{
  "_comment": "DeepSpeed ZeRO-2 配置 · MP 蒸馏 / 微调（Qwen2.5-1.5B · 5-01 校准 / 4×A100 80G）",
  "_arch_ref": "HLDP-ARCH-002 · factory/training/README.md",
  "_owner": "铸渊 ICE-GL-ZY001 · 2026-05-01",

  "train_micro_batch_size_per_gpu": 4,
  "train_batch_size": "auto",
  "gradient_accumulation_steps": 4,
  "gradient_clipping": 1.0,
  "steps_per_print": 20,

  "bf16": {
    "enabled": true
  },

  "zero_optimization": {
    "stage": 2,
    "allgather_partitions": true,
    "allgather_bucket_size": 500000000,
    "overlap_comm": true,
    "reduce_scatter": true,
    "reduce_bucket_size": 500000000,
    "contiguous_gradients": true
  },

  "optimizer": {
    "type": "AdamW",
    "params": {
      "lr": 5e-5,
      "betas": [0.9, 0.95],
      "eps": 1e-8,
      "weight_decay": 0.05
    }
  },

  "scheduler": {
    "type": "WarmupDecayLR",
    "params": {
      "warmup_min_lr": 0,
      "warmup_max_lr": 5e-5,
      "warmup_num_steps": "auto",
      "total_num_steps": "auto"
    }
  },

  "activation_checkpointing": {
    "partition_activations": true,
    "contiguous_memory_optimization": true
  }
}
