# GDPO: inherits from grpo_math_1B.yaml and overrides only what differs.
defaults: grpo_math_1B.yaml

grpo:
  adv_estimator:
    name: "gdpo"
    normalize_rewards: true
    use_leave_one_out_baseline: false

checkpointing:
  checkpoint_dir: "results/gdpo"

policy:
  model_name: "Qwen/Qwen2.5-1.5B-Instruct"
  logprob_batch_size: 4
  max_total_sequence_length: 1024
  megatron_cfg:
    optimizer:
      weight_decay: 0.0
    scheduler:
      lr_decay_style: "cosine"
      lr_warmup_iters: 10

# GDPO uses a single flat data config (GSM8K); replace parent's train/validation/default.
data:
  _override_: true

  max_input_seq_length: ${policy.max_total_sequence_length}
  shuffle: true
  num_workers: 1

  use_multiple_dataloader: false

  train:
    dataset_name: "gsm8k"
    split: train
  validation:
    dataset_name: "gsm8k"
    split: test

  default:
    prompt_file: null
    system_prompt_file: "examples/prompts/gsm8k.txt"
    processor: "math_hf_data_processor"
    env_name: "math_multi_reward"

env:
  math_multi_reward:
    num_workers: 8
    math_verify_impl: "hf_math_verify"

logger:
  wandb_enabled: true
  wandb:
    project: "gdpo-dev"
    name: "gdpo-dev-logger"
  swanlab:
    project: "gdpo-dev"
    name: "gdpo-dev-logger"
  mlflow:
    experiment_name: "gdpo-dev"
    run_name: "gdpo-dev-logger"