lars
893d91e749
validate_marginals now estimates a per-dimension KL(real || generated) via a shared histogram, alongside the existing mean/std comparison, so distribution-shape drift shows up even when the first two moments match. Wire it into giant/train.py: every validate_every epochs (default 10, 0 disables), the training loop runs validate_marginals against val_loader and prints the table. validate_every flows through DEFAULT_CONFIG/config.toml and is exposed as --validate-every on both giant train and scripts/train.py. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
67 lines
2.8 KiB
Python
67 lines
2.8 KiB
Python
import argparse
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from pathlib import Path
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import torch
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from giant import config as gconfig
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from giant.pipeline import run_train_job
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def main() -> None:
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parser = argparse.ArgumentParser(description="Train GIANT surrogate model")
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parser.add_argument("--config", default=None, help="Path to TOML config file")
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parser.add_argument("--data", required=True, help="Path to parquet file or directory")
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parser.add_argument("--mode", choices=["flow", "ddpm"])
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parser.add_argument("--epochs", type=int)
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parser.add_argument("--batch-size", type=int)
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parser.add_argument("--lr", type=float)
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parser.add_argument("--hidden-dim", type=int)
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parser.add_argument("--n-blocks", type=int)
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parser.add_argument("--emb-dim", type=int)
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parser.add_argument("--val-fraction", type=float)
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parser.add_argument("--seed", type=int, help="Random seed for reproducibility")
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parser.add_argument("--validate-every", type=int,
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help="Run marginal+KL validation every N epochs (0 disables)")
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parser.add_argument("--shuffle-buffer", type=int, default=65536,
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help="Rows held in RAM for shuffling per worker (default: 65536)")
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parser.add_argument("--out", default=None, help="Checkpoint output directory (default: auto from hyperparams)")
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parser.add_argument("--device", default=None, help="cpu | cuda | mps (default: auto)")
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parser.add_argument("--num-workers", type=int)
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parser.add_argument("--resume", default=None, help="Checkpoint .pt to resume training from")
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args = parser.parse_args()
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cli_train = {k: v for k, v in {
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"mode": args.mode, "epochs": args.epochs, "batch_size": args.batch_size,
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"lr": args.lr, "val_fraction": args.val_fraction, "num_workers": args.num_workers,
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"seed": args.seed, "validate_every": args.validate_every,
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}.items() if v is not None}
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cli_model = {k: v for k, v in {
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"hidden_dim": args.hidden_dim, "n_blocks": args.n_blocks, "emb_dim": args.emb_dim,
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}.items() if v is not None}
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config_path = Path(args.config) if args.config else None
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cfg = gconfig.merge_cli_overrides(gconfig.DEFAULT_CONFIG, config_path, cli_train, cli_model)
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t, m = cfg["train"], cfg["model"]
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device = torch.device(args.device) if args.device else gconfig.auto_device()
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out_dir = Path(args.out or (
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f"checkpoints/{t['mode']}"
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f"_h{m['hidden_dim']}"
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f"_b{m['n_blocks']}"
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f"_e{m['emb_dim']}"
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f"_lr{t['lr']}"
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f"_bs{t['batch_size']}"
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))
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print(f"device: {device}")
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print(f"out_dir: {out_dir}")
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run_train_job(
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data=Path(args.data), cfg=cfg, out_dir=out_dir, device=device,
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shuffle_buffer=args.shuffle_buffer, num_workers=t["num_workers"],
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resume=Path(args.resume) if args.resume else None, echo=print,
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)
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if __name__ == "__main__":
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main()
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