Source: scripts/run_rgbd_stream_ttt_online_v11.py · Plain text

scripts/run_rgbd_stream_ttt_online_v11.py

#!/usr/bin/env python3
"""Freeze, run and analyze Core B V11 (online stream writes vs the one-shot write, GPU 4).

  --stage freeze  writes the contracts and the preregistration (CPU, CUDA hidden);
  --stage run     on GPU 4 through cv_gpu_run.sh: the sealed evaluation of every seed, an
                  independent recomputation of every metric, the normalized readout, the NEAR/FAR
                  split with model-free masks (checked against V17's sealed ones), the comparison
                  of the shared rows with Core B V8's, the analysis and the README.
Run from the repository root under cv_host_run.py (records store zonghan_o paths).
"""

from __future__ import annotations

import argparse
import datetime
import importlib.util
import json
import os
import subprocess
import sys
from pathlib import Path

import numpy as np
import torch
from PIL import Image

from mcss.dynamic.types import hash_scene_state
from mcss.mechanism_pilot.direct_capacity_statistics import describe, paired
from mcss.mechanism_pilot.geometry_carrier_experiment import read, verify_data
from mcss.mechanism_pilot.rgbd_stream_evaluation_v3 import preseal_depth_audit
from mcss.mechanism_pilot.rgbd_stream_ttt_context_v6 import cohort_records
from mcss.mechanism_pilot.rgbd_stream_ttt_eval_v5 import eval_context
from mcss.mechanism_pilot.rgbd_stream_ttt_v4 import (
    RAYS_PER_FRAME,
    STREAM_LENGTH,
    load_frozen_carrier,
    stream_frame_ids,
)
from mcss.mechanism_pilot.rgbd_stream_ttt_v11 import (
    CONTROLS,
    EXPERIMENT,
    LEARNING_RATE,
    POLICY_SPECS,
    evaluate_v11,
)
from mcss.mechanism_pilot.small_training import sha, write_json
from mcss.mechanism_pilot.statistics import measurement_metrics

COREB_V4 = Path("outputs/EXP-3D-RGBD-DYNAMIC-TTT-V4")
COREB_V8 = Path("outputs/EXP-3D-RGBD-DYNAMIC-TTT-SOURCE-V8")
V7_SPLIT = Path("outputs/EXP-3D-RGBD-DEPTH-BOUNDS-V7")
V17 = Path("outputs/EXP-3D-RGBD-LONG-TRAIN-V17")
CONCURRENT = ("EXP-3D-RGBD-DYNAMIC-TTT-DOSE-V9", "EXP-3D-RGBD-DYNAMIC-TTT-CARRIER-V10")
PLAN = "PLAN_BEFORE_COREB_V11.md"
PLAN_SHA256 = "94a461e290f66de3fad7fbcd368b3dec9e56b228a112624b5e759336fcb63174"
CARRIER_STEP = 24000
COHORTS = ("EVAL_V3", "EVAL_V4")
EXPECTED_SPLIT = {name: name for name in COHORTS}
SPECS = dict(POLICY_SPECS)
SHARED_WITH_V8 = ("NO_STREAM", "OFF", "TTT_100")
GPU = "4"
LAUNCHER = Path.home() / "cv_tools/cv_host_run.py"
THREADS = {
    "OMP_NUM_THREADS": "1",
    "OPENBLAS_NUM_THREADS": "1",
    "MKL_NUM_THREADS": "1",
    "ATEN_CPU_CAPABILITY": "avx2",
    "MKL_CBWR": "AVX2",
    "DNNL_MAX_CPU_ISA": "AVX2",
    "NVIDIA_TF32_OVERRIDE": "0",
}
CONTRASTS = {
    "ONLINE_GAIN": ("OFF", "ONLINE_100"),
    "REPLAY_GAIN": ("ONLINE_NEW_100", "ONLINE_100"),
    "ONLINE_VS_ONE_SHOT": ("ONLINE_100", "TTT_100"),
    "STREAM_TTT_100": ("OFF", "TTT_100"),
    "ONLINE_NEW_GAIN": ("OFF", "ONLINE_NEW_100"),
    "ALL_TTT_GAIN": ("OFF", "ALL_TTT_100"),
    "CONTEXT_ON_TOP_OF_STREAM": ("TTT_100", "ALL_TTT_100"),
    "ONLINE_SPECIFICITY": ("ONLINE_100_WRONG_SCENE", "ONLINE_100"),
    "STREAM_CACHE_EFFECT": ("NO_STREAM", "OFF"),
}
# Midpoint contrasts: mean of two policies minus a third (positive: the third keeps over half).
MIDPOINTS = {"ONLINE_RETAINS_HALF": (("OFF", "TTT_100"), "ONLINE_100")}
PRIMARY = {
    "P1_ONLINE_GAIN_STATUS": "ONLINE_GAIN",
    "P2_ONLINE_RETAINS_HALF_STATUS": "ONLINE_RETAINS_HALF",
    "P3_REPLAY_GAIN_STATUS": "REPLAY_GAIN",
}
DRAWS, BOOT_SEED = 10000, 20260928
METRICS = ("rgb_mse", "depth_absrel", "depth_rmse", "depth_delta1", "opacity", "coverage")
KEYS = ("seed", "cohort", "scene_id", "role", "query_id", "policy")
SCRIPTS = Path("scripts")


