298d4ad95e
- Added a new function to accurately retrieve the number of allocated CPUs in containerized environments, improving parallel processing efficiency. - Updated the dataset generation function to utilize the new CPU count function, ensuring optimal resource usage during model training. Made-with: Cursor
227 lines
7.1 KiB
Python
227 lines
7.1 KiB
Python
"""
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과거 캔들 데이터로 LightGBM 필터 모델을 학습하고 저장한다.
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사용법: python scripts/train_model.py --data data/xrpusdt_1m.parquet
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"""
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import sys
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from pathlib import Path
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sys.path.insert(0, str(Path(__file__).parent.parent))
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import argparse
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import json
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import math
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from datetime import datetime
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from multiprocessing import Pool, cpu_count
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from pathlib import Path
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import joblib
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import lightgbm as lgb
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import numpy as np
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import pandas as pd
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from sklearn.metrics import roc_auc_score, classification_report
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from src.indicators import Indicators
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from src.ml_features import build_features, FEATURE_COLS
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from src.label_builder import build_labels
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def _cgroup_cpu_count() -> int:
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"""cgroup v1/v2 쿼터를 읽어 실제 할당된 CPU 수를 반환한다.
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LXC/컨테이너 환경에서 cpu_count()가 호스트 전체 코어를 반환하는 문제를 방지한다.
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쿼터를 읽을 수 없으면 cpu_count()를 그대로 사용한다.
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"""
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# cgroup v2
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try:
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quota_path = Path("/sys/fs/cgroup/cpu.max")
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if quota_path.exists():
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parts = quota_path.read_text().split()
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if parts[0] != "max":
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quota = int(parts[0])
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period = int(parts[1])
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return max(1, math.floor(quota / period))
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except Exception:
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pass
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# cgroup v1
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try:
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quota = int(Path("/sys/fs/cgroup/cpu/cpu.cfs_quota_us").read_text())
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period = int(Path("/sys/fs/cgroup/cpu/cpu.cfs_period_us").read_text())
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if quota > 0:
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return max(1, math.floor(quota / period))
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except Exception:
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pass
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return cpu_count()
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LOOKAHEAD = 60
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ATR_SL_MULT = 1.5
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ATR_TP_MULT = 3.0
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MODEL_PATH = Path("models/lgbm_filter.pkl")
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PREV_MODEL_PATH = Path("models/lgbm_filter_prev.pkl")
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LOG_PATH = Path("models/training_log.json")
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def _process_index(args: tuple) -> dict | None:
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"""단일 인덱스에 대해 피처+레이블을 계산한다. Pool worker 함수."""
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i, df_values, df_columns = args
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df = pd.DataFrame(df_values, columns=df_columns)
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window = df.iloc[i - 60: i + 1].copy()
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ind = Indicators(window)
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df_ind = ind.calculate_all()
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if df_ind.isna().any().any():
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return None
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signal = ind.get_signal(df_ind)
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if signal == "HOLD":
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return None
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entry_price = float(df_ind["close"].iloc[-1])
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atr = float(df_ind["atr"].iloc[-1])
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if atr <= 0:
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return None
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stop_loss = entry_price - atr * ATR_SL_MULT if signal == "LONG" else entry_price + atr * ATR_SL_MULT
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take_profit = entry_price + atr * ATR_TP_MULT if signal == "LONG" else entry_price - atr * ATR_TP_MULT
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future = df.iloc[i + 1: i + 1 + LOOKAHEAD]
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label = build_labels(
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future_closes=future["close"].tolist(),
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future_highs=future["high"].tolist(),
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future_lows=future["low"].tolist(),
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take_profit=take_profit,
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stop_loss=stop_loss,
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side=signal,
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)
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if label is None:
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return None
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features = build_features(df_ind, signal)
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row = features.to_dict()
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row["label"] = label
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return row
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def generate_dataset(df: pd.DataFrame, n_jobs: int | None = None) -> pd.DataFrame:
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"""신호 발생 시점마다 피처와 레이블을 병렬로 생성한다."""
