stablelm-3b-4e1t.yml

{
  # parallelism settings
  "pipe-parallel-size": 1,
  "model-parallel-size": 1,

  # model settings
  "num-layers": 32,
  "hidden-size": 2560,
  "num-attention-heads": 32,
  "seq-length": 4096,
  "max-position-embeddings": 4096,

  # architecture design
  "attention_head_type": "multihead",
  "norm": "layernorm",
  "pos-emb": "rotary",
  "rotary_pct": 0.25,
  "rotary_interleaved": false,
  "mlp_multiple_of": 256,
  "mlp_type": "gated",
  "activation": "silu",
  "no-weight-tying": true,
  "gpt_j_residual": false,
  "gpt_j_tied": false,
  "output_layer_parallelism": "column",

  # init methods
  "output_layer_init_method": "scaled_normal",

  # biases
  "use_bias_in_norms": true,
  "use_bias_in_attn_linear": false,
  "use_bias_in_mlp": false,

  # fused ops
  "attention-config": [[["flash"], 32]],

  # optimizer settings
  "optimizer": {
    "type": "Adam",
    "params": {
      "lr": 3.2e-4,
      "betas": [0.9, 0.95],
      "eps": 1.0e-6
    },
  },
  "min_lr": 1.28e-5,  # Decay to 4% of lr
  # 955_000 iters ~= 4.0T tokens at bs=4M
  "train-iters": 955_000,
  "lr-decay-iters": 955_000,
  "lr-decay-style": "cosine",
  "warmup": 0.005,  # ~5k warmup steps

  # ZeRO settings
  "zero_optimization": {
    "stage": 1,
    "allgather_partitions": true,
    "allgather_bucket_size": 1260000000,
    "overlap_comm": true,
    "reduce_scatter": true,
    "reduce_bucket_size": 1260000000,
    "contiguous_gradients": true,
    "cpu_offload": false,
  },

  # batch / data settings
  "train_micro_batch_size_per_gpu": 4,
  "gradient_accumulation_steps": 1,
  "data-impl": "mmap",
  "eval-interval": 5_000,
  "eval-iters": 10,
  "eval_batch_size": 8,
  "eval_tasks": [],

  # activation checkpointing
  "checkpoint-activations": true,
  "checkpoint-num-layers": 1,
  "partition-activations": true,
  "synchronize-each-layer": true,

  # regularization
  "gradient_clipping": 1.0,
  "weight-decay": 0.1,
  "hidden-dropout": 0,
  "attention-dropout": 0,

  # precision settings
  "bf16": { "enabled": true },
  "precision": "bfloat16",
  "full_precision_lm_cross_entropy": true,

  # misc. training settings
  "num-workers": 2,
  "distributed-backend": "nccl",

  # checkpoint settings
  "checkpoint-factor": 2_000,
  "s3_sync_interval": 10_000,
  "extra-save-iters": [0],
  "save": "",
  "load": "",
  "s3_path": "",

  # data path settings
  "train-data-paths": [],
  "train-data-weights": [],
  "valid-data-paths": [],
  "valid-data-weights": [],
  "test-data-paths": [],
  "test-data-weights": [],

  # tokenizer settings
  "tokenizer-type": "HFTokenizer",
  "vocab-file": "neox-tokenizer-vocab.json",

  # log settings
  "log-interval": 10,
  "steps_per_print": 10,
  "wall_clock_breakdown": true,

  "use_wandb": true,
  "wandb_host": "",
  "wandb_team": "",
  "wandb_project": "",
  "wandb_group": "",
  "wandb_name": "",
  # "wandb_id": "",
  # "wandb_resume": "",

  # multi-node launcher
  "launcher": "slurm",
  "deepspeed_slurm": true,
}