def module(name, filename):
    spec = importlib.util.spec_from_file_location(name, SCRIPTS / filename)
    loaded = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(loaded)
    return loaded


def v3_analysis():
    """Core B V3's scene aggregation and frozen V2 gate (as in Core B V4-V10)."""
    return module("coreb_v3_analysis_v11", "analyze_rgbd_stream_write_v3.py")


def resolve(path, base):
    path = Path(path)
    return path if path.is_absolute() else Path(base) / path


def load_cohorts(root):
    """{cohort: (manifest, base)} from the frozen cohort lock, every manifest hash-checked."""
    lock = read(Path(root) / "cohort_lock.json")
    cohorts = {}
    for name in COHORTS:
        item = lock[name]
        if sha(Path(item["manifest"])) != item["manifest_sha256"]:
            raise PermissionError(f"{name} manifest changed")
        cohorts[name] = (read(Path(item["manifest"])), Path(item["manifest"]).parent)
    return cohorts


def verify_lock_v11(root):
    """The preregistration's input and source hashes (verify_lock without a TRAIN/DEV split)."""
    lock = read(Path(root) / "preregistration.json")
    if lock["status"] != "FROZEN_BEFORE_FORMAL_TRAINING":
        raise PermissionError("Formal preregistration absent")
    for section in ("input_sha256", "source_sha256"):
        for name, digest in lock[section].items():
            if sha(Path(name)) != digest:
                raise PermissionError(f"Frozen input/source changed: {name}")
    return read(Path(root) / "evaluation_contract.json")


def seal_previous(root):
    """Every earlier experiment file, except this round's and the concurrently running ones."""
    files = {}
    for base in (Path("outputs"), Path("docs/experiments")):
        for path in sorted(base.rglob("*")):
            if path.is_file() and not {EXPERIMENT, *CONCURRENT} & set(path.parts):
                files[str(path)] = {"sha256": sha(path), "bytes": path.stat().st_size}
    write_json(
        root / "audit/previous_experiment_seal.json",
        {
            "created_utc": datetime.datetime.now(datetime.UTC).isoformat(),
            "excluded_concurrent": list(CONCURRENT),
            "files": files,
        },
    )
    return len(files)


