rl-post-train-artifacts / scripts /task0_baseline_common.py
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#!/usr/bin/env python
"""Shared protocol, result and statistics helpers for Task 0 baseline runs."""
from __future__ import annotations
import hashlib
import json
import math
import os
import re
import tempfile
from pathlib import Path
from typing import Any, Iterable
from omegaconf import DictConfig, OmegaConf
PROJECT_ROOT = Path("/data/myx/RL_post_train").resolve()
RESULT_SCHEMA_VERSION = "task0_baseline_episode_v1"
_RANGE_RE = re.compile(r"^(?P<start>\d+)(?:-(?P<end>\d+))?$")
def require_project_path(path: str | Path, *, label: str) -> Path:
"""Resolve a path and reject writes outside the project data boundary."""
resolved = Path(path).expanduser().resolve()
try:
resolved.relative_to(Path("/data/myx").resolve())
except ValueError as exc:
raise ValueError(f"{label} must remain under /data/myx/: {resolved}") from exc
return resolved
def load_config(path: str | Path) -> DictConfig:
path = require_project_path(path, label="config")
if not path.is_file():
raise FileNotFoundError(path)
return OmegaConf.load(path)
def resolved_config_container(cfg: DictConfig) -> dict[str, Any]:
value = OmegaConf.to_container(cfg, resolve=True)
if not isinstance(value, dict):
raise TypeError("baseline config must resolve to a mapping")
return value
def protocol_hash(cfg: DictConfig) -> str:
payload = json.dumps(
resolved_config_container(cfg),
ensure_ascii=False,
sort_keys=True,
separators=(",", ":"),
).encode("utf-8")
return hashlib.sha256(payload).hexdigest()
def write_resolved_config(path: str | Path, cfg: DictConfig) -> None:
path = require_project_path(path, label="resolved config")
path.parent.mkdir(parents=True, exist_ok=True)
OmegaConf.save(cfg, path, resolve=True)
def parse_int_spec(spec: str | Iterable[int], *, label: str) -> list[int]:
"""Parse `0,2-4` style integer specifications deterministically."""
if not isinstance(spec, str):
values = [int(item) for item in spec]
else:
values: list[int] = []
for token in (part.strip() for part in spec.split(",")):
if not token:
continue
match = _RANGE_RE.fullmatch(token)
if not match:
raise ValueError(f"invalid {label} token: {token!r}")
start = int(match.group("start"))
end = int(match.group("end") or start)
if end < start:
raise ValueError(f"descending {label} range: {token!r}")
values.extend(range(start, end + 1))
if not values:
raise ValueError(f"{label} cannot be empty")
unique = sorted(set(values))
if len(unique) != len(values):
raise ValueError(f"{label} contains duplicates")
return unique
def expected_keys(seeds: Iterable[int], trial_ids: Iterable[int]) -> list[tuple[int, int]]:
return [(int(seed), int(trial)) for seed in seeds for trial in trial_ids]
def episode_seed(policy_seed: int, trial_id: int, multiplier: int = 1000) -> int:
if policy_seed < 0 or trial_id < 0 or multiplier <= 0:
raise ValueError("seed components must be non-negative and multiplier positive")
return int(policy_seed) * int(multiplier) + int(trial_id)
def sha256_file(path: str | Path) -> str:
path = Path(path)
digest = hashlib.sha256()
with path.open("rb") as handle:
for block in iter(lambda: handle.read(8 * 1024 * 1024), b""):
digest.update(block)
return digest.hexdigest()
def atomic_json_dump(path: str | Path, payload: dict[str, Any]) -> None:
path = require_project_path(path, label="result")
path.parent.mkdir(parents=True, exist_ok=True)
fd, temporary = tempfile.mkstemp(prefix=f".{path.name}.", suffix=".tmp", dir=path.parent)
temporary_path = Path(temporary)
try:
with os.fdopen(fd, "w", encoding="utf-8") as handle:
json.dump(payload, handle, ensure_ascii=False, indent=2, sort_keys=True)
