idle = 100.0 * (after[1] - before[1]) / max(1, after[0] - before[0]) return load_1m, idle def main() -> int: if any(not path.is_file() for path in [DATA, *(entry[0] for entry in BINARIES.values())]): raise SystemExit("missing L137 timing input") OUT.mkdir(parents=True, exist_ok=True) load_1m, idle = quiet_machine() (OUT / "machine-load-before.txt").write_text( f"1-minute load: {load_1m:.2f}\n2-second CPU idle: {idle:.1f}%\n") print(f"[L137FinalTimingGate] load_1m={load_1m:.2f} cpu_idle_2s={idle:.1f}%", flush=True) if load_1m >= 0.9 or idle < 97.0: raise SystemExit("timing refused: machine is above the L80 quiet-load gate") rows = [] for strate in range(4): for workers in (8, 12): for version in BINARIES: run(strate, workers, version, "warmup", 0) for replicate in range(1, 6): order = tuple(BINARIES) if replicate % 2 else tuple(reversed(BINARIES)) for version in order: rows.append(run(strate, workers, version, "measured", replicate)) (OUT / "runs-partial.json").write_text( json.dumps(rows, indent=2) + "\n", encoding="utf-8") measured = [row for row in rows if row["phase"] == "measured"] summary = [] for strate in range(4): for workers in (8, 12): group = [row for row in measured if row["strate"] == strate and row["workers"] == workers] entry = {"strate": strate, "workers": workers, "replicates_per_version": 5} medians = {} for version in BINARIES: version_rows = [row for row in group if row["version"] == version] medians[version] = { key: statistics.median(row[key] for row in version_rows) for key in ("lod02_ready_s", "whole_view_ready_s")} for key in medians[version]: entry[f"{version}_{key}_values"] = [row[key] for row in version_rows] entry[f"{version}_{key}_median"] = medians[version][key] for key in ("lod02_ready_s", "whole_view_ready_s"): entry[f"l137_vs_assembler-world_{key}_delta_pct"] = round( 100.0 * (medians["l137"][key] / medians["assembler-world"][key] - 1.0), 2) entry[f"{key}_paired_deltas_pct"] = [ round(100.0 * (next(row[key] for row in group if row["version"] == "l137" and row["replicate"] == replicate) / next(row[key] for row in group if row["version"] == "assembler-world" and row["replicate"] == replicate) - 1.0), 3) for replicate in range(1, 6)] summary.append(entry) (OUT / "summary.json").write_text(json.dumps( {"runs": rows, "summary": summary}, indent=2) + "\n", encoding="utf-8") return 0 if __name__ == "__main__": raise SystemExit(main())