def freeze(root):
    root = Path(root).resolve()
    if root.name != EXPERIMENT or (root / "preregistration.json").exists():
        raise PermissionError("Exact, unfrozen Core B V11 directory required")
    if not (root / "PROTOCOL.md").is_file() or sha(root / PLAN) != PLAN_SHA256:
        raise PermissionError("The Core B V11 plan and protocol must be in place")
    for done in (COREB_V4, COREB_V8):
        if read(done / "integrity.json")["status"] != "PASS":
            raise PermissionError(f"{done.name} must be finalized")
    if read(COREB_V4 / "selection.json")["settings"]["learning_rate"] != LEARNING_RATE:
        raise PermissionError("TTT must use the learning rate Core B V4 selected on TRAIN")
    if sha(LAUNCHER) != sha(Path("../_archives_cv/cv_host_run.py")):
        raise PermissionError("The path-mapping launcher must equal the migrated one")
    carriers = read(COREB_V4 / "carrier_lock.json")
    for seed, item in carriers["carriers"].items():
        if sha(Path(item["path"])) != item["sha256"] or item["step"] != CARRIER_STEP:
            raise PermissionError(f"V17 step-{CARRIER_STEP} carrier changed: {seed}")
        load_frozen_carrier(item["path"], "cpu")
    write_json(root / "carrier_lock.json", carriers)
    contract = read(V17 / "training_contract.json")["eval"]["cohorts"]
    lock = {}
    for name in COHORTS:
        entry = contract[name]
        if sha(Path(entry["manifest"])) != entry["manifest_sha256"]:
            raise PermissionError(f"{name} manifest is not V17's")
        lock[name] = {"manifest": entry["manifest"], "manifest_sha256": entry["manifest_sha256"]}
    write_json(root / "cohort_lock.json", lock)
    entries = cohort_records(load_cohorts(root), EXPECTED_SPLIT)
    split = read(V7_SPLIT / "scene_split.json")
    used = {r["scene_id"] for r in split["scenes"]} | set(split.get("protected_scene_ids", []))
    if used & set(entries):
        raise PermissionError("EVAL scenes must be disjoint from TRAIN72, DEV and the holdout")
    episodes = {}
    for sid, (_, record, _, _) in sorted(entries.items()):
        for role in ("A", "B"):
            ids = stream_frame_ids(record, role)
            if ids is None:
                raise PermissionError(f"{sid}/{role} lacks a full stream")
            episodes[f"{sid}/{role}"] = list(ids)
    write_json(
        root / "stream_roles.json",
        {
            "rule": "Core B V1-V10 frame-id rule",
            "stream_length": STREAM_LENGTH,
            "episodes": episodes,
        },
    )
    config = {
        "experiment": EXPERIMENT,
        "seeds": sorted(int(s) for s in carriers["carriers"]),
        "policies": {name: list(spec) for name, spec in SPECS.items()},
        "controls": CONTROLS,
        "learning_rate": LEARNING_RATE,
        "online_schedule": "steps / stream length Adam steps after each arrival; one optimizer",
        "settings_source": "learning rate: Core B V4 selection (TRAIN); 100 steps: V23 dose arms "
        "and Core B V7/V8; no selection on EVAL-V3/V4 in this round",
        "rays_per_supervised_frame": RAYS_PER_FRAME,
        "stream_length": STREAM_LENGTH,
        "cohorts": {name: len([s for s in entries.values() if s[0] == name]) for name in COHORTS},
        "near_masks": "V11 geometry + INPAINT-V1 near_mask, checked against V17's sealed masks",
        "num_threads": 1,
        "thread_environment": THREADS,
        "cpu_affinity": list(range(56, 64)),
        "device": "cuda",
        "gpu": GPU,
        "host_launcher": {"path": str(LAUNCHER), "sha256": sha(LAUNCHER)},
    }
    write_json(root / "evaluation_contract.json", config)
    write_json(
        root / "decision_rules.json",
        {
            "aggregation": "per seed: scene mean of role means of query AbsRel; seeds equally "
            "weighted",
            "bootstrap": {"unit": "scene", "draws": DRAWS, "seed": BOOT_SEED},
            "gate": "frozen V2 primary-contrast checks (as Core B V2-V10)",
            "P1_ONLINE_GAIN_STATUS": "gate on AbsRel(OFF) - AbsRel(ONLINE_100)",
            "P2_ONLINE_RETAINS_HALF_STATUS": "gate on (AbsRel(OFF) + AbsRel(TTT_100)) / 2 - "
            "AbsRel(ONLINE_100)",
            "P3_REPLAY_GAIN_STATUS": "gate on AbsRel(ONLINE_NEW_100) - AbsRel(ONLINE_100)",
            "interpretation": {
                "A": "P1 and P2 SUPPORTED",
                "B": "only P1 SUPPORTED",
                "C": "P1 not SUPPORTED",
                "P3": "reported on its own; it does not change the branch",
            },
            "descriptive": [c for c in CONTRASTS if c not in PRIMARY.values()],
            "final_holdout": "never opened",
        },
    )
    sealed = seal_previous(root)
    data_hashes = {}
    for _, record, _, base in entries.values():
        for frame in record["frames"]:
            for key in ("rgb", "depth"):
                path = resolve(frame[key], base)
                data_hashes[str(path)] = sha(path)
    write_json(root / "audit/data_hashes.json", data_hashes)
    names = (
        "carrier_lock.json",
        "cohort_lock.json",
        "stream_roles.json",
        "evaluation_contract.json",
        "decision_rules.json",
        "PROTOCOL.md",
        PLAN,
        "audit/data_hashes.json",
        "audit/previous_experiment_seal.json",
    )
    sources = sorted(Path("src/mcss").rglob("*.py"))
    sources += sorted(SCRIPTS.glob("*rgbd_stream_ttt_online_v11*.py"))
    sources += [
        SCRIPTS / "analyze_rgbd_stream_write_v3.py",
        SCRIPTS / "run_rgbd_geometric_baselines.py",
        SCRIPTS / "run_rgbd_inpaint_baselines.py",
        LAUNCHER,
    ]
    write_json(
        root / "preregistration.json",
        {
            "status": "FROZEN_BEFORE_FORMAL_TRAINING",
            "experiment": EXPERIMENT,
            "input_sha256": {str((root / n).resolve()): sha(root / n) for n in names},
            "source_sha256": {str(p.resolve()): sha(p) for p in sources},
            "data_sha256": data_hashes,
            "formal_training_started": False,
        },
    )
    print(
        "FROZEN_CORE_B_V11",
        len(entries),
        "scenes",
        len(episodes),
        "episodes",
        sealed,
        "files sealed",
    )