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total = len(df)
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indices = range(60, total - LOOKAHEAD)
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workers = n_jobs or max(1, _cgroup_cpu_count() - 1)
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print(f" 병렬 처리: {workers}코어 사용 (총 {len(indices):,}개 인덱스)")
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# DataFrame을 numpy로 변환해서 worker 간 전달 비용 최소화
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df_values = df.values
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df_columns = list(df.columns)
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task_args = [(i, df_values, df_columns) for i in indices]
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rows = []
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errors = []
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chunk = max(1, len(task_args) // (workers * 10))
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with Pool(processes=workers) as pool:
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for idx, result in enumerate(pool.imap(_process_index, task_args, chunksize=chunk)):
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if isinstance(result, dict):
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rows.append(result)
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elif result is not None:
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errors.append(result)
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if (idx + 1) % 10000 == 0:
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print(f" 진행: {idx + 1:,}/{len(task_args):,} | 샘플: {len(rows):,}개")
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if errors:
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print(f" [경고] worker 오류 {len(errors)}건: {errors[0]}")
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if not rows:
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print(" [오류] 생성된 샘플이 없습니다. worker 예외 여부를 확인합니다...")
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# 단일 프로세스로 첫 번째 인덱스를 직접 실행해서 예외 확인
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try:
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test_result = _process_index(task_args[0])
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print(f" 단일 실행 결과: {test_result}")
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except Exception as e:
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import traceback
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print(f" 단일 실행 예외:\n{traceback.format_exc()}")
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return pd.DataFrame(rows)
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def train(data_path: str, n_jobs: int | None = None):
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print(f"데이터 로드: {data_path}")
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df = pd.read_parquet(data_path)
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print(f"캔들 수: {len(df)}")
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print("데이터셋 생성 중...")
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dataset = generate_dataset(df, n_jobs=n_jobs)
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if dataset.empty or "label" not in dataset.columns:
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raise ValueError(f"데이터셋 생성 실패: 샘플 0개. 위 오류 메시지를 확인하세요.")
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print(f"학습 샘플: {len(dataset)}개 (양성={dataset['label'].sum():.0f}, 음성={(dataset['label']==0).sum():.0f})")
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if len(dataset) < 200:
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raise ValueError(f"학습 샘플 부족: {len(dataset)}개 (최소 200 필요)")
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X = dataset[FEATURE_COLS]
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y = dataset["label"]
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split = int(len(X) * 0.8)
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X_train, X_val = X.iloc[:split], X.iloc[split:]
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y_train, y_val = y.iloc[:split], y.iloc[split:]
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model = lgb.LGBMClassifier(
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n_estimators=300,
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learning_rate=0.05,
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num_leaves=31,
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min_child_samples=20,
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subsample=0.8,
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colsample_bytree=0.8,
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class_weight="balanced",
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random_state=42,
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verbose=-1,
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)
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model.fit(
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X_train, y_train,
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eval_set=[(X_val, y_val)],
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callbacks=[lgb.early_stopping(30, verbose=False), lgb.log_evaluation(50)],
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)
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val_proba = model.predict_proba(X_val)[:, 1]
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auc = roc_auc_score(y_val, val_proba)
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print(f"\n검증 AUC: {auc:.4f}")
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print(classification_report(y_val, (val_proba >= 0.60).astype(int)))
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if MODEL_PATH.exists():
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import shutil
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shutil.copy(MODEL_PATH, PREV_MODEL_PATH)
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print(f"기존 모델 백업: {PREV_MODEL_PATH}")
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MODEL_PATH.parent.mkdir(exist_ok=True)
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joblib.dump(model, MODEL_PATH)
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print(f"모델 저장: {MODEL_PATH}")
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log = []
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if LOG_PATH.exists():
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with open(LOG_PATH) as f:
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log = json.load(f)
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log.append({
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"date": datetime.now().isoformat(),
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"auc": round(auc, 4),
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"samples": len(dataset),
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"model_path": str(MODEL_PATH),
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})
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with open(LOG_PATH, "w") as f:
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json.dump(log, f, indent=2)
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return auc
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("--data", default="data/xrpusdt_1m.parquet")
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parser.add_argument("--jobs", type=int, default=None,
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help="병렬 worker 수 (기본: CPU 수 - 1)")
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args = parser.parse_args()
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train(args.data, n_jobs=args.jobs)
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if __name__ == "__main__":
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main()
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