handle.write("\n")
handle.flush()
os.fsync(handle.fileno())
os.replace(temporary_path, path)
finally:
temporary_path.unlink(missing_ok=True)
def wilson_interval(successes: int, trials: int, z: float = 1.959963984540054) -> tuple[float, float]:
if trials < 0 or successes < 0 or successes > trials:
raise ValueError("successes/trials must satisfy 0 <= successes <= trials")
if trials == 0:
return (math.nan, math.nan)
p = successes / trials
z2 = z * z
denominator = 1.0 + z2 / trials
center = (p + z2 / (2.0 * trials)) / denominator
half = z * math.sqrt(p * (1.0 - p) / trials + z2 / (4.0 * trials * trials)) / denominator
return (max(0.0, center - half), min(1.0, center + half))
REQUIRED_FIELDS = {
"schema_version",
"protocol_version",
"protocol_sha256",
"run_id",
"policy_role",
"benchmark",
"task_id",
"task_name",
"trial_id",
"init_state_sha256",
"policy_seed",
"episode_seed",
"checkpoint_repo",
"checkpoint_revision",
"checkpoint_weight_sha256",
"checkpoint_local_path_relative",
"rlinf_commit",
"openpi_commit",
"libero_commit",
"max_episode_steps",
"reset_settle_steps",
"denoise_steps",
"noise_level",
"num_action_chunks_executed",
"torch_compile_enabled",
"success_once",
"success_step",
"env_steps",
"raw_env_return",
"rlinf_return",
"status",
"retry_count",
"started_at",
"finished_at",
"elapsed_seconds",
"gpu_logical_id",
"gpu_physical_id_if_known",
"error_type",
"error_message",
"video_path",
}
def validate_episode_record(record: dict[str, Any], *, expected_protocol_hash: str | None = None) -> None:
missing = sorted(REQUIRED_FIELDS - record.keys())
if missing:
raise ValueError(f"episode record missing fields: {', '.join(missing)}")
if record["schema_version"] != RESULT_SCHEMA_VERSION:
raise ValueError(f"unexpected schema_version: {record['schema_version']!r}")
if expected_protocol_hash and record["protocol_sha256"] != expected_protocol_hash:
raise ValueError("episode protocol hash does not match config")
if record["status"] not in {"completed", "error"}:
raise ValueError(f"invalid episode status: {record['status']!r}")
if not isinstance(record["trial_id"], int) or record["trial_id"] < 0:
raise ValueError("trial_id must be a non-negative integer")
if not isinstance(record["policy_seed"], int) or record["policy_seed"] < 0:
raise ValueError("policy_seed must be a non-negative integer")
if record["status"] == "completed":
if not isinstance(record["success_once"], bool):
raise ValueError("completed success_once must be bool")
if not (1 <= int(record["env_steps"]) <= int(record["max_episode_steps"])):
raise ValueError("completed env_steps outside episode horizon")
if record["video_path"] is not None:
raise ValueError("formal baseline records must not contain video_path")
def load_episode_records(input_dir: str | Path, *, expected_protocol_hash: str | None = None) -> list[dict[str, Any]]:
root = require_project_path(input_dir, label="result directory")
episode_root = root / "episodes"
records: list[dict[str, Any]] = []
if not episode_root.is_dir():
return records
for path in sorted(episode_root.glob("seed_*/trial_*.json")):
with path.open("r", encoding="utf-8") as handle:
record = json.load(handle)
if not isinstance(record, dict):
raise ValueError(f"episode record is not an object: {path}")
validate_episode_record(record, expected_protocol_hash=expected_protocol_hash)
try:
file_seed = int(path.parent.name.removeprefix("seed_"))
file_trial = int(path.stem.removeprefix("trial_"))
except ValueError as exc:
raise ValueError(f"invalid episode result filename: {path}") from exc
record_key = (int(record["policy_seed"]), int(record["trial_id"]))