def contrast_values(v3, rows, name, seed=None):
    """(left, right) scene values of one plain or midpoint contrast."""
    if name in MIDPOINTS:
        (a, b), c = MIDPOINTS[name]
        left = v3.scene_values(rows, a, seed=seed)
        other = v3.scene_values(rows, b, seed=seed)
        return {s: (left[s] + other[s]) / 2 for s in left}, v3.scene_values(rows, c, seed=seed)
    a, b = CONTRASTS[name]
    return v3.scene_values(rows, a, seed=seed), v3.scene_values(rows, b, seed=seed)


def analyze(rows, seeds, primary=True):
    """Every contrast with Core B V3's aggregation and the frozen V2 gate; the plan's branch."""
    v3 = v3_analysis()
    policies = sorted({r["policy"] for r in rows})
    absolute = {
        p: describe(v3.scene_values(rows, p), draws=DRAWS, seed=BOOT_SEED)["mean"] for p in policies
    }
    contrasts, statuses = {}, {}
    for name in (*CONTRASTS, *MIDPOINTS):
        left, right = contrast_values(v3, rows, name)
        stats = paired(left, right, draws=DRAWS, seed=BOOT_SEED)
        status, _ = v3.gate(stats, True)
        contrasts[name] = {
            "mean": stats["mean"],
            "ci95": stats["ci95"],
            "positive_tied_negative": [stats["positive"], stats["tied"], stats["negative"]],
            "gate_descriptive": status,
        }
        for key, value in PRIMARY.items():
            if value == name:
                statuses[key] = status
    p1 = statuses["P1_ONLINE_GAIN_STATUS"] == "SUPPORTED"
    p2 = statuses["P2_ONLINE_RETAINS_HALF_STATUS"] == "SUPPORTED"
    branch = "A" if p1 and p2 else "B" if p1 else "C"
    per_seed = {}
    for seed in seeds:
        per_seed[str(seed)] = {}
        for name in (*CONTRASTS, *MIDPOINTS):
            left, right = contrast_values(v3, rows, name, seed=seed)
            per_seed[str(seed)][name] = float(np.mean(list(left.values()))) - float(
                np.mean(list(right.values()))
            )
    return {
        "absolute": absolute,
        "contrasts": contrasts,
        "statuses": statuses if primary else {},
        "INTERPRETATION_BRANCH": branch if primary else None,
        "per_seed_means": per_seed,
    }


