[tab] examples/gpt3/gpt_config.yaml (yaml)
# WARNING: Yaml configs is currently an experimental feature
language_model:
  # model architecture
  num_layers: 24
  hidden_size: 1024
  num_attention_heads: 16
  num_query_groups: null

  ffn_hidden_size: null
  kv_channels: null
  hidden_dropout: 0.0
  attention_dropout: 0.0
  fp32_residual_connection: False

  apply_residual_connection_post_layernorm: False
  layernorm_epsilon: 1.e-5
  layernorm_zero_centered_gamma: True
  add_bias_linear: False
  bias_activation_fusion: False
  add_qkv_bias: False
  gated_linear_unit: False
  activation_func: swiglu
  num_moe_experts: null
  rotary_interleaved: False
  window_size: null

  # initialization
  init_method: null
  init_method_std: 0.02
  output_layer_init_method: null

  # mixed-precision
  apply_query_key_layer_scaling: False
  attention_softmax_in_fp32: False

  # fusion
  bias_swiglu_fusion: True
  masked_softmax_fusion: True
  persist_layer_norm: False
  memory_efficient_layer_norm: False
  bias_dropout_fusion: True
  apply_rope_fusion: True

  # activation recomputation
  recompute_granularity: null
  recompute_method: null
  recompute_num_layers: null
  distribute_saved_activations: null

  # fp8 related
  fp8: null
  fp8_margin: 0
  fp8_interval: 1
  fp8_amax_history_len: 1
  fp8_amax_compute_algo: "most_recent"
  fp8_wgrad: True

  # miscellaneous
  clone_scatter_output_in_embedding: True

  normalization: "LayerNorm"  # alt value supported by TE: "RMSNorm"

  # MoE related
  moe_router_load_balancing_type: "aux_loss"
  moe_router_topk: 2
  moe_router_group_topk: null
  moe_router_num_groups: null
  moe_grouped_gemm: False
  moe_aux_loss_coeff: 0  # 1e-2 would be a good start value for load balance loss.
  moe_z_loss_coeff: null  # 1e-3 would be a good start value for z-loss
  moe_input_jitter_eps: null
  moe_token_dropping: False

model_parallel:
  # Model parallelism
  tensor_model_parallel_size: 1
  context_parallel_size: 1
  pipeline_model_parallel_size: 1
  virtual_pipeline_model_parallel_size: null
  sequence_parallel: True
  expert_model_parallel_size: 1

  # Initialization
  perform_initialization: True
  use_cpu_initialization: null

  # Training
  fp16: False
  bf16: True
  params_dtype: null # Set from above arguments for core
  timers: null

  # Optimizations
  gradient_accumulation_fusion: True
  async_tensor_model_parallel_allreduce: True
  tp_comm_overlap: False

  # Debug Options
  tp_comm_split_ag: True
  tp_comm_atomic_ag: True
  tp_comm_split_rs: True
  tp_comm_atomic_rs: True
  tp_comm_bulk_wgrad: True
  tp_comm_bulk_dgrad: True

  # Parallelism
  finalize_model_grads_func: null

  # Pipeline Parallel
  pipeline_dtype: null
  grad_scale_func: null
  enable_autocast: False
  autocast_dtype: null
  variable_seq_lengths: False
  num_microbatches_with_partial_activation_checkpoints: null
  overlap_p2p_comm: False
  batch_p2p_comm: True
  batch_p2p_sync: True
  use_ring_exchange_p2p: False
  deallocate_pipeline_outputs: False
  no_sync_func: null
  grad_sync_func: null
  param_sync_func: null

  # CPU Offloading
  cpu_offloading: False
  cpu_offloading_num_layers: 0
  _cpu_offloading_context: null
  cpu_offloading_weights: False
  cpu_offloading_activations: True

