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0.12.21# ===== Model =====
2
3base_model: google/gemma-3-4b-it
4processor_type: AutoProcessor
5
6chat_template: gemma3
7
8# 멀티모달(비전-챗) 필수 플래그
9skip_prepare_dataset: true
10remove_unused_columns: false
11sample_packing: false
12
13#shuffle_merged_datasets: false
14#shuffle_before_merging_datasets: false # (기본 false지만 명시 추천)
15
16ddp_find_unused_parameters: true
17
18
19# ===== Data =====
20eot_tokens:
21 - <end_of_turn>
22datasets:
23 - path: vlm_data_2025101_1/gemma3-4b-v-KoV_0.0.0.jsonl
24 type: chat_template
25 field_messages: messages
26 split: null
27
28val_set_size: 0.0
29dataset_prepared_path:
30
31# ===== Output / Logging =====
32output_dir: ./outputs/gemma3-4b-v-KoV_0.0.0.jsonl
33logging_steps: 1
34
35# wandb 연동(원하면 변경/주석)
36wandb_entity: minkyun1
37wandb_project: kisti_vlm_axo
38wandb_name: gemma3-4b-v-KoV_0.0.0.jsonl
39
40# ===== LoRA / Quantization =====
41#adapter: lora
42# LLaVA에서 언어모델 쪽 프로젝션에만 LoRA(안전 기본값)
43#lora_r: 256
44#lora_alpha: 512
45#lora_dropout: 0.05
46#lora_target_modules: "model.language_model.layers.[\\d]+.(mlp|cross_attn|self_attn).(up|down|gate|q|k|v|o)_proj"
47
48# 메모리 여유 충분하지만, 시작은 4bit 로 안정적으로
49load_in_4bit: false
50load_in_8bit: false
51bf16: true
52tf32: true
53gradient_checkpointing: true
54gradient_checkpointing_kwargs:
55 use_reentrant: false
56flash_attention: true
57eager_attention:
58
59# ===== Optim & Train =====
60optimizer: adamw_torch_fused
61learning_rate: 4e-5
62lr_scheduler: cosine
63warmup_ratio: 0.05
64weight_decay: 0.01
65max_grad_norm: 1.0
66seed: 42
67sequence_len: 8192
68pad_to_sequence_len: false
69excess_length_strategy: drop
70
71# GPU당 마이크로 배치/누적 → 유효 배치 = 1 * 8 * 2GPU = 16
72micro_batch_size: 1
73gradient_accumulation_steps: 16
74
75num_epochs: 5
76evals_per_epoch: 1
77saves_per_epoch: 1
78# save_first_step: true
79
80# ===== Multi-GPU: DeepSpeed (추천) =====
81# deepspeed 프리셋을 받아서 사용:
82# axolotl fetch deepspeed_configs
83# 2×A100 80GB + 7B에는 zero2가 빠르고 안정적
84deepspeed: ds_zero2.json
85
86# ===== 디버그/재현성(선택) =====
87# 데이터 전처리 멀티프로세스가 문제 생기면 1로 낮춰서 원인 파악
88# dataset_processes: 1
89
90# ===== [대안] FSDP2 설정(DeepSpeed 대신 쓰고 싶을 때) =====
91# fsdp_version: 2
92# fsdp_config:
93# offload_params: false
94# cpu_ram_efficient_loading: true
95# auto_wrap_policy: TRANSFORMER_BASED_WRAP
96# transformer_layer_cls_to_wrap: LlamaDecoderLayer
97# state_dict_type: FULL_STATE_DICT
98# reshard_after_forward: true
99