if record_key != (file_seed, file_trial):
raise ValueError(
f"episode path/key mismatch: path={(file_seed, file_trial)}, record={record_key}"
)
records.append(record)
return records
def validate_key_set(
records: Iterable[dict[str, Any]],
expected: Iterable[tuple[int, int]],
) -> dict[str, Any]:
expected_set = {(int(seed), int(trial)) for seed, trial in expected}
observed: list[tuple[int, int]] = []
for record in records:
observed.append((int(record["policy_seed"]), int(record["trial_id"])))
observed_set = set(observed)
duplicates = sorted({key for key in observed if observed.count(key) > 1})
return {
"expected_count": len(expected_set),
"observed_count": len(observed),
"unique_count": len(observed_set),
"missing": [list(key) for key in sorted(expected_set - observed_set)],
"unexpected": [list(key) for key in sorted(observed_set - expected_set)],
"duplicates": [list(key) for key in duplicates],
}
def summarize_records(
records: list[dict[str, Any]],
*,
expected: list[tuple[int, int]],
protocol_version: str,
protocol_sha256: str,
) -> dict[str, Any]:
key_report = validate_key_set(records, expected)
completed = [record for record in records if record["status"] == "completed"]
errors = [record for record in records if record["status"] == "error"]
successes = [record for record in completed if record["success_once"]]
n = len(completed)
k = len(successes)
ci_low, ci_high = wilson_interval(k, n)
def values(field: str, subset: list[dict[str, Any]]) -> list[float]:
return [float(item[field]) for item in subset if item[field] is not None]
steps = values("env_steps", completed)
raw_returns = values("raw_env_return", completed)
success_steps = values("success_step", successes)
def stats(items: list[float]) -> dict[str, float | None]:
if not items:
return {"mean": None, "std": None, "median": None}
mean = sum(items) / len(items)
variance = sum((item - mean) ** 2 for item in items) / len(items)
return {"mean": mean, "std": math.sqrt(variance), "median": sorted(items)[len(items) // 2]}
per_seed: dict[str, Any] = {}
for seed in sorted({seed for seed, _ in expected}):
seed_records = [item for item in completed if int(item["policy_seed"]) == seed]
seed_successes = sum(bool(item["success_once"]) for item in seed_records)
seed_low, seed_high = wilson_interval(seed_successes, len(seed_records))
per_seed[str(seed)] = {
"planned": sum(1 for item_seed, _ in expected if item_seed == seed),
"completed": len(seed_records),
"success_count": seed_successes,
"failure_count": len(seed_records) - seed_successes,
"error_count": sum(int(item["policy_seed"]) == seed for item in errors),
"success_rate": seed_successes / len(seed_records) if seed_records else None,
"wilson_95ci": [seed_low, seed_high] if seed_records else [None, None],
}
status = "baseline_v2_complete" if n == len(expected) and not errors and not key_report["missing"] and not key_report["duplicates"] else "incomplete"
if len(expected) == 50 and status == "baseline_v2_complete":
status = "baseline_v1_complete"
return {
"schema_version": RESULT_SCHEMA_VERSION,
"protocol_version": protocol_version,
"protocol_sha256": protocol_sha256,
"planned_episode_count": len(expected),
"observed_episode_count": len(records),
"unique_episode_count": key_report["unique_count"],
"completed_episode_count": n,
"error_episode_count": len(errors),
"success_count": k,
"failure_count": n - k,
"success_rate": k / n if n else None,
"wilson_95ci": [ci_low, ci_high] if n else [None, None],
"key_report": key_report,
"episode_steps": stats(steps),
"raw_env_return": stats(raw_returns),
"success_step": stats(success_steps),
"per_policy_seed": per_seed,
"videos_present": False,
"status": status,
}