def near_masks(cohorts):
    """{(scene, role, query): NEAR mask} from each role's measured context depth (model-free)."""
    geo = module("v11_geometry", "run_rgbd_geometric_baselines.py")
    inp = module("v11_inpaint", "run_rgbd_inpaint_baselines.py")
    masks = {}
    for _, record, manifest, base in cohort_records(cohorts, EXPECTED_SPLIT).values():
        for role, context in eval_context(record, manifest, base, "cpu", []).items():
            points = geo.context_points(context)
            for qid in record["roles"]["primary_query"]:
                camera = geo.query_camera(record, qid, manifest["image_size"])
                _, hit = geo.reproject(points, camera)
                masks[record["scene_id"], role, qid] = inp.near_mask(hit)
    return masks


def v17_mask_agreement(masks):
    """Every NEAR mask present in V17's EVAL-V3/V4 seals must equal the sealed one."""
    seals = {}
    for name in COHORTS:
        path = V17 / "raw/eval" / name / "prediction_seal.json"
        if path.is_file():
            seals[name] = read(path)["predictions"]
    compared = 0
    for (sid, role, qid), mask in masks.items():
        found = [
            s[f"{n}/{sid}/{role}/{qid}"] for n, s in seals.items() if f"{n}/{sid}/{role}/{qid}" in s
        ]
        if not found:
            continue
        if sha(Path(found[0]["path"])) != found[0]["sha256"]:
            raise PermissionError("A V17 sealed prediction changed")
        if not np.array_equal(np.load(found[0]["path"])["near"].astype(bool), mask):
            raise AssertionError(f"NEAR mask differs from V17's: {sid}/{role}/{qid}")
        compared += 1
    return {"compared": compared, "identical": compared}


def row_agreement(rows, theirs):
    """Per shared policy: AbsRel matched to another round's rows of the same seed and query."""
    keys = ("seed", "cohort", "scene_id", "role", "query_id")

    def values(items, policy):
        return {
            tuple(r[k] for k in keys): r["depth_absrel"] for r in items if r["policy"] == policy
        }

    out = {}
    for policy in SHARED_WITH_V8:
        a, b = values(rows, policy), values(theirs, policy)
        diffs = [abs(a[k] - b[k]) for k in sorted(set(a) & set(b))]
        out[policy] = {
            "rows": len(a),
            "compared": len(diffs),
            "identical": sum(d == 0 for d in diffs),
            "max_abs_difference": max(diffs, default=0.0),
            "mean_abs_difference": float(np.mean(diffs)) if diffs else 0.0,
        }
    return out


def v8_agreement(rows):
    """NO_STREAM, OFF and TTT_100 against Core B V8's (same carrier, episodes and generators)."""
    path = COREB_V8 / "raw/eval_ttt_query_results.json"
    return row_agreement(rows, read(path) if path.is_file() else [])


