ds_config.json

{
  "bf16": {
    "enabled": "auto"
  },
  "fp16": {
    "enabled": "auto",
    "loss_scale": 0,
    "loss_scale_window": 1000,
    "initial_scale_power": 16,
    "hysteresis": 2,
    "min_loss_scale": 1
  },
  "scheduler": {
    "type": "OneCycle",
    "params": {
      "cycle_min_lr": 1e-7,
      "cycle_max_lr": 1e-4
    }
  },
  "zero_optimization": {
    "stage": 2,
    "overlap_comm": true,
    "allgather_partitions": true,
    "allgather_bucket_size": 5e8,
    "contiguous_gradients": true,
    "reduce_bucket_size": "auto",
    "reduce_scatter": true,
    "stage3_gather_16bit_weights_on_model_save": true
  },
  "gradient_accumulation_steps": "auto",
  "gradient_clipping": "auto",
  "steps_per_print": 5,
  "train_batch_size": "auto",
  "train_micro_batch_size_per_gpu": "auto",
  "wall_clock_breakdown": false,
  "round_robin_gradients": true
}