  # Timing
  barrier_with_L1_time: True

# training:
use_legacy_models: False
spec: null
micro_batch_size: 2
global_batch_size: 128
rampup_batch_size: [32, 32, 65324160] 
check_for_nan_in_loss_and_grad: True
num_layers_per_virtual_pipeline_stage: null

encoder_num_layers: null
decoder_num_layers: null
rotary_seq_len_interpolation_factor: null
add_position_embedding: False
make_vocab_size_divisible_by: 128
group_query_attention: False


exit_signal_handler: False
exit_duration_in_mins: null
exit_interval: null

untie_embeddings_and_output_weights: True
position_embedding_type: rope
rotary_percent: 0.5
openai_gelu: False
squared_relu: False
swiglu: True
onnx_safe: null
bert_binary_head: True
max_position_embeddings: 4096

transformer_impl: local
use_flash_attn: False
seed: 1234
data_parallel_random_init: False

# Optimizer
optimizer: adam
lr: 2.5e-4
lr_decay_style: cosine
lr_decay_iters: null
lr_decay_samples: 255126953
lr_warmup_fraction: null
lr_warmup_iters: 0
lr_warmup_samples: 81381
lr_warmup_init: 0.0
min_lr: 2.5e-5
weight_decay: 0.1
start_weight_decay: null
end_weight_decay: null
weight_decay_incr_style: constant
clip_grad: 1.0
adam_beta1: 0.9
adam_beta2: 0.95
adam_eps: 1.e-08
sgd_momentum: 0.9
override_opt_param_scheduler: False
use_checkpoint_opt_param_scheduler: False

# checkpointing arguments
save: null
save_interval: 20000
no_save_optim: null
no_save_rng: null
load: null
no_load_optim: null
no_load_rng: null
finetune: False
use_checkpoint_args: False
exit_on_missing_checkpoint: False

# loss arguments
loss_scale: null
initial_loss_scale: 4294967296
min_loss_scale: 1.0
loss_scale_window: 1000 
hysteresis: 2
accumulate_allreduce_grads_in_fp32: False
fp16_lm_cross_entropy: False

# distributed arguments
distributed_backend: nccl
distributed_timeout_minutes: 10
overlap_grad_reduce: False
align_grad_reduce: True
overlap_param_gather: False
align_param_gather: False
scatter_gather_tensors_in_pipeline: True
local_rank: null
lazy_mpu_init: null
empty_unused_memory_level: 0
standalone_embedding_stage: False
use_distributed_optimizer: False
nccl_communicator_config_path: null

train_iters: null
eval_iters: 32
eval_interval: 2000
skip_train: False

adlr_autoresume: False
adlr_autoresume_interval: 1000

# garbage collection
manual_gc: False
manual_gc_interval: 0
manual_gc_eval: True

tp_comm_overlap_cfg: null

#data
data_path: null
split: '99,1,0'
train_data_path: null
valid_data_path: null
test_data_path: null
data_cache_path: null
mock_data: False
vocab_size: null
vocab_file: null
merge_file: null
vocab_extra_ids: 0
seq_length: 4096
encoder_seq_length: null
decoder_seq_length: null
retriever_seq_length: 256
sample_rate: 1.0
mask_prob: 0.15
short_seq_prob: 0.1
num_workers: 2
tokenizer_type: GPTSentencePieceTokenizer
tokenizer_model: null
reset_position_ids: False
reset_attention_mask: False
eod_mask_loss: False
train_samples: 268554688
dataloader_type: null

#profile:
profile: False
profile_ranks: [0]
profile_step_end: 12
profile_step_start: 10

#logging:
log_params_norm: True
log_num_zeros_in_grad: True
log_throughput: False
log_progress: False
timing_log_level: 0
timing_log_option: minmax
tensorboard_log_interval: 1
tensorboard_queue_size: 1000
log_timers_to_tensorboard: False
log_validation_ppl_to_tensorboard: False
log_memory_to_tensorboard: False
log_world_size_to_tensorboard: False
log_loss_scale_to_tensorboard: True
wandb_project: ''
wandb_exp_name: ''
wandb_save_dir: ''
enable_one_logger: True
one_logger_project: megatron-lm
one_logger_run_name: null
log_interval: 100
tensorboard_dir: null