def recompute(root, cohorts, rows, masks):
    """Every metric from the saved prediction and GT; NORM and NEAR/FAR rows; the seals."""
    entries = cohort_records(cohorts, EXPECTED_SPLIT)
    worst = 0.0
    derived = {"NORM": [], "FAR": [], "NEAR": []}
    for row in rows:
        path = Path(root) / "raw/eval_ttt" / f"seed_{row['seed']}" / row["prediction_path"]
        if sha(path) != row["prediction_file_sha256"]:
            raise AssertionError("Prediction changed")
        pred = dict(np.load(path))
        _, record, _, base = entries[row["scene_id"]]
        frame = next(f for f in record["frames"] if f["frame_id"] == row["query_id"])
        with Image.open(resolve(frame["rgb"], base)) as image:
            rgb = np.array(image.convert("RGB"), dtype=np.float32) / 255
        gt = np.load(resolve(frame["depth"], base)).squeeze()
        metrics = measurement_metrics(pred["rgb"], rgb, pred["depth"], gt, pred["opacity"])
        for key in METRICS:
            worst = max(worst, abs(metrics[key] - row[key]))
        common = {k: row[k] for k in KEYS}
        depth = pred["depth"] / np.maximum(pred["opacity"], 1e-3)
        norm = measurement_metrics(pred["rgb"], rgb, depth, gt, pred["opacity"])
        derived["NORM"].append({**common, "depth_absrel": norm["depth_absrel"]})
        valid = np.isfinite(gt) & (gt > 0)
        near = masks[row["scene_id"], row["role"], row["query_id"]]
        for region, mask in (("FAR", valid & ~near), ("NEAR", valid & near)):
            if mask.any():
                value = np.abs(pred["depth"][mask] - gt[mask]) / gt[mask]
                derived[region].append({**common, "depth_absrel": float(value.mean())})
    if worst > 1e-6:
        raise AssertionError(f"Metric mismatch {worst}")
    records = {sid: item[1] for sid, item in entries.items()}
    for seed in {r["seed"] for r in rows}:
        out = Path(root) / "raw/eval_ttt" / f"seed_{seed}"
        audit = read(out / "integrity.json")
        if sha(out / "states.pt") != audit["states_file_sha256"]:
            raise AssertionError("Sealed states changed")
        states = torch.load(out / "states.pt", map_location="cpu", weights_only=False)
        index = read(out / "state_hashes.json")
        if any(hash_scene_state(s) != index[k]["state_hash"] for k, s in states.items()):
            raise AssertionError("State hash mismatch")
        access = read(out / "GT_access.json")
        marker = next(
            i for i, e in enumerate(access) if e.get("event") == "ALL_STREAM_STATES_SEALED"
        )
        preseal_depth_audit(access[:marker], records)
    return worst, derived


def ttt_descriptives(root, seeds):
    out = {}
    for policy, (_, supervision, _) in SPECS.items():
        if supervision is None:
            continue
        first, last, norms = [], [], []
        for seed in seeds:
            index = read(Path(root) / "raw/eval_ttt" / f"seed_{seed}" / "state_hashes.json")
            for item in index.values():
                if item["policy"] == policy:
                    first.append(item["ttt_loss_first"])
                    last.append(item["ttt_loss_last"])
                    norms.append(item["fast_norm"])
        drop = np.array(first) - np.array(last)
        out[policy] = {
            "episodes": len(first),
            "loss_first_median": float(np.median(first)),
            "loss_last_median": float(np.median(last)),
            "share_with_lower_loss": float((drop > 0).mean()),
            "fast_norm_median": float(np.median(norms)),
        }
    return out


def stat(value):
    lo, hi = value["ci95"]
    pos, tie, neg = value["positive_tied_negative"]
    return f"{value['mean']:+.4f} [{lo:+.4f}, {hi:+.4f}],场景 {pos}/{tie}/{neg}"


def report(root, result):
    main = result["primary"]
    c, s = main["contrasts"], main["statuses"]
    lines = [
        f"# {EXPERIMENT}",
        "",
        "Core B 第十一轮:逐帧在线写入(每到一帧缓存并写 25 步,共 100 步)"
        "能否保住一次性写入(4 帧都到达后写 100 步)的增益。"
        "队列是 EVAL-V3 ∪ EVAL-V4(83 个场景),carrier 是 V17 L 第 24000 步。"
        "计划见 [PLAN_BEFORE_COREB_V11.md](PLAN_BEFORE_COREB_V11.md)。"
        "全部在 GPU(4 号卡,关闭 TF32)上进行,不能逐位复现。",
        "",
        f"- **P1 ONLINE_GAIN(OFF − ONLINE_100):** {stat(c['ONLINE_GAIN'])},"
        f"{s['P1_ONLINE_GAIN_STATUS']}",
        "- **P2 ONLINE_RETAINS_HALF(½(OFF + TTT_100) − ONLINE_100):** "
        f"{stat(c['ONLINE_RETAINS_HALF'])},{s['P2_ONLINE_RETAINS_HALF_STATUS']}",
        f"- **分支 {main['INTERPRETATION_BRANCH']}**",
        f"- **P3 REPLAY_GAIN(ONLINE_NEW_100 − ONLINE_100):** {stat(c['REPLAY_GAIN'])},"
        f"{s['P3_REPLAY_GAIN_STATUS']}",
        f"- **在线与一次性之差(ONLINE_100 − TTT_100):** {stat(c['ONLINE_VS_ONE_SHOT'])}",
        f"- **一次性写入(OFF − TTT_100):** {stat(c['STREAM_TTT_100'])}",
        f"- **只监督最新一帧(OFF − ONLINE_NEW_100):** {stat(c['ONLINE_NEW_GAIN'])}",
        f"- **再加上下文监督:** OFF − ALL_TTT_100 {stat(c['ALL_TTT_GAIN'])};"
        f"TTT_100 − ALL_TTT_100 {stat(c['CONTEXT_ON_TOP_OF_STREAM'])}",
        f"- **特异性(ONLINE_100_WRONG_SCENE − ONLINE_100):** {stat(c['ONLINE_SPECIFICITY'])}",
        f"- **缓存新帧(NO_STREAM − OFF):** {stat(c['STREAM_CACHE_EFFECT'])}",
        "",
        "| 策略 | query AbsRel | 归一化读出 | NEAR | FAR |",
        "|---|---|---|---|---|",
    ]
    for policy in (*SPECS, *CONTROLS):
        lines.append(
            f"| {policy} | {main['absolute'][policy]:.4f} | "
            f"{result['normalized_readout']['absolute'][policy]:.4f} | "
            f"{result['regions']['NEAR']['absolute'][policy]:.4f} | "
            f"{result['regions']['FAR']['absolute'][policy]:.4f} |"
        )
    lines += [
        "",
        "| 分组(描述性) | ONLINE_GAIN | ONLINE_RETAINS_HALF | ONLINE_VS_ONE_SHOT | REPLAY_GAIN |",
        "|---|---|---|---|---|",
    ]
    for name, part in (
        ("归一化读出", result["normalized_readout"]),
        ("NEAR", result["regions"]["NEAR"]),
        ("FAR", result["regions"]["FAR"]),
        *((cohort, part) for cohort, part in result["per_cohort"].items()),
    ):
        pc = part["contrasts"]
        lines.append(
            f"| {name} | {stat(pc['ONLINE_GAIN'])} | {stat(pc['ONLINE_RETAINS_HALF'])} | "
            f"{stat(pc['ONLINE_VS_ONE_SHOT'])} | {stat(pc['REPLAY_GAIN'])} |"
        )
    v8 = result["core_b_v8_agreement"]
    lines += [
        "",
        "- **每个 seed:** "
        + ";".join(
            f"{k}: ONLINE_GAIN {v['ONLINE_GAIN']:+.4f},"
            f"ONLINE_RETAINS_HALF {v['ONLINE_RETAINS_HALF']:+.4f},"
            f"REPLAY_GAIN {v['REPLAY_GAIN']:+.4f}"
            for k, v in main["per_seed_means"].items()
        ),
        "- **被监督帧自身的损失(中位数):** "
        + ";".join(
            f"{p} {v['loss_first_median']:.4f} → {v['loss_last_median']:.4f}"
            f"({100 * v['share_with_lower_loss']:.0f}% 下降)"
            for p, v in result["ttt"].items()
        )
        + "。在线写入的第一步只监督第 1 帧,最后一步监督已到达的全部帧(ONLINE_100)"
        "或只监督第 4 帧(ONLINE_NEW_100),首末两步的损失不能直接比较。",
        "- **与 Core B V8 的一致性(描述性):** "
        + ";".join(
            f"{p} {v['identical']}/{v['compared']} 行相同,最大差 {v['max_abs_difference']:.2e}"
            for p, v in v8.items()
        ),
        f"- **NEAR 掩码:** 与 V17 封存的掩码比较 {result['v17_mask_agreement']['compared']} 个,"
        "全部相同。",
        "",
        "说明:EVAL-V3/V4 在 Core A 中反复使用,在 Core B V5、V8、V10 与 V23 中也使用过;"
        "受保护的 final holdout 未打开。冻结时 Core B V9、V10 可能仍在运行,不在本轮的封存范围内。",
    ]
    (Path(root) / "README.md").write_text("\n".join(lines) + "\n")


def run(root):
    root = Path(root).resolve()
    config = verify_lock_v11(root)
    verify_data(root)
    if read(root / "tests.json")["status"] != "PASS":
        raise PermissionError("Full suite must PASS before the run")
    if not os.sched_getaffinity(0) <= set(config["cpu_affinity"]):
        raise PermissionError("Run must be pinned to the frozen CPU cores (taskset)")
    if os.environ.get("CUDA_VISIBLE_DEVICES") != config["gpu"]:
        raise PermissionError("Run must hold the frozen GPU through cv_gpu_run.sh")
    if sha(LAUNCHER) != config["host_launcher"]["sha256"] or not os.environ.get("CV_ROOT"):
        raise PermissionError("The frozen launcher and CV_ROOT are required")
    for key, value in config["thread_environment"].items():
        if os.environ.get(key) != value:
            raise PermissionError(f"Thread environment {key} must be {value}")
    torch.set_num_threads(1)
    lock = read(root / "carrier_lock.json")["carriers"]
    carriers = {int(s): load_frozen_carrier(item["path"], "cuda")[0] for s, item in lock.items()}
    cohorts = load_cohorts(root)
    rows = []
    for seed, carrier in sorted(carriers.items()):
        out = root / "raw/eval_ttt" / f"seed_{seed}"
        seed_rows = evaluate_v11(
            carrier, cohorts, EXPECTED_SPLIT, out, seed, "cuda", SPECS, CONTROLS
        )
        rows.extend(seed_rows)
        print("EVALUATED", seed, len(seed_rows), flush=True)
    write_json(root / "raw/eval_ttt_query_results.json", rows)
    masks = near_masks(cohorts)
    agreement = v17_mask_agreement(masks)
    worst, derived = recompute(root, cohorts, rows, masks)
    seeds = sorted(carriers)
    result = {
        "primary": analyze(rows, seeds),
        "normalized_readout": analyze(derived["NORM"], seeds, primary=False),
        "regions": {
            region: analyze(derived[region], seeds, primary=False) for region in ("NEAR", "FAR")
        },
        "per_cohort": {
            name: analyze([r for r in rows if r["cohort"] == name], seeds, primary=False)
            for name in COHORTS
        },
        "v17_mask_agreement": agreement,
        "core_b_v8_agreement": v8_agreement(rows),
        "ttt": ttt_descriptives(root, seeds),
        "max_rgb_clamp_excess": max(r["rgb_clamp_max_excess"] for r in rows),
    }
    result["INTERPRETATION_BRANCH"] = result["primary"]["INTERPRETATION_BRANCH"]
    write_json(root / "ttt_online_results.json", result)
    for name, values in derived.items():
        write_json(root / f"raw/{name.lower()}_rows.json", values)
    old = read(root / "audit/previous_experiment_seal.json")["files"]
    changed = [p for p, info in old.items() if sha(Path(p)) != info["sha256"]]
    if changed:
        raise AssertionError(f"Old experiment files changed: {changed[:3]}")
    write_json(
        root / "integrity.json",
        {
            "status": "PASS",
            "metrics_recomputed": len(rows),
            "max_metric_error": worst,
            "old_files_unchanged": len(old),
            "settings_reselected": False,
            "slow_carrier_updated": False,
            "final_holdout_touched": False,
            "commit": subprocess.check_output(["git", "rev-parse", "HEAD"], text=True).strip(),
            "finished_utc": datetime.datetime.now(datetime.UTC).isoformat(),
        },
    )
    report(root, result)
    print(
        "CORE_B_V11_COMPLETE",
        result["INTERPRETATION_BRANCH"],
        json.dumps(result["primary"]["statuses"]),
        flush=True,
    )


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--root", required=True)
    parser.add_argument("--stage", choices=("freeze", "run"), required=True)
    args = parser.parse_args()
    if args.stage == "freeze":
        freeze(args.root)
    else:
        run(args.root)
    sys.exit(0)